Theta but not beta activity is modulated by freedom of choice during action selection.

ABSTRACT: Large-scale neurophysiological markers of action competition have been almost exclusively investigated in the context of instructed choices, hence it remains unclear whether these markers also apply to free choices. This study aimed to compare the specific brain dynamics underlying instructed and free decisions. Electroencephalography (EEG) was recorded while 31 participants performed a target selection task; the choice relied either on stimulus-response mappings (instructed) or on participants' preferences (free). Choice difficulty was increased by introducing distractors in the informative stimulus in instructed choices, and by presenting targets with similar motor costs in free choices. Results revealed that increased decision difficulty was associated with higher reaction times (RTs) i

SUBMITTER: Pierrieau E 

PROVIDER: S-EPMC9160249 | biostudies-literature | 2022 Jun

REPOSITORIES: biostudies-literature