Neurons in Primate Visual Cortex Alternate between Responses to Multiple Stimuli in Their Receptive Field.

ABSTRACT: A fundamental question concerning representation of the visual world in our brain is how a cortical cell responds when presented with more than a single stimulus. We find supportive evidence that most cells presented with a pair of stimuli respond predominantly to one stimulus at a time, rather than a weighted average response. Traditionally, the firing rate is assumed to be a weighted average of the firing rates to the individual stimuli (response-averaging model) (Bundesen et al., 2005). Here, we also evaluate a probability-mixing model (Bundesen et al., 2005), where neurons temporally multiplex the responses to the individual stimuli. This provides a mechanism by which the representational identity of multiple stimuli in complex visual scenes can be maintained despite the large receptiv

SUBMITTER: Li K 

PROVIDER: S-EPMC5187355 | biostudies-literature | 2016

REPOSITORIES: biostudies-literature