Please use this identifier to cite or link to this item: http://hdl.handle.net/1893/11494
Appears in Collections:Psychology Journal Articles
Peer Review Status: Refereed
Title: Behavioral and ERP evidence for amodal sluggish attentional shifting in developmental dyslexia
Authors: Lallier, Marie
Tainturier, Marie-Joseph
Dering, Benjamin
Donnadieu, Sophie
Valdois, Sylviane
Thierry, Guillaume
Contact Email: b.r.dering@stir.ac.uk
Keywords: Developmental dyslexia
Automatic attentional shifting
Stream segregation
ERP
Amodal processing
Phonology
Issue Date: Dec-2010
Publisher: Elsevier
Citation: Lallier M, Tainturier M, Dering B, Donnadieu S, Valdois S & Thierry G (2010) Behavioral and ERP evidence for amodal sluggish attentional shifting in developmental dyslexia, Neuropsychologia, 48 (14), pp. 4125-4135.
Abstract: The goal of this study was to examine the claim that amodal deficits in attentional shifting may be the source of reading acquisition disorders in phonological developmental dyslexia (sluggish attentional shifting, SAS, theory, Hari & Renvall, 2001). We investigated automatic attentional shifting in the auditory and visual modalities in 13 dyslexic young adults with a phonological awareness deficit and 13 control participants, matched for cognitive abilities, using both behavioral and ERP measures. We tested automatic attentional shifting using a stream segregation task (perception of rapid succession of visual and auditory stimuli as one or two streams). Results of Experiment 1(behavioral) suggested that in order to process two successive stimuli separately dyslexic participants required a significantly longer inter-stimulus interval than controls regardless of sensory modality. In Experiment 2 (ERPs), the same participants were tested by means of an auditory and a visual oddball tasks involving variations in the tempo of the same alternating stimuli as Experiment 1. P3b amplitudes elicited by deviant tempos were differently modulated between groups, supporting predictions made on the basis of observations in Experiment 1. Overall, these results support the hypothesis that SAS in dyslexic participants might be responsible for their atypical perception of rapid sequential stimulus sequences in both the auditory and the visual modalities. Furthermore, these results bring new evidence supporting the link between amodal SAS and the phonological impairment in developmental dyslexia.
Type: Journal Article
URI: http://hdl.handle.net/1893/11494
DOI Link: http://dx.doi.org/10.1016/j.neuropsychologia.2010.09.027
Rights: The publisher does not allow this work to be made publicly available in this Repository. Please use the Request a Copy feature at the foot of the Repository record to request a copy directly from the author. You can only request a copy if you wish to use this work for your own research or private study.
Affiliation: Universite de Grenoble
Bangor University
Psychology
Universite de Grenoble
Universite de Grenoble
Bangor University

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