Pitch modulates lexical identification in spoken word recognition: ERP and behavioral evidence
Pitch modulates lexical identification in spoken word recognition: ERP and behavioral evidence
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DOI：
10.1016/j.cogbrainres.2004.03.007
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发表时间：
2004-07-01
期刊：
影响因子：
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通讯作者：
Alter, K
中科院分区：
文献类型：
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作者：
Friedrich, CK;Kotz, SA;Alter, K
本研究采用跨通道词片段启动（CMWP）技术记录事件相关电位（ERPs），探讨音高在口语词识别中的作用。在CMWP的口语单词片段中（例如，从Regal（英语：Regal（England））货架]）紧随其后的是视觉目标。与减少的反应时间（RT）一起，已经发现与不相关的目标（例如，re-WIRBEL [英语] burble]）。P350与易化的词汇识别有关[Friedrich，Kotz，Friederici and Gunter（in press），ER-Ps reflect lexical identification in word fragment priming，JOCN]。在本研究中，我们提出了不同的音高轮廓音节启动。每个主孔的一个版本具有应力节距轮廓（例如，re_1），另一个是无应力音调轮廓（例如，re 2）。启动词与目标词相结合，要么在第一个音节上重读（例如，REgel [英语rule]）或第二个音节（例如，reGAL [英语] shelves]）。我们发现P350的振幅降低，并且对于具有与启动的音高匹配的压力模式的目标的反应略快（例如，re_1-REgel）与具有与启动的音高不匹配的应力模式的目标（例如，re_1-reGAL）。本研究用不同材料重复了P350效应，表明音高在口语词识别中起着词汇识别的作用。(C)2004 Elsevier B. V.保留所有权利。
Event-related potentials (ERPs) were recorded in cross-modal word fragment priming (CMWP) to address the function of pitch for the identification of spoken words. In CMWP fragments of spoken words (e.g., retaken from Regal [Engl. shelves]) are immediately followed by visual targets. Together with reduced reaction times (RTs), an ERP deflection named P350 has been found to be reduced for targets, which match the primes (e.g:, in the prime-target pair re-REGAL) as compared to unrelated targets (e.g., re- WIRBEL [Engl. burble]). The P350 has been related to facilitated, lexical identification [Friedrich, Kotz, Friederici and Gunter (in press), ER-Ps reflect lexical identification in word fragment priming, JOCN]. In the present study, we presented syllable primes with different pitch contours. One version of each prime bore a stressed pitch contour (e.g., re_1), the other an unstressed pitch contour (e.g., re 2). Primes were combined with targets being either stressed on the first syllable (e.g., REgel [Engl. rule]) or on the second syllable (e.g., reGAL [Engl. shelves]). We found a reduced amplitude of the P350 and slightly faster reactions for targets with a stress pattern that matched the pitch of the primes (e.g., re_1-REgel) as compared to targets with a stress pattern that did not match the pitch of the primes (e.g., re_1-reGAL). The present study replicates the P350 effect with different material, and indicates that pitch is used for lexical identification in spoken word recognition. (C) 2004 Elsevier B.V. All rights reserved.