A common mechanism underlying food choice and social decisions

Krajbich, Ian; Hare, Todd; Bartling, Björn; Morishima, Yosuke; Fehr, Ernst (2015). A common mechanism underlying food choice and social decisions. PLoS computational biology, 11(10), e1004371. Public Library of Science 10.1371/journal.pcbi.1004371

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People make numerous decisions every day including perceptual decisions such as walking through a crowd, decisions over primary rewards such as what to eat, and social decisions that require balancing own and others’ benefits. The unifying principles behind choices in various domains are, however, still not well understood. Mathematical models that describe choice behavior in specific contexts have provided important insights into the computations that may underlie decision making in the brain. However, a critical and largely unanswered question is whether these models generalize from one choice context to another. Here we show that a model adapted from the perceptual decision-making domain and estimated on choices over food rewards accurately predicts choices and reaction times in four independent sets of subjects making social decisions. The robustness of the model across domains provides behavioral evidence for a common decision-making process in perceptual, primary reward, and social decision making.

Item Type:

Journal Article (Original Article)

Division/Institute:

04 Faculty of Medicine > University Psychiatric Services > University Hospital of Psychiatry and Psychotherapy > Psychiatric Neurophysiology (discontinued)
04 Faculty of Medicine > University Psychiatric Services > University Hospital of Psychiatry and Psychotherapy

UniBE Contributor:

Morishima, Yosuke

Subjects:

100 Philosophy > 150 Psychology
600 Technology > 610 Medicine & health

ISSN:

1553-734X

Publisher:

Public Library of Science

Language:

English

Submitter:

Yosuke Morishima

Date Deposited:

07 Jan 2016 15:31

Last Modified:

07 Jan 2016 15:31

Publisher DOI:

10.1371/journal.pcbi.1004371

PubMed ID:

26460812

BORIS DOI:

10.7892/boris.74520

URI:

https://boris.unibe.ch/id/eprint/74520

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