Classical center-surround receptive fields facilitate novel object detection in retinal bipolar cells.

ABSTRACT: Antagonistic interactions between center and surround receptive field (RF) components lie at the heart of the computations performed in the visual system. Circularly symmetric center-surround RFs are thought to enhance responses to spatial contrasts (i.e., edges), but how visual edges affect motion processing is unclear. Here, we addressed this question in retinal bipolar cells, the first visual neuron with classic center-surround interactions. We found that bipolar glutamate release emphasizes objects that emerge in the RF; their responses to continuous motion are smaller, slower, and cannot be predicted by signals elicited by stationary stimuli. In our hands, the alteration in signal dynamics induced by novel objects was more pronounced than edge enhancement and could be explained by pri

SUBMITTER: Gaynes JA 

PROVIDER: S-EPMC9512824 | biostudies-literature | 2022 Sep

REPOSITORIES: biostudies-literature