Auditory processing in the dyslexic brain

Melanie Reid; Blake W. Johnson; Genevieve McArthur; Anne Castles; Michael Hautus

doi:10.5096/ASCS200944

Auditory processing in the dyslexic brain

Melanie Reid, Blake W. Johnson, Genevieve McArthur, Anne Castles, Michael Hautus

Research output: Chapter in Book/Report/Conference proceeding › Conference proceeding contribution › peer-review

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Abstract

A prominent theory of dyslexia states that it is caused, at least in part, by neural deficits in processing auditory information. We examined children with dyslexia for their brain responses to sounds which were designed to challenge the temporal processing capabilities of the auditory system. The sounds were 500-ms broadband noises containing a binaurally embedded pitch. Event-related brain responses were measured with simultaneous 64-channel electroencephalography (EEG) and 160-channel magnetoencephalography (MEG). Nine children with dyslexia and 9 age-matched controls were tested (2 females in each group, Mean age 9.5). During the brain measurements children viewed a video and ignored the acoustic stimuli. Children tolerated the experimental environment well and we were able to collect data from all subjects for 800 trials over a 40-minute experimental session. This resulted in auditory responses with a high signal-to-noise ratio, important because children's auditory responses tend to be considerably noisier and more variable than those of adults. Results showed a delayed neural response to binaural pitches in children with dyslexia compared to control children.

Original language	English
Title of host publication	ASCS09
Subtitle of host publication	proceedings of the 9th conference of the Australasian Society for Cognitive Science
Editors	Wayne Christensen, Elizabeth Schier, John Sutton
Place of Publication	North Ryde, NSW
Publisher	Macquarie Centre for Cognitive Science
Pages	293-297
Number of pages	5
ISBN (Print)	9780646529189
DOIs	https://doi.org/10.5096/ASCS200944
Publication status	Published - 2010
Event	Conference of the Australasian Society for Cognitive Science (9th : 2009) - Sydney Duration: 30 Sept 2009 → 2 Oct 2009

Conference

Conference	Conference of the Australasian Society for Cognitive Science (9th : 2009)
City	Sydney
Period	30/09/09 → 2/10/09

Bibliographical note

Copyright 2009 by the Australasian Society for Cognitive Science. Publisher version archived with the permission of the Editor, ASCS09 : Proceedings of the 9th Conference of the Australasian Society for Cognitive Science. This copy is available for individual, non-commercial use. Permission to reprint/republish this version for other uses must be obtained from the publisher.

Keywords

auditory processing
dyslexia
neuroimaging
dichotic pitch

Access to Document

10.5096/ASCS200944

Publisher version (open access)Final published version, 191 KBLicence: Unspecified

Cite this

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title = "Auditory processing in the dyslexic brain",

abstract = "A prominent theory of dyslexia states that it is caused, at least in part, by neural deficits in processing auditory information. We examined children with dyslexia for their brain responses to sounds which were designed to challenge the temporal processing capabilities of the auditory system. The sounds were 500-ms broadband noises containing a binaurally embedded pitch. Event-related brain responses were measured with simultaneous 64-channel electroencephalography (EEG) and 160-channel magnetoencephalography (MEG). Nine children with dyslexia and 9 age-matched controls were tested (2 females in each group, Mean age 9.5). During the brain measurements children viewed a video and ignored the acoustic stimuli. Children tolerated the experimental environment well and we were able to collect data from all subjects for 800 trials over a 40-minute experimental session. This resulted in auditory responses with a high signal-to-noise ratio, important because children's auditory responses tend to be considerably noisier and more variable than those of adults. Results showed a delayed neural response to binaural pitches in children with dyslexia compared to control children.",

keywords = "auditory processing, dyslexia, neuroimaging, dichotic pitch",

author = "Melanie Reid and Johnson, {Blake W.} and Genevieve McArthur and Anne Castles and Michael Hautus",

