Spatial frequency columns in primary visual cortex.
Using the activity-dependent 2-[14C]deoxy-D-glucose technique, we have demonstrated a columnar organization of spatial frequency--specific sensitivity in striate cortex. Cats viewing patterns containing a single spatial frequency presented at all orientations show columns of increased deoxyglucose uptake extending through all cortical layers. A control stimulus containing all spatial frequencies presented at all orientations produces no columnar density differences within the striate cortex.
D000818:Animals; D001345:Autoradiography; D001931:Brain Mapping; D002415:Cats; D003847:Deoxyglucose; D009949:Orientation / Q000502:physiology; D013028:Space Perception / Q000502:physiology; D014793:Visual Cortex / Q000166:cytology* / Q000502:physiology; D014796:Visual Perception / Q000502:physiology*
D003847:Deoxyglucose