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Physiological and acoustic Study on the Production of Focus

焦点产生的生理和声学研究

基本信息

批准号：
08610522
负责人：
KIRITANI Shigeru
金额：
$ 1.34万
依托单位：
The University of Tokyo
依托单位国家：
日本
项目类别：
Grant-in-Aid for Scientific Research (C)
财政年份：
1996
资助国家：
日本
起止时间：
1996 至 1997
项目状态：
已结题

来源：
https://kaken.nii.ac.jp/grant/KAKENHI-PROJECT-08610522/
关键词：
focus laryngeal EMG x-ray microbeam jaw movement pitch pattern syntactic ambiguity

项目摘要

Physiological studies on the production of the focus were conducted through laryngeal electromyography and x-ray microbeam observation of jaw movements. Perceptual studies were also conducted to examine the effect of the prosodic patterns associated with the focus in the perception of the sentence structure.1. Electromyographic study of focus production.A new method of correlation analysis between cricothyroid muscle activity and the resulting FO contour was applied to speech material varying in accentedness and focal conditions. It was found that the strong suppression of the sternohyoid muscle activity under focus. The suppression was stronger in unaccented phrases than in accented ones. The suppression and its relationship to accent can be interpreted proposed based on the notion of laryngeal state function proposed in Atkinson (1978).2. X-ray microbeam study of jaw movement in the production of focus.It has generally been acknowledged that the fundamental frequency plays a most important role in the production of the focus in Japanese. However, in recent years, it is noted that the focus also affects the segmental features. The present study revealed that the jaw opening in a given accent phrase is larger when the accent phrase is focused. Furthermore, the effect of focus was also seen in a form of the reduction of the jaw opening. Thus, the effect of focus is not a localized phenomenon.Effect of prominence on the perception of the ambiguous sentences.The effects of pitch pattern associated with focus on the syntactic ambiguity resolution of Japanese sentences were studied. The results showed that prosodic cues (pitch pattern) can influence the interpretation of a sentence even when the sentence is strongly semantically biased. The results also showed a limitation to prosodic cues. The prosodic biases alone were not sufficient to fully determine the interpretation of the sentences even when the sentences were neutrally biased semantically.

通过喉肌电图和X射线微束观察下颌运动对焦点产生进行生理研究。还进行了感知研究，以检验与句子结构感知焦点相关的韵律模式的影响。1．焦点产生的肌电图研究。环甲肌活动和由此产生的 FO 轮廓之间的相关性分析的新方法应用于不同重音和焦点条件的语音材料。结果发现，焦点下胸骨舌骨肌活动受到强烈抑制。非重音短语中的抑制比重音短语中的抑制更强烈。抑制及其与重音的关系可以根据Atkinson (1978)提出的喉部状态功能的概念来解释。2． X射线微束研究焦点产生过程中下颌运动。日本人普遍认为基频在焦点产生过程中起着最重要的作用。然而，近年来，人们注意到焦点也影响了细分特征。本研究表明，当重音短语集中时，给定重音短语中的下巴张开得更大。此外，焦点的影响还表现为下巴张开度的减小。因此，焦点效应并不是一种局部现象。显着性对歧义句感知的影响。研究了与焦点相关的音调模式对日语句子句法歧义消解的影响。结果表明，即使句子在语义上存在强烈偏差，韵律线索（音高模式）也会影响句子的解释。结果还表明韵律线索的局限性。即使句子在语义上有中性偏差，仅靠韵律偏差也不足以完全确定句子的解释。