Resting State EEG Hemispheric Power Asymmetry in Childrem with Dyslexia

E A Papagiannopoulou; Jim Lagopoulos

doi:10.3389/fped.2016.00011

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Resting State EEG Hemispheric Power Asymmetry in Childrem with Dyslexia

Journal article

Open access

Peer reviewed

Resting State EEG Hemispheric Power Asymmetry in Childrem with Dyslexia

E A Papagiannopoulou and Jim Lagopoulos

Frontiers in Pediatrics, Vol.4(11)

2016

DOI: https://doi.org/10.3389/fped.2016.00011

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Abstract

dyslexia

children

hemispheric lateralization

auditory processing

electroencephalography

EEG

Dyslexia is a neurodevelopmental disorder estimated to affect between 4 and 7% of the population. It is often referred to as a learning disability and is characterized by deficits in the linguistic system. To better understand the neural underpinnings of dyslexia, we examined the electroencephalography (EEG) power spectra between pre-adolescents with dyslexia and neurotypical control children during eyes closed state. We reported the differences in spontaneous oscillatory activity of each major EEG band (delta, theta, alpha, and beta) adopting a global as well as in a region-by-region and hemispheric approach to elucidate whether there are changes in asymmetry in children with dyslexia compared to controls. We also examined the relationship between EEG power spectra and clinical variables. The findings of our study confirm the presence of an atypical linguistic network, evident in children with dyslexia. This abnormal network hallmarked by a dominance of theta activity suggests that these abnormalities are present prior to these children learning to read, thus implicating delayed maturation and abnormal hypoarousal mechanisms.

Details

Title: Resting State EEG Hemispheric Power Asymmetry in Childrem with Dyslexia
Authors: E A Papagiannopoulou (Author) - University of Sydney
Jim Lagopoulos (Author) - University of Sydney
Publication details: Frontiers in Pediatrics, Vol.4(11)
Publisher: Frontiers Research Foundation
Date published: 2016
DOI: 10.3389/fped.2016.00011
ISSN: 2296-2360
Copyright note: Copyright © 2016 Papagiannopoulou and Lagopoulos. This is an open-access article distributed under the terms of the Creative Commons Attribution License (CC BY). The use, distribution or reproduction in other forums is permitted, provided the original author(s) or licensor are credited and that the original publication in this journal is cited, in accordance with accepted academic practice. No use, distribution or reproduction is permitted which does not comply with these terms.
Organisation Unit: University of the Sunshine Coast, Queensland; Thompson Institute
Language: English
Record Identifier: 99449502802621
Output Type: Journal article

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Collaboration types: Domestic collaboration
Web Of Science research areas: Pediatrics