Information transmission in oscillatory neural activity

Details Information transmission in oscillatory neural activity Information transmission in oscillatory neural activity

2008-09-24

arxiv.org/abs/0809.4059v2

Biological Cybernetics (2008) 99:403-416

Biology

Quantitative Biology

Neurons and Cognition

18 pages, 8 figures, to appear in Biological Cybernetics

Scientific paper

10.1007/s00422-008-0273-6

Periodic neural activity not locked to the stimulus or to motor responses is usually ignored. Here, we present new tools for modeling and quantifying the information transmission based on periodic neural activity that occurs with quasi-random phase relative to the stimulus. We propose a model to reproduce characteristic features of oscillatory spike trains, such as histograms of inter-spike intervals and phase locking of spikes to an oscillatory influence. The proposed model is based on an inhomogeneous Gamma process governed by a density function that is a product of the usual stimulus-dependent rate and a quasi-periodic function. Further, we present an analysis method generalizing the direct method (Rieke et al, 1999; Brenner et al, 2000) to assess the information content in such data. We demonstrate these tools on recordings from relay cells in the lateral geniculate nucleus of the cat.

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