Consciousness and Sleep Worksheet

Which of the following best defines "consciousness" as described in the material?

• A state of awareness, including a person’s feelings, sensations, ideas, and perceptions

• A state of complete unawareness and inactivity

• A period of rapid eye movement and dreaming

• A biological clock that regulates sleep

What is an altered state of consciousness?

• A state of complete awareness

• A lack of complete awareness

• A period of intense physical activity

• A time when the brain is totally inactive

Which of the following is NOT listed as a reason why we sleep?

• Restorative

• Primitive hibernation

• Adaptive

• Increase metabolism

Which stage of sleep is characterized by large-amplitude delta waves?

• Stage I

• Stage II

• Stage III

• REM

During which stage of sleep are sleepwalking and bed-wetting most likely to occur?

• Stage I

• Stage II

• Stage IV

• REM

What is a key characteristic of REM sleep?

• Large-amplitude delta waves

• Rapid eye movements and high levels of brain activity

• Unresponsiveness to the environment

• Bed-wetting

How often does the sleep cycle repeat?

• Every 30 minutes

• Every 60 minutes

• Every 90 minutes

• Every 120 minutes

Which statement about the brain during sleep is correct?

• The brain is totally inactive during sleep

• The brain is partially inactive during sleep

• At no point is the brain totally inactive during sleep

• The brain is only active during REM sleep

How much sleep a person needs varies by which of the following?

• Diet

• Stage of life

• Physical activity

• Time of year

What is the function of the circadian rhythm?

• Controls sleep cycles directly

• Regulates physiological responses during a 24-hour period

• Prevents dreaming

• Causes sleep disorders