Sensitivity to prosodic structure in left-and right-hemisphere-damaged individuals
Sensitivity to prosodic structure in left-and right-hemisphere-damaged individuals
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DOI：
10.1016/s0093-934x(03)00109-3
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发表时间：
2003-11-01
影响因子：
2.5
通讯作者：
Dwivedi, VD
中科院分区：
文献类型：
--
作者：
Baum, SR;Dwivedi, VD
为了确定左（LHD）和右半球损伤（RHD）患者是否对用于句法消歧的韵律信息表现出敏感性，进行了一项实验。根据Marslen-Wilson， Tyler, Warren， Gremer和Lee（1992）的研究，LHD和RHD受试者以及无脑病理（NC）的成年人进行了跨模态词汇决策任务。受试者在执行视觉词汇决策任务的同时，听着韵律一致或不一致的带有附件歧义的句子。结果表明，各单侧受损群体对韵律线索的敏感性存在差异，且与nc群体存在差异。具体来说，RHD组对句子韵律整体不敏感。这与LHD患者相反，他们对韵律操纵有反应，但在意想不到的方向上。结果讨论了目前的假设关于半球侧化的韵律线索。(C) 2003 Elsevier Science（美国）版权所有。
An experiment was conducted in order to determine whether left- (LHD) and right-hemisphere-damaged (RHD) patients exhibit sensitivity to prosodic information that is used in syntactic disambiguation. Following the work of Marslen-Wilson, Tyler, Warren, Gremer, and Lee (1992), a cross-modal lexical decision task was performed by LHD and RHD subjects, as well as by adults without brain pathology (NC). Subjects listened to sentences with attachment ambiguities with either congruent or incongruent prosody, while performing a visual lexical decision task. Results showed that each of the unilaterally damaged populations differed from each other, as well as from the NCs in terms of sensitivity regarding prosodic cues. Specifically, the RHD group was insensitive to sentence prosody as a whole. This was in contrast to the LHD patients, who responded to the prosodic manipulation, but in the unexpected direction. Results are discussed in terms of current hypotheses regarding the hemispheric lateralization of prosodic cues. (C) 2003 Elsevier Science (USA). All rights reserved.