The spatial localization deficit in visually deprived kittens
| Autor: | Guy Gingras, Robert F. Hess, Donald E. Mitchell |
|---|---|
| Rok vydání: | 2004 |
| Předmět: |
Deprivation
medicine.medical_specialty Visual acuity genetic structures media_common.quotation_subject Visual Acuity Audiology Amblyopia 050105 experimental psychology Contrast Sensitivity Perceptual Disorders 03 medical and health sciences 0302 clinical medicine Optics Vision Monocular medicine Contrast (vision) Animals 0501 psychology and cognitive sciences Sensory deprivation 10. No inequality media_common Monocular Behavior Animal business.industry 05 social sciences medicine.disease eye diseases Sensory Systems Strabismus Ophthalmology Monocular deprivation Space Perception Grating acuity Cats sense organs Spatial frequency medicine.symptom Sensory Deprivation business Psychology Monocular vision Esotropia Alignment accuracy 030217 neurology & neurosurgery Photic Stimulation |
| Zdroj: | Vision research. 45(8) |
| ISSN: | 0042-6989 |
| Popis: | We measured the spatial localization abilities (alignment accuracy) of visually deprived kittens by use of similar spatially bandpass stimuli (Gaussian blobs) to those employed for the assessment of human amblyopes. The tests of vision were conducted on kittens reared with either strabismus or following different periods of monocular deprivation. As with amblyopic humans, the deficits in alignment accuracy were scaled in proportion to blob size and were not only considerably larger than those of grating acuity but also were not correlated with either the acuity or contrast sensitivity losses. Tests with stimuli of various contrast revealed that the deficits could not be explained in terms of the contrast sensitivity loss in this eye. The positional deficits that arise from anomalous visual development are independent of the contrast sensitivity loss and profound. |
| Databáze: | OpenAIRE |
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