Department of Linguistics, University of California, Berkeley.
Cogn Sci. 2009 Jul;33(5):839-79. doi: 10.1111/j.1551-6709.2009.01037.x. Epub 2009 Apr 27.
Temporal patterns in human movement, and in speech in particular, occur on multiple timescales. Regularities in such patterns have been observed between speech gestures, which are relatively quick movements of articulators (e.g., tongue fronting and lip protrusion), and also between rhythmic units (e.g., syllables and metrical feet), which occur more slowly. Previous work has shown that patterns in both domains can be usefully modeled with oscillatory dynamical systems. To investigate how rhythmic and gestural domains interact, an experiment was conducted in which speakers performed a phrase repetition task, and gestural kinematics were recorded using electromagnetic articulometry. Variance in relative timing of gestural movements was correlated with variance in rhythmic timing, indicating that gestural and rhythmic systems interact in the process of planning and producing speech. A model of rhythmic and gestural planning oscillators with multifrequency coupling is presented, which can simulate the observed covariability between rhythmic and gestural timing.
人类运动的时间模式，尤其是言语，发生在多个时间尺度上。在言语手势之间，即构音器官（如舌前位和唇突出）的相对快速运动之间，以及在节奏单元（如音节和韵律脚）之间，也观察到了这种模式的规律性。先前的研究表明，这两个领域的模式都可以用振荡动力系统进行有效地建模。为了研究节奏域和手势域如何相互作用，进行了一项实验，其中说话者执行短语重复任务，并使用电磁发音仪记录运动学。手势运动的相对定时方差与节奏定时方差相关，这表明在计划和产生言语的过程中，手势和节奏系统相互作用。提出了一个具有多频耦合的节奏和手势规划振荡器模型，该模型可以模拟观察到的节奏和手势定时之间的可变性。
