My family recently decided to get a puppy. The other day, she was sleeping on the floor, obviously dreaming. (Feet twitching, quiet grunting noises, etc.) I had an idea. As she slept, I rubbed one of the spots on her belly that gets her leg scratching. She didn’t wake up, but her leg did make some vain attempts to scratch. Sleep paralysis prevented her leg from moving too much, but that system of the brain that associates a scratching feeling with the movement of the leg was obviously still on.
That makes me wonder if it’s possible for certain human reflexes to be activated while we’re in the grip of sleep paralysis. And, if so, to what degree are those reflexes choked up by the sleep paralysis? Any thoughts?