Cortical columns: a multi-parameter examination.
Columnar structure in the cerebral cortex has been demonstrated in numerous studies. However, in the visual system, it is not clear from imaging, basic physiological and anatomical approaches how multiple stimulus parameters are related within columns. We have analyzed recordings from pairs of neurons in the striate cortex of the cat using various spatial and temporal parameters. We find that most parameters are clustered within inferred columns with the exception of spatial phase. Diversity of phase could be useful for serial processing in central visual pathways.
Freeman
Ralph D
RD
Group in Vision Science and School of Optometry, Helen Wills Neuroscience Institute, University of California, Berkeley, CA 94720-2020, USA. freeman@neurovision.berkeley.edu
D000200:Action Potentials / Q000502:physiology; D000818:Animals; D002415:Cats; D016000:Cluster Analysis; D005074:Evoked Potentials, Visual / Q000502:physiology*; D007395:Interneurons / Q000502:physiology*; D009415:Nerve Net / Q000033:anatomy & histology / Q000502:physiology*; D010775:Photic Stimulation; D012680:Sensitivity and Specificity; D013223:Statistics as Topic; D014793:Visual Cortex / Q000502:physiology*; D014796:Visual Perception / Q000502:physiology*