Clustered organization of neurons with similar extra-receptive field properties in the primary visual cortex.
The primary visual cortex is organized into clusters of cells having similar classical receptive field (CRF) properties. Nonclassical, extra-receptive fields (ERFs) can either inhibit or facilitate the response elicited by stimulation within the CRF. Here, we report that in the primary visual cortex of cat, neurons with similar inhibitory or facilitatory ERF properties are also grouped into clusters. These clusters are randomly distributed in all cortical layers, with no detectable relationship with orientation and ocular dominance columns. This functional organization of neurons with respect to ERF properties may allow an efficient processing of global visual information.
Yao
Haishan
H
Institute of Neuroscience, Shanghai Institutes of Biological Sciences, Chinese Academy of Sciences, Shanghai 200 031, China.
Li
Chao-Yi
CY
D000200:Action Potentials / Q000502:physiology; D000818:Animals; D002415:Cats / Q000033:anatomy & histology / Q000502:physiology*; D048429:Cell Size / Q000502:physiology; D009415:Nerve Net / Q000166:cytology / Q000502:physiology*; D009433:Neural Inhibition / Q000502:physiology; D009474:Neurons / Q000166:cytology / Q000502:physiology*; D009949:Orientation / Q000502:physiology; D012160:Retina / Q000502:physiology*; D009435:Synaptic Transmission / Q000502:physiology; D015348:Vision, Binocular / Q000502:physiology; D014793:Visual Cortex / Q000166:cytology / Q000502:physiology*; D014794:Visual Fields / Q000502:physiology*; D014795:Visual Pathways / Q000502:physiology*; D014796:Visual Perception / Q000502:physiology*