Subjective value and decision entropy are jointly encoded by aligned gradients across the human brain.

ABSTRACT: Recent work has considered the relationship between value and confidence in both behavioural and neural representation. Here we evaluated whether the brain organises value and confidence signals in a systematic fashion that reflects the overall desirability of options. If so, regions that respond to either increases or decreases in both value and confidence should be widespread. We strongly confirmed these predictions through a model-based fMRI analysis of a mixed gambles task that assessed subjective value (SV) and inverse decision entropy (iDE), which is related to confidence. Purported value areas more strongly signalled iDE than SV, underscoring how intertwined value and confidence are. A gradient tied to the desirability of actions transitioned from positive SV and iDE in ventromedial

SUBMITTER: Bobadilla-Suarez S 

PROVIDER: S-EPMC7578785 | biostudies-literature | 2020 Oct

REPOSITORIES: biostudies-literature