Effects of linguistic correlates of stuttering on Emg activity in nonstuttering speakers.
Effects of linguistic correlates of stuttering on Emg activity in nonstuttering speakers.
复制标题
口吃的语言相关性对非口吃说话者的肌电活动的影响。
DOI：
--
复制
发表时间：
1995
期刊：
影响因子：
--
通讯作者：
H. Peters
中科院分区：
文献类型：
--
作者：
P. van Lieshout;C. Starkweather;W. Hulstijn;H. Peters
在这项研究中，研究了与已知对口吃有影响的语言因素相关的上唇和下唇综合肌电图（IEMG）振幅和时间测量的变化。不口吃的受试者首先阅读并口头表达不同长度的句子（句子长度因素），其中无意义但语音上适当的字符串在句子中的位置（单词位置因素）和大小（单词大小因素）有所不同。据推测，初始位置的单词、较长的单词和较长句子中的单词的重音、元音圆角手势的产生将以 IEMG 幅度的特定变化为特征，这将反映言语运动需求的增加，直观地定义为发音努力。基本上，研究结果证实了我们的假设，表明句子初始位置的单词具有较短的单词和元音持续时间，并且 IEMG 活动增加。同样，我们发现较长单词的元音持续时间较短，并且在句子的最终位置中 IEMG 活动增加。对于较长的句子，我们发现语速明显增加，但与我们的预期相反，IEMG 活动减少。据推测，这可能与使用减少运动策略以允许更高的语速和增强的协同发音有关。人们讨论了这些发现对正常言语产生的影响，以及它们对解释口吃行为的可能影响。为此，我们的数据可以说明为什么口吃者在这些口吃的语言位点上可能会面临更高的口吃风险，以及为什么他们可能会提出一种战略解决方案来减少言语产生中的运动需求。这项研究的基本结果表明，高阶（语言）规范可以对言语运动产生产生明显的影响。
In this study changes in upper lip and lower lip integrated electromyographic (IEMG) amplitude and temporal measures related to linguistic factors known for their influence on stuttering were investigated. Nonstuttering subjects first read and then verbalized sentences of varying length (sentence length factor), in which meaningless but phonologically appropriate character strings were varied in their position within the sentence (word position factor) and their size (word size factor). It was hypothesized that the production of stressed, vowel-rounding gestures of words in initial position, longer words, and words in longer sentences would be characterized by specific changes in IEMG amplitude that would reflect an increase in speech motor demands, intuitively defined as articulatory effort. Basically, the findings corroborated our assumptions, showing that words in sentence initial position have shorter word and vowel durations in combination with an increase in IEMG activity. Similarly, we found shorter vowel durations for longer words, and in sentence final position an increase in IEMG activity. For longer sentences we found a clear increase in speech rate, but contrary to our expectations a decrease in IEMG activity. It was speculated that this might relate to the use of a movement reduction strategy to allow higher speech rates with increased coarticulation. These findings were discussed both for their implications in normal speech production, as well as for their possible implications for explaining stuttering behavior. To this end our data can illustrate both why stutterers might run a higher risk of stuttering at these linguistic loci of stuttering, and why they might come up with a strategic solution to decrease the motor demands in speech production. The basic outcome of this study shows that higher order (linguistic) specifications can have clear effects on speech motor production.
口吃：一种运动障碍。
DOI：
--
发表时间：
1980
期刊：
Journal of speech and hearing research
影响因子：
--
作者：
Zimmermann,G
通讯作者：
Zimmermann,G
双唇闭合运动期间语速对上唇、下唇和下颌峰值速度排序的影响。
DOI：
10.1121/1.1894645
发表时间：
1991
期刊：
The Journal of the Acoustical Society of America
影响因子：
--
作者：
DeNil,LF;Abbs,JH
通讯作者：
Abbs,JH