Functional architecture for speed tuning in primary visual cortex of carnivores.

ABSTRACT: Perception of motion critically depends on detecting the speed and direction of moving stimuli. The primary visual cortex (V1) of some mammals, including primates and carnivores, exhibits functional organization for key receptive field properties such as orientation, direction, and spatial frequency; however, less is known about the organization of speed-tuned cells. While individual V1 neurons have been shown to exhibit speed selectivity, functional architecture for speed preference has been primarily reported in higher cortical areas such as primate area MT. Using multi-channel electrophysiology in anesthetized female ferrets, we investigated the joint tuning of V1 neurons for spatial frequency, temporal frequency, orientation/direction, and speed. We found significant clustering of cell

SUBMITTER: Casanova VMS 

PROVIDER: S-EPMC12637459 | biostudies-literature | 2025 Nov

REPOSITORIES: biostudies-literature