Document Detail

Affective biasing of choices in gambling task decision making.
MedLine Citation:
PMID:  17243355     Owner:  NLM     Status:  MEDLINE    
The proponents of the somatic marker hypothesis presume that rational decision making is guided by emotional reactions that are developed from prior experience. Supporting evidence for the hypothesis comes almost exclusively from the short-term affective reactions that are learned during the course of a hypothetical decision-making task--the gambling task (GT). We examined GT performance and affective reactions to choices when those choices were biased by words that had preexisting affective value. In one experiment, affectively valued words directly signaled good and bad choices. A congruent relation between affective value of word and choice outcome improved GT performance, whereas an incongruent relation greatly interfered with performance. In another experiment, affectively valued words were maintained as a working memory (WM) load between GT choices. A WM load with affectively positive words somewhat improved GT performance, whereas affectively negative words interfered with performance. Somatic markers-indicated by differential anticipatory skin conductance response (SCR) amplitude for good and bad choices-appeared at a point in the GT session when choice performance was superior. However, differential SCR developed during the session after good choice performance was already established. These results indicate that preexisting affective biases can influence GT decision making. In addition, the somatic markers that are regular accompaniments of GT decision making appeared to be temporally lagging indicators of choice performance.
John M Hinson; Paul Whitney; Heather Holben; Aaron K Wirick
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Publication Detail:
Type:  Journal Article    
Journal Detail:
Title:  Cognitive, affective & behavioral neuroscience     Volume:  6     ISSN:  1530-7026     ISO Abbreviation:  Cogn Affect Behav Neurosci     Publication Date:  2006 Sep 
Date Detail:
Created Date:  2007-01-24     Completed Date:  2007-03-02     Revised Date:  2011-02-24    
Medline Journal Info:
Nlm Unique ID:  101083946     Medline TA:  Cogn Affect Behav Neurosci     Country:  United States    
Other Details:
Languages:  eng     Pagination:  190-200     Citation Subset:  IM    
Department of Psychology, Washington State University, Pullman, WA 99164-4820, USA.
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MeSH Terms
Affect / physiology*
Analysis of Variance
Bias (Epidemiology)*
Choice Behavior / physiology*
Galvanic Skin Response / physiology
Reaction Time / physiology
Regression Analysis
Task Performance and Analysis

From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine

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