Learning multisensory integration and coordinate transformation via density estimation.

ABSTRACT: Sensory processing in the brain includes three key operations: multisensory integration-the task of combining cues into a single estimate of a common underlying stimulus; coordinate transformations-the change of reference frame for a stimulus (e.g., retinotopic to body-centered) effected through knowledge about an intervening variable (e.g., gaze position); and the incorporation of prior information. Statistically optimal sensory processing requires that each of these operations maintains the correct posterior distribution over the stimulus. Elements of this optimality have been demonstrated in many behavioral contexts in humans and other animals, suggesting that the neural computations are indeed optimal. That the relationships between sensory modalities are complex and plastic further su

SUBMITTER: Makin JG 

PROVIDER: S-EPMC3630212 | biostudies-literature | 2013 Apr

REPOSITORIES: biostudies-literature