Eugene E. Wolfel, MD

• Professor, Department of Medicine
• Medical Director
• Cardiovascular Rehabilitation Program
• Division of Cardiology
• University of Colorado Denver
• Aurora, Colorado

Acknowledgments this entry was made possible through the support of a grant from the John Templeton Foundation (#23145) erectile dysfunction systems discount malegra dxt plus online visa. Author Biographies Aya Avishai is a PhD student in the Department of Psychology and Neuroscience at the University of North Carolina at Chapel Hill erectile dysfunction tools order malegra dxt plus canada. Paschal Sheeran is a professor in the Department of Psychology and Neuroscience at the University of North Carolina at Chapel Hill erectile dysfunction videos malegra dxt plus 160 mg order on-line. His research takes a selfregulation perspective on emotion control and health behavior change and has been published in Psychological Bulletin erectile dysfunction drugs in ghana malegra dxt plus 160 mg buy online, Psychological Science doctor for erectile dysfunction in dubai cheap malegra dxt plus 160 mg buy, and Health Psychology. Snack purchasing is healthier when the cognitive demands of choice are reduced: A randomized controlled trial. Reversing the sequence: Reducing alcohol consumption by over coming alcohol attentional bias. Implementation intentions and goal achievement: A metaanal ysis of effects and processes. Using aversive images to enhance healthy food choices and implicit attitudes: An experimental test of evaluative conditioning. Resisting temptation: Decreasing alcoholrelated affect and drinking behavior by training response inhibition. Getting a grip on drinking behavior: Training working memory to reduce alcohol abuse. Health goal priming as a situated intervention tool: How to benefit from noncon scious motivational routes to health behavior. Photographs in lunch tray compartments and vegetable consumption among children in elementary school cafeterias. Automatic risk behavior: Direct effects of binge drinker stereotypes on drinking behavior. Attentional retraining decreases attentional bias in heavy drinkers without generalization. Clinical effectiveness of attentional bias modification training in abstinent alcoholic patients. Changing human behavior to prevent disease: the importance of targeting automatic processes. Cognitive bias modification and cognitive control training in addiction and related psychopathology: Mechanisms, clinical perspectives, and ways forward. Relationship Status and Quality People who are in a happy relationship tend to evidence better health than those who are not in a relationship or are in a poorquality relationship. According to a recent metaanalysis, marital quality is linked to health via multiple pathways, including physiological markers, health behaviors, and direct health outcomes (Robles, Slatcher, Trombello, & McGinn, 2014). Cortisol is released into the bloodstream in response to environmental stressors, and it affects metabolic, immune, and nervous system functioning. Over time, the continued release of cortisol may have adverse effects on the body, which can increase *The first and second authors contributed equally to this entry. Conversely, a flattened cortisol slope (low reactivity) in response to a stressor also serves as an index of psychological maladjustment and is typically associated with selfregulatory problems under chronic stress. Consistent with this idea, poorer marital quality has been related to flatter cortisol responses throughout the day for men and women. Women in more satisfying relationships, however, show greater morning cortisol levels and a steeper decline in cortisol levels throughout a typical work day, indicating better physiological recovery from work than women who were less satisfied with their marriages. Additionally, spouses who reported greater marital satisfaction showed less convergence in cortisol patterns during a discussion of relationship conflict (Laws, Sayer, Pietromonaco, & Powers, 2015). Functioning of the cardiovascular system is another biological indicator of health, and lower reactivity is generally better. Overall, individuals in highquality marriages have lower cardiovascular reactivity than single individuals and even more so than individuals in lowquality marriages. Similarly, marital dissatisfaction has been associated with higher blood pressure among individuals with mild hypertension. These findings indicate that relationship quality- not just relationship status-matters for health. For men, in contrast, being married buffered against elevations in Creactive protein, another marker of inflammation, compared with men who were unmarried. It has also been found that older, happily married individuals may evidence stronger antibody responses than those who are unmarried, bereaved, or in an unhappy marriage. Furthermore, it has been found that people who perceive that their relationship contains both positive and negative aspects have greater inflammation compared with those who perceived their relationship in a primarily positive way, suggesting that relationship ambivalence has negative consequences for health. Relationship Quality and Health Behavior Being in a relationship can motivate healthenhancing behaviors, perhaps because those behaviors are viewed as a shared goal for both members of the couple. Furthermore, individuals in a relationship may have greater support in seeking healthcare and following treatment regimens. For instance, while married individuals generally show healthier sleep patterns than unmarried individuals, being in a more satisfying marriage is associated with fewer sleep disturbances in women. Couples in more satisfying marriages also are more likely to use healthcare services than couples in distressed marriages. In contrast, greater relationship dissatisfaction tends to promote healthcompromising behaviors, such as greater alcohol consumption. Intimate Relationships and Physical Health 339 Relationship Quality, Mortality, and Disease Recovery Mortality risk is generally lower among those who are married versus unmarried, who marry later in life, or who have been married for a longer period. In addition, being in a relationship has been linked to lower morbidity and higher survival rates after the diagnosis of different diseases or surgery, such as cardiovascular disease, coronary heart disease, hospitaldiagnosed infectious diseases, and coronary artery bypass grafting. For example, greater marital quality predicted a better survival rate over 8 years for patients with heart failure, especially among women (see Robles et al. Similarly, greater relationship negativity predicted a higher risk of coronary heart disease. Additionally, the risk of coronary artery calcification was higher when both partners had positive and negative (ambivalent) perceptions of each other than when one partner had ambivalent perceptions and the other perceived the partner as purely positive (Uchino, Smith, & Berg, 2014). Attachment and Health Based on daytoday experiences in close relationships from childhood through adulthood, people develop attachment orientations. These attachment orientations also promote different ways of perceiving and regulating stress, which in turn affect healthrelated physiological patterns. Overreacting to and poorly recovering from relationship stressors-a tendency observed in insecurely attached individuals-can exhaust physiological systems and eventually produce health problems. Couples consisting of an anxious wife and an avoidant husband showed increased cortisol reactivity in anticipation of a discussion of relationship conflict followed by a sharp decline before the discussion began (Beck, Pietromonaco, DeBuse, Powers, & Sayer, 2013). This pattern was accompanied by less constructive behaviors during the conflict and was distinct from patterns observed in other attachment pairings. These findings, together with other recent work (see Pietromonaco & Powers, 2015), underscore the importance of the situational context. Attachment insecurity (anxiety, avoidance, or both) is associated with cardiovascular risk factors. Attachment avoidance predicts elevated cardiovascular reactivity in the face of 340 Fiona Ge, Jana Lembke, and Paula R. While this area of research is just developing, immune functioning seems to be impaired by attachment insecurity. Other work suggests that the link between attachment and immune functioning is moderated by gender. It is possible that some markers of immune functioning vary with one type of attachment insecurity but not the other or that other moderating variables are involved. Research building on these initial findings will yield a better understanding of the link between attachment insecurity and immune system dysregulation. Attachment and Health Behavior Attachment insecurity is linked to a variety of healthcompromising behaviors, such as riskier sexual behavior, greater substance use, lower levels of exercise and higher rates of smoking, less participation in preventative healthcare, and poorer relationships with physicians. Factors such as selfesteem and communication styles may partly explain the link between attachment and health behavior (see Pietromonaco et al. For example, securely attached university students held higher selfesteem than those who were insecurely attached, which in turn predicted their greater engagement in health behavior. Relatedly, individuals who were anxiously attached and who perceived lower social support showed greater severity of inflammatory bowel disease severity. Physiological Correlates of Conflict Research on relationship conflict and endocrine responses has focused on the stress hormone cortisol. Greater positive behaviors during a conflict have been associated with increased cortisol levels, while spouses who displayed mainly negative behaviors showed no change in cortisol levels during the conflict, a nonresponsive pattern that is often linked to poorer outcomes. Another potentially problematic response pattern is heightened cortisol reactivity, which has been found among men who coped with stress by seeking support, women who received less spousal support, and men and women whose partners had greater need for social support. Negative relationship interactions evoke greater cardiovascular reactivity, such as blood pressure, heart rate, and cardiac output. Other studies examining support provisions during conflict interactions found that low spousal support adversely impacts blood pressure (Heffner et al. Engaging in marital conflict has been associated with dysregulation of the immune system, which has negative implications for health such as impaired wound healing (Robles et al. Conflicts characterized by hostile and negative behaviors are especially likely to