Movement errors during skilled motor performance engage distinct prediction error mechanisms.

ABSTRACT: The brain detects deviations from intended behaviors by estimating the mismatch between predicted and actual outcomes. Axiomatic to these computations are salience and valence prediction error signals, which alert the brain to the occurrence and value of unexpected events. Despite the theoretical assertion of these prediction error signals, it is unknown whether and how brain mechanisms underlying their computations support error processing during skilled motor behavior. Here we demonstrate, with functional magnetic resonance imaging, that internal detection, i.e., without externally-provided feedback, of self-generated movement errors evokes instantaneous activity increases within the salience network and delayed lingering decreases within the nucleus accumbens - a key structure in the re

SUBMITTER: Gabitov E 

PROVIDER: S-EPMC7732826 | biostudies-literature | 2020 Dec

REPOSITORIES: biostudies-literature