Hebbian reverberations in emotional memory micro circuits
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Description
The study of memory in most behavioral paradigms, including emotional memory paradigms, has focused on the feed forward components that underlie Hebb’s first postulate, associative synaptic plasticity. Hebb’s second postulate argues that activated ensembles of neurons reverberate in order to provide temporal coordination of different neural signals, and thereby facilitate coincidence detection. Recent evidence from our groups has suggested that the lateral amygdala (LA) contains recurrent microcircuits and that these may reverberate. Additionally this reverberant activity is precisely timed with latencies that would facilitate coincidence detection between cortical and sub cortical afferents to the LA.Thus, recent data at the microcircuit level in the amygdala provide some physiological evidence in support of the second Hebbian postulate.
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ID Code: | 216952 |
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Item Type: | Contribution to Journal (Journal Article) |
Refereed: | Yes |
Measurements or Duration: | 8 pages |
DOI: | 10.3389/neuro.01.027.2009 |
ISSN: | 1662-4548 |
Pure ID: | 31984005 |
Divisions: | Past > QUT Faculties & Divisions > Faculty of Health Past > Institutes > Institute of Health and Biomedical Innovation Current > Schools > School of Psychology & Counselling |
Copyright Owner: | Copyright 2009 Johnson, LeDoux and Doyère |
Copyright Statement: | This document is protected by copyright and was first published by Frontiers. All rights reserved. It is reproduced with permission. |
Deposited On: | 06 Nov 2021 08:16 |
Last Modified: | 03 Mar 2024 18:27 |
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