The dynamic nature of language lateralization: effects of lexical and prosodic factors
The dynamic nature of language lateralization: effects of lexical and prosodic factors
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DOI：
10.1016/s0028-3932(02)00315-9
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发表时间：
2003-01-01
期刊：
影响因子：
2.6
通讯作者：
Johnson, RA
中科院分区：
文献类型：
--
作者：
Grimshaw, GM;Kwasny, KM;Johnson, RA
在双耳分听中，右耳在语言任务上的优势反映了左半球的专业化，左耳在韵律任务上的优势反映了右半球的专业化。三个实验使用响应手部操作和两分听力任务来区分语言和韵律处理的知觉不对称的直接访问（相对专业化）和胼胝体中继（绝对专业化）解释。实验一发现了语言加工中的直接通达和韵律加工中的胼胝体中继的证据。语言处理的直接访问被发现依赖于词汇状态（实验2）和情感韵律（实验3）。结果被解释在一个动态模型的半球的专业化，其中右半球的贡献，语言处理出现时，刺激的话，当他们说的情感韵律。(C)2003爱思唯尔科技有限公司版权所有。
In dichotic listening, a right ear advantage for linguistic tasks reflects left hemisphere specialization, and a left ear advantage for prosodic tasks reflects right hemisphere specialization. Three experiments used a response hand manipulation with a dichotic listening task to distinguish between direct access (relative specialization) and callosal relay (absolute specialization) explanations of perceptual asymmetries for linguistic and prosodic processing. Experiment 1 found evidence for direct access in linguistic processing and callosal relay in prosodic processing. Direct access for linguistic processing was found to depend on lexical status (Experiment 2) and affective prosody (Experiment 3). Results are interpreted in terms of a dynamic model of hemispheric specialization in which right hemisphere contributions to linguistic processing emerge when stimuli are words, and when they are spoken with affective prosody. (C) 2003 Elsevier Science Ltd. All rights reserved.