Effects of deafness on the development of kinesthesis
Golub, Ralph J.
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The present study was conducted to explore further the general hypothesis that prolonged deficit in one perceptual modality during growth may have implications for the development of the residual intact modalities. Specifically, the absence of audition was hypothesized as having a retarding effect on the development of tactile-kinesthetic discrimination. A subsidiary aim was to clarify the interpretation of previous findings with the congenitally blind (Menaker, 1965) which indicated a four year developmental delay on one of the tasks administered (the size-weight illusion) in this investigation. A total of 192 children ranging in age from six through fourteen years served as subjects in the study; of this numb er, 84 were congenitally deaf, while 108 had normal hearing. The groups were matched solely for chronological age, although borderline children with respect to I. Q. , visual defect, and behavioral disorder were excluded. They were administered two tactile-kinesthetic tasks, a standard test of weight discrimination and the size-weight illusion, in counterbalanced order. [TRUNCATED]
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