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...
متن کاملHue maps in primate striate cortex.
The macaque striate cortex (V1) contains neurons that respond preferentially to various hues. The properties of these hue-selective neurons have been studied extensively at the single-unit level, but it is unclear how stimulus hue is represented by the distribution of activity across neuronal populations in V1. Here we use the intrinsic optical signal to image V1 responses to spatially uniform ...
متن کاملColor contrast processing in human striate cortex.
Color constancy refers to the unchanging nature of the perceived color of an object despite considerable variation in the wavelength composition of the light illuminating it. The color contrasts between objects and their backgrounds play a crucial role in color constancy. We tested a patient whose right striate cortex had been removed and demonstrated that he made no use of color contrast in ju...
متن کاملToward a Theory of the Striate Cortex
We explore the hypothesis that linear cortical neurons are concerned with building a particular type of representation of the visual world | one which not only preserves the information and the eeciency achieved by the retina, but in addition preserves spatial relationships in the input | both in the plane of vision and in the depth dimension. Focusing on the linear cortical cells, we classify ...
متن کاملReceptive Fields in Cat Striate Cortex
In the central nervous system the visual pathway from retina to striate cortex provides an opportunity to observe and compare single unit responses at several distinct levels. Patterns of light stimuli most effective in influencing units at one level may no longer be the most effective at the next. From differences in responses at successive stages in the pathway one may hope to gain some under...
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ژورنال
عنوان ژورنال: Nature
سال: 1990
ISSN: 0028-0836,1476-4687
DOI: 10.1038/348494a0