Annals of Dyslexia

, Volume 53, Issue 1, pp 1–14

A definition of dyslexia


    • National Institute of Child Health and Human DevelopmentNational Institutes of Health
  • Sally E. Shaywitz
    • Yale University School of Medicine
  • Bennett A. Shaywitz
    • Yale University School of Medicine
Part I Defining Dyslexia, Comorbidity, Teachers’ Knowledge Of Language And Reading

DOI: 10.1007/s11881-003-0001-9

Cite this article as:
Lyon, G.R., Shaywitz, S.E. & Shaywitz, B.A. Ann. of Dyslexia (2003) 53: 1. doi:10.1007/s11881-003-0001-9


This paper elaborates on the components of a working definition of developmental dyslexia. It follows the general format of a paper by Lyon published in Annals of Dyslexia in 1995, which elaborated on a working definition proposed in 1994 (Lyon, 1995). The current definition agreed on by the work group updates and expands on the working definition from 1994.

Copyright information

© The International Dyslexia Association 2003