The Effect of Smiling and of Head Tilting on Person Perception

A survey on alcohol and drug use was completed by 1,291 college students. As predicted from research on self-schemas, greater self-efficacy was associated with lower substance use among respondents who indicated having been treated for substance abuse but not among those who had not received treatment. Also, those who reported receiving treatment were more likely than the others to report having attended campus programs on substance abuse. These findings suggest that substance use and its control are important aspects of the self-definition of those who receive treatment for substance abuse.     

Motor imagery and ‘placebo-racket effects’ in tennis serve performance

ObjectivesThis study aimed at confirming whether Motor Imagery (MI) enhances tennis serve performance, and determining whether a placebo condition could affect the beneficial effects of MI.DesignThis study used a 3 × 2 factorial design. Three groups of tennis players were compared in service performance outcomes before and after a training session.MethodsTwenty-two tennis players were assigned into three groups: a control (C) and two experimental groups subjected to a similar MI intervention, one group using their regular own racket (MI group) while the other used a placebo racket (P group).ResultsAnalyses of Covariance revealed no significant group difference when comparing serve velocity after training session, but MI training improved serve accuracy and regularity. Combining placebo racket with MI further resulted in greater serve accuracy score as compared to MI alone. Players' perception of their serve quality improved after MI, and this effect was reinforced in the P group.ConclusionThese findings revealed that MI may be useful to achieve peak performance, and that the implement placebo effect might be a factor in sport performance, hence promoting the beneficial effects of alternative methods to improve tennis serve performance.     

Limits to Confidentiality in U.S. Army Treatment Settings

A number of reports detail ethical concerns of behavioral health providers in the U.S. Military regarding limited confidentiality. This article provides a review of limits to confidentiality in behavioral health settings as outlined by U.S. Army regulations and Department of Defense directives. Specific limits are discussed under seven categories, including: medical treatment and oversight, command notification, threats to safety, public health purposes, judicial or administrative proceedings, law enforcement investigation, and specialized personnel programs. Specific attention is given to war crimes reporting, special duty, and command involvement. Lessons learned for best practice across service branches are provided as a collaborative model for resolving perceived conflict between the APA Ethics Code and military regulations.     

Ego Disjunction as a Factor in Intersexual Attraction

The influence of individuals' intrapsychic motivational conflicts on intersexual dyad formation was investigated. Both members of 71 engaged couples served as Ss. Motivational conflict was assessed with two indices of ego disjunction, one developed by Trehub and the other derived by the present authors from the Trehubian model. Low albeit significant positive correlations were found between the scores of male and female Ss. These results are interpreted as indicative of a modest tendency for persons high in motivational conflict to be attracted to one another.     

The contribution of the dorsolateral prefrontal cortex in full and divided encoding: a paired-pulse transcranial magnetic stimulation study

This research investigated the contribution of the dorsolateral prefrontal cortex (DLPFC) in the attentional resources in episodic encoding for both verbal and non-verbal material. Paired-pulse transcranial magnetic stimulations (TMS) were used to interfere transiently with either the left or right DLPFC during encoding under full attention (FA) or under divided attention (DA) in a recognition paradigm using words and random shapes. Participants recognized fewer items after TMS over the left DLPFC than over the right DLPFC during FA encoding. However, TMS over the left DLPFC did not impair performance when compared to sham condition. Conversely, participants produced fewer items after TMS over the right DLPFC in DA encoding compared to sham condition, but not compared to TMS over the left DLPFC. These effects were found for both words and random shapes. These results suggest that the right DLPFC play an important role in successful encoding with a concomitant task regardless of the type of material.     

I can do that: the impact of implicit theories on leadership role model effectiveness

This research investigates the role of implicit theories in influencing the effectiveness of successful role models in the leadership domain. Across two studies, the authors test the prediction that incremental theorists ("leaders are made") compared to entity theorists ("leaders are born") will respond more positively to being presented with a role model before undertaking a leadership task. In Study 1, measuring people's naturally occurring implicit theories of leadership, the authors showed that after being primed with a role model, incremental theorists reported greater leadership confidence and less anxious-depressed affect than entity theorists following the leadership task. In Study 2, the authors demonstrated the causal role of implicit theories by manipulating participants' theory of leadership ability. They replicated the findings from Study 1 and demonstrated that identification with the role model mediated the relationship between implicit theories and both confidence and affect. In addition, incremental theorists outperformed entity theorists on the leadership task.     

The Glasgow Voice Memory Test: Assessing the ability to memorize and recognize unfamiliar voices

One thousand one hundred and twenty subjects as well as a developmental phonagnosic subject (KH) along with age-matched controls performed the Glasgow Voice Memory Test, which assesses the ability to encode and immediately recognize, through an old/new judgment, both unfamiliar voices (delivered as vowels, making language requirements minimal) and bell sounds. The inclusion of non-vocal stimuli allows the detection of significant dissociations between the two categories (vocal vs. non-vocal stimuli). The distributions of accuracy and sensitivity scores (d’) reflected a wide range of individual differences in voice recognition performance in the population. As expected, KH showed a dissociation between the recognition of voices and bell sounds, her performance being significantly poorer than matched controls for voices but not for bells. By providing normative data of a large sample and by testing a developmental phonagnosic subject, we demonstrated that the Glasgow Voice Memory Test, available online and accessible from all over the world, can be a valid screening tool (~5 min) for a preliminary detection of potential cases of phonagnosia and of “super recognizers” for voices.