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Value Conditioning Modulates Visual Working Memory Processes

Thomas, P.M.J. and FitzGibbon, L. and Raymond, J.E. (2015) Value Conditioning Modulates Visual Working Memory Processes. Journal of Experimental Psychology-Human Perception and Performance, 42 (1). pp. 6-10. DOI: 10.1037/xhp0000144

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Abstract

Learning allows the value of motivationally salient events to become associated with stimuli that predict those events. Here, we asked whether value associations could facilitate visual working memory (WM), and whether such effects would be valence dependent. Our experiment was specifically designed to isolate value-based effects on WM from value-based effects on selective attention that might be expected to bias encoding. In a simple associative learning task, participants learned to associate the color of tinted faces with gaining or losing money or neither. Tinted faces then served as memoranda in a face identity WM task for which previously learned color associations were irrelevant and no monetary outcomes were forthcoming. Memory was best for faces with gain-associated tints, poorest for faces with loss-associated tints, and average for faces with no-outcome-associated tints. Value associated with 1 item in the WM array did not modulate memory for other items in the array. Eye movements when studying faces did not depend on the valence of previously learned color associations, arguing against value-based biases being due to differential encoding. This valence-sensitive value-conditioning effect on WM appears to result from modulation of WM maintenance processes

Item Type: Article
Subjects: Research Publications
Departments: College of Health and Behavioural Sciences > School of Psychology
Date Deposited: 28 Jan 2016 03:11
Last Modified: 28 Jan 2016 03:11
ISSN: 0096-1523
URI: http://e.bangor.ac.uk/id/eprint/6174
Identification Number: DOI: 10.1037/xhp0000144
Publisher: American Psychological Association
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