9 children with hearing losses and 9 normal controls used a telegraph key to reproduce temporal patterns created by an above-threshold tone or by a flashing light. The hypothesis was confirmed that early auditory deprivation is associated with a deficit in later abilities to use above-threshold auditory information. To a lesser degree, Ss with hearing losses were inferior to normals in visual temporal pattern reproduction as well, suggesting that the effects of sensory deprivation are not limited to the deprived sensory modality.
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