Operant Conditioning for Investigating Speech Sound Discrimination in Aphasic Children |
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100 Trials Fig 70 Correct 75 Percent accomplish a discriminatory additional trials aphasic child aphasic children aphasic group aphasic involvements auditory discrimination tests auditory perceptual disorders auditory signals B. F. Skinner behavior birth brain damaged children central nervous system Channel Columbia Mental Maturity composite curves Correct 65 correct responses data for Pair discriminate between speech discrimination tasks discriminatory task distractibility evaluation examination experiment experimental group expressive aphasia factors hand lever havior impaired children investigation isolated sounds language acquisition language impaired language learning Leiter Mental Maturity Scale mentally retarded motor neurologically impaired nonsense word normal children number of correct number of trials operant conditioning Percent 70 perceptual functioning phonemes poor reinforcement contingencies pregnancy presented receptive aphasia selected sequence situation six tasks sound level meter sounds-in-context tasks sounds-in-isolation specific speech sounds Stanford-Binet stimulus tape loop tasks of discrimination tion twenty trials units of difference verbal Vineland visual