Self-efficacy and affective responses to short bouts of exercise

Abstract

One of the most commonly cited barriers to exercise participation is lack of available time. Furthermore, the minimum exercise duration required to produce physiological changes has seen considerable attention, whereas the minimum duration required to produce psychological benefits has been largely ignored. Therefore, the purpose of the current study was to contrast the effects of 10, 15, and 20 minutes of treadmill running on self-efficacy and affective responses. Repeated measures analysis of variance revealed that self-efficacy increased in all participants (p < .001). Furthermore, multivariate analyses of variance showed that each condition generated increases in positive well-being and decreases in psychological distress (p's< .05). Correlational analyses of post-exercise assessments indicated that self-efficacy levels were positively related to positive well-being and inversely related to fatigue. These findings suggest that 10 minutes of aerobic exercise is sufficient to enhance exercise-related self-efficacy and affect.     

Perceptual asymmetry and youths’ responses to stress: Understanding vulnerability to depression

This research examined the hypothesis that reduced posterior right hemisphere activity interferes with the regulation of emotions and behaviour in response to stress, creating vulnerability to depression. Consistent with a diathesis–stress model, we predicted that youths with a reduced posterior right hemisphere bias in emotional processing would engage in less adaptive responses to stress, which would be associated with depressive symptoms in those who reported the recent experience of high, but not low, levels of stress. Participants were 510 4th through 8th graders who completed the Chimeric Faces Task and measures of responses to stress and depressive symptoms. Results supported the idea that responses to stress account for the association between reduced posterior right hemisphere activity and depressive symptoms in youths who report high, but not low, levels of stress. This study provides insight into one process through which reduced posterior right hemisphere activity may confer vulnerability to depressive symptoms, and implicates responses to stress as a target for intervention.     

Coping among children and adolescents with chronic illness

The present study was aimed to investigate age and gender effects on coping with everyday stressors among children and adolescents with chronic illness and healthy controls. Patients (8–13 years of age) with asthma (n=47), atopic dermatitis (n=52), and cancer (n=57) were compared to healthy controls (n=158) matched by age, gender, and grade. Self-report data on coping with academic and interpersonal stressors were collected. The primary results indicated that coping with everyday stressors was improved in children and adolescents with chronic illness compared to healthy controls. Thus, patients reported less passive avoidance on cross-situational coping and tended to show more situation-specific coping with social and school-related stressors than healthy controls. Additionally, among the clinical groups, patients with atopic dermatitis and cancer scored higher on positive self-instructions than patients with asthma. Conclusively, the results suggest that coping with a chronic illness may lead to more effective coping with everyday stressors. Implications for evaluating coping styles in patients with chronic illness are discussed.     

“亚当·斯密问题”的逻辑张力

“亚当·斯密问题”是指斯密的《国富论》与《道德情操论》之间存在着对立或不一致的问题,最初由十九世纪中叶的德国历史学派所提出。此后,随着现实与理论的发展,出现了不同的看法。学者们普遍认为,斯密的两大著作之间、经济学与伦理学之间存在着对立或者不存在对立,而是相互一致的。这些看法都具有各自的积极合理的内容,但缺乏辩证的观点,而没有看到“斯密问题”自身的逻辑张力,也就是说,“斯密问题”所指涉的是现实的经济与伦理之间及作为其理论表现的经济学与伦理学之间的关系。“斯密问题”所含的这些关系呈现出了一个动态的、由肯定到否定再到否定之否定的辩证过程。     

Psychological dynamics and self-perceptions of vasectomy candidates.

Growing concern with population control has focused attention on various methods of contraception including vasectomy. Psychological research on this topic is scant, however. In this study, 9 vasectomy candidates who were undergoing the operation were compared to 9 husbands whose wives were about to have a tubal ligation. Their responses on the Marlowe-Crowne Social Desirability Scale and the Adjective Check List were compared. Most of the data showed no significant differences except on one scale of Counseling Readiness. The results, and others, indicate that vasectomy candidates may have a tendency to deny the anxiety connected with the operation due to its irreversible nature.     

Summation of punishment suppression

In two experiments, eight rats were trained to lever press with food on a variable-interval schedule. Bar pressing produced shock on a variable-interval schedule in the presence of two independently presented stimuli, a light and a tone. Two rats in each experiment received alternative presentations of the light and the tone and were consequently always in the presence of a stimulus that signalled variable-interval punishment. The other two rats in each experiment were treated similarly except that they received periods in which neither light nor tone was present. During these periods, bar pressing was not punished. The two stimuli that signalled punishment were then presented simultaneously to evaluate the effect of stimulus compounding on response suppression. The subjects trained without punishment-free periods did not show summation to the compound stimulus; the subjects trained with punishment-free periods showed summation of suppression. The major difference between the two experiments was the longer mean interval of variable-interval punishment used in the second experiment. This manipulation made the summation effect more resistant to extinction and thus increased its magnitude.     

Career adaptability: A meta-analysis of relationships with measures of adaptivity,adapting responses,and adaptation results

Career adaptability, a psychosocial resource for managing career-related tasks, transitions, and traumas, is a central construct in career construction theory and the field of vocational psychology. Based on the career construction model of adaptation, we conducted a meta-analysis to examine relationships of career adaptability with measures of adaptivity, adapting responses, adaptation results, and demographic covariates. Results based on a total of 90 studies show that career adaptability is significantly associated with measures of adaptivity (i.e., cognitive ability, big five traits, self-esteem, core self-evaluations, proactive personality, future orientation, hope, and optimism), adapting responses (i.e., career planning, career exploration, occupational self-efficacy, and career decision-making self-efficacy), adaptation results (i.e., career identity, calling, career/job/school satisfaction, affective organizational commitment, job stress, employability, promotability, turnover intentions, income, engagement, self-reported work performance, entrepreneurial outcomes, life satisfaction, and positive and negative affect), as well as certain demographic characteristics (i.e., age, education). Multiple regression analyses based on meta-analytic correlations demonstrated the incremental predictive validity of career adaptability, above and beyond other individual difference characteristics, for a variety of career, work, and subjective well-being outcomes. Overall, the findings from this meta-analysis support the career construction model of adaptation.     

The Contribution of Deficits in Emotional Clarity to Stress Responses and Depression

This research investigated the contribution of deficits in emotional clarity to children's socioemotional adjustment. Specifically, this study examined the proposal that deficits in emotional clarity are associated with maladaptive interpersonal stress responses, and that maladaptive interpersonal stress responses act as a mechanism linking deficits in emotional clarity to childhood depressive symptoms. Participants included 345 3(rd) graders (M age = 8.89, SD = .34) assessed at two waves, approximately one year apart; youth completed self-report measures of emotional clarity, responses to interpersonal stress, and depressive symptoms. Results supported the hypothesized process model linking deficits in emotional clarity, maladaptive interpersonal stress responses, and depressive symptoms, adjusting for prior depressive symptoms. Findings have implications for theories of emotional competence and for depression-intervention efforts aimed at fostering emotional understanding and adaptive interpersonal stress responses.