Temporal integration of speech prosody is shaped by language experience: An fMRI study
Temporal integration of speech prosody is shaped by language experience: An fMRI study
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DOI：
10.1016/s0093-934x(02)00505-9
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发表时间：
2003-03-01
影响因子：
2.5
通讯作者：
Lurito, J
中科院分区：
文献类型：
--
作者：
Gandour, J;Dzemidzic, M;Lurito, J
作为语音感知基础的半球功能的差异可能与韵律特征（例如，音调）跨度。汉语的声调和语调都是由音高轮廓的变化来表示的，它们分别跨越较短的（局部的）和较长的（全局的）时间域。这项跨语言（中文和英文）的研究使用功能磁共振成像显示，音高轮廓与音调只在中国听众的左半球处理，而音高轮廓与语调主要是在右半球处理。这些研究结果反对认为语音韵律的各个方面都偏侧到右半球，并促进了这样一种想法，即不同大小的时间整合窗口反映了神经生物学适应，以满足特定语言的“韵律需求”。(C)2003 Elsevier Science（美国）。All rights reserved.
Differences in hemispheric functions underlying speech perception may be related to the size of temporal integration windows over which prosodic features (e.g., pitch) span in the speech signal. Chinese tone and intonation, both signaled by variations in pitch contours, span over shorter (local) and longer (global) temporal domains, respectively. This cross-linguistic (Chinese and English) study uses functional magnetic resonance imaging to show that pitch contours associated with tones are processed in the left hemisphere by Chinese listeners only, whereas pitch contours associated with intonation are processed predominantly in the right hemisphere. These findings argue against the view that all aspects of speech prosody are lateralized to the right hemisphere, and promote the idea that varying-sized temporal integration windows reflect a neurobiological adaptation to meet the 'prosodic needs' of a particular language. (C) 2003 Elsevier Science (USA). All rights reserved.