Learning Limits of Deaf Children for Coded Speech

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Abstract
Programmed instruction was used to train profoundly deaf subjects to crude limits of learning in the association of pictures and spoken words. The words differed only in consonant structure. The performance of three groups of six subjects were compared. One group received linearly amplified speech to both ears; another, coded speech to both ears; and the third, linearly amplified speech to the left ear and coded speech to the right. A control group of six children was trained without auditory cues. The three experimental groups showed significant improvement with training, but there was no significant difference between groups with respect to either performance at the limits of learning or number of repetitions required to reach the limits. Transposition of speech through coding did not improve the discrimination of consonants by the deaf children tested.

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