Categorical perception of colour in the left and right visual field is verbally mediated: evidence from Korean

In this study we demonstrate that Korean (but not English) speakers show Categorical perception (CP) on a visual search task for a boundary between two Korean colour categories that is not marked in English. These effects were observed regardless of whether target items were presented to the left or right visual field. Because this boundary is unique to Korean, these results are not consistent with a suggestion made by Drivonikou [Drivonikou, G. V., Kay, P., Regier, T., Ivry, R. B., Gilbert, A. L., Franklin, A. et al. (2007) Further evidence that Whorfian effects are stronger in the right visual field than in the left. Proceedings of the National Academy of Sciences 104, 1097-1102] that CP effects in the left visual field provide evidence for the existence of a set of universal colour categories. Dividing Korean participants into fast and slow responders demonstrated that fast responders show CP only in the right visual field while slow responders show CP in both visual fields. We argue that this finding is consistent with the view that CP in both visual fields is verbally mediated by the left hemisphere language system.     

Evidence for positive mood buffering among college student drinkers

Positive experiences play an important role in buffering the effects of negative experiences. Although this process can play out in a myriad of contexts, the college context is one of particular importance because of significant concerns about student stress levels and alcohol abuse. Building on evidence that at least some students drink in response to negative experiences, we considered the possibility that positive moods would moderate college student negative mood-drinking relationships. Using a Web-based daily process study of 118 (57% women) undergraduate student drinkers, the authors reveal that positive moods indeed buffer the effects of negative moods on student drinking, depending on the mood and drinking context. Furthermore, the buffering of ashamed mood appears to explain the buffering of other negative moods. Implications of these findings are considered in terms of the relationship between negative self-awareness and drinking to cope.     

Categorical perception effects reflect differences in typicality on within-category trials

Many studies have shown better discrimination of two stimuli that cross a category boundary than of two stimuli belonging to the same category. This finding, known as categorical perception, is generally assumed to reflect consistently good performance on cross-category trials, relative to within-category trials. However, Roberson, D., Damjanovic, L., and Pilling, M. (Memory & Cognition, 35, 1814-1829, 2007) revealed that performance on within-category pairs of morphed facial expressions matched performance on cross-category trials when the target was a good exemplar of its category. Here, we investigate the generality of that finding by conducting new analyses of data from a series of studies of categorical perception in facial identity and color domains with speakers of different languages. Consistent with Roberson et al. (2007), the new analyses demonstrate that performance for central targets on within-category trials is as good as performance on cross-category trials. Participants perform badly on within-category items only when the target is closer to the category boundary than is the distractor. These results provide no support for the view that categorical perception is associated with increased perceptual sensitivity at category boundaries.     

In Our Lives and Under Our Skin: An Investigation of Specific Psychobiological Mediators Linking Family Relationships and Health Using the Biobehavioral Family Model

The objective of this study was to use the Biobehavioral Family Model (BBFM) to delineate which psychophysiological variables link romantic and family relationship satisfaction variables to health outcomes. Data from individuals who reported being partnered from the second wave of the National Survey of Midlife Development in the United States (MIDUS II), Project 4 (n = 812) were used to test a structural equation model which explored which psychophysiological variables potentially mediated associations between positive and negative family emotional climate variables and disease activity. This model found that current and past family variables had larger associations with the psychophysiological variables than romantic partner variables; depressive symptoms, anxiety, and inflammation partially mediated associations between family relationships and health; and, contrary to the hypotheses, romantic partner and family support were linked to worse health outcomes. However, the findings should be viewed with regard to the cross‐sectional design of the study. Overall, the findings support the use of the BBFM as a model that can guide clinical interventions.     

