BIOL 306 Lecture Notes - Lecture 16: Superior Colliculus, Azimuth, Unimodality
15 Jan 2018
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Document Summary
Direction selectivity is like a subset of orientation selectivity direction is implied to go with orientation (but not vice-versa) Retinotopy: direct mapping of visual input from retina onto the brain, but 180deg rotation of visual field. In owls, cartesian map of the real world is also found in the brain. Based on the topographic projections on the retina, you get the same projection of the visual field in higher level of organisation (e. g. in the visual cortex) Neurons encoding proximal visual areas are also close to each other in the retina and also in the cortex. "neurons that are physically close to each other have visual receptive fields that are close to each other" Maintenance of physical proximity in the retina to the optic tectum. Spatial organisation of neurons in the icx are based on auditory receptive fields (cid:1372) neurons along the same axis int the icx are tuned along the same azimuth.
