ultradian rhythms

Question 1

what are ultradian rhythms?

Answer 1

Frequency of more than one cycle in 24 hours, such as the stages of sleep

Question 2

outline the stages of sleep?

Answer 2

1+2- light sleep, easily woken, activity slows
alpha waves
3+4- slow wave sleep (sws), delta waves with lower freq
5- rapid eye movement- paralyzed body, dream sleep, theta waves

Question 3

ao3 improved understanding? ultradian rhythms

Answer 3

strength
age related changes in sleep, sws reduces with age
Cauter at al 2000, growth hormone normally produced in sws reduced with older people, practical value

Question 4

ao3 lab studies? ultradian rhythms

Answer 4

limitation
artificial situations with no meaning, not realistic
doesnt represent ordinary sleep patterns