Topic: decision thresholds

A key function of the brain is to process noisy sensory stimuli to make fast and accurate decisions. Canonical studies manipulate average noise to study stimulus effects on decision parameters, but how processing of exact stochastic fluctuations impacts the decision outcome, has remained largely unexplored. We conducted behavioral experiments with stimuli following physical motion equations under nonequilibrium processes to define the stimulus dynamics in detail. In experiment I, participants (N=21) judged the motion direction of a visual stimulus with a given drift velocity (v) and diffusion