elicit poorer immune responses. Social cognitive factors, such as the extent to which people think about their feelings and the circumstances during a conflict discussion, have been associated with immune responses such that highlevel cognitive processing seems to buffer against inflammation in the face of stressful events (Graham et al. Positive Relationship Interactions Endocrine Pathway Positive relationship interactions-such as showing physical affection or support-are important for health, likely because they reduce stress and protect against cortisol increases. Daily displays of intimacy are one way that relationship interactions confer health benefits. In one study, dualcareer couples reported time spent on intimacy and provided multiple daily saliva 342 Fiona Ge, Jana Lembke, and Paula R. Greater amounts of intimacy on a given day appeared to increase positive affect, which in turn reduced cortisol, suggesting that positive affect generated by intimacy aids in stress reduction (Ditzen, Hoppmann, & Klumb, 2008). Cardiovascular Pathway Simply being in a loving, lowconflict relationship supports physiological patterns necessary for good cardiovascular health for both men and women. For instance, the extent to which partners viewed their romantic relationships as positive, important, and secure predicts life satisfaction and reductions in nighttime blood pressure, especially for women. In a sample of 250 healthy older adults, frequent spousal interaction reduced progression of carotid artery thickening for men in welladjusted marriages (Janicki, Kamarck, Shiffman, SuttonTyrrell, & Gwaltney, 2005). This finding suggests that providing useful advice or helping with problem solving protects against blood pressure increases that are associated with cardiovascular risk. Other work suggests that it is not the type of support received during a conflict, but whether partners were happy with the support that is associated with blood pressure and cortisol reactivity (Heffner et al. A history of frequent physical contact between partners has been associated with higher oxytocin production and lower cardiovascular reactivity. Experimentally induced touch has a similar effect: cohabiting couples who engaged in handholding followed by a 20s hug showed attenuated blood pressure and heart rate reactivity in response to a public speaking task compared with those in a notouch control group (Grewen, Anderson, Girdler, & Light, 2003). Also, evidence suggests that positive physical contact (but not verbal support) can buffer against physiological responding to a stressor. Physical contact between partners can even be used as intervention to improve health. Compared with a notreatment control group, couples participating in a 4weeklong "warm touch" intimacybuilding intervention showed enhanced oxytocin, lower stress hormones, and, among husbands, lower systolic blood pressure (HoltLunstad, Birmingham, & Light, 2008). Clearly, warm and affectionate relationships contribute to lower sympathetic nervous system reactivity to acute stressors, a correlate of good cardiovascular health. Immune Pathway Provisions of support confer benefits for physical health via inflammatory responses over and above individual differences. Neurochemical activity related to positive relationship functioning aids in wound healing: compared with individuals who showed lower levels of oxytocin, individuals exhibiting the highest levels. Greater oxytocin and vasopressin also were associated with more positive communication behaviors and fewer negative behaviors during a social support marital interaction. Thus, supportive marital interactions may promote greater oxytocin and vasopressin response, which counteract stress and aid in wound healing. Recommendations for Future Research and Conclusion More work is needed to determine the conditions under which physiological reactivity to momentary relationship stressors translates to observable, longterm effects on health. For example, attachment is associated with subtle biological stress response patterns that likely translate to concrete health outcomes over time, but limited work has directly tested this link. Because serious health problems such as cancer and arteriosclerosis can take years to develop, it will be important to examine the connection between relationship processes and health over time. Additional work is needed on clinical samples such as couples in which one partner has a chronic illness. Recent research by Manne, Siegel, Kashy, and Heckman (2014) illustrated the potential for conducting basic psychological research with applications for medical practice: in a study of 254 women with breast cancer and their husbands, how couples viewed the cancer. Medical treatments for chronic illness that include a relationship component hold promise: A metaanalysis found that patients receiving a coupleoriented intervention showed greater improvements in their depressive symptoms, marital functioning, and pain than when only usual medical care was prescribed (Martire, Schulz, Helgeson, Small, & Saghafi, 2010). This research points to relationship interventions as potential nonpharmacological medical treatments. Indeed, research at the nexus of health psychology and relationship science has the promise to be translated to medical practice and lay a groundwork for developing new, low risk methods of improving physical health. Author Biographies Fiona Ge is a PhD student in social psychology at the University of Massachusetts Amherst. She is also interested in examining how communication patterns among romantic couples vary by culture. Jana Lembke is a social psychology graduate student at the University of Massachusetts Amherst. Her research focuses on the role of positive partner interactions in relationship well being. She is currently examining how couples reconnect with each other following instances of relationship conflict and how these types of interactions may contribute to relationship satisfaction. Pietromonaco is a professor in the Department of Psychological and Brain Sciences at the University of Massachusetts Amherst.

Experimental data showed that surgical masks and well-fitted homemade masks with multiple layers of quilting fabric were most effective in preventing droplet and even aerosol dispersal after a cough or loud singing impotence essential oils purchase malegra dxt plus 160 mg without prescription. Antibodies to the receptor-binding domain of S protein are the most specific and are expected to be a neutralizing antibody erectile dysfunction treatment after prostate surgery order 160 mg malegra dxt plus with amex. IgM and IgG antibodies are usually not detected until the second or third week of illness erectile dysfunction treatment with viagra discount malegra dxt plus 160 mg buy line, and conversion for most patients occurs by the third to fourth week injections for erectile dysfunction video malegra dxt plus 160 mg buy with mastercard. After that IgM antibodies begin to decline top 10 causes erectile dysfunction buy malegra dxt plus 160 mg lowest price, usually disappearing by week 7, whereas IgG antibodies persist. The specificity of antibody testing may be compromised by immune responses to other coronaviruses that cause common respiratory illness. Although many serodiagnostic tests have been developed by different manufacturers, most have not undergone appropriate external validation. Therefore, the persistence of the antibody response and whether neutralizing antibodies protect and for how long are unknown at this point. Numerous studies have suggested that a significant percentage of infected people remain asymptomatic. Of the positive patients, 24 (19%) were symptomatic, 8 (6%) required evacuation, and 1 patient died. Similar data were obtained from analysis of asymptomatic infected patients in a well-publicized outbreak on a cruise ship named Diamond Princess. In another remarkable report in September 2020, point prevalence surveys in 33 nursing homes across Connecticut were done on 2117 residents. Sixty-two of 530 developed symptoms within 14 days of testing, and thus 468 of 601(78%) patients with positive tests remained asymptomatic. A narrative review published in the Annals of Internal Medicine concluded that the asymptomatic rate may be as high as 40% to 45%, and a conservative estimate may be closer to 30%. Similar to most clinical aspects of the infection, these numbers depend on the age and comorbidities of the population. Overall, the data are preliminary; however, since reports have been retrospective, presymptomatic or minimally symptomatic disease may have been underestimated, and patient selection was not random. Initial studies from China indicate that of the symptomatic patients, 81% had mild symptoms, 14% had severe manifestations, and 5% were critically ill. For symptomatic patients early in the disease, upper respiratory tract symptoms including rhinorrhea and nasal congestion are frequent. Initial symptoms noted in hospitalized patients are fever (initially 50% but up to 90% later), dry cough (60% to 86%) and dyspnea (53% to 80%). Some patients initially have gastrointestinal symptoms including nausea and vomiting and/ or diarrhea (15% to 39%). False-negative results may occur due to improper specimen collection or due to collection too long before or after the onset of symptoms. One important point to remember for any test is that accuracy depends on both the pretest probability, taking into account the symptomatology, history, and local infection rates of a patient, as well as the sensitivity and specificity of a test. Potential advantages of these methodologies include reduced time for results, reduced resources necessary for the test, use of saliva rather than nasopharyngeal or nasal specimens, and more accuracy. Liver function abnormalities including bilirubin have been associated with disease severity. Abnormal liver studies may also be related to drugs, particularly certain antiviral medications, as well as severe disease-causing cytokine release and with vascular compromise. Neurologic manifestations are common in hospitalized patients, including headache, dizziness, and anosmia. Acute vascular stroke, encephalopathy, and encephalitis occur in up to 8% of severely ill patients. The extent of direct viral tropism for the central nervous system has yet to be fully defined. Patients with undiagnosed diabetes mellitus often present with hyperglycemia alone or ketoacidosis. Patients who have preexisting diabetes mellitus or obesity are at greater risk for severe disease. Risk factors include age greater than 50 and three or more chronic medical conditions. In one study of hospitalized patients from the United Kingdom who had been discharged at least 2 to 3 months previously, 74% reported at least one