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The Neurobiology of Spatial Behaviour$
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K.J. Jeffery

Print publication date: 2003

Print ISBN-13: 9780198515241

Published to Oxford Scholarship Online: March 2012

DOI: 10.1093/acprof:oso/9780198515241.001.0001

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A model of hippocampal–cortical–amygdala interactions based on contextual fear conditioning

A model of hippocampal–cortical–amygdala interactions based on contextual fear conditioning

Chapter:
(p.83) Chapter 5 A model of hippocampal–cortical–amygdala interactions based on contextual fear conditioning
Source:
The Neurobiology of Spatial Behaviour
Author(s):

Brian J. Wiltgen

Michael S. Fanselow

Publisher:
Oxford University Press
DOI:10.1093/acprof:oso/9780198515241.003.0005

This chapter examines the interplay between the spatial representation and the circuitry underlying the expression of fear responses. It outlines research into this circuitry, of which a crucial component is the amygdala, and then looks at how the spatial representation interacts with it so that animal can learn to fear a place in which it has experienced an aversive event. In particular, it develops an anatomical model of context fear involving hippocampal-cortical-amygdala interactions to help explicate the existing data and generate new predictions. It begins by explaining fear as a functional behavioural system that has evolved to protect animals from predation. In addition, a discussion of the basic neural circuitry involved in conditional fear is provided. The data indicate that two functionally distinct systems contribute to context fear acquisition. Furthermore, it is assumed that the ventral hippocampal system may provide an interface between complex multimodal processing by neocortical systems and emotional processing by the amygdala and other ‘limbic’ structures.

Keywords:   hippocampus, cortex, amygdala, fear, spatial representation, circuitry, ventral hippocampal system, multimodal processing, emotional processing

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