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Decision Making, Affect, and Learning$
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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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ContentsFRONT MATTER

The striatum and beyond: contributions of the hippocampus to decision making

Chapter:
(p.281) Chapter 13 The striatum and beyond: contributions of the hippocampus to decision making
Source:
Decision Making, Affect, and Learning
Author(s):

G. Elliott Wimmer

Daphna Shohamy

Publisher:
Oxford University Press
DOI:10.1093/acprof:oso/9780199600434.003.0013

This chapter reviews existing data regarding the role of the hippocampus and the striatum in learning, and their modulation by dopamine, in order to provide a broader understanding of how learning guides decision making. In particular, it suggests that, while the striatum supports decisions based on gradual stimulus-response learning, the hippocampus supports decisions that depend upon episodic, contextual information and mnemonic flexibility. It describes an experiment with a novel paradigm that investigates the role of hippocampal-dependent memory processes in decision making, and demonstrates that representational processes characteristic of episodic memory emerge in the context of a reward-based decision-making task.

Keywords:   hippocampus, striatum, learning, dopamine, decision making, representational process, memory

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