Auditory processing and dyslexia: evidence for a specific speech processing deficit.
In order to investigate the relationship between dyslexia and central auditory processing, 19 children with spelling disability and 15 controls at grades 5 and 6 were examined using a passive oddball paradigm. Mismatch negativity (MMN) was determined for tone and speech stimuli. While there were no group differences for the tone stimuli, we found a significantly attenuated MMN in the dyslexic group for the speech stimuli. This finding leads to the conclusion that dyslexics have a specific speech processing deficit at the sensory level which could be used to identify children at risk at an early age.
Schulte-Körne
G
G
Department of Child and Adolescent Psychiatry and Psychotherapy, Philipps-University Marburg, Germany.
Deimel
W
W
Bartling
J
J
Remschmidt
H
H
D000161:Acoustic Stimulation; D001931:Brain Mapping; D002648:Child; D004410:Dyslexia / Q000503:physiopathology* / Q000523:psychology; D004569:Electroencephalography; D006801:Humans; D011932:Reading; D013067:Speech Perception / Q000502:physiology*