Hubbard C P, Prins D
Department of Communication Sciences and Disorders, University of Wisconsin-Milwaukee 53201.
J Speech Hear Res. 1994 Jun;37(3):564-71. doi: 10.1044/jshr.3703.564.
The correspondence of stuttering and linguistic characteristics of utterances has led to speculations that a source factor for stutter events is a speaker's inadequate formulation of the speech code. In this study, the effects of word frequency and syllabic stress pattern on stuttering frequency were evaluated using specially designed sentences read orally by 10 adult stutterers and 10 adult nonstutterers. Results revealed statistically significant differences in stuttering frequency between sentences with low and high frequency words, but not between sentences with regular and irregular syllabic stress patterns. The significant rank order correlation between stutterers' word recognition vocabulary scores and amount of stuttering on sentences with high versus low frequency words affirmed that word familiarity, not simply word prominence, is an important factor contributing to the word frequency effect. The outcomes are discussed in relation to current psycholinguistic theories of stuttering, proposing that word access and phonological encoding difficulties could be a source factor that underlies the occurrence of stutter events.
口吃事件的一个源头因素是说话者对言语编码的表述不充分。在本研究中，使用由10名成年口吃者和10名成年非口吃者口头朗读的经过特殊设计的句子，评估了词频和音节重音模式对口吃频率的影响。结果显示，高频词和低频词的句子之间在口吃频率上存在统计学上的显著差异，但规则和不规则音节重音模式的句子之间不存在这种差异。口吃者的单词识别词汇分数与高频词和低频词句子的口吃量之间存在显著的等级顺序相关性，这证实了单词熟悉度而非仅仅是单词突出度，是导致词频效应的一个重要因素。结合当前关于口吃的心理语言学理论对这些结果进行了讨论，提出单词获取和语音编码困难可能是口吃事件发生的一个源头因素。
