Resting state EEG hemispheric power asymmetry in children with dyslexia
ABSTRACTDyslexia is a neurodevelopmental disorder estimated to affect between 4-7% of the population. It is often referred to as a learning disability and is characterised by deficits in the linguistic system. To better understand the neural underpinnings of dyslexia, we examined the EEG power spect...
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| Format: | Article |
| Language: | English |
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Frontiers Media S.A.
2016-02-01
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| Series: | Frontiers in Pediatrics |
| Subjects: | |
| Online Access: | http://journal.frontiersin.org/Journal/10.3389/fped.2016.00011/full |
| _version_ | 1828487696466575360 |
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| author | Eleni Anna Papagiannopoulou Eleni Anna Papagiannopoulou Jim eLagopoulos Jim eLagopoulos |
| author_facet | Eleni Anna Papagiannopoulou Eleni Anna Papagiannopoulou Jim eLagopoulos Jim eLagopoulos |
| author_sort | Eleni Anna Papagiannopoulou |
| collection | DOAJ |
| description | ABSTRACTDyslexia is a neurodevelopmental disorder estimated to affect between 4-7% of the population. It is often referred to as a learning disability and is characterised by deficits in the linguistic system. To better understand the neural underpinnings of dyslexia, we examined the 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 these abnormalities are present prior to these children learning to read thus implicating delayed maturation and abnormal hypoarousal mechanisms. |
| first_indexed | 2024-12-11T09:56:30Z |
| format | Article |
| id | doaj.art-f1932d568d4743e39183404a8d2e5e8b |
| institution | Directory Open Access Journal |
| issn | 2296-2360 |
| language | English |
| last_indexed | 2024-12-11T09:56:30Z |
| publishDate | 2016-02-01 |
| publisher | Frontiers Media S.A. |
| record_format | Article |
| series | Frontiers in Pediatrics |
| spelling | doaj.art-f1932d568d4743e39183404a8d2e5e8b2022-12-22T01:12:16ZengFrontiers Media S.A.Frontiers in Pediatrics2296-23602016-02-01410.3389/fped.2016.00011156822Resting state EEG hemispheric power asymmetry in children with dyslexiaEleni Anna Papagiannopoulou0Eleni Anna Papagiannopoulou1Jim eLagopoulos2Jim eLagopoulos3The University of SydneyThe University of SydneyThe University of SydneySunshine Coast Mind and Neuroscience- Thompson InstituteABSTRACTDyslexia is a neurodevelopmental disorder estimated to affect between 4-7% of the population. It is often referred to as a learning disability and is characterised by deficits in the linguistic system. To better understand the neural underpinnings of dyslexia, we examined the 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 these abnormalities are present prior to these children learning to read thus implicating delayed maturation and abnormal hypoarousal mechanisms.http://journal.frontiersin.org/Journal/10.3389/fped.2016.00011/fullDyslexiaElectroencephalographyEEGauditory processingChildrenHemispheric Lateralisation |
| spellingShingle | Eleni Anna Papagiannopoulou Eleni Anna Papagiannopoulou Jim eLagopoulos Jim eLagopoulos Resting state EEG hemispheric power asymmetry in children with dyslexia Frontiers in Pediatrics Dyslexia Electroencephalography EEG auditory processing Children Hemispheric Lateralisation |
| title | Resting state EEG hemispheric power asymmetry in children with dyslexia |
| title_full | Resting state EEG hemispheric power asymmetry in children with dyslexia |
| title_fullStr | Resting state EEG hemispheric power asymmetry in children with dyslexia |
| title_full_unstemmed | Resting state EEG hemispheric power asymmetry in children with dyslexia |
| title_short | Resting state EEG hemispheric power asymmetry in children with dyslexia |
| title_sort | resting state eeg hemispheric power asymmetry in children with dyslexia |
| topic | Dyslexia Electroencephalography EEG auditory processing Children Hemispheric Lateralisation |
| url | http://journal.frontiersin.org/Journal/10.3389/fped.2016.00011/full |
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