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Behav Brain Res. 2011 Dec 1;225(2):455-63. doi: 10.1016/j.bbr.2011.08.003. Epub 2011 Aug 6.

A reverse translational approach to quantify approach-avoidance conflict in humans.

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  • 1Department of Psychiatry, University of California-San Diego, 9500 Gilman Drive, MC: 0603 La Jolla 92093-0603, CA, USA. aupperler@umkc.edu


Animal approach-avoidance conflict paradigms have been used extensively to characterize effects of anxiolytic agents and probe neural circuitry related to anxiety. However, there are few behavioral approaches to measure conflict in human populations, limiting the translation of findings from animal conflict tasks to human clinical research. We developed a novel approach-avoidance conflict (AAC) paradigm involving situations in which the same decision is associated with "reward" (points) and "punishment" (negative affective stimuli). The AAC task was completed by 95 young adults (56 female) with varying levels of self-reported trait anxiety. As expected, conflict-related approach behavior correlated with self-reported motivation to approach reward and avoid punishment and greater reward level increased approach behavior. Additionally, females exhibited less approach behavior than males. Anxiety Sensitivity Index (Physical subscale) scores related negatively to approach behavior for males, while Behavioral Activation Scale (BAS, Fun Seeking subscale) scores related positively to approach behavior for females. Results support the utility of the AAC task as a behavioral test that has strong reverse translational features. Findings indicate that approach drives and anxiety sensitivity may be important in determining conflict behavior for females and males respectively. The approach-avoidance conflict task offers a novel, translational measure to probe neural systems underlying conflict behavior, motivational processes, and anxiety disorders.

Copyright © 2011 Elsevier B.V. All rights reserved.

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