Examining How Romantic Relationship Quality Influences Individual Psychological Distress Over Time for Men and Women

Poor relationship quality can increase an individual’s psychological distress. There is substantial debate regarding the influence of relationship quality for men and women. Some have found that women’s psychological distress is affected more by poor relationship quality compared to men. Others have found that psychological distress is equally affected for men and women, but it may look different—depressive symptoms for women and total alcohol consumption for men. In this study we examined how men and women differed in changes in relationship quality and changes in psychological distress. Then, we examined how changes in one manifestation of psychological distress and changes in relationship quality were related and how this association differed for men and women. Women reported lower initial relationship quality and total alcohol consumption but higher initial depressive symptoms. Men and women only differed on changes in total alcohol consumption, with women decreasing less than men over 25 years. Finally, both changes in total alcohol consumption and changes in depressive symptoms were related to changes in relationship quality for women, but not men. The reverse direction did not differ by gender, although change in depressive symptoms was related to change in relationship quality. Implications for future research are discussed.     

The View from Inside the System: How Police Explain Their Response to Sexual Assault

Prior research has documented the problematic community response to sexual assault: the majority of sexual assaults reported to police are never prosecuted. Social dominance theory suggests that this response is a form of institutional discrimination, intended to maintain existing social structures, and that police personnel likely draw upon shared ideologies to justify their decision‐making in sexual assault case investigations. This study drew upon social dominance theory to examine how police justified their investigatory decisions to identify potential leverage points for change. The study revealed that the likelihood of a case referral to the prosecutor increased with each additional investigative step completed; of the different types of justifications provided by police for a less‐than‐thorough investigative response and stalled case, blaming the victim for the poor police investigation proved to be the most damaging to case progression; and the type of explanation provided by police was impacted by specific case variables. As suggested by social dominance theory, the study demonstrates that police rely on several different mechanisms to justify their response to sexual assault; implementing criminal justice system policies that target and interrupt these mechanisms has the potential to improve this response, regardless of specific case factors.     

Categorical perception of facial expressions: Evidence for a “category adjustment” model

Four experiments probed the nature of categorical perception (CP) for facial expressions. A model based on naming alone failed to accurately predict performance onthese tasks. The data are instead consistentwith an extension of the category adjustment model (Huttenlocher et al., 2000), in which the generation of a verbal code (e.g., "happy") activated knowledge ofthe expression category's range andcentral tendency (prototype) in memory, which was retained as veridical perceptual memory faded.Further support for amemory bias toward the category center came from a consistently asymmetric pattern of within-category errors. Verbal interference in the retention interval selectively removed CP for facial expressions, under blocked, but not under randomized presentation conditions. However, verbal interference at encoding removed CPeven under randomized conditions and these effects were shown to extend even to caricatured expressions, which lie outside the normal range of expression categories.     

Race-Based Stress in White Adults: Exploring the Role of White Racial Identity Status Attitudes and Type of Racial Events

The impact of racial experiences on Whites has been underresearched and has rarely been considered traumatic. To understand these experiences, it is important to consider variation in one's orientation to their racial group (i.e., racial identity) and the type of racial encounter. Using a White adult sample and hierarchical cluster analysis, the authors found that reactions to race-based encounters were associated with varying levels of psychological distress and well-being and racial identity statuses. Clinical implications are discussed. El impacto de las experiencias raciales en personas blancas no ha sido suficientemente investigado y en raras ocasiones ha sido considerado traumático. Para comprender estas experiencias, es importante considerar la variación en la orientación de cada individuo hacia su grupo racial (es decir, la identidad racial) y el tipo de encuentro racial. Usando una muestra de personas adultas blancas y un análisis jerárquico de clústeres, los autores hallaron que las reacciones a los encuentros raciales estaban asociadas a niveles variables de malestar psicológico, así como de estados de bienestar e identidad racial.     

Get healthy to marry or marry to get healthy?

This study tested selection and causal effects on the marriage‐health link by analyzing predictors of mortality through body mass index (BMI) and chronic illnesses (CI) on emerging adults (EA; N = 302) who were followed biannually for 8 years from the Panel Study of Income Dynamics. Results showed EA with unhealthy BMI's are more likely to marry and improve their BMI after marrying, substantiating selection and causal effects. Only the selection effect was substantiated for CI, whereby White EAs with CI were less likely to marry. Marriage appears to benefit overall health for EA, as findings suggest improved health behaviors after marriage. Future research should assess what health behaviors change during marriage for EA and if they help CI management.