evolutionary theories of sleep

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  • Created by: siobhan
  • Created on: 20-03-15 15:18
Meddis
sleep protects from harm and predation by immobilizing animals during times of risk
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Webb
slee allows animals to conseve energy by reducing activity during the night, and dropping body temp.
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Siegel
sleep enables both energy conservation and predator avoidance
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Decoursey
damaged SCN of 30 chipmunks so their circadian rhythm was disrupted, returned them to the wild. more of these were killed by predators than a control group.
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Allison
found prey animals slept for significantly less time than predators, which goes against Meddis' theory.
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Zepelin
found smaller animal with higher metabolic rates slept more than larger animals, which supports webb's theory
6 of 6

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Card 2

Front

slee allows animals to conseve energy by reducing activity during the night, and dropping body temp.

Back

Webb

Card 3

Front

sleep enables both energy conservation and predator avoidance

Back

Preview of the back of card 3

Card 4

Front

damaged SCN of 30 chipmunks so their circadian rhythm was disrupted, returned them to the wild. more of these were killed by predators than a control group.

Back

Preview of the back of card 4

Card 5

Front

found prey animals slept for significantly less time than predators, which goes against Meddis' theory.

Back

Preview of the back of card 5
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