Dyslexia and Handedness: Developmental Phonological and Surface Dyslexias are Associated with Different Biases for Handedness

Developmental disorders of reading and spelling have long been associated with increased left- and mixed-handedness but the evidence has been controversial. The right shift (RS) theory of handedness and cerebral dominance, developed by Annett from 1972 onward, offers resolutions to several puzzles a...

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Bibliographic Details
Published in:Perceptual and motor skills 2011-04, Vol.112 (2), p.417-425
Main Author: Annett, Marian
Format: Article
Language:English
Subjects:
Bias
Child
Dyslexia
Dyslexia - diagnosis
Dyslexia - genetics
Dyslexia - psychology
Dyslexia - therapy
Functional Laterality - genetics
Genotype
Humans
Motor ability
Phonetics
Social Values
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Summary:Developmental disorders of reading and spelling have long been associated with increased left- and mixed-handedness but the evidence has been controversial. The right shift (RS) theory of handedness and cerebral dominance, developed by Annett from 1972 onward, offers resolutions to several puzzles about laterality in the so-called dyslexias. This review of findings in the light of the theory shows that “phonological” dyslexies are less likely to be right-handed, while “surface” or “dyseidetic” dyslexies are more likely to be right-handed than the general population.
ISSN:0031-5125
1558-688X
DOI:10.2466/10.19.24.PMS.112.2.417-425