Theoretical Explanations of Developmental Dyslexia
Theoretical Explanations of Developmental Dyslexia
This chapter provides a brief overview of the major theories of the underlying causes of developmental dyslexia. First, it presents three cognitive level explanations: the phonological deficit hypothesis, the double-deficit hypothesis, and the automatization deficit hypothesis. It then discusses three brain-level explanatory frameworks, which includes the cerebral cortex hypotheses, the magnocellular deficit hypotheses, and the cerebellar deficit hypothesis. Finally, the chapter presents evidence of genetic transmission of dyslexia.
Keywords: developmental dyslexia, dyslexia, phonological deficit, double-deficit, automatization deficit, cerebral cortex hypotheses, magnocellular deficit, cerebellar deficit
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