symptom, including dyspnea, fatigue, and insomnia. Some patients who had had more severe disease continued to have abnormal pulmonary function tests. Peripheral pulse oxygen levels are used to determine the degree of pulmonary involvement and the need for hospitalization. One phenomenon noted with some patients is lack of dyspnea despite low peripheral oxygen levels (<90). The entire topic of respiratory support has undergone re-evaluation and change and remains controversial. Cough is usually nonproductive; the occurrence of productive cough, worsening respiratory function, and signs of localized pulmonary infection may indicate the onset of bacterial or in some cases fungal superinfection. Laboratory investigations show blood lymphopenia and elevated erythrocyte sedimentation rate, C-reactive protein, D-dimer, lactate dehydrogenase, and ferritin. Myocarditis, cardiomyopathy, and acute coronary syndrome with cardiac injury as detected by elevated troponin levels have been reported in as high as 20% to 30% of hospitalized patients, particularly critically ill patients. Cardiac injury may occur by direct infection of cardiac myocytes by the virus or by the inflammatory response, which can cause thrombosis and endothelialitis. Cardiac arrhythmias including new-onset atrial fibrillation and heart block have been reported in up to 17% of hospitalized patients. Congestive heart failure, especially with preserved ejection fraction and right ventricular dilation, occurs frequently in critically ill patients, complicating the interpretation of chest radiographs. Careful fluid management and use of scarce dialysis resources are particularly important. The major risk factors for acquisition of symptomatic disease, hospitalization, and mortality are advanced age, frailty, and residing in a nursing home or congregate living facility. In some series more than 90% of deaths occur in patients over the age of 65, particularly those who are frail and those living in nursing homes or the equivalent. In addition to age, frailty, and nursing home residence, the most common risk factors for severity and hospitalization are diabetes mellitus and obesity, cardiovascular disease (including hypertension), and chronic lung disease. Very weak data have suggested an increased risk for patients with type A blood type although this is controversial. There are multiple causes for this discrepancy including (1) workplace exposure; (2) use of public transportation; (3) poor and crowded housing; (4) underlying diabetes mellitus, obesity, and asthma; (5) congregate living settings; (6) delayed health care and lack of access to health care; and (7) distrust of the health care system. Addressing these issues is a critical priority for the equal care of all patients and for controlling the epidemic. For hospitalized patients the primary therapy is respiratory, consisting of conventional supplemental oxygen support. Heated, humidified, high-flow nasal canula oxygen treatment or other oxygen supplementation may be necessary if standard oxygen is inadequate. If invasive ventilation is necessary, low tidal volumes and low plateau pressure are recommended. A number of drugs in different classes are in clinical trial at this point but few at this time have been shown to be effective. Compared to control patients, a significant decrease in mortality was noted in patients on mechanical ventilation (41% vs. Those without oxygen requirement had no benefit, but even in this situation there could be a subgroup that would benefit, and further studies are ongoing. Antiviral drugs including remdesivir, hydroxychloroquine, azithromycin, and lopinavir are being studied but none have shown a reduction in mortality. A systemic review in August 2020 concluded that the evidence on the benefits and harms of this drug is very weak and conflicting. Future studies should clarify what if any drugs have a significant effect on morbidity and mortality. It is recommended that all hospitalized patients receive subcutaneous low-molecular-weight heparin to prevent thrombotic complications. Of concern, however, are women with increased risk factors in the United States, such as glucose intolerance, diabetes mellitus, obesity, hypertension, and minority status. Subsequent data indicate that a percentage of pediatric patients are asymptomatic. Symptomatic patients have fever and cough; a lower percentage have typical viral respiratory symptoms including nasal congestion, myalgia, fatigue, and sore throat. It occurs in previously healthy children who are older than 5 years of age, including adolescents, compared to patients with Kawasaki disease who are usually younger than 5 years. A relatively high percentage (10% to 20%) have evidence of cardiovascular involvement and coronary artery aneurysms. Further data on the epidemiology, clinical characteristics, and treatment of this rare condition are needed. Standard therapy for cardiac, renal, endocrinologic, hematologic, and neurologic complications is detailed in subspecialty guidelines. The traditional process includes: discovery (2 to 5 years); preclinical including animal studies (2 years); clinical (phase 1: 2 years involving 10 to 50 people, phase 2: 2 to 3 years involving hundreds of people, and phase 3: protection studies involving thousands of subjects taking years); regulatory phase of 2 years; and manufacturing and delivery, which takes 1 to 2 years. Vaccines have in general targeted the spike protein, but it is not clear what site on the molecule will be the most effective target. At this writing at least eight potential vaccines are in phase 3 trials in various countries around the world. Will the vaccine produce lasting immunity in all populations including those most at risk such as the elderly Vaccines produced for other coronaviruses have shown lung toxicity, and therefore toxicity must be investigated first in animal models. Will manufacturing capacity and clinical capacity be adequate and will distribution of the vaccine be equitable and target the most vulnerable populations It is important to recognize that vaccines for respiratory illnesses such as influenza are only 40% to 80% effective at most. Information about vaccines and their effectiveness and safety will be forthcoming rapidly in the next several years. It was clear from the experience in Wuhan that draconian governmental action including preventing travel in and out of Wuhan, strict quarantine, wearing face masks, shutting down public transportation and public gatherings, closing businesses, and increasing medical care capacity halted the epidemic over several months. Less stringent measures have been instituted in Europe, the United States, and other parts of the world, although there has been wide variation in the extent of restrictions. Contact tracing has been practiced effectively in some countries such as South Korea, but lack of adequate testing and the high percentage of asymptomatic patients has made that impractical in many settings. Many countries have seen a marked reduction in cases due to initial public health measures and have begun loosening restrictions with a resultant increase in the number of cases. It is possible, however, that the infection will spread to vulnerable populations, resulting in additional waves of the pandemic that need to be addressed and controlled. Mitigation efforts do not eliminate the virus and until herd immunity is widespread (presumably higher than 40%) and effective vaccines are available, viral transmission and infection will continue. The downside of public health restrictions has included major negative effects on people. There has been an increase in stress, mental health issues such as depression and anxiety, and unfortunately increases in drug use including alcohol. In one survey, frequency of alcohol use increased 14% overall in 2020 compared to 2019 and affected women more than men. Care for conditions such as acute infection, acute cardiac disease, and injuries has often not been readily accessible in many locations and as a result mortality has increased for some of these conditions. Routine care including elective surgery, vaccinations, and regular medical visits have been put on hold. Economic disruption with unprecedented economic contraction, massive worldwide unemployment, supply chain disruption, business failures, and food insecurity has wreaked havoc on all countries but has disproportionally affected the poorest and most vulnerable populations. One estimate of the total cost for the United States is $16 trillion resulting from economic disruption and medical costs. School closings and reopenings have been an extremely important issue that continues to be debated, 1173 but the downside of school closings has been enormous, particularly for children in minority populations. The balance between restrictions for the pandemic and opening society will be an ongoing issue for the foreseeable future. HeapsWoodruff and David Von Nordheim Missouri Department of Mental Health, University of Missouri­St. Arranged in a flat disk with three layers, the cells that comprise the topmost layer, the ectoderm, forms the neural plate and provides the foundation of the developing nervous system. Within 22­25 days after conception, the cells of this plate fold into a groove that forms the neural tube, the precursor to the brain and spinal cord. Subsequent development leverages a pool of undifferentiated cells that lack functional specificity until the cells migrate to predetermined regions. This process is guided by progenitor cells that release attraction molecules to guide the formation of new synapses. Beyond the first year of life, brain cells undergo ongoing refinement of existing connections (Institute of Medicine and National Academy of Sciences, 1992) and programmed cell death to eliminate connections that are not regularly activated. Gray matter volumes increase exponentially during infancy until about 18 months after birth, when the rate continues to increase, albeit more slowly, until the late 20s. Peak gray matter volume is generally achieved in the third decade followed by progressive reductions in volume thereafter. By contrast, the volume of white matter increases into the fourth decade followed by progressive decline. Given the difference in developmental maturation of the gray and white matter, total brain volume is a poor index of brain integrity, especially during the third and fourth decade. The brain accounts for 2­3% of total body mass while consuming 20% of total glucose needs. Glucose needs remain high until adolescence, with peak levels accounting for almost half of the total energy needs of the body (Goyal & Raichle, 2018). These data underscore the high resource demands of the developing brain in children and adolescents (Kuzawa et al.

