Impulsivity and risk-seeking as Bayesian inference under dopaminergic control.

ABSTRACT: Bayesian models successfully account for several of dopamine (DA)'s effects on contextual calibration in interval timing and reward estimation. In these models, tonic levels of DA control the precision of stimulus encoding, which is weighed against contextual information when making decisions. When DA levels are high, the animal relies more heavily on the (highly precise) stimulus encoding, whereas when DA levels are low, the context affects decisions more strongly. Here, we extend this idea to intertemporal choice and probability discounting tasks. In intertemporal choice tasks, agents must choose between a small reward delivered soon and a large reward delivered later, whereas in probability discounting tasks, agents must choose between a small reward that is always delivered and a large

SUBMITTER: Mikhael JG 

PROVIDER: S-EPMC8674258 | biostudies-literature | 2022 Jan

REPOSITORIES: biostudies-literature