Folkins J W, Brown C K
Department of Speech Pathology and Audiology, University of Iowa City 52242.
J Acoust Soc Am. 1987 Dec;82(6):1919-24. doi: 10.1121/1.395687.
Six studies purporting to demonstrate complementary covariation in lip and jaw activity during speech are reviewed. The statistical procedures used to assess interactions among the upper lip, lower lip, and jaw movements are discussed for four different experiments analyzing repetition-to-repetition movement variation. The findings from two studies analyzing repetition-to-repetition variation for interactions in electromyographic activity recorded from either the jaw musculature or the labial musculature also are evaluated. It is concluded that these studies do not provide convincing evidence of complementary covariation among the articulators or the muscles.
本文回顾了六项旨在证明言语过程中嘴唇和下颚活动存在互补共变关系的研究。针对四项分析重复运动变化的不同实验，讨论了用于评估上唇、下唇和下颚运动之间相互作用的统计程序。同时，对两项分析下颚肌肉组织或唇部肌肉组织记录的肌电活动相互作用的重复变化的研究结果也进行了评估。研究得出结论，这些研究并未提供令人信服的证据来证明发音器官或肌肉之间存在互补共变关系。
