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Inverse temporal contributions of the dorsal hippocampus and medial prefrontal cortex to the expression of long-term fear memories

Quinn, Jennifer J. and Ma, Quang D. and Tinsley, Matthew R. and Koch, Christof and Fanselow, Michael S. (2008) Inverse temporal contributions of the dorsal hippocampus and medial prefrontal cortex to the expression of long-term fear memories. Learning and Memory, 15 (5). pp. 368-372. ISSN 1072-0502. PMCID PMC3960031.

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Retrograde amnesia following disruptions of hippocampal function is often temporally graded, with recent memories being more impaired. Evidence supports the existence of one or more neocortical long-term memory storage/retrieval site(s). Neurotoxic lesions of the medial prefrontal cortex (mPFC) or the dorsal hippocampus (DH) were made 1 day or 200 days following trace fear conditioning. Recently encoded trace fear memories were most disrupted by DH lesions, while remotely encoded trace and contextual memories were most disrupted by mPFC lesions. These data strongly support the consolidation theory of hippocampus function and implicate the mPFC as a site of long-term memory storage/retrieval.

Item Type:Article
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URLURL TypeDescription CentralArticle
Koch, Christof0000-0001-6482-8067
Fanselow, Michael S.0000-0002-3850-5966
Additional Information:© 2008 Cold Spring Harbor Laboratory Press. Beginning 12 months from the full-issue publication date, articles published in Learning & Memory that are not designated as Open Access are distributed under the Creative Commons Attribution-Non-Commercial 4.0 International License (CC-BY-NC), as described at Received October 21, 2007; Accepted March 17, 2008. We thank C.J. Han, David Anderson, Barbara Knowlton, Frank Krasne, and David Jentsch for thoughtful discussion. This work was supported by NSF grant no. IBN9723295 to M.S.F., NIMH grant no. 5F31MH066549 to J.J.Q., and by a Discovery grant from the Gordon and Betty Moore Foundation. J.J.Q. is currently in the Department of Psychiatry, Yale University. Q.D.M. is currently in the School of Medicine at Western University. M.R.T. is currently at Roche Pharmaceuticals.
Group:Koch Laboratory (KLAB)
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Gordon and Betty Moore FoundationUNSPECIFIED
Issue or Number:5
PubMed Central ID:PMC3960031
Record Number:CaltechAUTHORS:20170725-123811870
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Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:79338
Deposited By: Tony Diaz
Deposited On:25 Jul 2017 20:10
Last Modified:09 Mar 2020 13:18

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