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Describe and evaluate two theories of sleep (
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Describe and evaluate two theories of sleep (24 marks) When people are asleep there are not in a total loss of consciousness but a gradual reduction in awareness. Sleep occurs in stages and they are started of by the alpha stage this is where there is smooth electrical activity and this is seen as a state of relaxation as there is slow heart rate and reduction in muscle tension. The second stage the beta stage is where there is irregular electrical activity and this is associated with a state of arousal the Person can also be woken easily. Theta activity is associated with an EEG (electroencephalograph) and this occurs during early stages of slow wave sleep and REM sleep. The last stage of sleep is delta activity this is where there is regular electrical activity and occurs during the deepest stages of slow wave sleep and people in this stage of...
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