Every time a video game player moves, the game instantly provides sounds, animated actions, and a higher or lower score. This situation illustrates the use of

You are telling a joke to your friend who is laughing uproariously and then suddenly collapses to the floor asleep. You are not surprised to later learn that he has a sleep disorder known as ___________

a) enuresis b) narcolepsy c) sleep terror d) daytime insomnia

REM behavior disorder results from _________________

a) too much sleep b) not enough sleep c) failure of the brain mechanisms to block brain signals to the muscles d) deterioration of the medial hypothalamus