There is behaviour I'm looking for information about, below are two examples of it in people, although the 2nd example is from fiction.
Featured on the TV show QI. "Jumping Frenchmen of Maine" refers to various symptoms, one of thease is that they "obey any command given suddenly", there is also the suggestion that unexpectedness is factor too, it seems to be to do with the startle reflex although information on the startle reflex in related conditions (that arn't that related) don't seem to provide much information. Do any other disorders or similar have this symptom? Is there more inform…