Mesopic contrast sensitivity of deaf children for radial and sine-wave grating stimuli
Keywords:
percepção visual, sensibilidade ao contraste, crianças surdas, freqüência radial e espacial, método da escolha forçada.Abstract
The aim of this work was to measure and compare mesopic contrast sensitivity curves for radial (rCSF) and sine-wave gratings (CSF) stimuli of 0.25, 0.5, 1 and 2 cpd in deaf children between the ages of 7 to 12 years. We measured the contrast thresholds of 10 children using the psychophysical forced-choice method and mean luminance of 0.7 cd/m2. All participants were free of ocular diseases and had normal acuity. The results showed that contrast sensitivity of the deaf children was higher for sine-wave gratings (CSF) than radial stimuli (rCSF). These results suggest that these two stimuli can be processed by different visual cortical areas.Downloads
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Published
2009-08-24
How to Cite
Santos, N. A., Silva, J. A., Alencar, C. C. G., Mendes, L. C., & Nogueira, R. M. T. B. L. (2009). Mesopic contrast sensitivity of deaf children for radial and sine-wave grating stimuli. Psico, 40(2). Retrieved from https://revistaseletronicas.pucrs.br/revistapsico/article/view/3788
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