Bartle Carly J, Goozée Justine V, Murdoch Bruce E
School of Health and Rehabilitation Sciences, The University of Queensland, Brisbane, Queensland, Australia.
Clin Linguist Phon. 2007 Mar;21(3):189-210. doi: 10.1080/02699200601007865.
The effect of increasing word length on the articulatory dynamics (i.e. duration, distance, maximum acceleration, maximum deceleration, and maximum velocity) of consonant production in acquired apraxia of speech was investigated using electromagnetic articulography (EMA). Tongue-tip and tongue-back movement of one apraxic patient was recorded using the AG-200 EMA system during word-initial consonant productions in one, two, and three syllable words. Significantly deviant articulatory parameters were recorded for each of the target consonants during one, two, and three syllables words. Word length effects were most evident during the release phase of target consonant productions. The results are discussed with respect to theories of speech motor control as they relate to AOS.
运用电磁关节造影术（EMA）研究了词长增加对后天性言语失用症中辅音发音的关节动力学（即持续时间、距离、最大加速度、最大减速度和最大速度）的影响。使用AG - 200 EMA系统记录了一名言语失用症患者在单音节、双音节和三音节词的词首辅音发音过程中舌尖和舌背的运动。在单音节、双音节和三音节词中，每个目标辅音的发音参数都有显著偏差。词长效应在目标辅音发音的释放阶段最为明显。结合与后天性言语失用症相关的言语运动控制理论对研究结果进行了讨论。
