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Gamma rhythms and beta rhythms have different synchronization properties

Kopell, N., Ermentrout, G.B., Whittington, M.A. and Traub, R.D. (2000) Gamma rhythms and beta rhythms have different synchronization properties. Proceedings of the National Academy of Sciences, 97 (4). pp. 1867-1872. ISSN 0027-8424


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Experimental and modeling efforts suggest that rhythms in the CA1 region of the hippocampus that are in the beta range (12-29 Hz) have a different dynamical structure than that of gamma (30-70 Hz). We use a simplified model to show that the different rhythms employ different dynamical mechanisms to synchronize, based on different ionic currents. The beta frequency is able to synchronize over long conduction delays (corresponding to signals traveling a significant distance in the brain) that apparently cannot be tolerated by gamma rhythms. The synchronization properties are consistent with data suggesting that gamma rhythms are used for relatively local computations whereas beta rhythms are used for higher level interactions involving more distant structures.

Item Type: Article
Copyright, Publisher and Additional Information: Copyright © 2000 by the National Academy of Sciences
Institution: The University of Leeds
Academic Units: The University of Leeds > Faculty of Biological Sciences (Leeds) > Institute of Membrane and Systems Biology (Leeds)
Depositing User: Sherpa Assistant
Date Deposited: 14 Mar 2006
Last Modified: 27 Jun 2014 06:26
Published Version: http://www.pnas.org/cgi/content/full/97/4/1867
Status: Published
Refereed: Yes
URI: http://eprints.whiterose.ac.uk/id/eprint/568

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