SLEEP AND REM Tools A B REM SLEEP A STAGE IN WHICH MOST DREAMING OCCURS NREM SLEEP STAGE WITH SLOW, ROLLING, PENDULAR EYE MOVEMENTS EEG BRAIN WAVES EOG RECORDS EYE MOVEMENTS ENG RECORDS MUSCLE ACTIVITY ALPHA WAVES EEG PATTERN WHERE SUBJECT IS RELAXED AND EYES ARE CLOSED DELTA WAVES HIGH AMPLITUDE, SLOW WAVES DURATION LENGTH OF TIME SOMETHING LASTS AMPLITUDE EXTENT OF A VIBRATORY MOVEMENT PHASIC WORKS IN A RECURRING SERIES OF CHANGES TONIC WITH DESYNCHRONIZED AND STRIATED MUSCLE INHIBITION POSTSYNAPTIC INHIBITION WHEN CHEMICALS CANNOT FLOW FROM NERVE TO NERVE HYPERPOLARIZATION CAUSE TO VIBRATE IN A DEFINITE PATTERN VASODILATION CARDIOVASCULAR EXPANSION OSCILLATIONS TO SWING BACK AND FORTH