Neural dissociation in the production of lexical versus classifier signs in ASL: distinct patterns of hemispheric asymmetry.
Neural dissociation in the production of lexical versus classifier signs in ASL: distinct patterns of hemispheric asymmetry.
复制标题
DOI：
10.1016/j.neuropsychologia.2008.09.009
复制
发表时间：
2009-01
期刊：
影响因子：
2.6
通讯作者：
Bellugi U
中科院分区：
文献类型：
--
作者：
Hickok G;Pickell H;Klima E;Bellugi U
我们研究了两类美国手语符号，词汇符号和分类符号的生产半球组织。先前的研究发现，左半球在词汇符号的产生中占主导地位，但一些作者推测，分类符号可能在更大程度上涉及右半球，因为它们可以以地形，非分类的方式表示空间信息。21名单侧脑损伤的符号者（13名左半球受损，8名右半球受损）被要求完成一个故事叙述任务，该任务旨在引出词汇符号和分类符号。两种类型的错误的相对频率列表。左半球受损的签名者比右半球受损的签名者产生了更多的词汇错误，而相反的模式举行的分类标志。我们的研究结果认为，这两类ASL标志的半球不对称的不同模式。我们认为，要求编码模拟空间信息的分类标志的生产结果在增加参与的右半球系统。
We examine the hemispheric organization for the production of two classes of ASL signs, lexical signs and classifier signs. Previous work has found strong left hemisphere dominance for the production of lexical signs, but several authors have speculated that classifier signs may involve the right hemisphere to a greater degree because they can represent spatial information in a topographic, non-categorical manner. Twenty-one unilaterally brain damaged signers (13 left hemisphere damaged, 8 right hemisphere damaged) were presented with a story narration task designed to elicit both lexical and classifier signs. Relative frequencies of the two types of errors were tabulated. Left hemisphere damaged signers produced significantly more lexical errors than did right hemisphere damaged signers, whereas the reverse pattern held for classifier signs. Our findings argue for different patterns of hemispheric asymmetry for these two classes of ASL signs. We suggest that the requirement to encode analogue spatial information in the production of classifier signs results in the increased involvement of the right hemisphere systems.
登录
查看更多内容
影响因子：
5.7
作者：
Emmorey, K;Grabowski, T;Damasio, H
通讯作者：
Damasio, H
影响因子：
1.7
作者：
McGuire, PK;Robertson, D;Frith, CD
通讯作者：
Frith, CD
影响因子：
2
作者：
Schembri, A;Jones, C;Burnham, D
通讯作者：
Burnham, D
影响因子：
3.2
作者：
Corina, DP;Jose-Robertson, LS;Braun, AR
通讯作者：
Braun, AR
影响因子：
64.8
作者：
Hickok, G;Bellugi, U;Klima, ES
通讯作者：
Klima, ES