note = "Copyright 2009 by the Australasian Society for Cognitive Science. Publisher version archived with the permission of the Editor, ASCS09 : Proceedings of the 9th Conference of the Australasian Society for Cognitive Science. This copy is available for individual, non-commercial use. Permission to reprint/republish this version for other uses must be obtained from the publisher.; Conference of the Australasian Society for Cognitive Science (9th : 2009) ; Conference date: 30-09-2009 Through 02-10-2009",

year = "2010",

doi = "10.5096/ASCS200944",

language = "English",

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pages = "293--297",

editor = "Wayne Christensen and Elizabeth Schier and John Sutton",

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Reid, M, Johnson, BW , McArthur, G , Castles, A & Hautus, M 2010, Auditory processing in the dyslexic brain. in W Christensen, E Schier & J Sutton (eds), ASCS09: proceedings of the 9th conference of the Australasian Society for Cognitive Science. Macquarie Centre for Cognitive Science, North Ryde, NSW, pp. 293-297, Conference of the Australasian Society for Cognitive Science (9th : 2009), Sydney, 30/09/09. https://doi.org/10.5096/ASCS200944

Auditory processing in the dyslexic brain. / Reid, Melanie; Johnson, Blake W.; McArthur, Genevieve et al.
ASCS09: proceedings of the 9th conference of the Australasian Society for Cognitive Science. ed. / Wayne Christensen; Elizabeth Schier; John Sutton. North Ryde, NSW: Macquarie Centre for Cognitive Science, 2010. p. 293-297.

Research output: Chapter in Book/Report/Conference proceeding › Conference proceeding contribution › peer-review

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N1 - Copyright 2009 by the Australasian Society for Cognitive Science. Publisher version archived with the permission of the Editor, ASCS09 : Proceedings of the 9th Conference of the Australasian Society for Cognitive Science. This copy is available for individual, non-commercial use. Permission to reprint/republish this version for other uses must be obtained from the publisher.

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N2 - A prominent theory of dyslexia states that it is caused, at least in part, by neural deficits in processing auditory information. We examined children with dyslexia for their brain responses to sounds which were designed to challenge the temporal processing capabilities of the auditory system. The sounds were 500-ms broadband noises containing a binaurally embedded pitch. Event-related brain responses were measured with simultaneous 64-channel electroencephalography (EEG) and 160-channel magnetoencephalography (MEG). Nine children with dyslexia and 9 age-matched controls were tested (2 females in each group, Mean age 9.5). During the brain measurements children viewed a video and ignored the acoustic stimuli. Children tolerated the experimental environment well and we were able to collect data from all subjects for 800 trials over a 40-minute experimental session. This resulted in auditory responses with a high signal-to-noise ratio, important because children's auditory responses tend to be considerably noisier and more variable than those of adults. Results showed a delayed neural response to binaural pitches in children with dyslexia compared to control children.

AB - A prominent theory of dyslexia states that it is caused, at least in part, by neural deficits in processing auditory information. We examined children with dyslexia for their brain responses to sounds which were designed to challenge the temporal processing capabilities of the auditory system. The sounds were 500-ms broadband noises containing a binaurally embedded pitch. Event-related brain responses were measured with simultaneous 64-channel electroencephalography (EEG) and 160-channel magnetoencephalography (MEG). Nine children with dyslexia and 9 age-matched controls were tested (2 females in each group, Mean age 9.5). During the brain measurements children viewed a video and ignored the acoustic stimuli. Children tolerated the experimental environment well and we were able to collect data from all subjects for 800 trials over a 40-minute experimental session. This resulted in auditory responses with a high signal-to-noise ratio, important because children's auditory responses tend to be considerably noisier and more variable than those of adults. Results showed a delayed neural response to binaural pitches in children with dyslexia compared to control children.

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Y2 - 30 September 2009 through 2 October 2009

ER -

Auditory processing in the dyslexic brain

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Keywords

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