Journal Article

FZJ-2019-03080

http://join2-wiki.gsi.de/foswiki/pub/Main/Artwork/join2_logo100x88.png Frequency cluster formation and slow oscillations in neural populations with plasticity

Röhr, V. (Corresponding author) ; Berner, R. ; Lameu, E. L. ; Popovych, O.FZJ* ; Yanchuk, S.

2019
PLOS San Francisco, California, US

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Please use a persistent id in citations: http://hdl.handle.net/2128/23694  doi:10.1371/journal.pone.0225094

Abstract: We report the phenomenon of frequency clustering in a network of Hodgkin-Huxley neurons with spike timing-dependent plasticity. The clustering leads to a splitting of a neural population into a few groups synchronized at different frequencies. In this regime, the amplitude of the mean field undergoes low-frequency modulations, which may contribute to the mechanism of the emergence of slow oscillations of neural activity observed in spectral power of local field potentials or electroencephalographic signals at high frequencies. In addition to numerical simulations of such multi-clusters, we investigate the mechanisms of the observed phenomena using the simplest case of two clusters. In particular, we propose a phenomenological model which describes the dynamics of two clusters taking into account the adaptation of coupling weights. We also determine the set of plasticity functions (update rules), which lead to multi-clustering

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Contributing Institute(s):

1. Gehirn & Verhalten (INM-7)

Research Program(s):

1. 572 - (Dys-)function and Plasticity (POF3-572) (POF3-572)

Appears in the scientific report 2019

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