sleep Flashcards
1
Q
what are the 2 basic patterns of brain activity during wakefullness
A
beta activity- alert, active thinking
many neural circuits are processing info
alpha activity- resting, not aroused or excited, no engaged thinking
occurs when eyes closed
2
Q
what is stage 1 of sleep
A
transition between sleep and wakefulness
10 min
theta- 3.5-7.5 hz
3
Q
stage 2 of sleep
A
if woken, people report they weren't asleep lasts 15 mins theta- 3.5-7.5 hz sleep spindles k complexes
4
Q
stage 3 and 4 sleep
A
theta- slower than 3.5 hz
only loud noises wake people up
5
Q
physiological changes in REM sleep
A
rapid eye movements loss of muscle tone body temp regulation mechanisms stop brain is active dreams
