Unformatted text preview: differentiate between REM and Stage 1 or wake? We rely on the other measures - during REM, muscle activity drops to almost nothing. In fact, did you know that you are virtually paralyzed during REM? It's true. There are many theories about why this is so, but regardless of why we are, the fact is that we are. In addition, eye movements become more frequent and, instead of occurring a slow rolling fashion like in other stages, they are more sharp and occur in a fast, back and forth motion. REM cycle length seems to be dependent on brain size: rats = approx every 12 minutes. Also humans have approx twice the amount of REM as other species. a) dreaming- mostly occurs in REM, approximately 80%, although, as mentioned, we do dream in SWS. b) age- amount of REM decreases with age....
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- Fall '09
- Psychology, REM, Electroencephalography, slow-wave sleep, Non-rapid eye movement sleep