The Biopsychology of Sleeping and Dreaming

The video explores the concept of sleep, its stages, and the brain's activity during sleep. It delves into why we dream and the theories behind it, such as Freud's ideas and the activation synthesis theory. The video also examines why we sleep, discussing recuperation and adaptation theories, and the role of circadian rhythms. It highlights sleep's functions, including memory consolidation and health benefits, and touches on the effects of sleep deprivation.

What is the average duration of sleep for the conscious mind to shut down?

• 11 to 12 hours

• 9 to 10 hours

• 7 to 8 hours

• 5 to 6 hours

Which stage of sleep is characterized by theta waves?

• REM

• N1

• N2

• N3

What are K-complexes associated with?

• Stage N3

• Stage N1

• REM sleep

• Stage N2

During which stage of sleep do rapid eye movements occur?

• N1

• N2

• REM

• N3

What does the activation-synthesis theory suggest about dreams?

• Dreams are a way to predict the future

• Dreams are meaningful and related to desires

• Dreams are random signals processed by the cortex

• Dreams are a reflection of past experiences

Which theory suggests that sleep helps restore homeostasis?

• Evolutionary theory

• Recuperation theory

• Circadian rhythm theory

• Adaptation theory

What is the term for the natural cycle of waking and sleeping?

• Circadian rhythm

• Sleep cycle

• Homeostasis

• REM cycle

Which hormone is associated with circadian rhythms?

• Dopamine

• Cortisol

• Insulin

• Adrenaline

What is one of the key functions of sleep related to memory?

• Memory deletion

• Memory creation

• Memory consolidation

• Memory distortion

What is a common effect of sleep deprivation?

• Reduced immune function

• Enhanced cognitive function

• Improved mood

• Increased energy