Phonological encoding in speech-sound disorder: evidence from a cross-modal priming experiment.
Phonological encoding in speech-sound disorder: evidence from a cross-modal priming experiment.
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语音障碍中的语音编码：来自跨模态启动实验的证据。
DOI：
10.1111/1460-6984.12271
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发表时间：
2017
影响因子：
2.4
通讯作者：
Krause,MiriamOP
中科院分区：
文献类型：
--
作者：
Munson,Benjamin;Krause,MiriamOP
研究背景语言产生的心理语言学模型为确定导致儿童言语-声音障碍（speech-sound disorder，SSD）的语言障碍的发生提供了一个框架。目的探讨SSD儿童与其年龄匹配的具有典型言语和语言发展（speech-language development，TD）的同龄人在对记忆中的词汇进行语音编码的能力方面是否存在差异。（18名TD患者，18名SSD患者）在听干扰词（IW）或通过耳机呈现的非语言听觉刺激时观看图片，这些干扰词或非语言听觉刺激在图片呈现前150 ms、同时或之后150 ms呈现。IW和图片名称的语音相似性各不相同。图片命名的潜伏期，准确性和持续时间talled.Outcomes & ResultsAll儿童命名图片更快地在存在的IW相同的图片的名称比在其他条件。在+150 ms的刺激开始时，图片命名更快时，IW共享音素与图片的名称比当他们是语音无关的图片的名称。SSD儿童和TD儿童的这种效应的大小相似。在跨通道启动任务的抑制和促进跨儿童的幅度的变化更强烈的影响的表达和接受的词汇的大小比语音生产accuracy.Conclusions & ImplicationsResults表明，SSD是不相关的语音编码能力降低，至少因为它是反映了跨通道命名任务。
BackgroundPsycholinguistic models of language production provide a framework for determining the locus of language breakdown that leads to speech‐sound disorder (SSD) in children.AimsTo examine whether children with SSD differ from their age‐matched peers with typical speech and language development (TD) in the ability phonologically to encode lexical items that have been accessed from memory.Methods & ProceduresThirty‐six children (18 with TD, 18 with SSD) viewed pictures while listening to interfering words (IW) or a non‐linguistic auditory stimulus presented over headphones either 150 ms before, concurrent with or 150 ms after picture presentation. The phonological similarity of the IW and the pictures’ names varied. Picture‐naming latency, accuracy and duration were tallied.Outcomes & ResultsAll children named pictures more quickly in the presence of an IW identical to the picture's name than in the other conditions. At the +150 ms stimulus onset asynchrony, pictures were named more quickly when the IW shared phonemes with the picture's name than when they were phonologically unrelated to the picture's name. The size of this effect was similar for children with SSD and children with TD. Variation in the magnitude of inhibition and facilitation on cross‐modal priming tasks across children was more strongly affected by the size of the expressive and receptive lexicons than by speech‐production accuracy.Conclusions & ImplicationsResults suggest that SSD is not associated with reduced phonological encoding ability, at least as it is reflected by cross‐modal naming tasks.