Cue combination encoding via contextual modulation of V1 and V2 neurons.

ABSTRACT: Neurons in early visual cortical areas encode the local properties of a stimulus in a number of different feature dimensions such as color, orientation, and motion. It has been shown, however, that stimuli presented well beyond the confines of the classical receptive field can augment these responses in a way that emphasizes these local attributes within the greater context of the visual scene. This mechanism imparts global information to cells that are otherwise considered local feature detectors and can potentially serve as an important foundation for surface segmentation, texture representation, and figure-ground segregation. The role of early visual cortex toward these functions remains somewhat of an enigma, as it is unclear how surface segmentation cues are integrated from multiple f

SUBMITTER: Zarella MD 

PROVIDER: S-EPMC5398756 | biostudies-literature | 2016

REPOSITORIES: biostudies-literature