Differential imaging of ocular dominance and orientation selectivity in monkey striate cortex.

摘要: Differential images of ocular dominance, acquired by comparing responses to the two eyes, reveal dark and light bands where cortical cells are dominated right left eyes. These include most (but not all) histochemically stained cytochrome oxidase blobs in their centers. orientation, orthogonal orientations, that reminiscent “orientation columns” reported earlier, on basis 2-deoxyglucose (2DG) autoradiograms (Hubel et al., 1978). However, they shorter more fragmented because do regions lacking selectivity for orientation. Even though these “bands” derive from orientation-selective areas, comparisons with differential other orientations along centers prefer different orientations. Hence, orientation preferences inferred single images, or 2DG autoradiograms, necessarily incorrect. Interactions between dominance were investigated obtained binocular monocular stimulation, as well In both cases, elicited interactions minimal, indicating a remarkable unexpected independence subsequent experiments revealed arises, at least part, lateral segregation selective one eye edges columns. Since this can also be viewed correlation binocularity selectivity, it fits simultaneous emergence properties layers receiving input layer 4c, suggests each requires other.