Augmenting Visual Search Performance With Transcranial Direct Current Stimulation (tDCS)

Military personnel endure rigorous and demanding man-hours designated to monitoring and locating targets in tasks such as cyber defense and Unmanned Aerial Vehicle (UAV) operators. These tasks are monotonous and repetitive, which can result in vigilance decrement. The objective of the study was to implement a form of noninvasive brain stimulation known as transcranial DC stimulation (tDCS) over the left frontal eye field (LFEF) region of the scalp to improve cognitive performance. The participants received anodal and cathodal stimulation of 2 mA for 30 min as well as placebo stimulation on 3 separate days while performing the task. The findings suggest that anodal and cathodal stimulation significantly improves detection accuracy. Also, a correlation was detected between percent of eye closure (PERCLOS) and blinking frequency in relation to stimulation condition. Our data suggest that tDCS over the LFEF would be a beneficial countermeasure to mitigate the vigilance decrement and improve visual search performance.     

The effectiveness of three strategies to reduce the influence of bias in evaluations of female leaders

This study tests the effectiveness of three strategies [structured free recall (SFR), source monitoring, and error management] to reduce the impact of raters' stereotypes on evaluations of female leaders. Results reveal several three‐way interactions indicating that that the strategies became more effective as raters' implicit bias decreased. Findings show that the source monitoring and SFR methods were more effective than the error management strategy. The results have implications for improving opportunities for women to advance through the leadership ranks. This study adds to the literature by comparing multiple strategies to reduce the influence of individuals' biases in evaluations of women in leadership positions and revealing the importance of considering raters' implicit gender biases in evaluations.     

Sexual Attitudes and Instructional Set Affect Estimates of Risk and Response Effectiveness

Two hundred and eleven undergraduate men and women were assigned to different instructional set conditions and asked to rate (1) the sexual risk depicted in a set of written items describing problem situations undergraduate women might face when dating or interacting socially with men, and (2) the effectiveness of responses to these situations, described by a set of response codes. Results revealed that sexual attitudes and instructional set were the strongest predictors of both ratings. Gender did, however, predict risk ratings for stranger and authority figure situations, with women rating these situations as more risky than men. In addition, women assigned to the risk instructional set condition rated refusal responses as more effective in decreasing risk than did men in the same condition. In contrast, women assigned to the popularity instructional set condition rated the same refusal responses as less effective in increasing popularity than did men in that condition.

It's the thought that counts: specific brain regions for one component of theory of mind

Evidence from developmental psychology suggests that representing the contents of other people's thoughts and beliefs depends on a component of reasoning about other minds (theory of mind) that is distinct from the earlier-developing mental-state concepts for goals, perceptions, and feelings. To provide converging evidence, the current study investigated the substrate of the late-developing process in adult brains. Three regions--the right and left temporo-parietal junction and the posterior cingulate--responded selectively when subjects read about a protagonist's thoughts, but not when they read about other subjective, internal states or other socially relevant information about a person. By contrast, the medial prefrontal cortex responded equivalently in all of these story conditions, a result consistent with a broader role for medial prefrontal cortex in general social cognition. These data support the hypothesis that the early- and late-developing components of theory of mind rely on separate psychological and neural mechanisms, and that these mechanisms remain distinct into adulthood.     

Looking a gift horse in the mouth as a defense against increasing intimacy

The authors hypothesize that people who fear dependence evidence a particular defensive bias by perceiving benefits received to have been less voluntarily given, which justifies not depending upon their partner. In Study 1, both members of married couples completed daily diaries regarding benefits they gave and received and the extent to which each was given involuntarily versus voluntarily. Avoidant attachment measured before marriage predicted perceiving one’s spouse to have given benefits less voluntarily, controlling for that spouse’s reports of how voluntarily benefits had been given. In Study 2, participants identified three specific benefits received from a friend. Days later, participants were primed with avoidant feelings or not before reporting the extent to which the benefits identified earlier had been given voluntarily. Participants primed to feel avoidant perceived their friend to have given them benefits less voluntarily than did the remaining participants.     

False Memories in Individuals at Risk for Developing an Eating Disorder

In the present study, the authors used the Roediger and McDermott paradigm (H. L. Roediger & K. B. McDermott, 1995) to examine the creation of false memories in individuals at risk for developing an eating disorder. Thirty-three controls and 34 individuals at risk for eating disorders studied 6 word lists taken from the paradigm. Three lists were food related (bread, fruit, sweet), and 3 were not food related (king, doctor, black). Both groups produced false memories (i.e., recalled or recollected words that were not presented in the lists), and controls actually produced more false memories than the at-risk individuals produced in the recall of the food-related items. Groups did not differ in their recall of items not related to food.     

Stressors Experienced by Women Within Marine Corps Families: A Qualitative Study of Discourse Within an Online Forum

The social constructionist perspective frames this exploration of the socioemotional and relational aspects of stress experienced by significant others of active duty Marines. Interpretive methods were applied to data from an online forum for Marine Corps wives, fiancées, and girlfriends. Open coding revealed six stressors: (a) stuck in a state of flux, (b) going through changes, (c) relational uncertainty, (d) loneliness, (e) alienation, and (f) anxiety related to deployment. Axial coding revealed three properties underlying these stressors: (a) issues of control and helplessness, (b) concerns over privileging individual or relational goals, and (c) the matter of locus of blame.     

The mathematical abilities of children with cochlear implants

Research has shown that cochlear implants give rise to improvements in speech recognition and production in children with profound hearing loss but very few studies have explored mathematical abilities in these children. The current study compared the mathematical abilities of 24 children with cochlear implants (mean age 10 years 1 month) to a control group of 22 hearing children (mean age 9 years 8 months). The math questions were categorized into questions that tapped into arithmetic or geometrical reasoning. It was predicted that the cochlear implant group would perform below the hearing group on the arithmetic questions but not the geometrical reasoning questions. Unexpectedly, the results showed that the cochlear implant group performed significantly below the hearing group on both types of math questions, but that this difference was mediated by language skill as assessed by vocabulary knowledge. The clinical implications of these results and possible future research results are considered.