NDLI: Firing rates of hippocampal neurons are preserved during subsequent sleep episodes and modified by novel awake experience.

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Firing rates of hippocampal neurons are preserved during subsequent sleep episodes and modified by novel awake experience.

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Firing rates of hippocampal neurons are preserved during subsequent sleep episodes and modified by novel awake experience.

Content Provider	World Health Organization (WHO)-Global Index Medicus
Author	Hirase, H. Buzsáki, G. Leinekugel, X. Czurkó, A. Csicsvari, J.
Description	Author Affiliation: Hirase H ( Center for Molecular and Behavioral Neuroscience, Rutgers, State University of New Jersey, 197 University Avenue, Newark, NJ 07102, USA.);
Abstract	What determines the firing rate of cortical neurons in the absence of external sensory input or motor behavior, such as during sleep? Here we report that, in a familiar environment, the discharge frequency of simultaneously recorded individual CA1 pyramidal neurons and the coactivation of cell pairs remain highly correlated across sleep-wake-sleep sequences. However, both measures were affected when new sets of neurons were activated in a novel environment. Nevertheless, the grand mean firing rate of the whole pyramidal cell population remained constant across behavioral states and testing conditions. The findings suggest that long-term firing patterns of single cells can be modified by experience. We hypothesize that increased firing rates of recently used neurons are associated with a concomitant decrease in the discharge activity of the remaining population, leaving the mean excitability of the hippocampal network unaltered.
ISSN	00278424
e-ISSN	10916490
Journal	Proceedings of the National Academy of Sciences of the United States of America
Issue Number	16
Volume Number	98
Language	English
Publisher	National Academy of Sciences
Publisher Date	2001-08-01
Publisher Place	United States
Access Restriction	Open
Subject Keyword	Hippocampus Physiology Neurons Wakefulness Animals Cytology Rats, Long-Evans Research Support, Non-U.S. Gov't Research Support, U.S. Gov't, P.H.S. Multidisciplinary
Content Type	Text
Resource Type	Article
Subject	Multidisciplinary

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