Functional segments in tongue movement
Functional segments in tongue movement
复制标题
DOI：
10.1080/02699200410003583
复制
发表时间：
2004-09-01
影响因子：
1.2
通讯作者：
Iskarous, K
中科院分区：
文献类型：
--
作者：
Stone, M;Epstein, MA;Iskarous, K
舌头是一个可变形的物体，通过压缩或扩展局部功能段来运动。对于任何单个音素，这些功能舌段可以朝相似或相反的方向移动，也可以同步或不同步地达到目标最大值。本文将讨论五个被提议的语段在言语产生中的独立性。三项研究使用超声波和标记电影核磁共振来探索舌段的独立性。舌段之间的高相关性意味着被动的生物力学约束，低相关性意味着主动的独立控制。相关模式中既有生理上的限制，也有较高水平的语言限制。相邻节段(正)和远节段(负)之间的高度相关性支持了生理约束。随着任务音位内容的变化，语段相关性支持了语言限制。
The tongue is a deformable object, and moves by compressing or expanding local functional segments. For any single phoneme, these functional tongue segments may move in similar or opposite directions, and may reach target maximum synchronously or not. This paper will discuss the independence of five proposed segments in the production of speech. Three studies used ultrasound and tagged Cine-MRI to explore the independence of the tongue segments. High correlations between tongue segments would suggest passive biomechanical constraints and low correlations would suggest active independent control. Both physiological and higher level linguistic constraints were seen in the correlation patterns. Physiological constraints were supported by high correlations between adjacent segments (positive) and distant segments (negative). Linguistic constraints were supported by segmental correlations that changed with the phonemic content of the task.