Effects of length and linguistic complexity on temporal acoustic measures in apraxia of speech.
Effects of length and linguistic complexity on temporal acoustic measures in apraxia of speech.
复制标题
长度和语言复杂性对言语失用症时间声学测量的影响。
DOI：
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发表时间：
1996
期刊：
影响因子：
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通讯作者：
M. McNeil
中科院分区：
文献类型：
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作者：
E. Strand;M. McNeil
本研究的目的是探讨不同长度和语言类型的话语对语用者模仿言语的时间声学特征的影响。在生成三种反应类型：单词、单词串和句子时，研究了元音持续时间和两个词间段持续时间。研究了单词的三种长度条件，单词串的两种长度条件，句子的三种长度条件，共八个实验条件。在所有情况下，失用者的元音和词间段持续时间都明显长于对照组。言语失用者在句子语境中发出的元音和词间段持续时间总是比在单词语境中发出的长。此外，与单词条件相比，语用说话者在句子中的词段持续时间的主体内和主体间变异性要大得多，而对照组说话者在句子生产中表现出更大的同质性。句子生成与单词或单词字符串生成的持续时间和可变性的差异暗示了不同语言刺激下执行运动程序的不同机制。
The purpose of this study was to examine the effects of varying length and linguistic utterance types on temporal acoustic characteristics of the imitative speech of apraxic speakers. Vowel duration and two between-word segment durations were examined during the production of three response types: words, word-strings, and sentences. Three length conditions were studied in words, two length conditions for word-strings, and three length conditions for sentences, yielding eight experimental conditions. Apraxic speakers exhibited significantly longer vowel and between-word segment durations than control speakers in all conditions. Apraxic speakers consistently produced longer vowel and between-word segment durations in sentence contexts than in word contexts. Further, intrasubject and intersubject variability for between-word segment durations were substantially greater for the apraxic speakers in sentences compared to word conditions, whereas control speakers exhibited greater homogeneity in sentence production. The differences in duration and variability in sentence production versus word or word-string production imply different mechanisms for executing motor programs for varying linguistic stimuli.
言语失用时的嘴唇运动。
DOI：
10.1044/jshr.3203.512
发表时间：
1989
期刊：
Journal of speech and hearing research
影响因子：
--
作者：
Robin,DA;Bean,C;Folkins,JW
通讯作者：
Folkins,JW