Counterfactuals can identify alternatives that are either better than reality (upward counterfactuals) or worse than reality (downward counterfactuals) impotence definition order malegra dxt plus pills in toronto. Upward counterfactuals are gener ally related to selfimprovement motivations (Roese erectile dysfunction is often associated with quizlet cheap malegra dxt plus 160 mg buy, 1997) otc erectile dysfunction pills walgreens malegra dxt plus 160 mg for sale, as they identify ways that an outcome might have been improved and thus suggest strategies to improve future outcomes erectile dysfunction ear buy discount malegra dxt plus on line. Upward counterfactuals facilitate the generation of intentions (Roese erectile dysfunction caused by herpes malegra dxt plus 160 mg purchase with visa, 1994; Smallman & Roese, 2009) but are associated with negative affect and underpin the emo tional experience of regret (Gilovich & Medvec, 1995). In contrast, downward counterfactuals are related to selfenhancement motivations and generally improve affect (Roese, 1997). In these cases, individuals may focus more on similarities rather than differences between reality and the imagined alternative (Markman & McMullen, 2003). The team that is losing by one point at halftime, the student who almost gets an A on the first quiz, and the dieter who is almost at his goal weight may all feel hopeful and motivated rather than dejected if they perceive the Wiley Encyclopedia of Health Psychology: Volume 2: the Social Bases of Health Behavior, First Edition. Walker, and Brittney Becker ongoing opportunity to reach these goals, whereas the team with a narrow lead or the driver who narrowly missed an accident may feel apprehensive rather than overjoyed if they perceive continued threat. Two broad factors increase the likelihood of counterfactual generation: the valence (positive or negative) of an outcome and the ease of simulating alternatives. Counterfactuals are more likely following negative events, failure, or unmet goals (Roese, 1997). In general, counterfac tuals are most likely to be generated when an alternative is easy to imagine and would clearly have led to another outcome (Kahneman & Miller, 1986). Finally, events that more nearly occurred are more likely to prompt counterfactuals: a student who got an 89% is more likely to generate counterfactuals about the exam than a student who got an 87%, because the former grade is closer to having been an A (Roese, 1997). Given their strong links to emotional experience and decision making, counterfactuals play a broad and varied role in health. At times, counterfactuals can have deleterious effects: upward counterfactuals and the related emotion of regret are associated with various negative mental health outcomes, including depression, anxiety, and problems coping with traumatic events. Additionally, although counterfactual thought is a common and important cognitive process in healthy populations, particular health conditions are associated with deficits in counterfac tual thought. Counterfactuals can also have mental health benefits, including promoting a sense of meaning in life. Furthermore, because of their important role in causal reasoning and future planning, counterfactuals can benefit health decisions, changing behavior by either strengthening behavioral intentions or increasing motivation and persistence. Mental Health and WellBeing Both excess and deficient counterfactual thought are associated with a broad range of negative outcomes. Mental disorders that are characterized by emotional distress or challenges in cop ing generally involve excessive or extreme responses to upward counterfactuals. However, both upward and downward counter factuals can facilitate coping and enhance wellbeing. Excessive Counterfactual Thought Thoughts of "what might have been" are associated with emotional distress, even among healthy populations. Depression and anxiety are particularly associated with increased counter factual generation. Although depressed and nondepressed individuals generate the same num ber of counterfactuals when given explicit instructions, Quelhas and colleagues found that depressed individuals generate more counterfactuals spontaneously, that is, when asked to describe their thoughts without specific instructions to think about "what might have been. The relationships between Counterfactual Thought 73 counterfactuals, anxiety, and depression are not due simply to the presence of ruminative thinking in depression. In a nationally representative phone survey conducted in 2009, Roese and colleagues found that high levels of regret predicted depression and anxiety better than excessive rumination and the interaction between regret and repetitive thoughts was highly predictive of general distress (Roese et al. Other research has focused on the role of chronic deficits in personal control in counterfac tual thought. In the 1990s, Markman and colleagues found that perceived control mediated the association between depression and increased generation of controllable counterfactuals. Thus, these authors suggest that increased counterfactual generation is a response to greater chronic motivations for control among depressed participants. In addition to the greater prevalence of counterfactual thought, depression is also associated with more negative responses to upward counterfactuals. For example, severely depressed participants generate counterfactuals that are less controllable and less reasonable, compared with mildly or moderately depressed participants. These less reasonable and controllable coun terfactuals are less useful for managing ongoing behavior. Thus, although counterfactual thoughts can be functional, people with depression may generate less functional or potentially dysfunctional counterfactual thoughts. Beyond its connections to depression and anxiety, excessive counterfactual thought directly contributes to insomnia. This effect emerges even when individuals are randomly assigned to generate counterfactuals, suggesting a causal effect of these thoughts on insomnia, and when control ling for rumination and anxiety in correlational studies. In short, excess counterfactual thought, particularly when not tailored to improving future outcomes, is associated with a range of emotional disturbances. Counterfactuals and Coping Just as increased upward counterfactuals are associated with emotional dysfunction and dysregulation, they also are associated with impaired coping with traumatic events. Given that counterfactuals are elicited by negative events (Roese, 1997) and have emotional conse quences, counterfactual thoughts are particularly important in contexts of trauma. Pre occupation with alternative outcomes (counterfactual thinking) is a central component of the ruminations of trauma victims. One particularly influential aspect of counterfactuals is the tendency for trauma survivors to generate counterfactuals focused on how their own actions might have allowed them to avoid the event, fostering selfblame. Research by Branscombe and colleagues found that generating counterfactuals focused on how a victim of sexual assault might have avoided the incident increases victim blaming both by observers and victims. Among rape victims, those who gener ated more selffocused upward counterfactuals had lower wellbeing. Importantly, this rela tionship was mediated by selfblame: counterfactuals increased selfblame but not blame for the rapist or social factors, which led to deficits in coping. However, even in contexts in which selfblame is not focal, trauma is associated with increased upward counterfactual thought. Walker, and Brittney Becker However, downward counterfactuals are more likely when individuals have a goal of regulating and improving affect following distressing events (Roese, 1997). Furthermore, downward counterfactuals may facilitate coping and psychological wellbeing by helping indi viduals to feel better about an outcome or by increasing meaning in life. In some cases, therefore, counterfactuals offer emotional benefits, particularly in the case of downward counterfactuals. Deficits in Counterfactual Thought Although excessive upward counterfactual thought is associated with emotional difficulties, other disorders show impoverished counterfactual thinking, which can cause difficulties with problemfocused cognition and reduced negative affect following negative outcomes. In the mental health context, counterfactual impairment is best documented in schizophre nia. Research by Roese and colleagues shows that schizophrenia patients are less able to acti vate counterfactual thoughts relative to healthy control participants. When asked to generate counterfactual thoughts about a recent negative experience, schizophrenia patients described fewer counterfactuals compared with control participants. Importantly, diminished counterfactual thinking partially