Development of orientation selective receptive fields via Hebbian plasticity
Bettina Hein,Francesco Fumarola,Kenneth D Miller · COSYNE 2022
Orientation selectivity is a key feature of primary visual cortex (V1). Orientation specific receptive fields (OSRFs) appear to arise from specific feedforward connectivity from lateral geniculate nucleus (LGN) to V1 cells. OSRF development has been hypothesized to arise from a competition between ON- and OFF-center LGN cells, if the difference between same-type and opposite-type correlation functions is a non-monotonic, "Mexican hat" function of cell-cell separation. However experiments found this difference decays monotonically. Many models have assumed "Mexican hat" recurrent connectivity (
Fri, Mar 18, 2022