Linguistic and Non-Linguistic Semantic Processing in Individuals with Autism Spectrum Disorders: An ERP Study

被引：42

作者：

Coderre, Emily L. ^{[1
]}

Chernenok, Mariya ^{[1
,2
]}

Gordon, Barry ^{[1
,3
]}

Ledoux, Kerry ^{[1
]}

机构：

[1] Johns Hopkins Univ, Sch Med, Dept Neurol, Div Cognit Neurol Neuropsychol, Baltimore, MD 21205 USA

[2] Univ Calif Davis, Ctr Mind & Brain, Davis, CA 95616 USA

[3] Johns Hopkins Univ, Dept Cognit Sci, Baltimore, MD 21218 USA

来源：

JOURNAL OF AUTISM AND DEVELOPMENTAL DISORDERS | 2017年 / 47卷 / 03期

关键词：

Autism spectrum disorders; Semantic processing; ERP; Language; Pictures; EVENT-RELATED POTENTIALS; HIGH-FUNCTIONING AUTISM; SENTENCE COMPREHENSION; BRAIN POTENTIALS; PICTURES; LANGUAGE; CONNECTIVITY; N400; CHILDREN; WORDS;

D O I：

10.1007/s10803-016-2985-0

中图分类号：

B844 [发展心理学（人类心理学）];

学科分类号：

040202 ;

摘要：

Individuals with autism spectrum disorders (ASD) experience difficulties with language, particularly higher-level functions like semantic integration. Yet some studies indicate that semantic processing of non-linguistic stimuli is not impaired, suggesting a language-specific deficit in semantic processing. Using a semantic priming task, we compared event-related potentials (ERPs) in response to lexico-semantic processing (written words) and visuosemantic processing (pictures) in adults with ASD and adults with typical development (TD). The ASD group showed successful lexico-semantic and visuo-semantic processing, indicated by similar N400 effects between groups for word and picture stimuli. However, differences in N400 latency and topography in word conditions suggested different lexico-semantic processing mechanisms: an expectancy-based strategy for the TD group but a controlled post-lexical integration strategy for the ASD group.

引用

页码：795 / 812

页数：18

共 59 条

[1] Decreased Interhemispheric Functional Connectivity in Autism [J].