I can just rest my hand on the table and relax and then it becomes impossible to move it. not in a medical, there's something wrong with me, sort of way. but there comes a point where it becomes hard to consciously move my hand. and the more I scream at my hand to move (in my head of course), the more frozen it becomes.
but if I stop thinking about it, my hand will naturally move on its own when I need to type something.
I'll call it Conscious Paralysis. lol.
I guess I can only compare it to something like breathing. you can't stop breathing until you actually think about breathing. then the only way to breathe is to make an effort to breathe.