The use of perceptual features in categorization by orangutans (<Emphasis Type="Italic">Pongo abelli</Emphasis>)

The extent to which categorization of natural classes in animals reflects a generalization based on perceptual similarity versus an abstract conceptual representation remains unclear. Here, two experiments were conducted to identify the perceptual features used by orangutans when categorizing pictures. In Experiment 1, subjects were trained and tested for transfer on a concrete discrimination (gorillas or orangutans vs. other primates). Analysis of performance on both positive and negative exemplars revealed that performance was best on photos with faces, particularly close-ups. Moreover, error trials did not seem to reflect instances of mistaken identity, but rather, exemplars that may have been distracting for other reasons, such as novel coloration or morphology. In Experiment 2, photos were modified to test the effects of various features. Color modifications caused the biggest decrease in performance, and eye modifications also affected performance deleteriously. Therefore, two perceptual features, namely eye regions and color, played a key role in subjects' ability to categorize. However, performance based on an underlying concept cannot be ruled out, because both of these features are highly relevant in terms of defining category membership. Although a subset of features was identified as playing a key role in categorization, these features differed depending on whether feature-use was studied indirectly, as in Experiment 1, or directly, as in Experiment 2.     

A Model of Therapist Competencies for the Empirically Supported Cognitive Behavioral Treatment of Child and Adolescent Anxiety and Depressive Disorders

While a plethora of cognitive behavioral empirically supported treatments (ESTs) are available for treating child and adolescent anxiety and depressive disorders, research has shown that these are not as effective when implemented in routine practice settings. Research is now indicating that is partly due to ineffective EST training methods, resulting in a lack of therapist competence. However, at present, the specific competencies that are required for the effective implementation of ESTs for this population are unknown, making the development of more effective EST training difficult. This study therefore aimed to develop a model of therapist competencies for the empirically supported cognitive behavioral treatment of child and adolescent anxiety and depressive disorders using a version of the well-established Delphi technique. In doing so, the authors: (1) identified and reviewed cognitive behavioral ESTs for child and adolescent anxiety and depressive disorders, (2) extracted therapist competencies required to implement each treatment effectively, (3) validated these competency lists with EST authors, (4) consulted with a panel of relevant local experts to generate an overall model of therapist competence for the empirically supported cognitive behavioral treatment of child and adolescent anxiety and depressive disorders, and (5) validated the overall model with EST manual authors and relevant international experts. The resultant model offers an empirically derived set of competencies necessary for effectively treating children and adolescents with anxiety and depressive disorders and has wide implications for the development of therapist training, competence assessment measures, and evidence-based practice guidelines for working with this population. This model thus brings us one step closer to bridging the gap between science and practice when treating child and adolescent anxiety and depression.     

Exposure to Media Images of Female Attractiveness and Concern with Body Weight Among Young Women1

Despite the popular belief that the thinstandard of female attractiveness currently presented inthe media is a primary contributor to the high level ofconcern with body weight among women, experimental studies have not shown that exposure to mediaimages increases women's weight concern. Threeexperiments are reported demonstrating that exposure tomedia images does often result in increased weightconcern among women, but that body dissatisfaction, astable personality characteristic, is a moderator ofvulnerability to this effect. Although most womenreported higher weight concern when exposed to media vs. neutral images, women with low initial bodydissatisfaction did not. In addition, this researchsuggests that negative effects on weight concern mayresult from even passive exposure to media images, but that exposure to realistic attractivenessis less likely to cause increased weight concern. Theethnicity of the participants in these studies reflectedthat of the local population, with over 90% white. The nonwhite participants primarily belonged toone of the following groups; Asian, Pacific Islander,Latino.     

In genes we trust: the biological component of psychological essentialism and its relationship to mechanisms of motivated social cognition

Three studies analyzed the biological component of psychological essentialism (laypeople's belief that social categories have an underlying nature/natural foundation) as it pertains to mechanisms of motivated social cognition. A new scale assessing the belief in genetic determinism is introduced as a measure of the biological component of essentialism. Results speak to the reliability and validity of the scale and show that essentialist beliefs are associated with basic social-cognitive motives and are also related to processes of stereotyping and prejudice. An experimental study found that rendering essentialist information salient elicits increased levels of prejudice and in-group bias, particularly in persons holding chronic essentialist beliefs.     