mediated the impaired social functioning experi enced by the schizophrenia patients, thus highlighting the role that counterfactual thinking plays in regulating behavior and successfully negotiating the psychosocial world. Furthermore, even when individuals with schizophrenia were provided with counterfactual thoughts, these counterfactuals did not strengthen relevant behavioral intentions. In contrast, schizophrenia patients did not show an increase in the likelihood of performing that action in the future. Given that the deficits in counterfactual thinking did not appear to be the result of general cognitive impairment, researchers believe that impaired frontal lobe activity in particular may explain diminished counterfactual thinking in schizophrenia patients. Again, diminished counterfactual thinking significantly correlated with measures of frontal lobe functioning, indicating that an inability to generate counterfac tuals might be related to frontal lobe dysfunction. More broadly, the possibility that counterfactual thinking is processed in the frontal lobe is supported both by neuropsychological theory and research on patients with brain lesions or damage (Camille et al. In general, the frontal lobes are involved in social functioning, decision making, planningrelated Counterfactual Thought 75 cognitions, and the integration of emotion with decision making processes, functions also served by counterfactual thinking. Patients with prefrontal cortex lesions showed impaired spontaneous counterfactual thinking but were capable of cued counterfactual thinking and indirect counterfactual inferences. Thus, it appears that damage to the prefrontal cortex is par ticularly detrimental to selfgenerated counterfactual thoughts (GomezBeldarrain et al. Additional research has focused on the orbitofrontal cortex and its role in counterfactual think ing and the counterfactually induced emotion of regret, with studies showing that lesions in this area are associated with reductions in regret following a gambling task (Camille et al. Accordingly, certain health problems may be associated with impairments in counterfactual thinking and related processes. Given that counterfactual thinking can be helpful in changing behavior, improving future outcomes, and increasing motivation and persistence, additional steps may be needed to elicit these functional aspects of counterfactual thinking that are not typically required in a healthy population. Health Decisions and HealthRelevant Behaviors Counterfactuals can hinder sound judgment, as they can alter evaluations in "irrational" ways. In addition to their emotional and mental health implications, counterfactuals can bias decision making such as blame and responsibility judgments during jury or medical treatment decisions. However, a more recent approach emphasizes the func tional aspect of counterfactual thinking in regulating behavior via monitoring, managing, and coordinating behavior (Epstude & Roese, 2008; Roese, 1994; Roese & Epstude, 2017). Put simply, counterfactuals are most helpful when dealing with the actions one can take to address a problem that might occur again in the future (for a review, see Epstude & Roese, 2008; Roese & Epstude, 2017). First, by providing insight and information about how a negative outcome might have been avoided, counterfac tuals can strengthen intentions to change the behavior, increasing the likelihood of changing future behavior (Roese, 1994; Smallman & Roese, 2009). Second, counterfactuals that elicit negative affect can increase motivation and persistence on a task (Markman, McMullen, & Elizaga, 2008). Counterfactuals and Behavior According to the functional perspective, a primary function of counterfactual thought is prob lem solving. When individuals fail to reach a goal or encounter a problem, counterfactuals highlight behaviors that might correct those problems and facilitate goal achievement. For example, a person with a weightloss goal might go grocery shopping while hungry, resulting in a cart full of junk food. Counterfactual thoughts such as "if only I had eaten before I went shopping" or "if only I had a shopping list" provide behaviors that could help avoid a recur rence of the situation and restart progress toward the weightloss goal. In this way, counter factuals help individuals evaluate a problem and offer new actions that will facilitate future improvement. Walker, and Brittney Becker Originally, counterfactualdriven behavior change focused on academic. For example, after receiving exam grades, students who gener ated upward counterfactuals about their exam performance increased their grades on a subse quent exam (Nasco & Marsh, 1999). Counterfactuals about anagram performance improved subsequent performance due to both the strategic thoughts. A series of studies examined whether counterfactual thinking could be an effective antismoking strategy (Page & Colby, 2003). In these studies, participants read a negative smoking scenario (describing a smoking induced abnormal lung growth) then generated counterfactuals and rated affective responses about the scenario and indicated their willingness to participate in a smokingrelated behavio ral test (a lung capacity test) either immediately or after a 2 or 7day delay. Although upward counterfactuals did not increase their willingness to sign up for the lung capacity test, additive counterfactuals did. Importantly, this increase occurred both immediately and after a 2 or 7 day delay, although the effect weakened over time. Although this finding differs from findings that upward counterfactuals increase behavior change, it supports the second tenet of the functional theory of counterfactual thinking, which predicts that additive counterfactuals should also increase behavior change. Although so far we have focused on positive behavioral change, counterfactuals may also increase the likelihood of engaging in negative behaviors. Recently, Effron and colleagues have shown that counterfactuals that focus on the "sinful road not taken" can provide justi fication for unhealthy food choices. Additionally, since counterfactuals increase goal pursuit, there is no guarantee that they will increase behaviors related only to healthy goals; instead, they might help one pursue hedonic goals and increase the likelihood of enacting relevant unhealthy behaviors. Finally, even for healthy or adaptive goals, counterfactuals may help individuals identify unhealthy behaviors to achieve that goal. For instance, an individual with a healthy weightloss goal might adopt a starvation "cleanse" diet, or a student hoping to improve class performance might abuse stimulants. The first involves strengthening relevant behavioral intentions, which in turn increases the likelihood of performing the desired behavior in the future. Counterfactuals and Intentions Oneway behavior change might occur is by strengthening intentions that are directly related to the behavioral outcome. That is, after a negative outcome (getting a particularly bad sunburn), a counterfactual thought ("if only I had worn sunscreen") might provide insight Counterfactual Thought 77 regarding the usefulness of a particular action (wearing sunscreen), which prompts the relevant behavioral intention ("in the future I will wear sunscreen"), and consequently influences per formance of that particular behavior (wearing sunscreen). Upward counterfactuals strengthen relevant behavioral intentions in a variety of contexts. Students who generated upward counterfactuals about a recent negative academic perfor mance. Similarly, pilots who generated upward and selffocused counterfactuals about their own nearaccident flying incident had stronger intentions to perform behaviors that would have helped them avoid the incident (Morris & Moore, 2000). However, it is important to note that not all counter factuals are equally likely to strengthen relevant intentions. In particular, counterfactuals that are more detailed or include specific behaviors are more likely to strengthen intentions com pared with counterfactuals that are more general or include traits. For example, after getting into a drunkdriving accident, the counterfactual "if only I had called a cab" is more likely to strengthen intentions compared with the counterfactual "if only I had acted more responsibly. Yet these counterfactuals also identified potential safesex behaviors, strengthening their safesex intentions for the future. This finding is particularly interesting because it focuses on an irreversible event. Typically, coun terfactuals are most functional in the context of repeatable events, which allow for the appli cation of the counterfactually driven insight to a future situation. These findings broaden that perspective, such that individuals might learn from nonrepeatable events, as long as a future situation arises where the application of that knowledge is appropriate.

