Academic self-concept of ability and cortisol reactivity

The present study aimed to clarify the relationship between a school-specific trait (academic self-concept of ability [ASCA]) and hormonal stress response by using a trait-compatible stressor (test). First, we determined 52 students' ASCA scores for biology and measured their salivary cortisol concentration before and after a biology test (experimental group, n = 28) or a free writing task (control group, n = 24). For participants who took the test, statistical analysis indicated a significant negative correlation between ASCA score and cortisol response. In contrast, the control group showed a decrease in cortisol concentrations between test times and no correlation between cortisol concentration and ASCA scores were found. These findings indicated an interaction between ASCA scores and hormonal stress response when an academic-related stressor is present. Furthermore, these variables might influence each other adversely: high cortisol concentrations during a test situation may lead to greater feelings of insecurity, resulting in low ASCA scores and awareness of these low scores may lead to a further increase in cortisol, creating a vicious cycle.     

Event centrality and posttraumatic outcomes in the context of pervasive violence: a study of teachers in El Salvador

It is well established that the importance assigned to a trauma can affect one's recovery and psychological health in numerous ways. Event centrality is an increasingly popular construct that captures the tendency among survivors to reevaluate and possibly accommodate their worldviews posttrauma. The centrality given to trauma appears to serve as a “double-edged sword” in that this construct might factor prominently in both posttraumatic stress disorder (PTSD) and posttraumatic growth (PTG). Focusing on 257 violence-exposed teachers from educational departments throughout El Salvador, we examined whether the centrality assigned by the teachers to stressful life events uniquely predicted both PTSD symptomatology and PTG. Results revealed that event centrality was positively related to both PTSD and PTG, even when controlling for demographic factors, violence exposure, and depression. In addition, PTSD symptomatology and PTG were not associated with one another in this sample. In summary, these findings support the role of event centrality as a contributing factor for PTSD and PTG among persons exposed to pervasive trauma.     

Financial strain,social capital,and perceived health during economic recession: a longitudinal survey in rural Canada

Although the health consequences of financial strain are well documented, less is understood about the health-protective role of social capital. Social capital refers to a sense of community embeddedness, which is in part reflected by group membership, civic participation, and perceptions of trust, cohesion, and engagement. We investigated whether perceptions of social capital moderate the relation between financial strain and health, both mental and physical. This longitudinal study surveyed adults in two communities in rural Ontario where significant job losses recently occurred. Data were collected on financial strain, social capital, perceived stress, symptoms of anxiety and depression, and physical health on three occasions over 18 months (N's = 355, 317, and 300). As expected, financial strain positively related to perceived stress, poor physical health and symptoms of anxiety and depression, whereas social capital related to less stress, better physical health, and fewer symptoms of anxiety and depression. Effects of financial strain on perceived stress and depressive symptoms were moderated by social capital such that financial strain related more closely to perceived stress and depressive symptoms when social capital was lower. The findings underscore the health-protective role of community associations among adults during difficult economic times.     

Living with the unexplained: coping,distress, and depression among women with chronic fatigue syndrome and/or fibromyalgia compared to an autoimmune disorder

Chronic fatigue syndrome (CFS) and fibromyalgia are disabling conditions without objective diagnostic tests, clear-cut treatments, or established etiologies. Those with the disorders are viewed suspiciously, and claims of malingering are common, thus promoting further distress. It was hypothesized in the current study that levels of unsupportive social interactions and the coping styles used among those with CFS/fibromyalgia would be associated with perceived distress and depressive symptoms. Women with CFS/fibromyalgia (n = 39), in fact, reported higher depression scores, greater perceived distress and more frequent unsupportive relationships than healthy women (n = 55), whereas those with a chronic, but medically accepted illness comprising an autoimmune disorder (lupus erythematosus, multiple sclerosis, rheumatoid arthritis; n = 28), displayed intermediate scores. High problem-focused coping was associated with low levels of depression and perceived distress in those with an autoimmune condition. In contrast, although CFS/fibromyalgia was also accompanied by higher depression scores and higher perceived distress, this occurred irrespective of problem-focused coping. It is suggested that because the veracity of ambiguous illnesses is often questioned, this might represent a potent stressor in women with such illnesses, and even coping methods typically thought to be useful in other conditions, are not associated with diminished distress among those with CFS/fibromyalgia.     

