Sleep

Question 1

Circadian rhythm

Answer 1

Internal biological clock
Synch. With 24hr cycle of day/night

Question 2

Amount of time between sleep stages

Answer 2

90 mins

Question 3

Non REM stage: 1→ light sleep

Answer 3

Hallucinations
Hypnagogic sensations
Ppl won’t believe they slept if awakened

Question 4

Non REM stage: 2 → sleep spindles

Answer 4

Heart rate/ body temp ↓
20 mins
Sleep spindle: bursts of activityonly 1-2 most of night in this stage

Question 5

Non REM stage: 3→ delta waves

Answer 5

Slowest, longest waves
20 -50% of wave pattern
30 mins
Sleepwalking/sleep talking

Question 6

REM

Answer 6

Heart rate inc.
Breathing rapid/irregular
Closed exes dart every half minute
Motor cortex active, but brainstem I blocks messages

Question 7

Paradoxical sleep

Answer 7

Internally aroused with waking-like activity’s but asleep