Currently erectile dysfunction medication non prescription order malegra dxt plus canada, the evidence generally suggests that the largest deficits associated with cocaine use are in the areas of attention and executive functioning erectile dysfunction in young guys malegra dxt plus 160 mg buy without prescription, while small effects have been 266 J erectile dysfunction pills supplements buy generic malegra dxt plus 160 mg on line. However erectile dysfunction doctor in pune purchase 160 mg malegra dxt plus with visa, as documented by Woicik and colleagues (2009) erectile dysfunction typical age purchase malegra dxt plus without a prescription, these findings may be more pronounced after a longer period of abstinence from cocaine use. Future studies that evaluate the association of cocaine use and neuropsychological functioning may benefit from also examining cocainedependent individuals who have been abstinent from cocaine use for an extended period of time. Impairments in memory performance have also been reported; however, these impairments appear to return to baseline levels after intoxication (Kuypers & Ramaekers, 2005). Verbaten (2003) examined only studies with betweengroup designs between 1975 and 2002. Kalechstein, De La Garza, Mahoney, Fantegrossi, and Newton (2007) conducted a similar metaanalysis of studies conducted until 2004, with lenient inclusion criteria. Liberal criteria for Psychosocial: Substance Abuse-Street Drugs 267 inclusion in the metaanalysis were applied. Although notable, the small sample sizes among some studies limit the generalizability of these findings. A larger sample size may reveal small or moderate changes in cognitive domains other than visual memory and learning. Additionally, metaanalyses suggest cognitive decline in several domains, though these findings are divergent among prospective studies. Methamphetamine can be consumed in a variety of ways, including snorting, smoking, and injection. Methamphetamine stimulates the release of dopamine while simultaneously blocking, to some extent, synaptic reuptake of dopamine, both of which result in increased levels of dopamine in reward regions of the brain. The acute effects of methamphetamine may include autonomic arousal, tachycardia, suppression of appetite, euphoria, feelings of increased physical and mental capacity, elevated selfesteem, increased libido, insomnia, and irritability. Administration of moderate doses of methamphetamine can lead to enhanced attention and concentration (Johnson et al. Longterm use induces neurotoxicity in several neurotransmitter systems, particularly the nigrostriatal dopaminergic pathways, thus altering the function of prefrontal­striatal circuits. A metaanalysis, which included 18 studies and a total of 487 participants with lifetime methamphetamine abuse/dependence and 464 healthy controls, revealed that chronic 268 J. These effect sizes were broadly in the medium range, such that methamphetamine users performed worse than controls in measures of attention/working memory, visuoconstruction, and language (Scott et al. Neuroimaging studies have found a range of structural and metabolic abnormalities in the brains of chronic methamphetamine abusers. Structurally, methamphetamine abusers showed enlarged striatal volumes, suggesting an initial compensatory (inflammatory) response (Chang, Alicata, Ernst, & Volkow, 2007). However, a study found that greater usage ultimately led to a decrease in striatal volume, associated with greater cognitive impairment (Chang et al. Smaller hippocampal volumes have also been linked to poorer episodic memory performance among chronic users (Thompson et al. These findings suggest a failure to adapt a behavioral response based on prior experience, which is a hallmark behavior of addiction (Salo et al. Hypoactivity of frontal and other areas in methamphetamine users has also been linked to deficits in socioemotional processing (Payer et al. Together, these findings suggest that longterm methamphetamine abuse leads to learning and memory impairments, as well as executive dysfunction. Neuroimaging findings suggest that these deficits are linked to abnormalities in prefrontal­striatal circuits, most notably abnormalities in gray matter volumes of subcortical structures and hypoactivity of frontal areas. Further research is needed to determine whether these impairments will improve with prolonged abstinence. Opiates Opiate is extracted from the seeds of the opium poppy plant, with majority of the illegal opiates being grown in Afghanistan. Prescription opioid addiction, such as Vicodin Psychosocial: Substance Abuse-Street Drugs 269 and Oxycontin, has become a national crisis in the United States due to the increases in opioid abuse and overdose deaths. The number of deaths related to opioid abuse has almost tripled since 2010 (Hedegaard, Chen, & Warner, 2015). Neuroimaging studies have documented detrimental effects of opiate use on brain structure and function. Specifically, decreases in gray matter density have been observed in the prefrontal, anterior cingulate, insular, and temporal cortices among opiate abusers compared with healthy controls (Lyoo et al. Gruber, Silveri, and YurgelunTodd (2007) reviewed the neuropsychological consequences of opiate use. Results suggest that neuropsychological deficits exist both acutely and residually in measures of attention, concentration, recall, visuospatial, and psychomotor speed. A recent metaanalysis on the neuropsychological effects of opiate use revealed that the most robust impairments were in measures of verbal working memory, risktaking. This review analyzed 20 studies with 767 chronic opioid users and 15,196 healthy controls compared on 7 neuropsychological domains: shortterm verbal working memory, shortterm visuospatial working memory, longterm memory, attention, cognitive impulsivity, nonplanning impulsivity, and cognitive flexibility (Baldacchino, Balfour, Passetti, Humphris, & Matthews, 2012). These findings overwhelmingly suggest that there are neuropsychological impairments associated with opioid dependence. These cognitive impairments include verbal working memory, risktaking, and verbal fluency. Discussion Substance use is associated with numerous negative outcomes, including social, emotional, and economic consequences that make it a significant public health problem. The use of neuropsychological tools in the context of substance use disorders has helped us to gain a better understanding of how critical cognitive processes are affected by substances of abuse, acutely and in the longer term. This article presents a complex picture of consequences from use of various substances. The heterogeneity in findings is likely due to a variety of issues, including each drugs own unique pharmacological properties as well as the characteristics of participant samples. For example, did the study include individuals recently out of recovery, a community sample of users, individuals that used a certain amount of a drug, or individuals that met criteria for a substance use disorder Indeed, our review suggests that substance abuse is generally associated with neuropsychological deficits. However, as noted, these deficits vary across substances, neurocognitive domains, pattern, severity, and duration. Collectively, in most cases, more severe, frequent, and symptomatic substance use. Whereas abstinence from some substances may result in normalization of neurocognitive functioning over time. Another important issue to consider, which often looms in the background and has received progressively more attention in recent years, is whether any of the neurocognitive deficits observed among substance users may have predated use; rather than a consequence of use, they may serve as a risk factor for addiction. From a theoretical standpoint, measures of inhibitory control, decision making, and other aspects of executive functioning are plausible candidates for neurocognitive deficits that may predate heavy use. However, without prospective longitudinal studies that adequately assess neurocognitive functioning before and after initiation of substance use, this issue cannot be adequately resolved. Although such studies have been conducted by several research groups or among specific cohorts. Substance use characteristics will also be carefully assessed in this project to provide a clearer picture of how the brain looks and functions prior to and after initiation of substance use and how it continues to change among those that use relative to those that do not. In the process, the results of this project will address many of these lingering issues. Despite dramatic advances in the scientific study of the neuropsychology of substance use, there are plenty of areas in which future studies could help elucidate discrepant findings and further our understanding of substance use disorders. As noted, prospective longitudinal studies with large sample sizes will continue to move the field forward. Similarly, more sophisticated metaanalyses that carefully consider how heterogeneity of samples and specific substance use characteristics influence findings will be valuable to the scientific literature. Megan Ross graduated from Florida International University with a doctorate in clinical psychology. She is currently a postdoctoral fellow at the Institute for Behavioral Genetics at the University of Colorado, Boulder. Her research focuses on predictors and moderators of risktaking behavior among adolescents. She is currently a graduate student pursuing a PhD in Clinical Psychology at Florida International Psychosocial: Substance Abuse-Street Drugs 271 University, where her research focuses on the effects of adolescent cannabis use on neuropsychological functioning and motivation. He graduated with his PhD in Clinical Psychology from the San Diego State University/University of California, San Diego Joint Doctoral Program in Clinical Psychology, with a specialization in clinical neuropsychology. His research broadly examines risks for and consequences of substance use, with a focus on cannabis. Neuropsychological consequences of chronic opioid use: A quantitative review and metaanalysis. Persistence of cognitive effects after withdrawal from longterm benzodiazepine use: A meta analysis. Structural and functional imaging studies