Cross-modal integration in the brain is related to phonological awareness only in typical readers, not in those with reading difficulty

McNorgan, Chris and Randazzo-wagner, Melissa and Booth, James R. (2013) Cross-modal integration in the brain is related to phonological awareness only in typical readers, not in those with reading difficulty. Frontiers in Human Neuroscience, 7. ISSN 1662-5161

[img]
Preview
PDF (fnhum-07-00388)
fnhum_07_00388.pdf - Published Version
Available under License Creative Commons Attribution.

Download (1MB)

Abstract

Fluent reading requires successfully mapping between visual orthographic and auditory phonological representations and is thus an intrinsically cross-modal process, though reading difficulty has often been characterized as a phonological deficit. However, recent evidence suggests that orthographic information influences phonological processing in typical developing (TD) readers, but that this effect may be blunted in those with reading difficulty (RD), suggesting that the core deficit underlying reading difficulties may be a failure to integrate orthographic and phonological information. Twenty-six (13 TD and 13 RD) children between 8 and 13 years of age participated in a functional magnetic resonance imaging (fMRI) experiment designed to assess the role of phonemic awareness in cross-modal processing. Participants completed a rhyme judgment task for word pairs presented unimodally (auditory only) and cross-modally (auditory followed by visual). For typically developing children, correlations between elision and neural activation were found for the cross-modal but not unimodal task, whereas in children with RD, no correlation was found. The results suggest that elision taps both phonemic awareness and cross-modal integration in typically developing readers, and that these processes are decoupled in children with reading difficulty.

Item Type:
Journal Article
Journal or Publication Title:
Frontiers in Human Neuroscience
Additional Information:
Copyright © 2013 McNorgan, Randazzo-Wagner and Booth. This is an open-access article distributed under the terms of the Creative Commons Attribution License, which permits use, distribution and reproduction in other forums, provided the original authors and source are credited and subject to any copyright notices concerning any third-party graphics etc.
Subjects:
ID Code:
66663
Deposited By:
Deposited On:
23 Sep 2013 08:20
Refereed?:
Yes
Published?:
Published
Last Modified:
25 Oct 2020 02:30