Sleep & dreaming* GCSE

Key Concepts

• Functions, Features, and Benefits of Sleep:

• • Healthy brain function
  • Physical repair and rejuvenation
  • Emotional stability and regulation
  • Stages of the sleep cycle and dreaming occurrence
  • Role of the pineal gland and melatonin in regulating sleep
• Causes of Sleep Disorders:

• • Sleep onset insomnia
  • Sleep maintenance insomnia
• Endogenous Pacemakers and Exogenous Zeitgebers:

• • Role in regulating the sleep-wake cycle

Theories/Explanations

• The Nature of Dreaming:

• • Different theories explaining the purpose and mechanisms of dreaming
• The Freudian Theory of Dreaming:

• • The unconscious mind and its influence on dreams
  • Role of repression and wish fulfilment
  • Manifest and latent content of dreams
  • Criticisms of the theory, including subjectivity
• The Activation Synthesis Theory of Dreaming:

• • Role of REM sleep
  • Brain activity during sleep, including the limbic system and neurons in the pons
  • Synthesis process in the cerebral cortex
  • Criticisms of the theory, including reductionism/holism debate

Research Studies

• Freudian Theory of Dreaming Research Study:

• • Freud (1918) - Dream analysis study of 'The Wolfman'
• Activation Synthesis Theory of Dreaming Research Study:

• • Williams et al. (1992) - Study on Bizarreness in Dreams and Fantasies: Implications for the Activation Synthesis Hypothesis

Application

• Development of Treatments for Insomnia:
  • Features of insomnia and its management through relaxation techniques
  • Role of the physical environment in insomnia and its treatment through improved sleep hygiene
  • Impact of neurological damage to the hypothalamus on sleep regulation