Distinct neural markers of evidence accumulation index metacognitive processing before and after simple visual decisions.

ABSTRACT: Perceptual decision-making is affected by uncertainty arising from the reliability of incoming sensory evidence (perceptual uncertainty) and the categorization of that evidence relative to a choice boundary (categorical uncertainty). Here, we investigated how these factors impact the temporal dynamics of evidence processing during decision-making and subsequent metacognitive judgments. Participants performed a motion discrimination task while electroencephalography was recorded. We manipulated perceptual uncertainty by varying motion coherence, and categorical uncertainty by varying the angular offset of motion signals relative to a criterion. After each trial, participants rated their desire to change their mind. High uncertainty impaired perceptual and metacognitive judgments and reduced

SUBMITTER: Stone C 

PROVIDER: S-EPMC11070453 | biostudies-literature | 2024 May

REPOSITORIES: biostudies-literature