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Outline and evaluate restoration explanations of the functions of sleep. (24 Marks)

A01

The restoration theory suggests that the function of sleep is to repair and restore the brain and
body.
Oswald (1980) suggested that different types of sleep are necessary for restoring different
biological functions. REM is needed for…

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S: Furthermore, this was ethically incorrect as the animals died.



P: There is evidence against the idea that lack of sleep has fatal consequences.
E: Rattenborg et al conduced a similar experiment but with pigeons, and the pigeons suffered
no ill effects.
C: As this was conducted on animals, it…

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