Zebrowski P M
Department of Speech Pathology and Audiology, University of Iowa, Iowa City 52245.
J Speech Hear Res. 1991 Jun;34(3):483-91. doi: 10.1044/jshr.3403.183.
This study compared the duration of within-word disfluencies and the number of repeated units per instance of sound/syllable and whole-word repetitions of beginning stutterers to those produced by age- and sex-matched nonstuttering children. Subjects were 10 stuttering children [9 males and 1 female; mean age 4:1 (years:months); age range 3:2-5:1), and 10 nonstuttering children (9 males and 1 female; mean age 4:0; age range: 2:10-5:1). Mothers of the stuttering children reported that their children had been stuttering for 1 year or less. One 300-word conversational speech sample from each of the stuttering and nonstuttering children was analyzed for (a) mean duration of sound/syllable repetition and sound prolongation, (b) mean number of repeated units per instance of sound/syllable and whole-word repetition, and (c) various related measures of the frequency of all between- and within-word speech disfluencies. There were no significant between-group differences for either the duration of acoustically measured sound/syllable repetitions and sound prolongations or the number of repeated units per instance of sound/syllable and whole-word repetition. Unlike frequency and type of speech disfluency produced, average duration of within-word disfluencies and number of repeated units per repetition do not differentiate the disfluent speech of beginning stutterers and their nonstuttering peers. Additional analyses support findings from previous perceptual work that type and frequency of speech disfluency, not duration, are the principal characteristics listeners use in distinguishing these two talker groups.
本研究比较了初发性口吃儿童单词内不流畅的时长、每例声音/音节重复和全词重复的重复单元数量，与年龄和性别匹配的非口吃儿童的情况。研究对象为10名口吃儿童（9名男性和1名女性；平均年龄4岁1个月；年龄范围3岁2个月至5岁1个月），以及10名非口吃儿童（9名男性和1名女性；平均年龄4岁0个月；年龄范围2岁10个月至5岁1个月）。口吃儿童的母亲报告称，他们的孩子口吃时间为1年或更短。对每名口吃和非口吃儿童的一个300字的对话语音样本进行了分析，内容包括：（a）声音/音节重复和声音延长的平均时长；（b）每例声音/音节和全词重复的重复单元平均数量；（c）所有词间和词内言语不流畅频率的各种相关测量指标。在声学测量的声音/音节重复和声音延长的时长，以及每例声音/音节和全词重复的重复单元数量方面，两组之间均无显著差异。与产生的言语不流畅频率和类型不同，单词内不流畅的平均时长和每次重复的重复单元数量并不能区分初发性口吃儿童和他们非口吃的同龄人。进一步分析支持了先前感知研究的结果，即言语不流畅的类型和频率而非时长，是听众区分这两组说话者的主要特征。
