Auditory processing and dyslexia: evidence for a specific speech processing deficit

Neuroreport. 1998 Jan 26;9(2):337-40. doi: 10.1097/00001756-199801260-00029.


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.

Publication types

  • Clinical Trial
  • Research Support, Non-U.S. Gov't

MeSH terms

  • Acoustic Stimulation
  • Brain Mapping
  • Child
  • Dyslexia / physiopathology*
  • Dyslexia / psychology
  • Electroencephalography
  • Humans
  • Reading
  • Speech Perception / physiology*