So What is Going on in the Brain? 
The cerebral cortex is divided into a right and left hemisphere, which have specialist functions. They operate in an almost separate fashion. Many functions are 'shared', but generally each side appears to work almost independently offering its piece of information to complete the 'picture' and therefore forming a whole. e.g. the left hemisphere receives the information, in a jumbled, disjointed way; it is only when the right hemisphere works in harmony with the left that images and actions are interpreted in the correct order and the information is comprehended as a complete piece or object.
Individuals with Dyspraxia do not seem to have both hemispheres responding in this simultaneous, co-ordinated fashion. It is also the development of the two hemispheres that decides whether a person is right or left handed, again this basic development seems substantially reduced and therefore the child may use both hands without preference for some time, thus reducing the development of hand-writing skills still further.
The cortex also surrounds structures known as the 'thalamus', 'hypothalamus' and 'pituitary gland'. This area it known as the limbic system. This system is responsible for the 'instinctive' and automatic responses within the body: it is also closely linked with emotional behaviour. As the cortex matures is acts to 'dampen down' the effects of the limbic system's emotional output in response to stimuli. If this were not the case, the individual would be highly excitable, over emotional and be extremely sensitive to external sensory input.
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