Contrast sensitivity abnormalities in deaf individuals
نویسندگان
چکیده
منابع مشابه
Abnormalities of central contrast sensitivity in glaucoma.
The detectability of foveally presented low-contrast flickering stimuli was determined for glaucoma patients, ocular hypertensives, and normal control subjects. Two types of stimuli, a homogeneous flickering field, and a counterphase flickering grating of low spatial frequency, were presented on a screen subtending 4 degrees of visual angle. The average of the contrast sensitivities to these tw...
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The possibility that, following early auditory deprivation, the remaining senses such as vision are enhanced has been met with much excitement. However, deaf individuals exhibit both better and worse visual skills than hearing controls. We show that, when deafness is considered to the exclusion of other confounds, enhancements in visual cognition are noted. The changes are not, however, widespr...
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Studies in the deaf suggest that cross-modal neuroplastic changes may vary across modalities. Only a handful of studies have examined motor capacities in the profoundly deaf. These studies suggest the presence of deficits in manual dexterity and delays in movement production. As of yet, the ability to learn complex sequential motor patterns has not been explored in deaf populations. The aim of ...
متن کاملOphthalmologic abnormalities among deaf students in Kaduna, Northern Nigeria.
BACKGROUND The association between deafness and ocular problems is well established; however the nature and prevalence of these problems are diverse across the globe. OBJECTIVE The aim of this study is to determine the nature and prevalence of ophthalmologic abnormalities in deaf students and offer treatment to those with remediable conditions. METHOD Six hundred and twenty deaf students ag...
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Individuals with disabilities encounter practical and social problems beyond those experienced by nondisabled individuals. This extra burden may in turn increase the risk of developing mental health problems. The objective of this article is to disclose the mental health situation among deaf individuals compared to a control sample of hearing individuals. The analyses are based on two separate ...
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ژورنال
عنوان ژورنال: Journal of Ophthalmic and Vision Research
سال: 2018
ISSN: 2008-322X
DOI: 10.4103/jovr.jovr_218_16