Psychology - Sleep

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What three biological rhythms are there?
1.Circadian 2.Infradian 3.Ultradian
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How long does it last and what is an example of a circadian rhythm?
24 hours & the sleep/wake cycle
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How long does it last and what is an example of an infradian rhythm?
24 hours to 1 year & the menstrual cycle/SAD
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How long does it last and what is an example of an ultradian rhythm?
More often than once a day & the stages of sleep
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What is an endogenous pacemaker?
Internal factors
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What is an exogenous zeitgeber?
External factors
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What are two examples of disruption of biological rhythms?
1.Shiftwork 2.Jet lag
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What are biological rhythms driven by?
Exogenous zeitgebers
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What did Oswald suggest are the two stages of sleep that are associated with particular benefits?
1.Slow-wave sleep (SWS) 2.Rapid eye movement (REM)
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What did Oswald suggest was the function of SWS?
To enable body repair
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What did Oswald suggest was the function of REM?
To enable brain recovery
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What are the five points in life where the amount and kind of sleep experienced changes?
1.Infancy 2.Childhood 3.Adolescence 4.Adulthood 5.Old Age
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What do evolutionary explanations see the purpose of sleep as?
It serves has an adaptive function related to survival and therefore occurs during natural selection
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What are the four possible evolutionary explanations of why sleep is needed?
1.Energy conservation 2.Dietry/foraging requirements 3.Predator avoidance 4.Waste of time
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What is insomnia?
The long term inability to sleep
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What is primary insomnia?
Insomnia is regarded as an illness in itself. It is not attribute to a medical, psychiatric or environmental cause
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What is secondary insomnia?
When insomnia is a direct result of another illness. It is caused by a psychiatric of medical disorder
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What is apnoea?
A medical condition where sleepers have persistent pauses in breathing
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What are personality factors?
Dispositional traits affecting normal sleep patterns?
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What is sleepwalking?
The performance of unconscious activities when asleep
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What is narcolepsy?
A sleep disorder characterised by falling asleep at unexpected times
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What is sleep paralysis?
A sleep disorder involving an inability to move at sleep onset or on wakening
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Other cards in this set

Card 2

Front

How long does it last and what is an example of a circadian rhythm?

Back

24 hours & the sleep/wake cycle

Card 3

Front

How long does it last and what is an example of an infradian rhythm?

Back

Preview of the front of card 3

Card 4

Front

How long does it last and what is an example of an ultradian rhythm?

Back

Preview of the front of card 4

Card 5

Front

What is an endogenous pacemaker?

Back

Preview of the front of card 5
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