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
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.
|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|