retoration theory
- Created by: Hannah Jeffery
- Created on: 21-02-15 15:54
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- Functions of sleep: restoration explanation
- SWS
- Growth production
- allows protein synthesis
- vital for restoration of body tissues
- natural recovery process
- allows protein synthesis
- Cauter et al
- Amount of growth hormone produced is correlational to SWS
- lack of SWS results in a reduced immune system
- Krueger et al
- immune system consists of various protein molecules (antibodies) which are generated in cell growth and protein synthesis
- Growth production
- REM sleep
- brain growth
- increase of REM sleep during brain development
- why premature babies have 90% REM sleep
- increase of REM sleep during brain development
- Memory
- crick and Mitchison
- During REM sleep unwanted memories are discarded
- leaving only important memories accessible
- During REM sleep unwanted memories are discarded
- Stickgold
- important for the consolidation of procedural memory
- eg riding a bike
- important for the consolidation of procedural memory
- crick and Mitchison
- brain growth
- Effects for sleep deprivation
- based on individual case studies
- Peter tripp
- Americn DJ who stayed awake for 201 hours for charity
- few days in he developed mental disturbance
- hallucinations (seeing spiders)
- paranoid delusions
- thinking that food was drugged
- after slept for 24 hours and felt restored
- uncontrolled observations
- Randy Gardner (Dement)
- stayed awake for 264 hours
- vision blurred speech became disorganised and mildly paranoid
- during recovery sleep 50% REM
- little control and retrospective
- Peter tripp
- Animals
- Jouvet et al
- died after 33 days
- could of been due to stress
- Jouvet et al
- Human fatal familial insomnia
- rare inherited condition
- when they reach middle age they stop sleeping
- deaths follows two years later
- due to Inalamus in the brain
- could be due to brain damage
- based on individual case studies
- exercise increases need for sleep
- sleep needed to restore proteins and biochemical
- Shapiro found that runs slept for two hours more after a run and SWS increased
- Evolutionary approach contradicts
- unilateral sleep doesn't contain REM
- why don dolphins and fur seals need restoration sleep
- Young says we need to know more about species to compare environmental pressures and restoration needs
- theory devised by Oswald
- SWS
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