The sad, the angry, and the asymmetrical brain: dichotic listening studies of negative affect and depression

Dichotic Listening (DL) is a valuable tool to study emotional brain lateralization. Regarding the perception of sadness and anger through affective prosody, the main finding has been a left ear advantage (LEA) for the sad but contradictory data for the anger prosody. Regarding an induced mood in the laboratory, its consequences upon DL were a diminished right ear advantage (REA) for the induction of sadness and an increased REA for the induction of anger. The global results fit with the approach-withdrawal motivational model of emotional processing, pointing to sadness as a right hemisphere emotion but anger processed bilaterally or even in the left hemisphere, depending on the subject's preferred mode of expression. On the other hand, the study of DL in clinically depressed patients found an abnormally larger REA in verbal DL tasks which was predictive of therapeutic pharmacological response. However, the mobilization of the available left hemisphere resources in these responders (reflected in a higher REA) would indicate a remission of the episode but would not assure the absence of new relapses.     

Colateralization of Broca's area and the visual word form area in left-handers: fMRI evidence

Language production has been found to be lateralized in the left hemisphere (LH) for 95% of right-handed people and about 75% of left-handers. The prevalence of atypical right hemispheric (RH) or bilateral lateralization for reading and colateralization of production with word reading laterality has never been tested in a large sample. In this study, we scanned 57 left-handers who had previously been identified as being clearly left (N = 30), bilateral (N = 7) or clearly right (N = 20) dominant for speech on the basis of fMRI activity in the inferior frontal gyrus (pars opercularis/pars triangularis) during a silent word generation task. They were asked to perform a lexical decision task, in which words were contrasted against checkerboards, to test the lateralization of reading in the ventral occipitotemporal region. Lateralization indices for both tasks correlated significantly (r = 0.59). The majority of subjects showed most activity during lexical decision in the hemisphere that was identified as their word production dominant hemisphere. However, more than half of the sample (N = 31) had bilateral activity for the lexical decision task without a clear dominant role for either the LH or RH, and three showed a crossed frontotemporal lateralization pattern. These findings have consequences for neurobiological models relating phonological and orthographic processes, and for lateralization measurements for clinical purposes.     

Flirting With Disaster: Short‐Term Mating Orientation and Hostile Sexism Predict Different Types of Sexual Harassment

We combine evolutionary and sociocultural accounts of sexual harassment, proposing that sexuality‐related and hostility‐related motives lead to different types of harassment. Specifically, men's short‐term mating orientation (STMO) was hypothesized to predict only unwanted sexual attention but not gender harassment, whereas men's hostile sexism (HS) was hypothesized to predict both unwanted sexual attention and gender harassment. As part of an alleged computer‐chat task, 100 male students could send sexualized personal remarks (representing unwanted sexual attention), sexist jokes (representing gender harassment), or nonharassing material to an attractive female target. Independently, participants’ STMO, HS, and sexual harassment myth acceptance (SHMA) were assessed. Correlational and path analyses revealed that STMO specifically predicted unwanted sexual attention, whereas HS predicted both unwanted sexual attention and gender harassment. Furthermore, SHMA fully mediated the effect of HS on gender harassment, but did not mediate effects of STMO or HS on unwanted sexual attention. Results are discussed in relation to motivational explanations for sexual harassment and antiharassment interventions. Aggr. Behav. 38:521‐531, 2012. © 2012 Wiley Periodicals, Inc.     

Understanding and Responding to Victims of Interpersonal Sexual Violence and Sexual Assault within Committed Relationships

Abstract

The purpose of this article is to increase therapeutic discussion surrounding intimate partner sexual violence (IPSV) by increasing understanding in how victims of IPSV perceive and respond to the assault. Although IPSV has received little research attention, sexual violence within relationships occurs at an alarmingly high rate. Theories of sexual assault, such as sex-role socialization, are discussed to aid clinicians in better identifying assaultive behaviors and common physical and emotional responses of victims. Additionally, the authors provide a framework for the assessment of IPSV and suggestions on “best practices” for creating conversations that promote hope and healing.     

Religious Beliefs,Diet, and Physical Activity Among Jewish Adolescents

Despite a well‐documented connection between religion and mortality, the link between religion and obesity‐related outcomes and behaviors has not been adequately studied, particularly among adolescents. This study examines whether self‐reported religious beliefs influence decisions about physical activity and diet in a sample of Jewish adolescents (n = 351). The results show that reporting a stronger influence of religious beliefs on health behaviors is associated with behaviors related to physical activity, but not diet. In adjusted regression models, individuals who report that their religious beliefs influence decisions about being physically active “a lot” have significantly more active days per week than those who say their religious beliefs do not influence such decisions. Similar effects are seen with regard to the students’ overall amount of sedentary time. The results shed light on previously documented relationships between religion and health, provide practical implications for religious organizations and leaders, and suggest areas for future research.     

