Exclusion of Linkage to 1p, 6p and Chromosome 15 in a Large Norwegian Family with Dyslexia

  • Toril Fagerheim
  • Finn Egil Tønnessen
  • Peter Raeymaekers
  • Herbert Lubs
Part of the Neuropsychology and Cognition book series (NPCO, volume 16)


Dyslexia is most simply defined as persistent difficulty in reading and spelling, in the absence of any neurologic or other cause, in an individual with normal intelligence and adequate schooling (Critchley and Critchley, 1978). Difficulties in spelling and decoding may persist through adult life. Currently there is no single test which permits a clear diagnosis of dyslexia. More specific definitions, based on varying test batteries, are made in most reported linkage studies.


Reading Disability Developmental Dyslexia Suggestive Linkage Reading Research Specific Reading Disability 
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Copyright information

© Springer Science+Business Media Dordrecht 1999

Authors and Affiliations

  • Toril Fagerheim
    • 1
  • Finn Egil Tønnessen
    • 2
  • Peter Raeymaekers
    • 3
  • Herbert Lubs
    • 4
  1. 1.Department of Medical GeneticsRegional Hospital of TromsøTromsøNorway
  2. 2.Center For Reading ResearchStavangerNorway
  3. 3.Neurogenetics LaboratoryUniversity of AntwerpAntwerpBelgium
  4. 4.Dept. of PediatricsDivision of GeneticsMiamiUSA

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