6. Which of the following is NOT seen in REM sleep? (A)rapid eye movement (B) paralysis of body muscles (C) periods of REM sleep get shorter as the night continues (D)arousal of brain activity

14. By pairing the ringing of the bell with the presentation of meat, Pavlov trained dogs to salivate to the sound of a bell even when no meat was presented.In this experiment, the presentation of the meat was the _______. (A)unconditioned response (B) conditioned response (C) unconditioned stimulus (D)conditioned stimulus

6. Which of the following is NOT seen in REM sleep?
(A)rapid eye movement
(B) paralysis of body muscles
(C) periods of REM sleep get shorter as the night continues
(D)arousal of brain activity

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