Chapter Four Flashcards
What is REM rebound effect?
increase the amount of REM sleep after being deprived of REM sleep.
What are nightmares?
Distressing or frightening dreams.
When are nightmares most likely to occur?
REM sleep, more towards the morning when it is time to wake up.
What group suffers from a higher percentage of nightmares?
People who have PTSD
What are sleep terrors (night terrors)?
Horrific images during during stage N3 (deep sleep).
What is narcolepsy?
Abrupt shift from an active, often emotional waking state into REM sleep. Often when laughing/being emotional.
What is cataplexy?
Collapse and immobile. Can be full body, but others just the face.
20% are type one narcolepsy, which experience cataplexy.
What are the 3 stages of Non-Rem sleep?
Stage N1, Stage N2, Stage N3.
What stage of sleep is considered light sleep?
Stage N1
What is stage N2 and what is it characterized by?
The transitional phase, a deeper sleep. Characterized by sleep spindles.
How long do sleep spindles last, roughly?
1-2 seconds.
What is stage N3-4 called?
Deep sleep.
What does REM stand for?
Rapid Eye Movement.
What are depressants and what effect do they have on the body?
Depressants reduce CNS activity by increasing an inhibitory neurotransmitter. Causes Relaxation, Drowsiness and Depression.
What is the most used CNS depressant drug?
Alcohol.
