Common premotor regions for the perception and production of prosody and correlations with empathy and prosodic ability.
Common premotor regions for the perception and production of prosody and correlations with empathy and prosodic ability.
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DOI：
10.1371/journal.pone.0008759
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发表时间：
2010-01-20
期刊：
影响因子：
3.7
通讯作者：
Gheytanchi A
中科院分区：
文献类型：
--
作者：
Aziz-Zadeh L;Sheng T;Gheytanchi A
韵律是言语的旋律和语调，包括节奏、音速、音调和音质，以将语言和情感信息从一个人传递到另一个人。人类社会交流的一个重要组成部分取决于对另一个人韵律语调的解释和回应，以及一个人自己产生韵律语音的能力。然而，关于韵律的感知和产生是否有共同的神经过程，以及如果是这样，这些过程可能与个体社交能力的差异有何关联，几乎没有研究。本研究的目的是确定韵律的感知和产生在多大程度上依赖于共享的神经系统。使用功能磁共振成像技术，测量了在不同韵律语调下感知和产生无意义短语的神经活动。在运动前区域，特别是左下额回(IFG)，发现了韵律产生和感知的重叠区域。进一步发现，这些区域的活动与一个人在两种不同的情感同理心测量以及韵律产生能力的测量上得分有多高有关。这些数据首次表明，对韵律产生很重要的区域也可用于韵律感知，以及社会交流和社会理解的其他方面，如移情和韵律能力。
Prosody, the melody and intonation of speech, involves the rhythm, rate, pitch and voice quality to relay linguistic and emotional information from one individual to another. A significant component of human social communication depends upon interpreting and responding to another person's prosodic tone as well as one's own ability to produce prosodic speech. However there has been little work on whether the perception and production of prosody share common neural processes, and if so, how these might correlate with individual differences in social ability. The aim of the present study was to determine the degree to which perception and production of prosody rely on shared neural systems. Using fMRI, neural activity during perception and production of a meaningless phrase in different prosodic intonations was measured. Regions of overlap for production and perception of prosody were found in premotor regions, in particular the left inferior frontal gyrus (IFG). Activity in these regions was further found to correlate with how high an individual scored on two different measures of affective empathy as well as a measure on prosodic production ability. These data indicate, for the first time, that areas that are important for prosody production may also be utilized for prosody perception, as well as other aspects of social communication and social understanding, such as aspects of empathy and prosodic ability.
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