Journal ArticleDOI
A neural effect of partial visual deprivation in humans.
TLDR
Certain human subjects have considerable sensitivity differences in the visual resolution of vertical gratings as compared to horizontal gratings, it is argued that the resolution anisotropies result from early abnormal visual input caused by astigmatism.Abstract:
Certain human subjects have considerable sensitivity differences in the visual resolution of vertical gratings as compared to horizontal gratings. Although only subjects with pronounced ocular astigmatism exhibit this effect, the differences are of neural, rather than optical, origin. It is argued that the resolution anisotropies result from early abnormal visual input caused by astigmatism. This abnormal input permanently modifies the brain.read more
Citations
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Human information processing and sensory modality: cross-modal functions, information complexity, memory, and deficit.
Journal ArticleDOI
The postnatal growth of visual capacity
TL;DR: It is concluded that the visual responses elicited during the first month of life are mediated directly by components of a phylogenetically older "second visual system," and that the more sophisticated reactions that typically begin to appear during the second and third months reflect a dawning participation of the primary visual system in the processing of visual input.
Journal ArticleDOI
Oblique Effect: A Neural Basis in the Visual Cortex
TL;DR: It is found that both the numbers of cells and the widths of orientation tuning vary as a function of preferred orientation, and this suggests that intracortical mechanisms play a major role in shaping the oblique effect.
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Visual acuity for vertical and diagonal gratings in human infants.
TL;DR: No differences were found between psychometric functions generated in the presence of gratings in the two different orientations, compared to earlier data in which orientational differences in acuity have been shown to exist in human adults.
Journal ArticleDOI
Sensitive period for the development of human binocular vision
TL;DR: Interocular transfer of the tilt-aftereffect was used to assess binocularity and individuals between 1 and 3 years of age are most susceptible to abnormal binocular experience.
References
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Journal ArticleDOI
The period of susceptibility to the physiological effects of unilateral eye closure in kittens
David H. Hubel,Torsten N. Wiesel +1 more
TL;DR: Kittens were visually deprived by suturing the lids of the right eye for various periods of time at different ages to study the effect of monocular eye closure on the number of cells that can be influenced by the previously closed eye.
Journal ArticleDOI
Single-cell responses in striate cortex of kittens deprived of vision in one eye.
Torsten N. Wiesel,David H. Hubel +1 more
Journal ArticleDOI
Comparison of the effects of unilateral and bilateral eye closure on cortical unit responses in kittens
Torsten N. Wiesel,David H. Hubel +1 more
TL;DR: In these experiments the use of monocular deprivation made it possible to compare adjacent geniculate layers, and also to compare the two eyes in their ability to influence cortical cells, so that each animal acted, in a sense, as its own control.
Journal ArticleDOI
Development of the Brain depends on the Visual Environment
TL;DR: They reared kittens with one eye viewing vertical stripes, the other horizontal, and found that out of twenty-one neurones with elongated receptive fields all were monocularly driven, and in all but one case the orientation of the receptive field closely matched the pattern experienced by that eye.
Journal ArticleDOI
Extent of recovery from the effects of visual deprivation in kittens.
Torsten N. Wiesel,David H. Hubel +1 more
TL;DR: Seven kittens were used, and the various procedures of deprivation and subsequent studies are summarized in Table 1.
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The period of susceptibility to the physiological effects of unilateral eye closure in kittens
David H. Hubel,Torsten N. Wiesel +1 more