Relating individual differences in internalizing symptoms to emotional attention set-shifting in children

A growing body of evidence points to links between internalizing symptoms and various executive functioning deficits, and especially to inhibition and set-shifting difficulties. However, there is limited developmental research regarding the impact of internalizing symptoms on the shifting function, particularly during middle childhood. The current study investigated attention shifting in a sample of 108 early school age children (7–11 years) using a task-switching paradigm which required participants to alternate between emotional and nonemotional judgments. Results indicated that higher levels of internalizing symptoms (anxiety and depression) had a detrimental effect on performance efficiency (measured by response times) but not on response accuracy. This effect was only observed on emotional (and not on nonemotional) repetition trials and did not affect switching trials; moreover, it was only present when feedback was presented to participants. The findings partially support the predictions of the Attentional Control Theory in a developmental sample and suggest that individual differences in internalizing symptoms play a role in children's ability to flexibly alternate between emotional judgments.     

A stress and coping perspective on health behaviors: theoretical and methodological considerations

Health behaviors such as eating and exercising have been linked to stress in many studies, and researchers suggest that these links are in large part due to the use of health behaviors to cope with stress. However, health behaviors in the context of coping have received relatively little research attention. In this paper, we briefly survey the literature linking stress, coping, and health behaviors, noting that very little research has explicitly examined health behaviors as coping with stress. We address critical theoretical and methodological issues that arise in applying a stress and coping perspective to health behaviors. We conclude with potential directions for interventions, including the need for conceptually solid and methodologically rigorous research and the development of new measures, and with suggestions for future research. The concepts of self-regulation and stress management and their implications in health behavior research and interventions are also discussed.     

Symptoms of Meares-Irlen/Visual Stress Syndrome in subjects diagnosed with Chronic Fatigue Syndrome

Several diagnostic symptoms of the visual-processing deficit Meares-Irlen/Visual Stress Syndrome are remarkably similar to symptom manifestations reported by individuals with chronic fatigue syndrome (CFS). We surveyed the specific incidences of nine widely-recognised symptoms of visual stress (VS) in a group of subjects (n = 20) previously diagnosed with CFS. The presence of each symptom of VS in the CFS group was compared to its respective presence in both an age and sex matched healthy comparison group (n = 46), and an age and sex matched group comprised of individuals (n = 14) diagnosed with VS. Results showed the frequencies of all nine VS symptoms in the CFS-diagnosed group to be significantly higher (p = .032 – p < .0005) than in the comparison group, with only two symptoms being statistically less frequent in the CFS group than in the VS-diagnosed group. The average number of VS symptoms reported by the CFS group was also significantly higher than the comparison group, yet not significantly different from the VS group. Thus, the occurrence of VS symptoms in subjects diagnosed with CFS appears to be far greater than previously reported, which in turn may indicate the interplay of some yet to be identified underlying factor(s) common to both conditions.     

Gratitude and personal functioning among earthquake survivors in Indonesia

This study examined the potential role of gratitude as a protective factor against posttraumatic stress (PTS) symptomatology and global distress (GD) in the wake of disasters. Using longitudinal methodology, we assessed positive coping, gratitude, PTS symptomatology, and GD among 310 survivors of the 2009 Padang earthquake in Indonesia five and eight months after the disaster. Psychological hardiness and neuroticism were also measured at baseline. A general prototype model was constructed to predict scores on each of the dependent variables (GD and PTS symptomatology) at both time points. Hardiness and neuroticism were associated with GD and PTS at Time 1, but gratitude and positive coping had concurrent associations with these variables at Time 2. The unique association between gratitude and impairment at Time 2 suggests that it may play a role in adjustment to extreme disaster, but that it takes time to do so.     

Childhood sexual abuse and impulsive personality traits: Mixed evidence for moderation by DRD4 genotype

This project examines associations between childhood sexual abuse (CSA) and two dimensions of impulsivity (sensation seeking and premeditation), and tests whether CSA-personality associations are moderated by the DRD4 exon III VNTR polymorphism. Sample 1 is from a longitudinal study of university students measured at 10 waves over ages 18–24 years (n = 500). Sample 2 is from a national sample of young adult sibling pairs, ages 18–24, from the National Longitudinal Study of Adolescent Health (n = 2559). In both samples, CSA was associated with elevated sensation seeking. In Sample 1, the association between CSA and sensation seeking was moderated by DRD4 genotype; this gene × environment interaction effect, however, was not replicated in Sample 2. Results suggest new avenues for research on CSA in the area of normal-range personality variation.