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Sleep. Studies of sleep deprivation Explanations of sleep Restoration theory Ecological theory Implications of sleep deprivation studies for these theories. www.psychlotron.org.uk. Sleep deprivation. Rechtschaffen & Bergman (1995) Increased appetite, metabolism imply body working harder
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Sleep • Studies of sleep deprivation • Explanations of sleep • Restoration theory • Ecological theory • Implications of sleep deprivation studies for these theories www.psychlotron.org.uk
Sleep deprivation • Rechtschaffen & Bergman (1995) • Increased appetite, metabolism imply body working harder • Immune function starts failing under prolonged deprivation • Suggests sleep necessary for normal biological functioning www.psychlotron.org.uk
Sleep deprivation • Webb & Bonnett (1979a) • No obvious physiological effects following restricted sleep • Tendency to recover missed sleep the following night • ‘Rebound’ suggests that sleep is a necessary function www.psychlotron.org.uk
Sleep deprivation • Webb & Bonnet (1979b) • No apparent physiological effects following gradual reduction in sleep to 4hrs • Implies that some of our sleep is optional www.psychlotron.org.uk
Sleep deprivation • Individual case studies • Wide variety of effects from mild to severe imply broad individual differences • Effects may be from sleep deprivation or possible pre-existing pathology • Difficult to generalise from single cases www.psychlotron.org.uk