Identification of a /sa/‐/sta/ continuum by normally developing and language‐delayed children
Identification of a /sa/‐/sta/ continuum by normally developing and language‐delayed children
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正常发育和语言发育迟缓儿童对 /sa/‐/sta/ 连续体的识别
DOI：
10.1121/1.2004241
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发表时间：
1978
影响因子：
2.4
通讯作者：
R. Stark
中科院分区：
文献类型：
--
作者：
P. Tallal;R. Stark
先前的研究表明，语言延迟儿童作为一个群体，在处理随时间迅速变化的非言语和言语听觉刺激时受损，但在处理变化较慢的类似刺激时受损[P. Tallal和M.皮尔斯神经心理学博士13，69-74，（1975）]。在本研究中，36名语言延迟儿童和36名对照组儿童被呈现来自a /sa/-/sta/ continuum的标记。合成的音节之间的摩擦偏移和元音共振峰的起始范围从0毫秒/sa/到100毫秒/sta/的沉默的持续时间不同。一个非语言的目标识别程序被用来获得响应。语言延迟儿童在连续体的两个终点上均未受损。然而，他们要么是不一致的反应，整个连续或需要一个显着更长的沉默期比正常识别一个音节为/sta/，证明了在他们的音素边界功能的交叉点的转变。可能解释语言延迟儿童的时间处理困难及其与语言障碍的关系的机制将被讨论。[Work由NINCDS支持。先前的研究表明，语言延迟儿童作为一个群体，在处理随时间迅速变化的非言语和言语听觉刺激时受损，但在处理变化较慢的类似刺激时受损[P. Tallal和M.皮尔斯神经心理学博士13，69-74，（1975）]。在本研究中，36名语言延迟儿童和36名对照组儿童被呈现来自a /sa/-/sta/ continuum的标记。合成的音节之间的摩擦偏移和元音共振峰的起始范围从0毫秒/sa/到100毫秒/sta/的沉默的持续时间不同。一个非语言的目标识别程序被用来获得响应。语言延迟儿童在连续体的两个终点上均未受损。然而，他们要么对整个连续体的反应不一致，要么需要比正常人明显更长的静默期才能将音节识别为/sta/，正如他们音素边界上交叉点的移动所证明的那样。.
Previous studies have demonstrated that language‐delayed children as a group are impaired in processing nonverbal and verbal auditory stimuli that change rapidly over time, but in processing similar stimuli that change more slowly [P. Tallal and M. Piercy, Neuropsychol. 13, 69–74, (1975)]. In the present study, 36 language‐delayed children and 36 controls were presented with tokens from a /sa/—/sta/ continuum. The syllables were synthesized to differ only in the duration of silence between the offset of frication and the onset of vowel formants which ranged from 0 ms in /sa/ to 100 ms in /sta/. A nonverbal target identification procedure was used in obtaining responses. The language‐delayed children were unimpaired on the two end points of the continuum. However, they were either inconsistent in their responses to the entire continuum or required a significantly longer silent period than the normals to identify a syllable as /sta/, as evidenced by a shift in the crossover point on their phoneme boundary functions. Mechanisms which might account for the temporal processing difficulties of language‐delayed children and their relation to the language disorder will be discussed. [Work supported by NINCDS.]Previous studies have demonstrated that language‐delayed children as a group are impaired in processing nonverbal and verbal auditory stimuli that change rapidly over time, but in processing similar stimuli that change more slowly [P. Tallal and M. Piercy, Neuropsychol. 13, 69–74, (1975)]. In the present study, 36 language‐delayed children and 36 controls were presented with tokens from a /sa/—/sta/ continuum. The syllables were synthesized to differ only in the duration of silence between the offset of frication and the onset of vowel formants which ranged from 0 ms in /sa/ to 100 ms in /sta/. A nonverbal target identification procedure was used in obtaining responses. The language‐delayed children were unimpaired on the two end points of the continuum. However, they were either inconsistent in their responses to the entire continuum or required a significantly longer silent period than the normals to identify a syllable as /sta/, as evidenced by a shift in the crossover point on their phoneme boundary f...