Biorhythms

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  • Created by: phaniball
  • Created on: 05-05-16 11:50
Cycles that occurs once every 24 hours
Circadian
1 of 19
Cycles that occurs more than once every day
Ultradian
2 of 19
Cycles that occur less than once every day
Infradian
3 of 19
Factors inside our body that regulate our biorhythms
Endogenous pacemakers
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What hormone induces sleep?
melatonin
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Factors outside our body that may trigger a biorhythm
Exogenous zeitgebers
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Who lesioned the SCN in hamsters and found that their sleep-wake cycle was disrupted?
Menaker et al
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What is the SCN?
suprachiasmatic nucleus
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Who spent 6 months in a cave without clocks or natural light?
Michael Siffre
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What external influence is suggested to impact our biorhythms?
Light
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Who found that $77 billion was spent due to major accidents or work related illnesses relating to shift work?
Moore
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Who found that 'changing shifts regularly is more disruptive than changes over a long period of time?'
Monk and Folkard
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Who found that shift workers have, on average, 2 hours shortened sleep and containing less REM sleep?
Tilney and Wilkinson
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Who found that people who worked shifts for more than 15 years were 3 times more likely to develop heart disease?
Knutsson et al
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What is SWS?
short-wave sleep
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Who said that SWS is for restoring the body & REM sleep is for resting brain functions?
Oswald
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What has research shown about the levels of growth hormones at night?
higher
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Who suggested that a lack of SWS leads to a reduced function of the immune system?
Krueger et al
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Who suggested that during REM sleep we remove unwanted memories?
Crick and Mitchison
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Other cards in this set

Card 2

Front

Cycles that occurs more than once every day

Back

Ultradian

Card 3

Front

Cycles that occur less than once every day

Back

Preview of the front of card 3

Card 4

Front

Factors inside our body that regulate our biorhythms

Back

Preview of the front of card 4

Card 5

Front

What hormone induces sleep?

Back

Preview of the front of card 5
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