HEMISPHERIC-SPECIALIZATION AND THE LANGUAGE ABILITIES OF AUTISTIC-CHILDREN
HEMISPHERIC-SPECIALIZATION AND THE LANGUAGE ABILITIES OF AUTISTIC-CHILDREN
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DOI：
10.2307/1130422
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发表时间：
1986-12-01
影响因子：
4.6
通讯作者：
GALPERT, L
中科院分区：
文献类型：
--
作者：
DAWSON, G;FINLEY, C;GALPERT, L
本研究旨在探讨自闭症儿童言语加工的大脑半球特化模式与语言能力的关系。17名6-18岁的男性自闭症儿童和17名年龄和性别相匹配的正常儿童参加了测试。大脑半球不对称性的衡量标准是左右半球头皮部位对语言和非语言听觉刺激的平均皮层诱发反应的差异。对自闭症受试者进行了一系列全面的语言测试。自闭症儿童S对语言刺激反应的大脑半球不对称方向与正常儿童显著不同。大多数自闭症儿童表现出反转(右半球占优势)，但不一定减少的大脑半球不对称模式。语言能力较高的自闭症儿童更有可能表现出正常的大脑半球不对称方向。本文讨论了自闭症儿童在获得口语时，从右脑到左脑进行言语加工的可能性。
The purpose of the present study was to investigate the relationship between patterns of hemispheric specialization for speech processing and language ability in autistic children. 17 male autistic children, 6-18 years of age, and 17 normal children, matched for chronological age and gender, were tested. Measures of hemisphere asymmetry were differences in the averaged cortical evoked responses taken from right and left hemisphere scalp locations to linguistic and nonlinguistic auditory stimuli. A comprehensive battery of language tests was administered to autistic subjects. Autistic children''s direction of hemispheric asymmetry in response to linguistic stimuli differed significantly from that of normal subjects. The majority of autistic subjects showed reversed (right hemisphere dominant), but not necessarily reduced, patterns of hemispheric asymmetry. Autistic children with more advanced language abilities were more likely to exhibit a normal direction of hemispheric asymmetry. The possibility that a shift from right to left hemisphere processing of speech occurs as the autistic child acquires spoken language is discussed.