Mismatch negativity to pitch contours is influenced by language experience
Mismatch negativity to pitch contours is influenced by language experience
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DOI：
10.1016/j.brainres.2006.10.064
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发表时间：
2007-01-12
期刊：
影响因子：
2.9
通讯作者：
Gandour, Jackson T.
中科院分区：
文献类型：
--
作者：
Chandrasekaran, Bharath;Krishnan, Ananthanarayan;Gandour, Jackson T.
本研究采用错配负波（MMN）诱发反应，探讨了语言经验对前注意皮层处理语言相关音高轮廓的影响。汉语和英语被试分别接受汉语普通话声调刺激，同时采用被动oddball范式诱发失匹配负波反应。两个古怪的条件下构建了一个共同的偏差，一个低下降上升轮廓音（T3）。一个条件包括两个音调，它们在声学上彼此相似（T2/T3：T2，高上升轮廓=标准）。另一个条件是由两个声音彼此不同的音调组成（T1/T3：T1，高电平=标准）。这些音调对使我们能够评估是否不同程度的音高运动之间的相似性施加差异影响前注意音高处理。结果表明，在T1/T3条件下，汉语组的MMN平均波幅大于英语组。T2/T3条件下未发现组间差异。仅中国组T1/T3条件下的平均MMN振幅大于T2/T3条件。凭借这些语言群体的差异，我们推断，早期皮质处理的音高轮廓可能是由一个特定的语言的音高模式的声学尺寸的相对显着性。(c)2006 Elsevier B.V.保留所有权利。
A cross-language study utilizing the mismatch negativity (MMN) evoked response was conducted to explore the influence of language experience on the preattentive cortical processing of linguistically relevant pitch contours. Chinese and English subjects were presented with Mandarin Chinese tones while the mismatch negativity (MMN) response was elicited using a passive oddball paradigm. Two oddball conditions were constructed with a common deviant, a low falling rising contour tone (T3). One condition consisted of two tones that are acoustically similar to one another (T2/T3: T2, high rising contour= standard). The other condition consisted of two tones that are acoustically dissimilar to one another (T1/T3: T1, high level= standard). These tonal pairs enabled us to assess whether different degrees of similarity between pitch movements exert a differential influence on preattentive pitch processing. Results showed that the mean MMN amplitude of the Chinese group was larger than that of the English group for the T1/T3 condition. No group differences were found for the T2/T3 condition. The mean MMN amplitude was larger for the T1/T3 relative to the T2/T3 condition for the Chinese group only. By virtue of these language group differences, we infer that early cortical processing of pitch contours may be shaped by the relative saliency of acoustic dimensions underlying the pitch patterns of a particular language. (c) 2006 Elsevier B.V. All rights reserved.