Smith A
Department of Audiology and Speech Sciences, Purdue University, West Lafayette, Indiana 47907.
Crit Rev Oral Biol Med. 1992;3(3):233-67. doi: 10.1177/10454411920030030401.
Rapid, complex movements of orofacial structures are essential to produce the sounds of speech. A central problem in speech production research is to discover the neural sources that generate the control signals supplied to motoneurons during speaking. Speech movement production appears to share organizational principles with other motor behaviors; thus speech movements probably arise from an interaction of centrally generated command signals with sensory information. That speech movements are ultimately linked to the perception of language, however, has led many investigators to suggest that speech movement control involves unique features, features that may be linked to abstract linguistic units.
口面部结构快速、复杂的运动对于发出语音至关重要。言语产生研究中的一个核心问题是发现那些在说话过程中产生供应给运动神经元的控制信号的神经源。言语运动产生似乎与其他运动行为共享组织原则；因此，言语运动可能源于中枢产生的指令信号与感觉信息的相互作用。然而，言语运动最终与语言感知相关联，这使得许多研究者认为言语运动控制涉及独特的特征，这些特征可能与抽象的语言单位相关。
