Dokoza Katarina Pavicić, Hedever Mladen, Sarić Jadranka Pavicić
SUVAG Polyclinic, Department of Speech and Language Pathology, Zagreb, Croatia.
Coll Antropol. 2011 Jun;35(2):281-8.
The purpose of this study was to compare the duration and variability of speech segments of children who stutter with those of children who do not stutter and to identify changes in duration and variability of speech segments due to the effect of utterance length. Eighteen children participated (ranging from 6.3 to 7.9 years of age). The experimental task required the children to repeat a single word in isolation and the same word embedded in a sentence. Durations of speech segments and Coefficients of variation (Cv) were defined to assess temporal parameters of speech. Significant differences were found in the variability of speech segments on the sentence level, but not in duration. The findings supported the assumption that linguistic factors pose direct demands on the speech motor system and that the extra duration of speech segments observed in the speech of stuttering adults may be a kind of compensation strategy.
本研究的目的是比较口吃儿童与非口吃儿童言语片段的时长和变异性，并确定由于话语长度的影响而导致的言语片段时长和变异性的变化。18名儿童参与了研究（年龄在6.3岁至7.9岁之间）。实验任务要求儿童单独重复一个单词以及重复嵌入句子中的同一个单词。定义了言语片段的时长和变异系数（Cv）以评估言语的时间参数。在句子层面的言语片段变异性方面发现了显著差异，但在时长方面未发现显著差异。这些发现支持了以下假设：语言因素对言语运动系统提出了直接要求，并且在口吃成年人的言语中观察到的言语片段额外时长可能是一种补偿策略。
