Restoration theory of sleep

Oswald and Hornes Restoration Theory

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  • Restoration Theory
    • Oswald (1966)
      • AO1
        • Every sleep stage is essential
          • Stages 1-4: Restoration of the body
          • REM: Restoration of the brain
        • Effects of sleep deprivation: Irritability, Impaired moral judgement, cognitive impariment, tremors and aches
          • Physical and Mental effects
      • AO2
        • Sleep patterns of runners - slept for an extra hour for 2 nights following a marathon - also increase SWS
      • IDA
        • RLA: Advise athletes on importance of sleep to repair body tissues and muscles - short sleep cycles after training
        • Explains why babies sleep for up to 18hrs per day - encourage parents to allow them to sleep
    • Horne (1988)
      • AO1
        • 'Core sleep' = SWS 4 and REM are essential for brain restoratiom
        • SWS 1-3 aren't essential
          • Restoration of the body occurs whilst awake and resting
            • AO1
              • 'Core sleep' = SWS 4 and REM are essential for brain restoratiom
              • SWS 1-3 aren't essential
                • Restoration of the body occurs whilst awake and resting
        • AO2
          • Jouvert - places cats on plant pots, balance during NREM,but fell off into the water when they went into REM, so they were REM deprived.
            • Cats became distressed and died after around 35 days
          • Fatal familiar insomnia - usually die within a year
            • Rare-hard to generalise
            • Doesn't prove causal relationship
          • Randy Gardner
            • 17yr old school boy, broke the record by staying awake for 264hrs and 12 minutes (over 11 days)
            • Aim: Study effects of sleep dep. Researchers read about the attempt and contacted him to monitor him at regular intervals during and after the attempt
              • By day 2 - trouble focusing his vision. Day 3 - experiencing emotional fluctuations and coordination trouble. Day 7 - Experiencing paranoia, hallucinations and memory lapses, also felt physically jaded.
            • Not EEG monitored - may have had micro sleep
        • IDA
          • Shows importance of good quality sleep
          • Case study
          • Randy Gardner
            • 17yr old school boy, broke the record by staying awake for 264hrs and 12 minutes (over 11 days)
            • Aim: Study effects of sleep dep. Researchers read about the attempt and contacted him to monitor him at regular intervals during and after the attempt
              • By day 2 - trouble focusing his vision. Day 3 - experiencing emotional fluctuations and coordination trouble. Day 7 - Experiencing paranoia, hallucinations and memory lapses, also felt physically jaded.
            • Not EEG monitored - may have had micro sleep

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