Please use this identifier to cite or link to this item: http://hdl.handle.net/1959.14/126190
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- Title
- Auditory processing in the dyslexic brain
- Related
- Conference of the Australasian Society for Cognitive Science (9th : 2009) (30 September - 2 October 2009 : Sydney)
- Related
- Christensen, Wayne; Schier, Elizabeth and Sutton, John. ASCS09 : proceedings of the 9th conference of the Australasian Society for Cognitive Science, p.293-297
- DOI
- 10.5096/ASCS200944
- Publisher
- North Ryde, NSW : Macquarie Centre for Cognitive Science
- Date
- 2010
- FoR/RFCD Code(s)
-
170100 Psychology
170200 Cognitive Sciences
- Author/Creator
- Reid, Melanie
- Author/Creator
- Johnson, Blake W
- Author/Creator
- McArthur, Genevieve
- Author/Creator
- Castles, Anne
- Author/Creator
- Hautus, Michael
- Description
- 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.
- Description
- 5 page(s)
- Subject Keyword
- 170100 Psychology
- Subject Keyword
- 170200 Cognitive Sciences
- Subject Keyword
- auditory processing
- Subject Keyword
- dyslexia
- Subject Keyword
- neuroimaging
- Subject Keyword
- dichotic pitch
- Resource Type
- ASCS09 : Proceedings Of The 9th Conference Of The Australasian Society For Cognitive Science
- Resource Type
- conference paper
- Organisation
- Macquarie University. Macquarie Centre for Cognitive Science
- Identifier
- http://hdl.handle.net/1959.14/126190
- Identifier
- ISBN:9780646529189
- Identifier
- mq-rm-2009009440
- Language
- eng
- Rights
- 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.
- Full Text
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