[QUAD-L] Question Help ASAP

[ZIPPPEDLIPS]

Can someone explain to me what happens when my son goes into TONE or Extension. It's something he can't help says his Dr since he is mute and a quad since his Brainstem stroke. Dr says he has 3 choices, laugh, cry or go into extension when he gets frustrated.She says that too many electrical impulses go to his brain at the same time and it causes it. However some of his caregivers says he is spoiled and throwing a temper tantrum. There was a site where I could get info about this sort of thing but I forgot the name of it.  Help please.
He is 41 and 4 yrs post stroke. Is  there a medicine for this?