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Hippocampal Place FieldsRelevance to Learning and Memory$
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Sheri J. Y. Mizumori

Print publication date: 2008

Print ISBN-13: 9780195323245

Published to Oxford Scholarship Online: May 2008

DOI: 10.1093/acprof:oso/9780195323245.001.0001

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 Spatial Learning and the Selectivity of Hippocampal Place Fields: Modulation by Dopamine

 Spatial Learning and the Selectivity of Hippocampal Place Fields: Modulation by Dopamine

Chapter:
(p.271) 17 Spatial Learning and the Selectivity of Hippocampal Place Fields: Modulation by Dopamine
Source:
Hippocampal Place Fields
Author(s):

Kathryn M. Gill

Sheri J. Y. Mizumori

Publisher:
Oxford University Press
DOI:10.1093/acprof:oso/9780195323245.003.0020

This chapter compares the putative mechanisms by which dopamine selectively affects learning that is thought to be mediated by functionally distinct brain regions, such as the hippocampus and dorsal striatum. First, it discusses a summary of the behavioral changes that result from alterations in normal dopamine signalling. The way in which dopamine mediates hippocampal and dorsal striatal-dependent behaviors is outlined, and the synaptic plasticity mechanisms underlying the effects of dopamine on behavior are explored. Included is a discussion of the participation of dopamine in long-term potentiation (LTP) and long-term depression (LTD) and the involvement of dopamine in the activation of immediate early genes in brain regions, such as the hippocampus and dorsal striatum. The chapter also discusses how the influence of dopamine on synaptic plasticity corresponds to structure-specific neural signaling, potentially contributing to functional specialization of individual regions.

Keywords:   brain, hippocampus, dorsal striatum, dopamine signalling, long-term potentiation, long-term drepssion, synaptic plasticitiy, neural signaling

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