Effects of access to a stimulating object on infant behavior during tummy time

Placing infants in a prone position for "tummy time" often is recommended to ensure appropriate infant development and to combat the effects associated with infants spending extended periods of time in a supine position. However, tummy time may be associated with inappropriate infant behavior such as crying and noncompliance. We provided continuous access to a preferred stimulus to decrease negative vocalizations and to increase the duration of an infant's head being elevated during tummy time.     

"That's so gay!" Priming the general negative usage of the word gay increases implicit anti-gay bias

One of the most recent uses of the term gay is to refer to things as negative in general, detached from explicit reference to gay individuals. Research has shown that exposure to explicitly homonegative speech can increase anti-gay bias; however, the effect of more ambivalent homonegative speech on implicit attitudes has not yet been explored. Despite the conscious disassociation between both meanings of the word, given previous studies on priming and automaticity, an association was expected at an automatic level. Therefore, this study investigated the effect of priming the general negative usage of gay on participants' implicit attitudes towards gay individuals, as measured by the Implicit Association Test. Results revealed that exposure to the general negative usage of gay increased implicit anti-gay bias.     

Student Prejudice Against Gay Male and Lesbian Lecturers

Abstract

The authors examined whether gay men and lesbians are evaluated more negatively than individuals of unspecified sexual orientation when attributional ambiguity surrounds evaluations and whether they are evaluated similarly to unspecified others when no attributional ambiguity is present. One male and one female lecturer delivered either a strong or a weak lecture to students who either (a) believed that the lecturer was a gay man or a lesbian or (b) did not receive sexual orientation information. Contrary to predictions, the quality of the lecture did not influence the ratings of known gay male and lesbian lecturers, although lecture quality strongly influenced ratings of lecturers whose sexual orientation was unspecified. After strong lectures, participants rated known gay male and lesbian lecturers more negatively than they did lecturers whose sexual orientation was unspecified. After weak lectures, participants rated known gay male and lesbian lecturers more positively than they did the others. The authors discussed the possibility that students might moderate their ratings to avoid discriminating against gay and lesbian lecturers.     

Investigating the effects of ego depletion on physical exercise routines of athletes

Objectives

Persisting at a task can temporarily reduce one’s ability to persist at subsequent tasks. This phenomenon is known as “ego depletion”. Although ego depletion has been linked to many cognitive tasks less is known about its effect on physical tasks. Even less is known about its effect on practiced physical performance associated with athletes. In modern sport science, the question as to whether or not ego depletion can reduce athletes’ persistence at practiced behaviour should be particularly important. Two experimental studies investigated if ego depletion can reduce athletes’ persistence at a routine physical exercise.

Design

In both experiments, a repeated measures design was employed.

Method

Competitive rowers (Experiment 1) and competitive hockey and rugby players (Experiment 2) attempted to complete as many press-ups (Experiment 1) or sit-ups (Experiment 2) as possible over two separate phases. In one phase, the participants attempted the physical exercise after completing an easy cognitive task. In the other phase, they attempted the physical exercise after completing a difficult cognitive task.

Results

Experiment 1 demonstrated that the competitive rowers completed fewer press-ups after completing a difficult cognitive task than they did after completing an easy task. Experiment 2 demonstrated that the competitive hockey and rugby players completed fewer sit-ups after completing a difficult cognitive task than they did after completing an easy cognitive task.

Conclusions

These findings indicate that athletes’ exercise routines are susceptible to ego depletion and that the strength model of self-regulation is applicable to athletic performance.     

Physical activity interventions in the school setting: A systematic review

Objectives

To review the effectiveness of school-based interventions with a physical activity component by measuring changes in psychological determinants, physical activity, and health outcomes.

Design

Systematic Review.

Method

We conducted a literature search of school-based controlled studies that involved a physical activity intervention targeting school students. Study design, methodological quality, and effectiveness of interventions on three target levels, ‘health and fitness’ (BMI and motor performance), ‘physical activity’, and ‘psychological determinants’ (knowledge of physical activity effects, self-concept, and attitudes towards physical activity), were analysed. Furthermore, we examined the influence of specific factors (e.g., age and gender) and mediator effects.

Results

The literature search identified 129 studies. The majority of the studies examining motor performance, physical activity, and knowledge of physical activity achieved significant results (69.7%, 56.8% and 87.5%, respectively). Significant effects on self-concept and attitudes were also found but to a smaller extent (in 30% and 43.8% of the studies, respectively). Only a few studies examining BMI (2.7%), physical activity (6.8%), and attitudes towards physical activity (12.5%) revealed negative effects, with better results observed for the control group. Intervention effects were influenced by the students’ age, intervention type, and frequency of the interventions. Self-efficacy was found to mediate the relationship between the program and the students’ physical activity.

Conclusions

Numerous school-based physical activity interventions achieved positive effects on three target levels. Further research is needed to clarify the mediator effects of psychological variables on physical activity and health and to increase our knowledge about the mechanisms that underlie behavioural change.