... of the three aforementioned perspectives. In addition to these there are environmental factors that can have a role in the accounts offered from these perspectives. Frith illustrates how differing perspectives relate to each other e.g. cognitive perspectives describe cognitive processes that might explain how the biological and behavioural accounts map onto each other; the complex interactions between biology and environment mean that the same biological 'problem' can result in different cognitive and behavioural consequences for different people. By outlining each perspectives explanation of dyslexia and suggested methods of intervention, we can slowly build a picture of what this condition is, and consider what (if any) is the best approach to its treatment or management. Behavioural explanations of dyslexia tend to be less debated than the other perspectives because there is less need for experimental validation. The most common observed behavioural symptoms of dyslexia are consequences of phonological difficulties (the struggle to ...

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