Input correlations impede suppression of chaos and learning in balanced rate networks. (arXiv:2201.09916v1 [q-bio.NC])

Neural circuits exhibit complex activity patterns, both spontaneously and
evoked by external stimuli. Information encoding and learning in neural
circuits depend on how well time-varying stimuli can control spontaneous
network activity. We show that in firing-rate networks in the balanced state,
external control of recurrent dynamics, i.e., the suppression of
internally-generated chaotic variability, strongly depends on correlations in
the input. A unique feature of balanced networks is that, because common
external input is dynamically canceled by recurrent feedback, it is …

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