Acute stressors and cortisol responses: a theoretical integration and synthesis of laboratory research

This meta-analysis reviews 208 laboratory studies of acute psychological stressors and tests a theoretical model delineating conditions capable of eliciting cortisol responses. Psychological stressors increased cortisol levels; however, effects varied widely across tasks. Consistent with the theoretical model, motivated performance tasks elicited cortisol responses if they were uncontrollable or characterized by social-evaluative threat (task performance could be negatively judged by others), when methodological factors and other stressor characteristics were controlled for. Tasks containing both uncontrollable and social-evaluative elements were associated with the largest cortisol and adrenocorticotropin hormone changes and the longest times to recovery. These findings are consistent with the animal literature on the physiological effects of uncontrollable social threat and contradict the belief that cortisol is responsive to all types of stressors.     

Acute exposure to a novel stressor further reduces the habituated corticosterone response to restraint in rats

The present study sought to identify dishabituation of the hypothalamic-pituitary-adrenal(HPA) axis response to different psychological stressors. Young adult male Sprague Dawley rats were exposed to five, 1 h sessions of restraint stress on five consecutive days. On the sixth day, and 2 h before additional exposure to restraint, animals were subjected to 30 min of a small (27cm square), elevated open field stressor (pedestal), which served as the dishabituating stimulus. We predicted HPA axis response dishabituation in chronically restrained rats exposed to the novel pedestal. Rats which underwent five days of restraint stress showed significantly blunted plasma corticosterone levels to restraint (habituation) as compared to restraint-nai've rats. However, rats which underwent five sessions of restraint responded with an enhanced habituation response when confronted with restraint shortly after exposure to the novel pedestal. Instead of HPA axis response dishabituation, we observed enhanced habituation. Subsequent experiments determined that a 1.25 mgkg corticosterone injection could substitute for pedestal exposure to produce enhanced restraint habituation.Combined treatment with both the glucocorticoid receptor antagonist RU40555 (30 mgkg)and the mineralocorticoid receptor antagonist RU283 18 (50 mgkg) blocked the expression of enhanced habituation after pedestal exposure. Thus, the delayed corticosterone negative feedback produced by novel stress led to enhanced expression of corticosterone response habituation.     

Measuring moral disengagement with a situational judgment test: Advancing the assessment of an important workplace construct

Moral disengagement (MD) has been characterized as a uniquely important predictor of counterproductive work behaviors (CWBs). This study describes the development and validation of a situational judgment test (SJT) for measuring MD in the workplace, which offers potential advantages over existing Likert‐type scales. The development/validation efforts involved two independent rounds of subject‐matter expert (SME) review and data collected from three independent samples. The resulting test, labeled the MD‐SJT, displayed high reliability, was related to an established measure of MD as well as hypothesized personality variables, and was incrementally predictive of CWBs above the established measure of MD. This study advances knowledge pertaining to the assessment of MD, which is a critically important construct in the workplace.     

Parenting among Settled Migrants from Southern Africa: A Qualitative Evidence Synthesis

Journal of Child and Family Studies - The Global North has over the years been a popular destination for migrants from the Global South. Most of the migrants are in their reproductive ages who go...     

Political Conviction and Epistemic Injustice

Philosophia - Epistemic injustice occurs when we fail to appropriately respect others as epistemic agents. Philosophers building on the work of Miranda Fricker, who introduced the concept, have...     

Community Implementation of MI-Enhanced Behavior Therapy for Adolescent ADHD: Linking Fidelity to Effectiveness

Evidence-based behavior therapy for adolescent ADHD faces implementation challenges in real-world settings. The purpose of this trial was to investigate the relationship between implementation fidelity and outcomes among adolescents receiving services in the active treatment arm (N = 114; Motivational Interviewing [MI]-enhanced parent-teen behavior therapy) of a community-based randomized trial of adolescent ADHD treatment. Participants received therapy from community clinicians (N = 44) at four agencies in a large, ethnically diverse metropolitan setting. Therapists provided self-report of session-by-session adherence to content fidelity checklists and audio recordings of sample sessions that were coded for MI integrity. Parents provided report of ADHD symptoms and family impairment at baseline, posttreatment, and follow-up, while academic records were obtained directly from the local school district. Results indicated that content fidelity significantly waned across the 10 manualized sessions (d = -1.23); these trends were steepest when therapy was delivered outside the office-setting and parent attendance was low. Community therapist self-report of content fidelity predicted significantly greater improvements in academic impairment from baseline to follow-up. MI delivery quality was not associated with improved outcomes; contrary to hypotheses, lower MI relational scores predicted significantly greater improvements in family impairment over time. Findings indicate that community-based outcomes for evidence-based ADHD treatment are enhanced when treatment is implemented with fidelity. Future work should revise community-based implementation strategies for adolescent ADHD treatment to prevent declines in fidelity over time, thereby improving outcomes.     

How Do Coworkers “Make the Place”? Examining Coworker Conflict and the Value of Harmony in China and the United States

The goal of this study was to test cross‐cultural/cross‐national differences in the association between coworker interpersonal justice and coworker conflict and the implications of such differences for employee effectiveness. Harmony is a central value in China but is less important in the United States, and the individual value of harmony may influence Chinese and US employees differently in their response to low levels of coworker interpersonal justice. We collected data from employees and their coworkers in China (214 dyads) and the US (301 dyads). There were three major findings. First, coworker interpersonal justice was negatively related to coworker conflict. Second, coworker conflict significantly mediated coworker interpersonal justice in relation to the employee effectiveness variables of task performance, organisational citizenship behaviours, and counterproductive work behaviours. Finally, in the Chinese sample, harmony significantly buffered the indirect effect of coworker interpersonal justice on employee effectiveness via coworker conflict, whereas in the US sample, harmony significantly intensified the indirect effect of coworker interpersonal justice on employee effectiveness via coworker conflict.     

Unpacking Competitiveness Within and Between Women: Discussion of “With Friends Like These,Who Needs Enemies?”

F. Diane Barth’s paper (this issue) illustrates how a woman’s competitiveness can set her up for significant psychic conflict and interpersonal strife. Achievement strivings are an arena in which “being for oneself” may undermine—in fantasy, but also in reality—one’s ability to “be for the other,” and vice versa. My discussion contextualizes Barth’s thinking in relation to earlier psychoanalytic explorations of the female gender identity and its development. I elaborate on the special challenges involved in the achievement-oriented and competitive urges of women in particular, and I attempt to parse more fully the diverse nature and motivational wellsprings of such strivings. While recognizing the author’s clear helpfulness to the patient, I raise a few questions about her theoretical position and technical approach in the case study she presents. In particular, I address what seems to me to be a dominant-submissive element that to some extent reenacts the competitive dynamic being analyzed.