Stimulus-Driven Population Activity Patterns in Macaque Primary Visual Cortex.

ABSTRACT: Dimensionality reduction has been applied in various brain areas to study the activity of populations of neurons. To interpret the outputs of dimensionality reduction, it is important to first understand its outputs for brain areas for which the relationship between the stimulus and neural response is well characterized. Here, we applied principal component analysis (PCA) to trial-averaged neural responses in macaque primary visual cortex (V1) to study two fundamental, population-level questions. First, we characterized how neural complexity relates to stimulus complexity, where complexity is measured using relative comparisons of dimensionality. Second, we assessed the extent to which responses to different stimuli occupy similar dimensions of the population activity space using a novel s

SUBMITTER: Cowley BR 

PROVIDER: S-EPMC5147778 | biostudies-literature | 2016 Dec

REPOSITORIES: biostudies-literature