Auditory word perception in sentence context in reading-disabled children

Reading difficulties seem to be related to a phonological deficit that has its origin in poor speech perception. As such, disabled readers may use contextual cues to compensate for their weak speech perception abilities. We compared good and poor readers, 7-13 years old, on auditory perception of wo...

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Bibliographic Details
Published inNeuroreport Vol. 19; no. 16; p. 1567
Main Authors Mody, Maria, Wehner, Daniel T, Ahlfors, Seppo P
Format Journal Article
LanguageEnglish
Published England 29.10.2008
Subjects
Adolescent
Auditory Perception - physiology
Child
Dyslexia - physiopathology
Female
Functional Laterality - physiology
Humans
Magnetic Resonance Imaging
Magnetoencephalography - methods
Male
Reaction Time - physiology
Reading
Semantics
Speech Perception - physiology
Temporal Lobe - physiology
Verbal Learning - physiology
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Summary:Reading difficulties seem to be related to a phonological deficit that has its origin in poor speech perception. As such, disabled readers may use contextual cues to compensate for their weak speech perception abilities. We compared good and poor readers, 7-13 years old, on auditory perception of words varying in phonological contrast, in congruent versus incongruent sentence contexts. Both groups did worse in the phonologically similar than in the phonologically dissimilar incongruent condition. Magnetoencephalography revealed differential activation between the groups as a function of phonological contrast in left superior temporal gyrus between 200 and 300 ms, suggesting that poor readers may have processed phonologically similar incongruent stimuli as congruent. The results are consistent with a phonological account of reading disability.
ISSN:1473-558X
DOI:10.1097/WNR.0b013e328311ca04