Corticomuscular and intermuscular coherence during evidence accumulation in sensorimotor decision-making.

ABSTRACT: Evidence accumulation processes during decision-making are thought to continuously feed into the motor system, preparing multiple competing motor plans, of which one is executed when the evidence is complete. Previously, the state of this accumulation process has been studied by reading out the preparatory state of the motor system with evoked responses, once per trial. In this study, we aim to continuously track the sensorimotor decision during the trial using corticomuscular (CMC) and intermuscular coherence (IMC). We recorded EEG and EMG of healthy young adults (n = 34) who viewed random dot motion stimuli, with varying strengths across trials, and indicated their perceived motion direction by reaching towards one of two targets, requiring either flexion or extension of the elbow. Coher

SUBMITTER: Visser YF 

PROVIDER: S-EPMC11919635 | biostudies-literature | 2025 Mar

REPOSITORIES: biostudies-literature