Regulatory fit and persuasion: transfer from "Feeling Right."

The authors propose that when a message recipient "feels right" from regulatory fit (E. T. Higgins, 2000), this subjective experience transfers to the persuasion context and serves as information for relevant evaluations, including perceived message persuasiveness and opinions of the topic. Fit was induced either by strategic framing of message arguments in a way that fit/did not fit with the recipient's regulatory state or by a source unrelated to the message itself. Across 4 studies, regulatory fit enhanced perceived persuasiveness and opinion ratings. These effects were eliminated when the correct source of feeling right was made salient before message exposure, supporting the misattribution account. These effects reversed when message-related thoughts were negative, supporting the claim that fit provides information about the "rightness" of one's (positive or negative) evaluations.     

Negative Affectivity, Social Support, and the Prediction of Depression and Distress

ABSTRACT In the work we present in this article, we examined the contaminating effects of trait negative affectivity (TNA) on the relations between social support and psychological distress among college undergraduates. In the first study, it was suspected that controlling for TNA would substantially alter the associations between social support (as measured by the Social Provisions Scale) and depression at the initial assessment and later with negative mood prior to a course examination. Actual results from cross-sectional hierarchical regression analyses revealed that controlling for TNA reduced-but did not nullify-associations between reassurance of worth support and depression. TNA did not mediate the relation of reliable alliance support to state NA measured 2 weeks later prior to a course examination. Finally, a second study controlling for TNA found reassurance of worth support remained a significant prospective predictor of depression during the week of final examinations. Results are integrated with theoretical and measurement issues in social support research.     

Comparison of DSM-III-R chronic major depression and major depression superimposed on dysthymia (double depression): validity of the distinction

The nosology of chronic depression has become increasingly complex since the publication of the revised third edition of the Diagnostic and Statistical Manual of Mental Disorders (DSM-III-R; American Psychiatric Association, 1987), but there are few data available to evaluate the validity of the distinctions between the subtypes of chronic depression. The validity of the distinction between DSM-III-R chronic major depression (CMD) and major depression superimposed on dysthymia (double depression, DD) was examined. Participants were 635 patients with chronic depression in a 12-week trial of antidepressant medications. Patients with CMD, DD, and a 3rd group with a chronic major depressive episode superimposed on dysthymia (DD/CMD) were compared on demographic and clinical characteristics, family history, and response to treatment. Few differences were evident, although the depression of patients with DD/CMD tended to be more severe.     

Equating tasks and sustaining attention in children and adults: the methodological and theoretical utility of d' matching

The present study develops a method to create task equivalency for children and adults in vigilance research. Experiment 1 employed the signal detection index of perceptual sensitivity (d') to calibrate vigilance tasks for 32 children (ages 7-8) and 32 adults. The results of Experiment 1 suggest that task equivalency across groups can be attained, and a vigilance decrement was observed for children. In Experiment 2, the task parameter of event rate was manipulated across two vigils. Again, 32 children (ages 7-8) and 32 adults participated. The results suggest that a reverse event rate effect emerged for both children and adults. In addition, developmental differences in response to the event rate manipulation and with respect to the vigilance decrement emerged: Children benefited less from the manipulation and were more likely to demonstrate a vigilance decrement than were adults. No developmental differences emerged for the sensitivity decrement. The results are explained with reference to how task demands interact with participant arousal, and implications for development and for future research are discussed.     

Psychological factors in deliberate self-harm as seen in a urban African population in Uganda: a case-control study

Psychological factors associated with deliberate self-harm (DSH) as seen in an African population in Uganda are described. A case-control study design was employed in which a Luganda version (predominant language in the study area) of the modified European Parasuicide Interview Schedule I (EPSIS I) was used to collect data. The controls were patients admitted to the participating hospitals for non-recurrent medical conditions. Hopelessness, global psychological distress, and state anger, but not depression, were significantly associated with DSH after controlling for other factors. Both depression and hopelessness were significantly associated with suicidal intent independent of each other. Differences were observed on the psychological factors associated with suicidal intent in the different age/sex groups and in the depressed/nondepressed group. Interventions for DSH in this population should include treatments for both depression and hopelessness. This study further raises questions about the universality of the structural relationship among depression, hopelessness, and suicidality.