Hayashi M, Takamura I, Kohara H, Yamazaki K
Department of Psychiatry and Behavioral Science, School of Medicine, Tokai University, Kanagawa, Japan.
Tokai J Exp Clin Med. 1989 Sep;14(4):339-45.
A neurolinguistic study of 20 high functioning right-handed autistic children (19 males and 1 female) was carried out using a dichotic listening test of two-syllabic meaningful words with which to detect the level of binaural separation ability and the condition of hemispheric lateralization of language by examining the degree of ear advantage. The autistic children ranged from 5 to 15 years in age. Their IQ ranged from mildly retarded to normal. (The mean IQ was 67.6 and the mean mental age was 5 yr. 9 mo.). We compared them with non-autistic mentally retarded and normal children as controls, being matched by mental age and right handedness. The autistic children were found to be significantly lower on the level of binaural separation ability than the controls and to have a clearly higher incidence of a left ear advantage than the controls. The autistic and mentally retarded children showed lower advantage than normal children. These results indicate that the autistic children have a dysfunction or immaturity of the central auditory nervous system and an abnormality in the process of hemispheric lateralization of language.
对20名高功能右利手自闭症儿童（19名男性和1名女性）进行了一项神经语言学研究，采用双音节有意义单词的双耳分听测试，通过检查耳优势程度来检测双耳分离能力水平和语言半球侧化情况。自闭症儿童年龄在5至15岁之间。他们的智商从轻度智障到正常不等。（平均智商为67.6，平均心理年龄为5岁9个月。）我们将他们与非自闭症智障儿童和正常儿童作为对照进行比较，按照心理年龄和右利手进行匹配。结果发现，自闭症儿童的双耳分离能力水平明显低于对照组，左耳优势的发生率明显高于对照组。自闭症儿童和智障儿童表现出的优势低于正常儿童。这些结果表明，自闭症儿童存在中枢听觉神经系统功能障碍或不成熟，以及语言半球侧化过程异常。
