Centroparietal activity mirrors the decision variable when tracking biased and time-varying sensory evidence.
Cognitive Psychology(2020)
Abstract
•Dynamic human brain activity (CPP) appears to track evidence accumulation process.•Sequential sampling models fitted to only RT predict how CPP evolves through time.•Models can capture manipulations of response cuing and evidence strength/continuity.•Non-intuitive model predictions emphasize the importance of a formal approach.
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Key words
Decision-making,Centroparietal positivity,Decision bias,Non-stationary evidence,Accumulator model
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