VERBAL AND COGNITIVE SEQUELAE FOLLOWING UNILATERAL LESIONS ACQUIRED IN EARLY-CHILDHOOD
VERBAL AND COGNITIVE SEQUELAE FOLLOWING UNILATERAL LESIONS ACQUIRED IN EARLY-CHILDHOOD
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DOI：
10.1080/01688638508401242
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发表时间：
1985-01-01
影响因子：
2.2
通讯作者：
WHITAKER, HA
中科院分区：
文献类型：
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作者：
ARAM, DM;EKELMAN, BL;WHITAKER, HA
18 个月期间，8 名左半球受损儿童和 8 名右半球受损儿童。研究人员将 8 岁和 8 岁的受试者与对照组进行了一系列智力和语言测量的比较。左侧和右侧病变受试者的智商分数都低于对照组，但大多数功能都在正常范围内或更高。两个受试者组的词汇理解和表达能力均下降，并且右侧病变受试者比左侧病变受试者的词汇理解和产生程度似乎更严重。相反，与对照组和右侧病变受试者相比，左侧病变受试者的句法生成明显不足。尽管受试者和对照组都包括有发音错误的儿童，但左侧病变组中发音错误的儿童和发音错误的数量最多。最后，在右侧和左侧受损受试者中均观察到流畅性障碍，但在对照组中未观察到。该研究提供了进一步的证据，表明左右半球在语言方面并不等价，并且儿童早期获得的左半球损伤比右半球损伤更严重地损害句法发育。
Eight left-hemisphere lesioned children and 8 right-hemisphere lesioned children between 18 mo. and 8 yr of age were compared to control subjects on a battery of intelligence and language measures. Both left- and right-lesioned subjects had lower IQ scores than their controls, yet most functioned within the normal range or higher. Lexical comprehension and production were depressed in both subject groups and appeared to be depressed to a greater degree in right-lesioned subjects than in those with left lesions. In contrast, syntactic production in left-lesioned subjects was markedly deficient in comparison to controls as well as right-lesioned subjects. Although both subjects and controls included children with articulation errors, the number of misarticulating children and misarticulated sounds was greatest in the left-lesioned group. Finally, fluency disorders were observed in both right- and left-lesioned subjects but were not observed in controls. The study provides further evidence that the right and left hemispheres are not equipotential for language and that left-hemisphere lesions acquired early in childhood impair syntactic development to a greater degree than do right-hemisphere lesions.