Representational similarity modulates neural and behavioral signatures of novelty
Sophia Becker,
Alireza Modirshanechi,
Wulfram Gerstner
Abstract:Novelty signals in the brain modulate learning and drive exploratory behaviors in humans and animals. Inherently, whether a stimulus is novel or not depends on existing representations in the brain, yet it remains elusive how stimulus representations influence novelty computation. In particular, existing models of novelty computation fail to account for the effects of stimulus similarities that are abundant in naturalistic environments and tasks. Here, we present a unifying, biologically plausible model that c… Show more
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