Tuned inhibition in perceptual decision-making circuits can explain seemingly suboptimal confidence behavior.

ABSTRACT: Current dominant views hold that perceptual confidence reflects the probability that a decision is correct. Although these views have enjoyed some empirical support, recent behavioral results indicate that confidence and the probability of being correct can be dissociated. An alternative hypothesis suggests that confidence instead reflects the magnitude of evidence in favor of a decision while being relatively insensitive to the evidence opposing the decision. We considered how this alternative hypothesis might be biologically instantiated by developing a simple neural network model incorporating a known property of sensory neurons: tuned inhibition. The key idea of the model is that the level of inhibition that each accumulator unit receives from units with the opposite tuning preference,

SUBMITTER: Maniscalco B 

PROVIDER: S-EPMC8032199 | biostudies-literature | 2021 Mar

REPOSITORIES: biostudies-literature