Dissociating sensory from decision processes in human perceptual decision making.

ABSTRACT: A key question within systems neuroscience is how the brain translates physical stimulation into a behavioral response: perceptual decision making. To answer this question, it is important to dissociate the neural activity underlying the encoding of sensory information from the activity underlying the subsequent temporal integration into a decision variable. Here, we adopted a decoding approach to empirically assess this dissociation in human magnetoencephalography recordings. We used a functional localizer to identify the neural signature that reflects sensory-specific processes, and subsequently traced this signature while subjects were engaged in a perceptual decision making task. Our results revealed a temporal dissociation in which sensory processing was limited to an early time windo

SUBMITTER: Mostert P 

PROVIDER: S-EPMC4678878 | biostudies-literature | 2015 Dec

REPOSITORIES: biostudies-literature