Structural theorems for simple cell receptive fields
نویسندگان
چکیده
منابع مشابه
Periodicity of striate-cortex-cell receptive fields.
If striate cells had the simple bipartite or tripartite receptive fields (RF's) classically attributed to them, they should be quite broadly tuned for spatial frequency. Most striate-cortex cells, however, are fairly narrowly tuned and would be expected to have more-periodic RF's. We have examined this question in recordings of the responses of cat and monkey striate-cortex cells to gratings of...
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Receptive fields of retinal ganglion cells in turtle have excitatory and inhibitory components that are balanced along the dimensions of wavelength, functional ON and OFF responses, and spatial assignments of center and surround. These components were analyzed by spectral light adaptations and by the glutamate agonist, 2-amino-4-phosphonobutyric acid (APB). Extracellular recordings to stationar...
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Binocular simple cells in primary visual cortex (V1) are the first cells along the mammalian visual pathway to receive input from both eyes. Two models of how binocular simple cells could extract disparity information have been put forward. The phase-shift model proposes that the receptive fields in the two eyes have different subunit organizations, while the position-shift model proposes that ...
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between the two eyes' receptive fields. The phase-shift model proposes that disparity is computed by a difference in the arrangement of ON and OFF subunits between the two eyes' receptive fields. This model is based Harvard Medical School on the hypothesis that simple cell receptive fields are 220 Longwood Avenue well modeled by A Gabor function is a product of a Gaussian and a sine wave. The p...
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Drosophila APC has a role in maintaining adherens junctions, and also helps to tether mitotic spindles to the cortex and to orient them in the epithelial plane. In mammalian cells, APC has been implicated in cell migration. APC also helps safeguard the fidelity of chromosome segregation in mitotic cells. Loss of APC’s various functions at the cell periphery may contribute to tumour progression....
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ژورنال
عنوان ژورنال: Journal of Vision
سال: 2010
ISSN: 1534-7362
DOI: 10.1167/8.6.802