Losses resulting from deliberate exploration trigger beta oscillations in frontal cortex.

ABSTRACT: We examined the neural signature of directed exploration by contrasting MEG beta (16-30 Hz) power changes between disadvantageous and advantageous choices in the two-choice probabilistic reward task. We analyzed the choices made after the participants have learned the probabilistic contingency between choices and their outcomes, i.e., acquired the inner model of choice values. Therefore, rare disadvantageous choices might serve explorative, environment-probing purposes. The study brought two main findings. Firstly, decision making leading to disadvantageous choices took more time and evidenced greater large-scale suppression of beta oscillations than its advantageous alternative. Additional neural resources recruited during disadvantageous decisions strongly suggest their deliberately expl

SUBMITTER: Chernyshev BV 

PROVIDER: S-EPMC10211346 | biostudies-literature | 2023

REPOSITORIES: biostudies-literature