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The functioning of the Behavioral Activation and Inhibition Systems in bipolar I euthymic patients and its influence in subsequent episodes over an eighteen-month period

Salavert, José, Caseras, Xavier, Torrubia, Rafael, Furest, Sandra, Arranz, Belén, Dueñas, Rosa and San, Luis 2007. The functioning of the Behavioral Activation and Inhibition Systems in bipolar I euthymic patients and its influence in subsequent episodes over an eighteen-month period. Personality and Individual Differences 42 (7) , pp. 1323-1331. 10.1016/j.paid.2006.10.010

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Abstract

In order to better understand individual vulnerabilities to bipolar I disorder, this study evaluates individual differences in Behavioral Activation and Inhibition Systems as possible markers of bipolar I disorder. BAS and BIS functioning was evaluated in 39 bipolar I euthymic patients and in 38 controls. Patients showed higher scores on the BAS scale; differences were not detected on the BIS scale. Eighteen months post-initial assessment, patients were re-grouped according to the presence and type of new episodes. Patients relapsing with a depressive episode showed lower scores on the BAS scale than patients suffering from a manic/hypomanic episode, and a tendency to score lower than patients still asymptomatic. Reported higher BAS functioning would reinforce the hypothesis of a trait vulnerability to present approach behaviors during euthymia associated with bipolar I disorder, not necessarily related to the proximity of a manic/hypomanic episode, and interestingly not detected when approaching a depressive episode, circumstance in which BAS functioning would be similar to controls. Results did not reveal a weaker BIS in patients, hypothesized to account for BAS instability in bipolar I disorder.

Item Type: Article
Date Type: Publication
Status: Published
Schools: Medicine
MRC Centre for Neuropsychiatric Genetics and Genomics (CNGG)
Subjects: B Philosophy. Psychology. Religion > BF Psychology
R Medicine > RC Internal medicine > RC0321 Neuroscience. Biological psychiatry. Neuropsychiatry
Uncontrolled Keywords: Bipolar I disorder; Behavioral activation system; Behavioral inhibition system; BAS; BIS
Publisher: Elsevier
ISSN: 0191-8869
Last Modified: 04 Jun 2017 06:25
URI: http://orca.cf.ac.uk/id/eprint/59918

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