維持期感覚性失語症者に対する語音弁別訓練の検討--単音節・有意味二音節の訓練が聴覚的理解力に及ぼす効果

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Two types of monosyllabic speech discrimination training and two types of meaningful disyllabic speech discrimination training were conducted in a man with chronic Wernicke's aphasia. The effects of training on speech discrimination ability and auditory comprehension were investigated. The patient was a 48-year-old, right-handed male who started training about 4 years after putaminal hemorrhage. The training comprised a daily home task for a total of about 4 months, and the training results were measured once a week by a speech, language hearing therapist. In the monosyllabic speech discrimination training, a significant increase was seen in speech discrimination ability both in training with and without using written characters. In the speech discrimination training with meaningful disyllabic words, a better effect of training was seen with a method using oral reading of Kanji characters compared with a method of listening to sounds and comparing them with written characters. In an investigation of the effect using a Test of Lexical Processing in Aphasia for auditory comprehension, no change was observed with monosyllabic speech discrimination training; however, a significant increase in the number of correct answers was observed with speech discrimination training using meaningful disyllabic words.