Publications (10) View all
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Article: Behavioral Approach System (BAS) Sensitivity and Bipolar Spectrum Disorders: A Retrospective and Concurrent Behavioral High-Risk Design
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ABSTRACT: In this article, we tested the vulnerability hypothesis of the behavioral approach system (BAS) hypersensitivity model of bipolar disorders. We examined whether self-reported BAS sensitivity predicts lifetime bipolar spectrum diagnoses as well as symptoms and personality characteristics associated with bipolar disorder using a retrospective and concurrent behavioral high-risk design. Participants with high (HBAS; n=28) or moderate (MBAS; n=24) BAS sensitivity were selected and given a lifetime psychiatric diagnostic interview and self-report measures of proneness to bipolar symptoms, current symptoms, and personality characteristics relevant to bipolarity. HBAS participants were significantly and substantially more likely to have a lifetime bipolar spectrum disorder diagnosis than were MBAS participants, but did not differ from MBAS participants in their likelihood of a unipolar depression diagnosis. Also, the HBAS group exhibited higher impulsivity and proneness to hypomanic symptoms than the MBAS group, and BAS-reward responsiveness predicted hypomanic personality characteristics. Finally, high behavioral inhibition system (BIS) sensitivity was associated with proneness to and current depressive symptoms.Motivation and Emotion 04/2012; 30(2):143-155. · 1.23 Impact Factor -
Article: Moderating effects of aggression on the associations between social withdrawal subtypes and peer difficulties during early adolescence.
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ABSTRACT: Recent research has revealed significant heterogeneity in the peer difficulties associated with social withdrawal subtypes during early adolescence, but little is known about possible sources of that heterogeneity. This study of 194 Indian young adolescents (48% female; 90% Hindu; M age= 13.35 years) evaluated whether the peer adversity related to self-reported social withdrawal subtypes (shyness, unsociability, avoidance) varied as a function of peer-nominated overt and relational aggression, and gender. Regression analyses revealed that overt aggression and gender moderated the pathways between shyness and peer exclusion and peer victimization such that the associations were significant and positive only for boys who were high and girls who were low in overt aggression. Several additional moderator effects were found, including results revealing that relational aggression (in certain cases, in conjunction with gender) moderated the association between: (1) avoidance and peer exclusion and peer rejection, (2) shyness and peer rejection, and (3) unsociability and peer victimization. For adolescents who were average and low in relational aggression, avoidance was positively related to peer rejection, and unsociability was positively related to peer victimization. However, only for boys who were high in relational aggression, avoidance was found to be positively related to peer exclusion, and shyness was positively related to peer rejection. The findings highlight the importance of considering additional individual risk factors in studies of social withdrawal subtypes and point to important differences for young adolescent withdrawn boys and girls.Journal of Youth and Adolescence 08/2011; 41(8):995-1007. · 2.72 Impact Factor -
Article: Assessing dependency using self-report and indirect measures: examining the significance of discrepancies.
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ABSTRACT: The present study addressed convergence between self-report and indirect approaches to assessing dependency. We were moderately successful in validating an implicit measure, which was found to be reliable, orthogonal to 2 self-report instruments, and predictive of external criteria. This study also examined discrepancies between scores on self-report and implicit measures, and has implications for their significance. The possibility that discrepancies themselves are pathological was not supported, although discrepancies were associated with particular personality profiles. Finally, this study offered additional evidence for the relation between dependency and depressive symptomatology and identified implicit dependency as contributing unique variance in predicting past major depression.Journal of Personality Assessment 07/2010; 92(4):306-16. · 1.29 Impact Factor -
Article: Repetitive Thought in Psychopathology: The Relation of Rumination and Worry to Depression and Anxiety Symptoms
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ABSTRACT: The relation between repetitive thought and depression and anxiety symptoms was examined in an undergraduate sample. Individuals completed self-report measures of rumination, worry, depression, and anxiety as well as other related constructs including private self-consciousness, looming maladaptive style, cognitive style, cognitive content, and future outlook. Regression analyses and tests for significant differences between partial correlations were utilized to assess the study hypotheses. The results indicated that rumination and worry overlap in their association with depression and anxiety symptoms, and that rumination may be an especially important component of this overlap. Secondary analyses demonstrated that rumination and worry are two distinct constructs, as their patterns of associations with related constructs were different.Journal of Cognitive Psychotherapy 07/2008; 22(3):271-288. -
Article: Behavioral Approach System and Behavioral Inhibition System sensitivities and bipolar spectrum disorders: prospective prediction of bipolar mood episodes.
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ABSTRACT: Research has found that bipolar spectrum disorders are associated with Behavioral Approach System (BAS) hypersensitivity and both unipolar and bipolar depression are associated with high Behavioral Inhibition System (BIS) sensitivity, but prospective studies of these relationships are lacking. We tested whether BAS and BIS sensitivities prospectively predicted the time to new onsets of major depressive and hypomanic and manic episodes in bipolar spectrum individuals. We followed 136 bipolar II or cyclothymic and 157 demographically matched normal control individuals prospectively for an average of 33 months. Participants completed the BIS/BAS scales and symptom measures at Time 1 and semi-structured diagnostic interviews every four months of follow-up. The bipolar spectrum group exhibited higher Time 1 BAS, but not BIS, scores than the normal controls, controlling for Time 1 symptoms. Among bipolar spectrum participants, high BAS sensitivity prospectively predicted a shorter time to onset of hypomanic and manic episodes, whereas high BIS sensitivity predicted less survival time to major depressive episodes, controlling for initial symptoms. Consistent with the BAS hypersensitivity model of bipolar disorder, a highly responsive BAS provides vulnerability to onsets of (hypo)manic episodes. In addition, a highly sensitive BIS increases risk for major depressive episodes.Bipolar Disorders 04/2008; 10(2):310-22. · 5.29 Impact Factor