in chronic cannabis users: A systematic review of adolescent and adult findings. Structural and metabolic brain changes in the striatum associated with methamphetamine abuse. Enlarged striatum in abstinent methamphetamine abusers: A possible compensatory response. Neuropsychological sex differences associated with age of initiated use among young adult cannabis users. Metaanalysis of structural brain abnormalities associated with stimulant drug dependence and neuroimaging of addiction vulnerability and resilience. Acute effects of cocaine in two models of inhibitory control: Implications of nonlinear dose effects. Cannabinoid receptors in the human brain: A detailed anatomical and quantitative autoradiographic study in the fetal, neonatal and adult human brain. Benzodiazepine use and risk of incident dementia or cognitive decline: Prospective population based study. Associations between benzodiazepine use and neuropsychological test scores in older adults. Impact of adolescent marijuana use on intelligence: Results from two longitudinal twin studies. Proceedings of the National Academy of Sciences of the United States of America, 113(5), E500­E508. Effects of acute intravenous cocaine on cardiovascular function, human learning, and performance in cocaine addicts. Effects of isradipine on methamphetamineinduced changes in attentional and perceptualmotor skills of cognition. Persistent cannabis users show neuropsychological decline from childhood to midlife. Proceedings of the National Academy of Sciences of the United States of America, 109(40), E2657­E2664. Decision making by methamphetaminedependent subjects is associated with errorrateindependent decrease in prefrontal and parietal activation. Differences in cortical activity between methamphetaminedependent and healthy individuals performing a facial affect matching task. Residual effects of cannabis use on neurocognitive performance after prolonged abstinence: A metaanalysis. Cerebellar gray matter volume correlates with duration of cocaine use in cocainedependent subjects. Pharmacological content of tablets sold as "ecstasy": Results from an online testing service. Neuropsychological functioning in methadone maintenance patients versus abstinent heroin abusers. Decreased dopamine brain reactivity in marijuana abusers is associated with negative emotionality and addiction severity. Proceedings of the National Academy of Sciences of the United States of America, 111(30), E3149­E3156. A growing body of work suggests that variation in the prenatal environment can produce individual differences and program regulatory systems that subsequently influence developmental organization and outcomes in infancy, childhood, and adulthood. In this work, prenatal stress is often used as an umbrella term for maternal experiences that include physiological and psychological responses to perceived threat or challenge, as well as negative mood states (frustration, anxiety, depression). Although epidemiological, correlational, and quasiexperimental research with human subjects supports this fetal origins hypothesis, confounding variables prevent these studies from providing definitive proof. This area of research underscores the importance of delineating the effects and mechanisms of stress during the prenatal period in order to provide the optimal foundation for child development. Finally, conclusions are discussed in the context of implications for efforts to support the health of pregnant women and their children. Gunnar and Colleen Doyle Prenatal Brain Development Brain development unfolds through a series of complex and dynamic processes involving the interaction of genes and the environment (see Stiles, 2008). Following their transformation, the region of neural progenitor cells is called the neural plate. Through the process of neurulation, ridges rise along the sides of the neural plate, arch together, and fuse. Before closure of the tube, the anterior end expands to form three primary brain vesicles that are precursors of the forebrain, midbrain, and hindbrain. During this time of rapid development, neurogenesis, or neuron production, begins. The smooth structure of the immature brain is transformed as gyral and sulcal folding emerge. These foldings allow the fetal brain to dramatically increase cortical surface area. Through migration, neurons radially form the sixlayered neocortex in an "inside out" fashion, so that deeper layers are populated and mature first, and more superficial layers are populated and mature last. Cajal­Retzius cells control the positioning of neurons by producing a molecule, reelin, that signals neurons to stop migrating.

This group includes diffusion of innovations theory erectile dysfunction protocol book order malegra dxt plus now, social influence or social inoculation model sudden erectile dysfunction causes buy generic malegra dxt plus, social network theory best erectile dysfunction doctor in india 160 mg malegra dxt plus order mastercard, and theory of gender and power (Green impotence smoking 160 mg malegra dxt plus with amex, 2003) xatral erectile dysfunction discount malegra dxt plus 160 mg mastercard. Barriers to taking action: I do not like using condoms, and I cannot afford them anyway. As noted earlier in the example of smoking cessation, the health belief model has also been adapted to include the construct of selfefficacy, the belief that one is capable of carrying out the behavior. Consequently, it is sometimes referred to as the expanded health belief model (Strecher & Rosenstock, 1997). A superstructural factor might be an international tariff that makes imported condoms too expensive for sexually active youth living in countries where condoms are not manufactured locally. Policies that exclude unmarried youth from receiving condoms from public health clinics or addicts of any age from receiving sterile syringes represent a structural barrier. Individual factors beyond health risk and benefit analysis include whether a person is a risk taker or timid by nature and whether the person tends to be a leader or a follower. Predicting Behavior With the Health Belief Model A review of the effectiveness of the health belief model to predict and explain behavior found that perceived severity was a weak predictor of behavior, perceived susceptibility was not a predictor in most studies, and perceived barriers and perceived benefits were consistently the strongest predictors of behavior (Carpenter, 2010). While the health belief model is still widely used to guide intervention design, a recent metaanalysis concluded there is insufficient evidence to attribute the use of the model in health interventions to effectiveness in changing behaviors (Jones, Smith, & Llewellyn, 2014). The authors report that while the studies they reviewed state that they used the health belief model, only 6 of the 18 studies followed the full model, and only 5 measured model constructs before and after the intervention. Increasingly, behavior change interventions do not rely on a single theory or model. Recognizing that behavior is influenced by many factors, behavior change strategies draw on several theories simultaneously. To advance knowledge about effective behavior change strategies, further 214 Edward C. Murphy, and Kristina Gryboski studies should be done to clearly demonstrate how the intervention design is informed by the theories and to measure the theoretical constructs before and after the intervention, as well as the associated changes in behavior. Green, PhD, is a medical anthropologist who served as senior research scientist at the Harvard Center for Population and Development Studies. In retirement, he is currently a research professor at the Department of Anthropology, the George Washington University, and director of the New Paradigm Fund. She has worked for 30 years in the areas of population and reproductive health (family planning). Kristina Gryboski is a medical anthropologist who has worked in global health for over 20 years as a researcher, program manager, technical writer, and trainer in nutrition, maternal and child health, gender, and reproductive health. A metaanalysis of the effectiveness of health belief model variables in predicting behavior. Evaluating the effectiveness of health belief model interventions in improving adherence: A systematic review. Most everyone has some idea what a life story is, yet few in the field of health psychology actively study it. To this we would respond that a consideration of life stories is only necessary if researchers wish to attain a deeper, more thorough, and psychologically rich understanding of the persons they aim to study (Dunlop, 2015). It is also worth noting that there exists a growing literature recognizing the unique predictive ability of aspects of life stories, exhibited in relation to health behaviors and outcomes. Before offering a summary of previous research examining life stories in relation to physical and psychological health, it is necessary to provide a more thorough discussion of what exactly a life story is and what it is not. Following this summary, we will provide an overview of previous research that has considered aspects of life stories in relation to healthrelated outcomes. Although we do not anticipate that this entry will convert each and every reader into a life story "believer," we do hope that it increases the level of interest among health psychologists in the life story. Just when people feel as though they finally have a handle on all of their various tasks, responsibilities, roles, and requirements, something changes. Indeed, this fact, the fact that lives are constantly in flux, gets to the very heart of the matter: In large part, lives are complicated because they are always morphing. Can people ever claim to be living the same life they were living 5 years or even 5 months ago The nature of modern circumstances, as well as common sense, would seem to dictate otherwise. Yet, despite all the rampant change, people continually lay claim to the fact that they are, numerically speaking, the same person they were in 2005, 1995, and so on (age permitting). This claim of "personal persistence" (Chandler, Lalonde, Sokol, Hallett, & Marcia, 2003) is larger than any one life that falls under its purview. Indeed, the very moral, social, and