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Arbitration between controlled and impulsive choices
Stockholm University, Faculty of Social Sciences, Aging Research Center (ARC), (together with KI). University College London, United Kingdom.
2015 (English)In: NeuroImage, ISSN 1053-8119, E-ISSN 1095-9572, Vol. 109, 206-216 p.Article in journal (Refereed) Published
Abstract [en]

The impulse to act for immediate reward often conflicts with more deliberate evaluations that support long-term benefit. The neural architecture that negotiates this conflict remains unclear. One account proposes a single neural circuit that evaluates both immediate and delayed outcomes, while another outlines separate impulsive and patient systems that compete for behavioral control. Here we designed a task in which a complex payout structure divorces the immediate value of acting from the overall long-term value, within the same outcome modality. Using model-based fMRI in humans, we demonstrate separate neural representations of immediate and long-term values, with the former tracked in the anterior caudate (AC) and the latter in the ventromedial prefrontal cortex (vmPFC). Crucially, when subjects' choices were compatible with long-run consequences, value signals in AC were down-weighted and those in vmPFC were enhanced, while the opposite occurred when choice was impulsive. Thus, our data implicate a trade-off in value representation between AC and vmPFC as underlying controlled versus impulsive choice.

Place, publisher, year, edition, pages
2015. Vol. 109, 206-216 p.
Keyword [en]
Decision-making, fMRI, Self-control, Value, Ventromedial prefrontal cortex, Striatum
National Category
Neurosciences
Identifiers
URN: urn:nbn:se:su:diva-115971DOI: 10.1016/j.neuroimage.2014.12.071ISI: 000349971600020PubMedID: 25573670OAI: oai:DiVA.org:su-115971DiVA: diva2:805470
Note

AuthorCount:4;

Available from: 2015-04-15 Created: 2015-04-08 Last updated: 2017-12-04Bibliographically approved

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CiteExportLink to record
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Citation style
  • apa
  • ieee
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  • de-DE
  • en-GB
  • en-US
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  • nn-NO
  • nn-NB
  • sv-SE
  • Other locale
More languages
Output format
  • html
  • text
  • asciidoc
  • rtf