کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
931315 1474442 2012 7 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Brain activity while reading words and pseudo-words: A comparison between dyslexic and fluent readers
موضوعات مرتبط
علوم زیستی و بیوفناوری علم عصب شناسی علوم اعصاب رفتاری
پیش نمایش صفحه اول مقاله
Brain activity while reading words and pseudo-words: A comparison between dyslexic and fluent readers
چکیده انگلیسی

In recent years many studies have focused on brain activity differences between fluent and dyslexic readers in order to understand the neural basis of dyslexia. The aim of the current study was to examine the processing of words and pseudo-words in the two hemispheres among dyslexic as compared to fluent readers, using behavioral, and electrophysiological source estimation measures. Two matched groups of university students, fluent and dyslexic readers, performed a lexical decision task in order to examine the processes of word recognition. Dyslexic readers showed overall less activity than fluent readers, mainly during late processing stages. In addition, the distinctive patterns of activity for words and pseudo-words displayed by fluent readers were not apparent in dyslexic readers. In particular, the increased activation of left-hemisphere language areas found in response to pseudo-words was absent in dyslexics. These findings are further evidence of orthographic and phonological impairments in dyslexia.


► We examine processing of words and pseudo words among dyslexic and regular readers.
► We use behavioral and electrophysiological and source estimation measures.
► Differences were found in hemispheric activity.
► Dyslexic readers show a similar pattern of activation for words and pseudo words.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: International Journal of Psychophysiology - Volume 84, Issue 3, June 2012, Pages 270–276
نویسندگان
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