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ERIC Number: EJ784439
Record Type: Journal
Publication Date: 2008-Feb
Pages: 8
Abstractor: Author
Reference Count: 0
ISSN: ISSN-0278-2626
Working Memory Involved in Predicting Future Outcomes Based on Past Experiences
Dretsch, Michael N.; Tipples, Jason
Brain and Cognition, v66 n1 p83-90 Feb 2008
Deficits in working memory have been shown to contribute to poor performance on the Iowa Gambling Task [IGT: Bechara, A., & Martin, E.M. (2004). "Impaired decision making related to working memory deficits in individuals with substance addictions." "Neuropsychology," 18, 152-162]. Similarly, a secondary memory load task has been shown to impair task performance [Hinson, J., Jameson, T. & Whitney, P. (2002). "Somatic markers, working memory, and decision making." "Cognitive, Affective, & Behavioural Neuroscience," 2, 341-353]. In the present study, we investigate whether the latter findings were due to increased random responding [Franco-Watkins, A. M., Pashler, H., & Rickard, T. C. (2006). "Does working memory load lead to greater impulsivity? Commentary on Hinson, Jameson, and Whitney's (2003)." "Journal of Experimental Psychology: Learning, Memory & Cognition," 32, 443-447]. Participants were tested under Low Working Memory (LWM; n = 18) or High Working Memory (HWM; n = 17) conditions while performing the Reversed IGT in which punishment was immediate and reward delayed [Bechara, A., Dolan, S., & Hindes, A. (2002). "Decision making and addiction (part II): Myopia for the future or hypersensitivity to reward?" "Neuropsychologia," 40, 1690-1705]. In support of a role for working memory in emotional decision making, compared to the LWM condition, participants in the HWM condition made significantly greater number of disadvantageous selections than that predicted by chance. Performance by the HWM group could not be fully explained by random responding.
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Publication Type: Journal Articles; Reports - Research
Education Level: N/A
Audience: N/A
Language: English
Sponsor: N/A
Authoring Institution: N/A