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- W4372197599 abstract "Cortical neurons exhibit highly variable responses over trials and time. Theoretical works posit that this variability arises potentially from chaotic network dynamics of recurrently connected neurons. Here we demonstrate that chaotic neural dynamics, formed through synaptic learning, allow networks to perform sensory cue integration in a sampling-based implementation. We show that the emergent chaotic dynamics provide neural substrates for generating samples not only of a static variable but also of a dynamical trajectory, where generic recurrent networks acquire these abilities with a biologically-plausible learning rule through trial and error. Furthermore, the networks generalize their experience in the stimulus-evoked samples to the inference without partial or all sensory information, which suggests a computational role of spontaneous activity as a representation of the priors as well as a tractable biological computation for marginal distributions. These findings suggest that chaotic neural dynamics may serve for the brain function as a Bayesian generative model." @default.
- W4372197599 created "2023-05-07" @default.
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- W4372197599 date "2023-05-05" @default.
- W4372197599 modified "2023-10-16" @default.
- W4372197599 title "Chaotic neural dynamics facilitate probabilistic computations through sampling" @default.
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- W4372197599 doi "https://doi.org/10.1101/2023.05.04.539470" @default.
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