Contributions of magnetic source imaging to the understanding of dyslexia

Semin Pediatr Neurol. 2002 Sep;9(3):229-38. doi: 10.1053/spen.2002.35506.

Abstract

The problem in dyslexia is difficulty learning how the printed word maps onto spoken language. Magnetic Source Imaging protocols were used in three studies. The first study with dyslexic children showed greater activity in the right temporoparietal region. The second study showed the aberrant neural circuit was present in initial stages of reading acquisition. The third study demonstrated that the aberrant profile could be normalized following intensive instruction. These findings suggest that dyslexia represents a functional deficit in the neural circuit that mediates the conversion of print to sound, which is amenable to change given adequate instruction.

Publication types

  • Comparative Study
  • Research Support, U.S. Gov't, Non-P.H.S.
  • Research Support, U.S. Gov't, P.H.S.
  • Review

MeSH terms

  • Adolescent
  • Child
  • Dyslexia / diagnosis*
  • Functional Laterality / physiology
  • Humans
  • Language
  • Language Tests
  • Magnetic Resonance Imaging / methods*
  • Magnetoencephalography
  • Phonetics
  • Reading
  • Remedial Teaching
  • Risk
  • Speech / physiology
  • Speech Perception / physiology
  • Time Factors
  • Verbal Learning / physiology