title: Lateralized auditory brain function in children with normal reading ability and in children with dyslexia.
abstract: We examined central auditory processing in typically- and atypically-developing readers. Concurrent EEG and MEG brain measurements were obtained from a group of 16 children with dyslexia aged 8-12 years, and a group of 16 age-matched children with normal reading ability. Auditory responses were elicited using 500ms duration broadband noise. These responses were strongly lateralized in control children. Children with dyslexia showed significantly less lateralisation of auditory cortical functioning, and a different pattern of development of auditory lateralization with age. These results provide further evidence that the core neurophysiological deficit of dyslexia is a problem in the balance of auditory function between the two hemispheres.
authors: ARC Centre of Excellence in Cognition and its Disorders, Macquarie University, NSW 2109, Australia. blake.johnson@mq.edu.au
authors: Blake W
authors: BW
authors: Johnson
authors: Genevieve
authors: G
authors: McArthur
authors: Michael
authors: M
authors: Hautus
authors: Melanie
authors: M
authors: Reid
authors: Jon
authors: J
authors: Brock
authors: Anne
authors: A
authors: Castles
authors: Stephen
authors: S
authors: Crain
mesh_terms: D000375:Aging / Q000523:psychology; D001303:Auditory Cortex / Q000502:physiology*; D001307:Auditory Perception / Q000502:physiology*; D002648:Child; D003071:Cognition / Q000502:physiology; D004007:Dichotic Listening Tests; D004410:Dyslexia / Q000503:physiopathology*; D004569:Electroencephalography; D005072:Evoked Potentials, Auditory / Q000502:physiology; D005260:Female; D007839:Functional Laterality / Q000502:physiology; D006309:Hearing / Q000502:physiology; D006801:Humans; D007361:Intelligence Tests; D015225:Magnetoencephalography; D008297:Male; D010775:Photic Stimulation; D011932:Reading