The Edie Neurolearning Blog posted information on some research on the brain basis of dysgraphia. It appears to be very interesting although there is not a reference. It confirms what many pediatric therapists observe - many children require extensive visual monitoring of letter formation. Functional MRI's compared "good writers" with "bad writers". The testing revealed that "bad writers" had much more active visual areas of the cortex than the primary motor-sensory areas around the central gyrus. In addition, cerebellar activation was stronger in midline structures ie trunk more than the fingers.
Reference: Edie Neurolearning Blog. Retrieved on 10/10/12 from http://eideneurolearningblog.blogspot.com/2012/09/fmri-of-dysgraphia-lack-of-automaticity.html
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