Prospective memory in the rat

The content of prospective memory is comprised of representations of an action to perform in the future. When people form prospective memories, they temporarily put the memory representation in an inactive state while engaging in other activities, and then activate the representation in the future. Ultimately, successful activation of the memory representation yields an action at an appropriate, but temporally distant, time. A hallmark of prospective memory is that activation of the memory representation has a deleterious effect on current ongoing activity. Recent evidence suggests that scrub jays and non-human primates, but not other species, are capable of future planning. We hypothesized that prospective memory produces a selective deficit in performance at the time when rats access a memory representation but not when the memory representation is inactive. Rats were trained in a temporal bisection task (90 min/day). Immediately after the bisection task, half of the rats received an 8-g meal (meal group) and the other rats received no additional food (no-meal group). Sensitivity to time in the bisection task was reduced as the 90-min interval elapsed for the meal group but not for the no-meal group. This time-based prospective-memory effect was not based on response competition, an attentional limit, anticipatory contrast, or fatigue. Our results suggest that rats form prospective memories, which produces a negative side effect on ongoing activity.     

Peer assessments of normative and individual teacher–student support predict social acceptance and engagement among low-achieving children

This study used hierarchical linear modeling to predict first grade students' peer acceptance, classroom engagement, and sense of school belonging from measures of normative classroom teacher–student support and individual teacher–student support. Participants were 509 (54.4% male) ethnically diverse, first grade children attending one of three Texas School districts (1 urban, 2 small city) who scored below their school district median on a measure of literacy administered at the beginning of first grade. Peer nominations from 5147 classmates were used to assess both normative and individual levels of teacher support. Normative classroom teacher–student support predicted children's peer acceptance and classroom engagement, above the effects of child gender, ethnic minority status, and individual teacher–student support. Results are discussed in terms of implications for teacher preparation and professional development.     

Workplace justice outcomes as a function of adversaries' gender composition: A field assessment

There is extensive documentation that the sex of organizational members may bias a wide variety of managerial decisions and workplace outcomes. While such effects have been persuasively demonstrated, the sex context of these effects has received little attention. It is argued here that it is not merely the sex of the actor, but the nature of the dyadic match (male/male; female/female; male/female; female/male) that is a critical influence on outcomes. This hypothesis is strongly supported by gross differences in workplace justice outcomes based on the dyadic composition of the actors involved in dispute proceedings (n=369) in a field setting. These results are tempered, however, inasmuch as analysis also indicates differences in the severity of disputed issues across these dyadic compositions.     

Developing suicide prevention programs for African American youth in African American churches

Suicide prevention programs for African American youth in African American churches may have broad appeal because: (1) the Black Church has a strong history of helping community members, regardless of church membership; (2) African Americans have the highest level of public and private religiousness; and (3) the church can help shape religious and cultural norms about mental health and help-seeking. The proposed gatekeeper model trains lay helpers and clergy to recognize the risk and protective factors for depression and suicide, to make referrals to the appropriate community mental health resources, and to deliver a community education curriculum. Potential barriers and suggestions for how to overcome these barriers are discussed.     

When your boss says no! The effects of leadership style and trust on employee reactions to managerial explanations

The present study proposes and tests a model that examines the relationship between leadership style, trust, employee interpretations of managerial explanations, and justice perceptions. Using a critical incident methodology, 203 working adults were asked to recall a recent situation in which a request or proposal made to their manager was denied. Results provide strong support for the theoretical model. Namely, the effect of leadership style on explanation perceptions was indirect through employees' level of trust in their manager. Specifically, employees who felt their manager was transformational reported a higher degree of trust and more favourable reactions to managerial explanations.     

The self-protective and undermining effects of attributional ambiguity

Two experiments assessed the self-protective and undermining effects of attributional ambiguity. Both studies utilized immersive virtual environment technology to achieve otherwise difficult manipulations of stigma. In Experiment 1, White and Latino participants were either stigmatized (represented as Latino) or not (represented as White) and given negative leadership performance feedback. Afterwards, stigmatized participants reported higher well-being and attributed negative feedback more to discrimination than nonstigmatized participants. In Experiment 2, Latinos represented veridically showed self-protective effects after receiving negative leadership feedback. Additionally, this experiment revealed undermining effects of attributional ambiguity such that those participants represented as Latino discounted positive feedback and reported lower well-being. Thus, attributional ambiguity of stigmatized individuals (real or induced) buffered well-being in the face of negative feedback but undermined the well-being effects of positive feedback.     

Psychosocial mediation of religious coping styles: a study of short-term psychological distress following cardiac surgery

Although religiousness and religious coping styles are well-documented predictors of well-being, research on the mechanisms through which religious coping styles operate is sparse. This prospective study examined religious coping styles, hope, and social support as pathways of the influence of general religiousness (religious importance and involvement) on the reduced postoperative psychological distress of 309 cardiac patients. Results of structural equation modeling indicated that controlling for preoperative distress, gender, and education, religiousness contributed to positive religious coping, which in turn was associated with less distress via a path fully mediated by the secular factors of social support and hope. Furthermore, negative religious coping styles, although correlated at the bivariate level with preoperative distress but not with religiousness, were associated both directly and indirectly with greater post-operative distress via the same mediators.     

Weight beliefs and messages: Mindsets predict body‐shame and anti‐fat attitudes via attributions

In two samples (N = 247, N = 291), we examined the link between beliefs and messages about the changeable (incremental theory) vs. fixed (entity theory) nature of weight, attributions for weight, and body shame. We recruited participants using online sampling, employing a correlational design in Study 1 and an experimental design in Study 2. Across both studies, we found evidence for the stigma‐asymmetry effect—incremental, relative to entity beliefs/messages of weight predicted both (a) stronger onset responsibility attributions, indirectly increasing body shame and (b) stronger offset efficacy attributions, indirectly decreasing body shame. Study 2 replicated the stigma‐asymmetry effect with anti‐fat attitudes. We discuss implications for public health obesity messages with the goal of reducing stigma.     

Influence of Motor Cortex Stimulation During Motor Training on Neuroplasticity as a Potential Therapeutic Intervention

Rehabilitation options to promote neuroplasticity may be enhanced when patients are engaged in motor practice during repetitive transcranial magnetic stimulation (rTMS). Twelve participants completed 3 separate sessions: motor practice, motor practice with rTMS, and rTMS only: motor practice consisted of 30 isometric contractions and subthreshold rTMS was 30, 3-s trains at 10 Hz. Assessments included the Box and Block Test (BBT), force steadiness (10% of the maximum voluntary contraction), and TMS (cortical excitability, intracortical inhibition, and intracortical facilitation). Participants significantly increased BBT scores following the combined condition. Force steadiness improved after all 3 conditions (p < .05). TMS outcomes depended on intervention condition with significant increases in facilitation following the motor practice plus rTMS condition. All interventions influenced motor control, yet are likely modulated differently when combining motor practice plus rTMS. These results help guide the clinical utility of rTMS as an intervention to influence motor control.