The timing of head movements: The role of prosodic heads and edges
The timing of head movements: The role of prosodic heads and edges
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DOI：
10.1121/1.4986649
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发表时间：
2017-06-01
影响因子：
2.4
通讯作者：
Prieto, Pilar
中科院分区：
文献类型：
--
作者：
Esteve-Gibert, Nuria;Borras-Comes, Joan;Prieto, Pilar
本研究考察了韵律头（重音音节）和韵律边（韵律词和语调短语边界）的位置对头部运动时间的影响。手势动作和韵律事件在语篇中往往是暂时一致的，手势最突出的部分通常与语音中韵律突出的音节一致。然而，语调短语边界位置对手势语音对齐模式的影响却知之甚少。24名加泰罗尼亚语使用者在不同的韵律条件下（重音起始、重音中间和重音结束）产生自发的（实验1）和半自发的具有确认功能的头部手势（实验2）。结果表明：(a)头部运动的范围是与之相关的重点韵律词，(b)重点韵律词的左边缘决定手势突出间隔的开始位置，(c)手势峰值（或顶点）的语音锚定位置取决于重音音节的位置和到即将到来的语调短语边界的距离。这些结果表明，韵律的头部和边缘对头部运动的时间有影响，因此韵律结构在共语手势的时间中起着核心作用。(C) 2017年美国声学学会。
This study examines the influence of the position of prosodic heads (accented syllables) and prosodic edges (prosodic word and intonational phrase boundaries) on the timing of head movements. Gesture movements and prosodic events tend to be temporally aligned in the discourse, the most prominent part of gestures typically being aligned with prosodically prominent syllables in speech. However, little is known about the impact of the position of intonational phrase boundaries on gesture-speech alignment patterns. Twenty-four Catalan speakers produced spontaneous (experiment 1) and semi-spontaneous head gestures with a confirmatory function (experiment 2), along with phrase-final focused words in different prosodic conditions (stress-initial, stress-medial, and stress-final). Results showed (a) that the scope of head movements is the associated focused prosodic word, (b) that the left edge of the focused prosodic word determines where the interval of gesture prominence starts, and (c) that the speech-anchoring site for the gesture peak (or apex) depends both on the location of the accented syllable and the distance to the upcoming intonational phrase boundary. These results demonstrate that prosodic heads and edges have an impact on the timing of head movements, and therefore that prosodic structure plays a central role in the timing of co-speech gestures. (C) 2017 Acoustical Society of America.