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10 Cards in this Set
- Front
- Back
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how can we measure behavioural changes in sleep |
electroencephalogram (EEG) - electrodes attached to scalp record electrical activity electromyogram - electrodes attached to chin monitor muscle activity electro-oculogram - monitors eye movements |
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adaptation theory of sleep |
sleeps maim role is to increase chance of survival sleep-wake pattern adapted to food requirements and methods of defence from attack |
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recuperation theory of sleep |
being awake disrupts homeostasis, sleeping allows the brain to rest and recover from the adverse effects of wakefulness. Slow wave sleep and REM promotes learning, REM promotes brain development |
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effect of sleep deprivation |
doesn't interfere with physical exercise cognitive abilities are affected |
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function of REM sleep |
highest proportion seen during brain development, immature born babies sleep more aids the consolidation of non-declarative LTM, SWS declarative |
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sleep deprivation examples |
kleitman, 1963 Randy Gardner Peter Tripp Carousel apparatus with rats |
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Kletiman |
1963. sleep deprived students, attacks of sleepiness around 3am, able to function as long as standing/moving, experience micro sleeps, sleepiness becomes progressively sever and plateaus at day 4 |
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Randy gardner |
longest period of wakefulness was 264 hours, lack of substantial sleep recovery. slept 14 hours in the first night, 8 after that. difficulty focusing astereognosia (difficulty recognising by touch) moodiness ataxia (cannot repeat simple tongue twisters) hallucinations |
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Peter Tripp |
awake 8 days and nights, day 4 experienced hallucinations/psychotic symptoms, day 8 lost his mind. slept for 22 hours. psychotic symptoms, lost his job and wife. |
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carousel apparatus |
for example nasehi at al. (2014) used carousel device, found impaired memory and anxiety related behavioirs in rats. died after 12 days and evidence of stress. animal model |
