Sleep Deprivation Alters Valuation Signals in the Ventromedial Prefrontal Cortex

Libedinsky, Camilo and Smith, David V. and Teng, Chieh Schen and Namburi, Praneeth and Chen, Vanessa W. and Huettel, Scott A. and Chee, Michael W. L. (2011) Sleep Deprivation Alters Valuation Signals in the Ventromedial Prefrontal Cortex. Frontiers in Behavioral Neuroscience, 5. ISSN 1662-5153

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Abstract

Even a single night of total sleep deprivation (SD) can have dramatic effects on economic decision making. Here we tested the novel hypothesis that SD influences economic decisions by altering the valuation process. Using functional magnetic resonance imaging we identified value signals related to the anticipation and the experience of monetary and social rewards (attractive female faces). We then derived decision value signals that were predictive of each participant’s willingness to exchange money for brief views of attractive faces in an independent market task. Strikingly, SD altered decision value signals in ventromedial prefrontal cortex (VMPFC) in proportion to the corresponding change in economic preferences. These changes in preference were independent of the effects of SD on attention and vigilance. Our results provide novel evidence that signals in VMPFC track the current state of the individual, and thus reflect not static but constructed preferences.

Item Type: Article
Subjects: Souths Book > Biological Science
Depositing User: Unnamed user with email support@southsbook.com
Date Deposited: 22 Mar 2023 09:40
Last Modified: 07 Sep 2024 10:52
URI: http://research.europeanlibrarypress.com/id/eprint/376

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