4.6 QUIZ: Sleep & Dreams

What is the purpose of sleep?

• To conserve energy

• To clear our minds of useless information

• To recover from exhaustion and stress

• To keep humans out of harm's way at night

Which stage of sleep is characterized by rapid eye movements and dreaming?

• Stage I

• Stage II

• Stage III

• REM sleep

What is the main cause of sleep apnea?

• Excess weight

• Mental stress

• Enlarged tonsils

• Airway blockage

What is the condition characterized by suddenly falling asleep or feeling very sleepy during the day?

• Insomnia

• Sleep apnea

• Narcolepsy

• Nightmares

How do dreams change as the night progresses?

• They become shorter and less vivid

• They become longer and more vivid

• They become less frequent

• They become more abstract

What did Sigmund Freud believe about dreams?

• They contain clues to unconscious thoughts and desires

• They serve no function

• They cannot be interpreted

• They help people solve problems

What is the purpose of daydreaming?

• To improve creativity

• To relieve stress

• To enhance memory

• To increase concentration

What causes nightmares?

• Stress or anxiety

• Sleep deprivation

• Scary books and movies

• All of the above

What are the symptoms of night terrors?

• Frequent occurrences

• Major distress or impairment during the day

• Problems with concentration or memory

• All of the above

What are the symptoms of sleepwalking?

• Walking or performing other complex behaviors while asleep

• Difficulty falling asleep or staying asleep

• Excessive daytime sleepiness

• All of the above