Effect of contrast on spatial frequency tuning of neurones in area 17 of cat's visual cortex
β Scribed by B. C. Skottun; A. Bradley; A. S. Ramoa
- Publisher
- Springer-Verlag
- Year
- 1986
- Tongue
- English
- Weight
- 434 KB
- Volume
- 63
- Category
- Article
- ISSN
- 0014-4819
No coin nor oath required. For personal study only.
π SIMILAR VOLUMES
The spatial frequency tuning and the contrast-response function of striate neurons in Siamese cats were investigated with drifting sinusoidal gratings of high contrast, and the results were compared to the data obtained in normally pigmented cats. The optimal spatial frequency of the tuning curves o
Sharpness and symmetry of orientation tuning were quantitatively investigated and compared in ninety-seven cells from areas 17 and 18 of the lightly-anaesthetised feline visual cortex. Halfwidths of orientation tuning at half-height ranged between 5 degrees and 73 degrees for long stimuli, with an e
Experiments have been performed on unanaesthetized and paralysed cats. The tuning curves for spatial frequency of retinal, lateral geniculate and simple and complex cells of the cortex have been determined in response to sinusoidal gratings of various spatial frequencies at different levels of mean
Non-linearities of spatial summation were examined in simple cells in the cat's striate cortex. The degree of non-linearity was assessed from an examination of the waveforms of the responses to moving sinusoidal gratings and was quantified by a measure called relative modulation. Relative modulation