Freeman F J, Ushijima T
J Speech Hear Res. 1978 Sep;21(3):538-62. doi: 10.1044/jshr.2103.538.
Laryngeal muscle activity during fluent and stuttered utterances was investigated via electromyography. Analysis revealed that stuttering was accompanied by high levels of laryngeal muscle activity and disruption of normal reciprocity between abductor and adductor muscle groups. Results are interpreted as demonstrating the existence of a laryngeal component in stuttering and showing a strong correlation between abnormal laryngeal muscle activity and moments of stuttering.
通过肌电图研究了流畅言语和口吃言语期间的喉部肌肉活动。分析表明，口吃伴随着高水平的喉部肌肉活动以及外展肌和内收肌群之间正常相互作用的破坏。结果被解释为证明口吃中存在喉部成分，并表明异常喉部肌肉活动与口吃时刻之间存在强烈相关性。
