Module 1.5B

Question 1

Sleep

Answer 1

A periodic, natural loss of consciousness- as distinct from unconsciousness resulting from a coma, general anesthesia, or hibernation.

Question 2

Circadian Rhythm

Answer 2

Our biological clock; regular bodily rhythms (for example, of temperature and wakefulness) that occur on a 24-hour cycle.

Question 3

REM Sleep

Answer 3

Rapid eye movement sleep; is a recurring sleep stage during which vivid dreams commonly occur. Also known as paradoxical sleep, because the muscles are relaxed but other body systems are active.

Question 4

Alpha Waves

Answer 4

The relatively slow brain waves of a relaxed, awake state

Question 5

NREM Sleep

Answer 5

Non-rapid eye movement sleep; encompasses all sleep stages except for REM sleep

Question 6

Hallucinations

Answer 6

False sensory experiences, such as seeing something in the absence of an external visual stimulus

Question 7

Hypnagogic Sensations

Answer 7

Bizarre experiences, such as jerking or a feeling of falling or floating weightlessly, while transitioning to sleep.

Question 8

Delta Waves

Answer 8

The large, slow brain waves associated with deep sleep.

Question 9

Suprachiasmatic Nucleus (SCN)

Answer 9

A pair of cell clusters in the hypothalamus that controls circadian rhythm. I response to the light, the SCN adjusts melatonin production, thus modifying our feelings of sleepiness.

Question 10

Why we Sleep

Answer 10

1. Sleep protects
2. Sleep resorted
3. Sleep aids in memory consolidation
4. Sleep feeds creative thinking
5. Sleep supports growth
6. Sleep conserves energy