RESTORATION THEORY OF
SLEEP
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Restoration Theory of Sleep: Function, REM and SWS, Oswald's Research, Neurotransmitters, Slides of Psychology of Human Development
The Restoration Theory of Sleep suggests that the body and brain restore themselves during sleep. According to this theory, REM sleep is essential for brain restoration, while SWS (stages 3 and 4) is crucial for body restoration. Oswald's research on patients with CNS damage and overdose patients showed increased REM sleep, suggesting it might be for brain tissue growth. Newborn babies also exhibit more REM sleep due to their rapid brain growth. Sleep is also important for conserving neurotransmitters, which are chemical messengers that carry electrical signals from neuron to neuron. During REM sleep, neurotransmitters are replenished for use during wakefulness. Horne labeled SWS and REM as 'core sleep,' believing that brain repairs occur during this stage. However, he also suggested that restoration can take place during wakeful rest.
What you will learn
- What is the Restoration Theory of Sleep and what are its functions?
- What is the role of REM sleep and SWS in the Restoration Theory of Sleep?
- What effect does sleep have on neurotransmitters?
- Why did Horne label SWS and REM as 'core sleep'?
- How does Oswald's research support the Restoration Theory of Sleep?
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RESTORATION THEORY OF
SLEEP
5 MINUTES
- According the RESTORATION THEORY , what is the function of SLEEP? 2) What did Adams and Oswald ( 1983 ) theorise? (What is REM sleep for?) What is SWS for?
ADAM AND OSWALD (1983)
They suggested NEW TISSUE GROWTH occurs during sleep.
It was suggested that; REM SLEEP โ the brain restores itself SLOW WAVE SLEEP (stages 3 and 4 ) โ the body restores itself.
OSWALD (1969)
Found in patients with damage to their CNS (spinal cord/brain) and patients who have taken an overdose (that may have damaged the brain) that they engaged in more REM sleep than normal subjects.
WAS THIS TO RESTORE
THE BRAIN TISSUE
DURING REM?
5 MINUTES
5 ) What effect does sleep have on
our levels of
NEUROTRANSMITTERS?
It is also suggested that sleep is an
important way of
CONSERVING
NEUROTRANSMITTERS.
What are
NEUROTRANSMITTERS?
As we go through the day, the amount of NEUROTRANSMITTERS in our bodies DECREASES. REM Sleep replenishes NEUROTRANSMITTERS for use during wakefulness
Oswald ( 1969 ) โ 5 MINUTES
What does OSWALD state happens
during SLOW WAVE SLEEP
(stages 3 and 4 )?
HORNE (1988) โ 5 MINUTES
What did HORNE label SWS and
REM sleep? Why does Horne
state this sleep is important?
What does HORNE label stages 1
and 3 of sleep?
HORNE ( 1988 )
Horne ( 1988 ) labelled SLOW WAVE SLEEP (SWS) and REM as โCORE SLEEP.โ He stated that during this stage, brain repairs for vital functioning.
EVALUATION OF THEORY
Shapiro et al (1981) Researcher marathon runners โ slept for about an hour more for TWO NIGHTS. SWS increased โ SUPPORT OR CONTRADICT THEORY? Horne and Minard (1985) โ put participants through exhausting tasks โ went to sleep quicker but did not sleep for longer.
WHAT IS BEING RESTORED?
๏ Theory says NEUROTRANSMITTERS ARE INCREASED. Think about what you know about brain activity during sleep, especially REM. Would this be the case? ๏ Horne (1988) AMINO ACIDS (what make up proteins) are only available for 5 hours after a meal. ๏ Therefore do you think PROTEIN SYNTHESIS (making proteins) would be possible during sleep?