The influence of gender and ethnicity on children's peer collaborations

Gender and ethnicity are important aspects of children's everyday social relationships, yet little is known about how these social categories influence children's collaborative interactions. In the present study, 322 White (Caucasian) and South Asian boys and girls (mean age, 7.5 years) collaborated in pairs on easy and difficult versions of a model completion task. As expected, girls were less assertive than boys in conversation, yet this relation held only for all‐Asian pairs (i.e., an Asian boy and girl in conversation). Also consistent with expectations, levels of conversational affiliation were lowest in cross‐ethnic interaction. The influence of gender and ethnicity on conversations did not vary in light of contrasting cognitive demands of the tasks. Results are discussed in relation to work on effective peer collaboration and the potential role of contact in promoting positive ethnic and gender group attitudes.     

The development of sustained attention in children: the effect of age and task load.

This study explored how children's sustained attention develops and the effect of manipulating task parameters on sustained attention. The sample comprised 57 children (5-12 years) who completed CogState and Score! (Test of Everyday Attention for Children). Novel variability and traditional indices indicated rapid development from 5-6 to 8-9 years on all measures and a developmental plateau from 8-9 to 11-12, with growth evident on some measures. Findings suggest that sustained attention improves to age 10, then plateaus with only minor improvements. Further, performance was generally poorer on high load tasks compared to low load, with the same developmental pattern uncovered.     

The Differential Effect of Perceived Control and Negative Affectivity as a Function of Gender after Coronary Artery By-pass Graft Surgery

The present study was designed to examine the moderating effect of gender on the impact of negative affectivity (NA) and perceived control on physical and psychological symptoms after coronary artery bypass graft surgery (CABG). A higher effect of NA and perceived control was found on symptoms for men than for women. This may indicate that men and women process information differentially, which affects their perception of events and situations. The present study is unique in that it considers gender differences in the effects of two opposite personality traits on symptoms.     

Need for speed: Evaluating slopes of OCD recovery in behavior therapy enhanced with d-cycloserine

Evidence suggests that the antibiotic d-cycloserine (DCS) enhances the treatment effects of exposure and response prevention (ERP) for Obsessive-Compulsive Disorder (OCD). Further, evidence suggests that the effects of DCS diminish partway through treatment, but it is unclear to what extent. In an effort to evaluate these issues, the current study re-analyzes data from a 10-session randomized controlled trial of ERP + DCS versus ERP + placebo in a sample of 22 adults with OCD. We analyzed repeated-measures mixed models with random slopes and intercepts across different intervals: sessions 1-10, 1-5, and 6-10. The results indicate that the course of ERP was 2.3 times faster over the full 10 sessions for the DCS compared to the placebo group, and nearly six times quicker in the first half of ERP. Further interpretation of the results suggests that DCS does not amplify the effects of ERP, but instead initiates treatment effects sooner in treatment. In addition, DCS does not necessarily lose its effect over repeated use, but instead may exhaust its maximum utility after effectively jump-starting ERP. Ultimately, DCS may provide a means for curtailing treatment costs, decreasing treatment dropout and refusal rates, and enhancing access to care.     

Brief Report: Physician Narcissism,Ego Threats,and Confidence in the Face of Uncertainty

Although adequate self‐esteem is essential for psychological health, people with high but fragile self‐esteem have been shown to exhibit defensive, often aggressive behavior when their self‐esteem is threatened. We measured physician narcissism (as a proxy for high but fragile self‐esteem) and used a subtle manipulation to examine how physicians who varied in levels of narcissism responded to an ego threat. We found that physicians high in narcissism, as compared with those lower in narcissism, were more likely to respond to ego threat by attempting to bolster their self‐image. Concerned about self‐image, physicians in this situation may be insufficiently receptive to new information and instead attempt to justify initial opinions.     

The performance of domestic dogs (Canis lupus familiaris) on two versions of the object choice task

Animal Cognition - Object choice task (OCT) studies are widely used to assess the phylogenetic and ontogenetic distribution of the understanding of communicative cues, with this understanding...     

A review of research on smoking among United States Veterans with posttraumatic stress disorder (2006–2016)

Posttraumatic stress disorder (PTSD) is one of the most common psychiatric disorders diagnosed in U.S. veterans. PTSD is associated with high smoking prevalences and difficulty quitting in the general U.S. population. The current study reviewed research on smoking and PTSD in U.S. veteran samples to summarize past research and identify areas in need of additional inquiry. MEDLINE and PsycINFO searches identified papers on smoking in samples of U.S. veterans with PTSD published from January 2006 through December 2016. Thirty-four articles met all of the inclusion criteria: (a) part of the sample consisted of U.S. veterans with PTSD or PTSD symptoms, and (b) the study examined some aspect of smoking behavior. U.S. veterans with PTSD were more likely to report smoking, heavy smoking, nicotine dependence, and late-onset smoking compared to veterans without PTSD. Smoking behaviors (e.g., current smoking, heavy smoking, smoking expectancies) differed by PTSD symptoms and by combat exposure. Smoking cessation feasibility studies examined the integration of smoking treatment into PTSD clinics and found favorable outcomes. Future research on veterans with PTSD would benefit from extending topics beyond rates of smoking to better understand the treatment needs of veterans. Research on smoking-related behaviors can help identify areas to target for interventions.