Adaptive biasing of action-selective cortical build-up activity by stimulus history.

ABSTRACT: Decisions under uncertainty are often biased by the history of preceding sensory input, behavioral choices, or received outcomes. Behavioral studies of perceptual decisions suggest that such history-dependent biases affect the accumulation of evidence and can be adapted to the correlation structure of the sensory environment. Here, we systematically varied this correlation structure while human participants performed a canonical perceptual choice task. We tracked the trial-by-trial variations of history biases via behavioral modeling and of a neural signature of decision formation via magnetoencephalography (MEG). The history bias was flexibly adapted to the environment and exerted a selective effect on the build-up (not baseline level) of action-selective motor cortical activity during de

SUBMITTER: Braun A 

PROVIDER: S-EPMC10703440 | biostudies-literature | 2023 Dec

REPOSITORIES: biostudies-literature