Prejudice and Racism,Year 2008—Still Going Strong: Research on Reducing Prejudice With Recommended Methodological Advances

This article addresses the origins, mechanisms, and expressions of prejudice. A selective review of research finds strong support for the validity of G. W. Allport's (1954) contact hypothesis conditions in reducing prejudice. Methodological advances in the study of prejudice are reviewed, and implications of research findings for counselors are explored.     

Dual language use in sign-speech bimodal bilinguals: fNIRS brain-imaging evidence

The brain basis of bilinguals’ ability to use two languages at the same time has been a hotly debated topic. On the one hand, behavioral research has suggested that bilingual dual language use involves complex and highly principled linguistic processes. On the other hand, brain-imaging research has revealed that bilingual language switching involves neural activations in brain areas dedicated to general executive functions not specific to language processing, such as general task maintenance. Here we address the involvement of language-specific versus cognitive-general brain mechanisms for bilingual language processing. We study a unique population, bimodal bilinguals proficient in signed and spoken languages, and we use an innovative brain-imaging technology, functional Near-Infrared Spectroscopy (fNIRS; Hitachi ETG-4000). Like fMRI, the fNIRS technology measures hemodynamic change, but it is also advanced in permitting movement for unconstrained speech and sign production. Participant groups included (i) hearing ASL–English bilinguals, (ii) ASL monolinguals, and (iii) English monolinguals. Imaging tasks included picture naming in “Monolingual mode” (using one language at a time) and in “Bilingual mode” (using both languages either simultaneously or in rapid alternation). Behavioral results revealed that accuracy was similar among groups and conditions. By contrast, neuroimaging results revealed that bilinguals in Bilingual mode showed greater signal intensity within posterior temporal regions (“Wernicke’s area”) than in Monolingual mode. Significance: Bilinguals’ ability to use two languages effortlessly and without confusion involves the use of language-specific posterior temporal brain regions. This research with both fNIRS and bimodal bilinguals sheds new light on the extent and variability of brain tissue that underlies language processing, and addresses the tantalizing questions of how language modality, sign and speech, impact language representation in the 7brain.     

Using movement and intentions to understand human activity

During perception, people segment continuous activity into discrete events. They do so in part by monitoring changes in features of an ongoing activity. Characterizing these features is important for theories of event perception and may be helpful for designing information systems. The three experiments reported here asked whether the body movements of an actor predict when viewers will perceive event boundaries. Body movements were recorded using a magnetic motion tracking system and compared with viewers’ segmentation of his activity into events. Changes in movement features were strongly associated with segmentation. This was more true for fine-grained than for coarse-grained boundaries, and was strengthened when the stimulus displays were reduced from live-action movies to simplified animations. These results suggest that movement variables play an important role in the process of segmenting activity into meaningful events, and that the influence of movement on segmentation depends on the availability of other information sources.     

Examining Implementation Intentions in an Exercise Intervention: The Effects on Adherence and Self‐Efficacy in a Naturalistic Setting1

Some studies have found positive associations between implementation intentions and exercise, independent of motivational factors. However, most research has not been conducted in actual exercise contexts. In a naturalistic setting, implementation intentions may be associated with self‐efficacy (SE) beliefs. This study examined the effect of implementation intentions on adherence and SE over an 11‐week exercise program. Women (N = 72) were randomly assigned to an experimental (i.e., implementation intention) or a control group, with 52 participants completing the study. Results showed that while adherence decreased over time in both groups, the experimental group had better adherence than did the control group. Scheduling SE was also higher in the experimental group. Implementation intentions may help to maintain adherence and scheduling SE.     

Learning More About Those Who Play in Session: The National Play Therapy in Counseling Practices Project (Phase I)

Through a joint research committee sponsored by the Association for Play Therapy (APT) and the American Counseling Association (ACA), The National Play Therapy in Counseling Practices Project conducted the first phase of investigation. Findings offered a snapshot of mental health providers of play therapy, regarding the nature of who they are and what they do. In terms of training, play modalities, theoretical orientation, and employment setting, comparisons were made based on membership of participants in ACA or APT. Further research was suggested to examine the effectiveness of play therapy with specific therapeutic issues.     

If you feel bad, it's unfair: a quantitative synthesis of affect and organizational justice perceptions

Whereas research interest in both individual affect/temperament and organizational justice has grown substantially in recent years, affect's role in the perception of organizational justice has received scant attention. Here, the authors integrate these literatures and test bivariate relationships between state affect (e.g., moods), trait affect (e.g., affectivity), and organizational justice variables using meta-analytically aggregated effect sizes. Results indicated that state and trait positive and negative affect exhibit statistically significant relationships with perceptions of distributive, procedural, and interactional justice in the predicted directions, with mean population-level correlations ranging in absolute magnitude from M(rho) = .09 to M(rho) = .43. Correlations involving state affect generally were larger but not significantly different from those involving trait affect. Finally, the authors propose ideas for investigations at the primary-study level.     

Vitamins, minerals, and mood

In this article, the authors explore the breadth and depth of published research linking dietary vitamins and minerals (micronutrients) to mood. Since the 1920s, there have been many studies on individual vitamins (especially B vitamins and Vitamins C, D, and E), minerals (calcium, chromium, iron, magnesium, zinc, and selenium), and vitamin-like compounds (choline). Recent investigations with multi-ingredient formulas are especially promising. However, without a reasonable conceptual framework for understanding mechanisms by which micronutrients might influence mood, the published literature is too readily dismissed. Consequently, 4 explanatory models are presented, suggesting that mood symptoms may be expressions of inborn errors of metabolism, manifestations of deficient methylation reactions, alterations of gene expression by nutrient deficiency, and/or long-latency deficiency diseases. These models provide possible explanations for why micronutrient supplementation could ameliorate some mental symptoms.     

Heart rate variability as a physiological moderator of the relationship between race-related stress and psychological distress in African Americans

This study examined the moderator effects of heart rate variability, a physiological marker of stress vulnerability, on the relationship between race-related stress and psychological distress in African Americans (N = 215). Participants were administered the Index of Race-Related Stress-Brief and the Brief Symptom Inventory-18. Resting heart rate was recorded using the Polar 810s heart rate monitor. Findings indicated that heart rate variability moderated the relationship between institutional race-related stress and psychological distress for men, but not women. These findings suggest that higher levels of resting heart rate variability may buffer African Americans from the deleterious effects of race-related stress.