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Decision Making, Affect, and LearningAttention and Performance XXIII$
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Mauricio R. Delgado, Elizabeth A. Phelps, and Trevor W. Robbins

Print publication date: 2011

Print ISBN-13: 9780199600434

Published to Oxford Scholarship Online: May 2011

DOI: 10.1093/acprof:oso/9780199600434.001.0001

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PRINTED FROM OXFORD SCHOLARSHIP ONLINE (oxford.universitypressscholarship.com). (c) Copyright Oxford University Press, 2021. All Rights Reserved. An individual user may print out a PDF of a single chapter of a monograph in OSO for personal use. date: 08 December 2021

Multiple neural circuits in value-based decision making

Multiple neural circuits in value-based decision making

(p.173) Chapter 8 Multiple neural circuits in value-based decision making
Decision Making, Affect, and Learning

Manami Yamamoto

Xiaochuan Pan

Kensaku Nomoto

Masamichi Sakagami

Oxford University Press

Valuation is an essential process and function in decision making. The variety and organization of such valuation systems characterize the decision making of animals. To understand the nature of the distinct neural systems used in such valuation, monkey single-unit recording experiments were performed together with a human fMRI experiment using a perceptual discrimination task with asymmetric reward, and a reward inference task. The results suggest that both the primate and human brain have, at least, two distinct valuation systems: one in the nigro-striatal circuit (here, referred to as the ‘stimulus-based valuation system’) and the other in the prefrontal cortex (PFC) circuit (here, referred to as the ‘knowledge-based valuation system’). The nigro-striatal circuit calculates values based on the empirical and probabilistic relation between an event and its outcome. The PFC circuit, on the other hand, generates values by further extension of directly-experienced association through categorical processes and rules, thereby enabling animals to predict the outcome of an inexperienced event.

Keywords:   valuation, decision making, primate brain, human brain, valuation systems, nigro-striatal circuit, prefrontal cortex

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