Effects of Background Noise on Cortical Encoding of Speech in Autism Spectrum Disorders

被引：79
|
作者：
Russo, Nicole [1 ]
Zecker, Steven [1 ]
Trommer, Barbara [2 ]
Chen, Julia [3 ]
Kraus, Nina [1 ]
机构：
[1] Northwestern Univ, Roxelyn & Richard Pepper Dept Commun Sci, Evanston, IL 60208 USA
[2] Maimonides Hosp, Div Neurol, Dept Pediat, Brooklyn, NY 11219 USA
[3] Northwestern Univ, Dept Biol Sci, Evanston, IL 60208 USA
来源：
JOURNAL OF AUTISM AND DEVELOPMENTAL DISORDERS | 2009年 / 39卷 / 08期
关键词：
Autism; Cortical encoding; Speech; Background noise; Children; Evoked potentials; EVENT-RELATED POTENTIALS; AUDITORY-EVOKED POTENTIALS; PERVASIVE DEVELOPMENTAL DISORDERS; DIAGNOSTIC OBSERVATION SCHEDULE; HIGH-FUNCTIONING AUTISM; SOUNDS VERTICAL-BAR; LEARNING-PROBLEMS; BRAIN-STEM; ASPERGER-SYNDROME; LANGUAGE DISORDERS;
D O I：
10.1007/s10803-009-0737-0
中图分类号：
B844 [发展心理学（人类心理学）];
学科分类号：
040202 ;
摘要：
This study provides new evidence of deficient auditory cortical processing of speech in noise in autism spectrum disorders (ASD). Speech-evoked responses (similar to 100-300 ms) in quiet and background noise were evaluated in typically-developing (TD) children and children with ASD. ASD responses showed delayed timing (both conditions) and reduced amplitudes (quiet) compared to TD responses. As expected, TD responses in noise were delayed and reduced compared to quiet responses. However, minimal quiet-to-noise response differences were found in children with ASD, presumably because quiet responses were already severely degraded. Moreover, ASD quiet responses resembled TD noise responses, implying that children with ASD process speech in quiet only as well as TD children do in background noise.
引用
收藏
页码：1185 / 1196
页数：12
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