4.1-4.3

Question 1

is a person’s awareness of everything that is going on around him or her at any given moment.

Answer 1

Consciousness

Question 2

a state in which thoughts, feelings, and sensations are clear, organized, and the person feels alert.

Answer 2

Waking consciousness

Question 3

a state in which there is a shift in the quality or pattern of mental activity as compared to waking consciousness.

Answer 3

Altered State of Consciousness

Question 4

a cycle of bodily rhythm that occurs over a 24-hour period.

Answer 4

Circadian Rhythm

Question 5

circa

Answer 5

about

Question 6

diem

Answer 6

day

Question 7

tiny section of the brain that innfluences that glandular system.

Answer 7

Hypothalamus

Question 8

deep within the hypothaalamus; the internal clock that tells people when to wake up and when to fall asleep.

Answer 8

Suprachiasmatic Nucleus

Question 9

brief sidesteps into slep lasting only a few seconds.

Answer 9

Microsleeps

Question 10

any significant loss of sleep, resulting in problems in concentration and irratability.

Answer 10

Sleep deprivation

Question 11

theory of sleep proposing that animals and humans evolves sleep patterns to avoid predators by sleeping whenn predators are most active.

Answer 11

Adaptive theory

Question 12

theory of sleep proposing that sleep is necessary to the physical health of the body and serves to replenish chemicals and repair cellular damage.

Answer 12

Restorative Theory

Question 13

allows scientists to see brain wave activity as a person passes through the various stages of sleep and to determine what type of sleep the person has entered.

Answer 13

Electroencephalograph (EEG)

Question 14

brain waves that indicate a state of relaxation or light sleep.

Answer 14

Alpha waves

Question 15

brain waves indicating the early ages of sleep.

Answer 15

Theta waves

Question 16

long, slow waves that indicate the deepest stage of sleep.

Answer 16

Delta waves

Question 17

stage of sleep in which the eyes move rapidly under the eyelids and the person is typically experiencing a dream.

Answer 17

Rapid Eye Movement (REM)

Question 18

any of the stages of sleep that do not include REM.

Answer 18

NREM (non-REM) sleep

Question 19

light sleep. May experience:

Answer 19

Non-REM Stage One

Question 20

vivid visual events.

Answer 20

Hypnagogic Images

Question 21

knees, legs, or whole body jerks.

Answer 21

Hypnic Jerk

Question 22

sleep spindles (brief burst of activity only lasting a second or two).

Answer 22

Non-REM Stage Two

Question 23

delta waves pronounced.

Answer 23

Non-REM Stages Three and Four

Question 24

when 50%+ waves are delta waves.

Answer 24

Deep sleep

Question 25

paradoxical sleep (high level of brain activity).

Answer 25

REM sleep

Question 26

increased amounts of REM sleep after being deprived of REM sleep on earlier nights.

Answer 26

REM rebound