Population Coding of Facial Information in the Monkey Superior Colliculus and Pulvinar.

ABSTRACT: The superior colliculus (SC) and pulvinar are thought to function as a subcortical visual pathway that bypasses the striate cortex and detects fundamental facial information. We previously investigated neuronal responses in the SC and pulvinar of monkeys during a delayed nonmatching-to-sample task, in which the monkeys were required to discriminate among 35 facial photos of five models and other categories of visual stimuli, and reported that population coding by multiple SC and pulvinar neurons well discriminated facial photos from other categories of stimuli (Nguyen et al., 2013, 2014). However, it remains unknown whether population coding could represent multiple types of facial information including facial identity, gender, facial orientation, and gaze direction. In the present study,

SUBMITTER: Nguyen MN 

PROVIDER: S-EPMC5175414 | biostudies-literature | 2016

REPOSITORIES: biostudies-literature