Ultradian Rhythms Flashcards
1
Q
How long?
A
Less than 24 hours
2
Q
Sleep Stage explanation
A
Sleep pattern is 90 minutes per cycle with more than one cycle in 24 hours
stage characteristics determines by EEG activity
3
Q
Sleep stage 1+2
A
- Light sleep, easily woken
- waves lower as sleep deepens
- stage 1 = alpha wavers
- stage 2 = alpha waves with sleep spindles
4
Q
Sleep stages 3+4
A
- deep sleep
- slow waves (delta)
- difficult to wake up
5
Q
Sleep stage 5
A
- rapid eye movement (REM)
- body paralysed yet brain active
- theta waves
- dream occur
6
Q
AO3 +
A
Can understand age differences
- slow waves sleep (3+4) decrease with ages as produced by growth hormone
- practical value as can be improved by relaxation and medication to decrease age impairments
7
Q
AO3 -
A
Large individual differences in ppts duration of stages 3+4
- differences are biologically determins - TUCKER ET AL
