PERCEPTION OF FORMANT TRANSITION CUES TO PLACE OF ARTICULATION IN CHILDREN WITH LANGUAGE IMPAIRMENTS
PERCEPTION OF FORMANT TRANSITION CUES TO PLACE OF ARTICULATION IN CHILDREN WITH LANGUAGE IMPAIRMENTS
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DOI：
10.1044/jshr.3606.1286
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发表时间：
1993-12-01
期刊：
影响因子：
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通讯作者：
SUSSMAN, JE
中科院分区：
文献类型：
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作者：
SUSSMAN, JE
将5 - 6岁语言障碍儿童的辨别力和语音识别能力与4岁语言发育正常儿童的辨别力和语音识别能力进行比较，并与5 - 6岁儿童和成人对[ba]至[da]合成刺激的先前研究结果进行比较。结果显示，所有儿童对第二和第三共振峰转换线索的敏感性相似，最小的敏感性最差。语音分类的语言障碍儿童是最不同的组与正常的语言能力，证明了标记为“BA”的标记的百分比的差异和更大的变化，在标签和语音类别边界的位置。结果支持Gathercole和Baddeley（1990）的假设，即语言障碍儿童的工作记忆中语音成分可能是紊乱的。结果也表明，与语言学习相关的左半球处理的具体困难，而不是与语音标记的共振峰转换的敏感性有关的问题。
Discrimination and phonetic identification abilities of 5- to 6-year-old children with language impairments were compared to those of 4-year-olds with normally developing language and to previous findings from 5- to 6-year-olds and adults for synthetic stimuli ranging from [ba] to [da]. Results showed similar discrimination sensitivity to the second- and third-formant transition cues of stimuli by all children, with poorest sensitivity by the youngest. Phonetic categorization by children with language impairments was most different from the groups with normal language abilities, evidenced by a difference in the percent of tokens labeled as ''BA'' and by greater variability in labeling and in placement of phonetic category boundaries. Results support hypotheses by Gathercole and Baddeley (1990) suggesting that the phonological component of working memory may be disordered in children with language impairments. Results are also suggestive of specific difficulties with left-hemisphere processing associated with language learning rather than with problems related to sensitivity to formant transitions of the speech tokens.