| Anonymous |
Fri 2007-08-17 15:58 |
The overarching theme is that cognitive psychology, like clinical pyschiatry, rarely presents neatly-defined single-symptom disorders and conditions.
Instead of the convenient categories and labels so beloved of the press and the education authorities, you get broadly-defined syndromes named after one symptom that are actually complex sets of symptoms, some of which will be present to a lesser or greater degree; and some of which will be absent - including the 'headline' symptom.
This is the point with dyslexia: if clinical practice is to be based on rational diagnostic methodology then we have to accept that children and adults who read well (sometimes exceptionally so) but still present an overlapping set of visual, cognitive and spatial deficits that is heavily correlated with 'dyslexic dyslexics' are people with the same condition.
Or a very, very closely related cognitive abnormality that causes dyslexia in others. And your description of left-eye/right eye differences in image-processing - and outright cognitive dissonance between the two inputs - really rings a bell with anyone who's read about remedial reading tutors trying out coloured spectacles and blanking lenses in the belief that it's a visual disorder. |
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