Abstract

PERNET, Cyril R.; DUFOR, Olivier  and  DEMONET, Jean-Francois. Re-Defining Dyslexia: Accounting for variability. Escritos de Psicología [online]. 2011, vol.4, n.2, pp.17-24. ISSN 1989-3809.

The scientific effervescence that reigns around developmental dyslexia is explained by the difficult challenge that consists of ascribing this handicap to a single cause whilst multiple profiles of dyslexic patients can be observed. In this chapter, we start by presenting the main neuro-cognitive hypotheses that aim to explain dyslexia. We then review the multidimensional nature of dyslexia, and discuss the necessity of using a common diagnostic criteria to improve our understanding of its true nature. We then conclude by presenting promising work connecting cerebral endophenotypes and behavioral phenotypes highlighting the need for a multi-factorial rather than mono-theoretical account of developmental dyslexia.

Keywords : Developmental dyslexia; Multi-factorial deficit; Review.

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