Publication Date:
1994-07-29
Description:
Simultaneous recordings were made from large ensembles of hippocampal "place cells" in three rats during spatial behavioral tasks and in slow-wave sleep preceding and following these behaviors. Cells that fired together when the animal occupied particular locations in the environment exhibited an increased tendency to fire together during subsequent sleep, in comparison to sleep episodes preceding the behavioral tasks. Cells that were inactive during behavior, or that were active but had non-overlapping spatial firing, did not show this increase. This effect, which declined gradually during each post-behavior sleep session, may result from synaptic modification during waking experience. Information acquired during active behavior is thus re-expressed in hippocampal circuits during sleep, as postulated by some theories of memory consolidation.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Wilson, M A -- McNaughton, B L -- MH46823/MH/NIMH NIH HHS/ -- New York, N.Y. -- Science. 1994 Jul 29;265(5172):676-9.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Division of Neural Systems, Memory, and Aging, University of Arizona, Tucson 85724.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/8036517" target="_blank"〉PubMed〈/a〉
Keywords:
Action Potentials/physiology
;
Animals
;
Hippocampus/*physiology
;
Male
;
Memory/*physiology
;
Models, Neurological
;
Motor Activity/physiology
;
Nerve Net/physiology
;
Neurons/*physiology
;
Pyramidal Cells/physiology
;
Rats
;
Rats, Inbred F344
;
Reaction Time/physiology
;
Sleep/*physiology
;
Spatial Behavior/physiology
Print ISSN:
0036-8075
Electronic ISSN:
1095-9203
Topics:
Biology
,
Chemistry and Pharmacology
,
Computer Science
,
Medicine
,
Natural Sciences in General
,
Physics
