Gamma rhythms and beta rhythms have different synchronization properties

Nancy Kopell; Bard Ermentrout; Miles A. Whittington; Roger D. Traub

doi:10.1073/pnas.97.4.1867

Abstract

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.

Keywords

RhythmSynchronization (alternating current)Beta RhythmBETA (programming language)NeurosciencePhysicsTheta rhythmBiological systemHippocampusBiologyComputer scienceMathematicsTopology (electrical circuits)Acoustics

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Publication Info

Year: 2000
Type: article
Volume: 97
Issue: 4
Pages: 1867-1872
Citations: 1085
Access: Closed

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APA Style

                            
                                
                                    Nancy Kopell, 
                                
                                    Bard Ermentrout, 
                                
                                    Miles A. Whittington
                                
                                et al.
                            
                            (2000). 
                            Gamma rhythms and beta rhythms have different synchronization properties. 
                            Proceedings of the National Academy of Sciences
                            , 97
                            (4)
                            , 1867-1872.
                            https://doi.org/10.1073/pnas.97.4.1867
                        

Identifiers

DOI: 10.1073/pnas.97.4.1867