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Camilla Flintermann wrote: > > SNIPPED > I too experience the jolt you mention when falling asleep at night, but > >I don't think it comes under the heading of dyskenesia, perhaps someone > >else on the > >list may be able to explain this. > >Nigel, 44/11 > > I'm guessing that you refer to "myoclonic jerks" which are common "on the > edge of sleep". Peter also has them at other times on occasion, but they > have nothing to do with PD--if that's what they are. > Tabers medical Encyclopedia defines these as " twitching or clonic spasm of > a muscle of group of muscles". A clonic spasm is defined as "spasm marked > by muscular rigidity and then relaxation". I've also gotten them for years > when about to fall asleep. I once asked my neuro about this "myoclonus" and he also said it's nothing to do with PD; but I never had it before diagnosis of PD. The only thing mildly unpleasant about myoclonus is the total lack of warning. It strikes like lightning, and feels like every single muscle has decided to twitch at the same time, just once, and it's past. So far at least it hasn't wakened me from sound sleep. Cheers, Joe -- J. R. Bruman (818) 789-3694 3527 Cody Road Sherman Oaks, CA 91403-5013