Image via WikipediaAs you know, I have motor apraxia, motor system dysfunction at the cortical level of my brain. I haven't had an MRI so I don't know exactly what is not functioning but motor apraxia is localized in the left inferior parietal lobule, frontal lobes (especially the premotor cortex, supplementary motor area, and convexity), or corpus callosum (the interconnection between the left and right hemisphere.
When you decide to move your body, you recall previously stored 3 dimensional plans. These 3-dimensional, supramodal codes, also called representations or movement formulae, are stored in the inferior parietal lobule of the left hemisphere. It has been hypothesized that imitation of meaningless gestures and use of tool and objects depend on left parietal lobe integrity because of their demands on categorical apprehension of spatial relationships between multiple objects or between multiple parts of objects.
There are a number of different types of apraxia errors, these include errors of orientation of the hand around the object, errors of external spatial orientation, and movement errors.
I also have right-left confusion and can get very mixed up between my right and left hands. Some of these problems fall in the domain of the occupational therapist, physical therapist or vision therapist.
I got a Magic Mouse for my Mac at Christmas and it really helps me use the computer. I don't have to deal with trying to pull at something when I want to drag and drop. I don't have to fumble around looking for a scroll bar and trying to grab it. It really makes a big difference. The entire top of the Magic Mouse is a seamless Multi-Touch surface... kind of like the Dove soap bar.