文章基本信息

标题：Comprensión auditiva de oraciones en niños con trastorno de la lectura: Estudio con Potenciales Relacionados con Eventos.
其他标题：Auditory Sentence Comprehension in Children with Reading Disabilities: An Event-Related Potentials Study.
本地全文：下载
作者：Rodríguez Camacho, Mario ; Bravo, B. ; Prieto Corona, Belen 等
期刊名称：Journal of Behavior, Health & Social Issues
印刷版ISSN：2007-0780
出版年度：2012
卷号：4
期号：2
页码：73-89
DOI：10.5460/jbhsi.v4.2.34109
语种：English
出版社：Facultad de Estudios Superiores Iztacala
摘要：In the present study, we propose to explore the Event-Related Potentials components elicited in reading disabled (RD) and normal readers (NR) children by phonological and semantic processes using an auditory sentence comprehension task, that manipulate both phonological and semantic expectancies. Reading deficiencies in both these processes have been demonstrated in RD children, thus similar problems might also be expected for oral language in these children. Twenty-two male children (9-12 years old) with normal IQ, were classified by Neuropsychological Battery for Reading Disabilities into two groups: Normal Readers (NR, n=11) and Reading Disabled (RD, n=11). ERPs were recorded from 19 derivations of the I.S. 10-20. Children were presented with spoken sentences that ended with a word that was either (a) semantically congruent, and phonologically expected, (b) semantically incongruent, but beginning with the same initial phonemes as the congruent completion, or (c) semantically incongruent, and phonologically unexpected. For each type of sentence, ERP were analyzed in two time windows: early time window (330-430 ms) related to phonological processing, as well as a later N400 window (515-615 ms) that would reflect the semantic processing. In both groups, the three types of sentences elicited a negative waveform with an onset at 200 ms that lasted until approximately 900 ms. This negative waveform had greater amplitude in response to semantically incongruent, compared to semantically congruent sentences. Results revealed a probably anomalous phonological processing in RD children, reflected by a greater ERP response to expected, than to unexpected, words in a given sentential context. However, both the N400 responses related to semantic processing, and the behavioral responses related to the correctness of sentences, were comparable between RD and NR children.
关键词：ERP in children; N400; Reading Disabilities; Spoken language.