Beta oscillations following performance feedback predict subsequent recall of task-relevant information.

ABSTRACT: Reward delivery in reinforcement learning tasks elicits increased beta power in the human EEG over frontal areas of the scalp but it is unclear whether these 20-30 Hz oscillations directly facilitate reward learning. We previously proposed that frontal beta is not specific to reward processing but rather reflects the role of prefrontal cortex in maintaining and transferring task-related information to other brain areas. To test this proposal, we had subjects perform a reinforcement learning task followed by a memory recall task in which subjects were asked to recall stimuli associated either with reward feedback (Reward Recall condition) or error feedback (Error Recall condition). We trained a classifier on post-feedback beta power in the Reward Recall condition to discriminate trials asso

SUBMITTER: HajiHosseini A 

PROVIDER: S-EPMC7493892 | biostudies-literature | 2020 Sep

REPOSITORIES: biostudies-literature