Circadian Rhythms
- Created by: Lucy Barker
- Created on: 06-04-13 15:34
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Circadian Rhythms
Circadian rhythms occur approximately every 24 hours e.g. body temp or sleep-wake cycle.
Sleep-wake cycle
Michel Siffre (1972) - the cave study
Siffre spent over 6 months living in a cave in Texas with no natural light or anything else to tell him what time of day it was. His biological clock was allowed to 'free-run' and he was wired up so his body functions could be recorded. Siffre's sleep-wake pattern settled down to 25 hours. We can conclude from…
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