economic bedrocks of civilization are predicated on the notion that people take ownership of their past and have some invested interest in the manner in which their lives play out in the future (Chandler et al. In the absence of such a temporal thread, "contracts and debts and promises would all fly out the same window, all prospects for a just and moral world would evaporate, and judgment day would simply go out of business" (Chandler et al. The life story represents an important psychological resource because it can be used to justify, to the self and others, a connection between the many different temporal "versions" of the self as well as the varied experiences of which it has been a part-that is, it can be used to create a sense of personal persistence or temporal continuity (Chandler et al. The "active ingredient" in this process is autobiographical reasoning (Habermas & Bluck, 2000). Autobiographical Reasoning: A Primer Readers looking for some reprieve from the nebulous nature of the life story via autobiographical reasoning will be disappointed. Autobiographical reasoning is just as, if not more, complex than the life stories in which it manifests: this form of reasoning actually is not one thing, but four (at least; Habermas & Bluck, 2000). First, a given life story must make "sense" within a particular social and cultural context; it must accord to the cultural concept of biography (Habermas, 2007). Some stories contain sufficient detail regarding when a particular experience occurred, as well as a logical (most frequently temporal) progression between the various events that the narrator deems selfdefining. When these features are present, the story is said to have a high level of temporal coherence. As Habermas and Bluck (2000) observed, narratives have a tendency to espouse certain themes or maxims in the stories they construct. Individuals differ in the degree to which the themes in their stories are consistent and coherent. Narrators differ with respect to the degree to which they associate changes in the self with accumulations of experience. Health Consequences and Correlates of Life Stories 217 Where the Rubber Meets the Road: Measuring Life Stories How do researchers assess life stories Before answering this question, it is important to recognize the distinction between the life story as a psychological construct and the life story as a measurable psychological construct. One intriguing feature of autobiographical stories is that they are, invariably, "created within a specific situation, by particular individuals, for particular audiences, and to fulfill particular goals" (McLean, Pasupathi, & Pals, 2007, p. In this sense, the elements of life stories that are produced in research contexts do not represent a pure "assessment of internal representations but rather. An example prompt is as follows (McAdams, 2008): Please describe a scene, episode, or moment in your life story that stands out as an especially positive experience. This might be the high point scene of your entire life, or else an especially happy, joyous, exciting, or wonderful moment in the story. What happened, when and where, who was involved, and what were you thinking and feeling Also, please say a word or two about why you think this particular moment was so good and what the scene may say about who you are as a person and your life. First, individuals are pushed for a single, definitive event rather than a general period in their lives (see also Baranski, Morse, & Dunlop, 2016). Together, these two elements of prompts (specificity and detail) have proven to offer the most psychologically meaningful narratives. From our experience, we believe that autobiographical narratives represent some of the most interesting and illustrative data that can be extracted from participants. Consider, for example, the following narrative, which was produced by an undergraduate at our institution (University of California, Riverside) during a recent study conducted in our lab: On [date], I got a tattoo ­ a compass on my chest. I got the tattoo because I felt something missing from my body, like the flesh on my chest where the tattoo was supposed to be was just missing. I could feel the loss and see a lighter part of my skin where there should have been ink. With such a positive change of who I am as a person (and I do think that my tattoo helps to define me), it feels weird not to tell my parents. Perhaps we could have gotten much of the same information about this particular participant if we had administered questionnaires pertaining to adult attachment, relations with his or her parents, and family environment. Hanley Researchers have collected autobiographical narratives in a variety of ways. Despite the current focus on the contextualized, or situated, nature of stories. Our research group (McCoy & Dunlop, 2016) has just completed a study that challenges this assumption. In our study, approximately 400 participants were asked to provide 3 autobiographical key scenes from within 1 of 4 assessment contexts, constituting a 2(interviewer present, interviewer absent) × 2(written responses, spoken responses) study design. Of the 15 linguistic categories considered, 14 exhibited a significant main effect for, or interaction with, assessment context. Here, five of the six categories differed significantly across assessment contexts. The takehome message from this research is that assessment contexts substantially influence the content of autobiographical narratives. Where the Rubber Really Meets the Road: Quantifying Narratives Unlike other personality characteristics, notably personality traits, there exists no single framework or conceptual paradigm that the majority of narrative researchers endorse. In contrast, it is not uncommon for researchers to create coding systems for various constructs embedded within narratives on the basis of research questions or the nature of the data in question. Despite this idiosyncrasy, the following three coding systems have developed considerable traction within the field. Agency and Communion Agency, represented by themes such as independence and selfassertion, and communion, represented by themes such as togetherness and social unity. What this really means is that the understanding of many topics, including autobiographical narratives, has been aided through the consideration of the fundamental modality represented by conflicting desires to "get ahead" (agency) and "get along" (communion; Hogan, 1982). Redemption and Contamination Earlier we noted that life stories and autobiographical narratives need be considered in relation to the social and cultural contexts in which they manifest. A related point is that certain forms of narratives are generally supported by certain cultures, relative to others. Within American contexts, the redemptive story represents one such supported, or master, narrative (McAdams, 2006). The inverse of redemption is contamination, which manifests when promising beginnings give way to spoiled endings. Health Consequences and Correlates of Life Stories 219 Transformational Processing Autobiographical narratives have also been noted to differ in terms of affective tone. Health Consequences of Life Stories Life stories represent more than mere conceptions of the past. Some theorists, such as Sarbin (2004), have argued that, once formed, there exists a push to keep the particular story going. This reasoning is suggestive of the possibility that adopting the "right" type of story may actually be associated with certain health trajectories. Recognizing the gravity of this theorizing, our research group (Dunlop & Tracy, 2013) sought to examine differing autobiographical narratives in relation to subsequent health trajectories. In our study, we prompted recovering alcoholics for stories of their most recent drink and then distinguished those narratives that contained redemptive imagery from those narratives that did not. Of note, participants who produced redemptive narratives were initially otherwise demographically, psychologically, and healthwise indistinguishable from nonredemptive participants. Over time, however, the redemptive group was much more likely to maintain their sobriety relative to the nonredemptive group. In addition, redemptive participants increased in their selfreported health over time. The sum total of these results remained significant after controlling for the "usual suspects" in addictions research, such as attribution style, optimism, and depression. Far from being merely reflective, the elements of our life stories exhibit heavy bearing on the lives we come to lead (Sarbin, 2004). A sizable literature notes a strong relationship between the various conceptual elements of key autobiographical scenes and various markers of physical and psychological health. Among these various research pursuits, the work of Adler (2012; Adler, Turner, et al. To take one study from this review, Adler, Kissel, and McAdams (2006) noted that the tendency to construct contaminated key autobiographical scenes corresponded negatively with wellbeing. The conclusion to be taken from this illustrative review is that life stories and key scenes hold considerable incremental validity within the realm of psychological adjustment, health, and wellbeing. These stories have proven themselves to be significant predictors of a host of healthrelated outcomes and processes. These stories have also been recognized as determinants of subsequent development trajectories and our own "character and personality style" (Sarbin, 2004, p. The implications this construct holds for health psychology, thus, are selfevident. Dunlop is an assistant professor of social/personality psychology at the University of California, Riverside. He uses idiographic, nomothetic, and idiographic­nomothetic approaches to examine psychological differences between people, as well as to understand the nature and development of individual lives. She studies the relation between selfdefining autobiographical narratives and social contexts. Hanley is a doctoral graduate student of social/personality psychology at the University of California, Riverside. She is currently studying the domain specificity on life narratives in relation to certain life outcomes.

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