Visual Skills and Auditory Deprivation: Insight on Deaf Individuals

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Abstract: The objective of this study was conducted in order to see if deaf individuals display both better and worse visual skills than having the ability to perceive sounds. Also, to determine if it is possible that early auditory deprivation would cause vision to enhance. The data for this study was collected and analyzed in this way by using bulk of literature on deafness reports; describing the deficiencies in deaf individuals. The subjects undergo three different studies: selective effects on deafness on visual cognition, deafness alters the spatial distribution of visual attention, and neural correlates of cross-modal plasticity. The results showed that in hearing individuals, central distractors are more distracting than peripheral
The researchers proposed that the aspects of vision are attentionally demanding and to use auditory-visual convergence to benefit the deaf community. The study provided that auditory deprivation leads to enhanced peripheral visual attention putting deaf individuals at risk in academic settings. Academic settings usually rely on central attention in distracting environment. The three findings of previous relevant studies were that there were “no change in or worse performance by deaf individuals on a variety of tasks as compared to hearing [2, 3].” The bulk of the literature described deficiencies in deaf individuals where recent evidences documented that enhancement of a few perceptual and cognitive skills following congenital deafness [4, 5]. Also, the “discrepancies in the literature might be largely explained by the fact that most studies reporting deficient functions typically include deaf subjects with heterogeneous backgrounds.” The goal of this study was to determine if deaf individuals have enhanced perceptual
Also, the “subjects were warned that either a square or a diamond would appear in one of the six rings, and they were to decide as fast and as accurately as possible which shape was presented.” On every trial, the outside of the target rings appeared as the distractor shape and the shape could be the same shape as either the target or the alternative target. The study found that hearing individuals showed greater distractibility from central than peripheral distractors, while deaf individuals showed the opposite. Another findings were that “in hearing individuals attention is at its peak in the center of the visual field, deaf individuals show greater attention at peripheral locations.” Lastly, the “auditory areas in the superior temporal sulcus, caudal to the primary auditory cortex, showed greater recruitment in Deaf than in hearing individuals when processing visual, tactile, or signed stimuli [23, 24,

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