Memory

Question 1

beta

Answer 1

wakeful, brain waves are rapid with frequent impulses of electrical activity

Question 2

alpha

Answer 2

awake but relaxed-drowsy, slow breathing and irregular brain waves

Question 3

theta

Answer 3

deep sleep, even slower and larger waves

Question 4

delta

Answer 4

deepest sleep, brain waves become progressively slower, larger and more irregular

Question 5

biological rhythms

Answer 5

a recurring, cyclical pattern of bodily changes

Question 6

circadian rhythms

Answer 6

a biological rhythm that takes place over a period of about 24 hours

Question 7

melatonin

Answer 7

wregulator of sleep-wake cycles and is stimulated by the darkness and inhibited by light

Question 8

stage 1

Answer 8

a transitional phase that occurs between wakefulness and sleep, where we drift off to sleep

1. a slowdown in rates of respiration and heartbeat
2. decrease in muscle tension and core body temp
3. Associated with both alpha and theta waves

Question 9

stage 2

Answer 9

body goes to state of deep relaxation

Theta waves are interrupted by sleep spindles

Question 10

stage 3 & 4

Answer 10

deep sleep or slow-wave sleep with low frequency and high amplitude of delta waves
Heart rate and respiration slow dramatically, it is much difficult to wake a person from sleep

Question 11

stage 5 REM

Answer 11

dreaming occurs in this stage, sleep is characterized by darting movements of the eyes under closed eyelids

Question 12

NREM

Answer 12

subdivided into four stages distinguished from each other and from wakefulness by characteristics patterns

Question 13

causes of interrupted sleep

Answer 13

stress, depression, drug use, age, and culture

Question 14

sleep rebound

Answer 14

a sleep-deprived person will fall asleep faster during subsequent opportunities for sleep

Question 15

sleep debt

Answer 15

result of insufficient sleep on a chronic basis

Question 16

theory of why we sleep

restorative theory

Answer 16

The function of sleep is to restore the body and mind from wear and tear that occurred
during awakeness.

Question 17

theory of why we sleep

circadian theory

Answer 17

Sleep is an aspect of circadian rhythms regulated by neural mechanisms that are the product of evolution.
Sleep evolved to keep humans out of harms way during the night.

Question 18

theory of dreaming

psychoanalytic

Answer 18

dreams are where the unconscious go

Question 19

theory of dreaming

cognitive

Answer 19

helps with problem solving, and provides memory

Question 20

theory of dreaming

biological

Answer 20

Brain stimulation may help develop & preserve neural pathways; restore brain proteins allowing for better learning & memory

Question 21

sleepwalking

Answer 21

partial arousal from stage 4 sleep, not fully conscious

Question 22

sleep terrors

Answer 22

a sense of panic, often accompanied by screams and attempts to escape from the environment

Question 23

nightmares

Answer 23

occurs in REM sleep and remembered in full vivid detail

Question 24

sleep talkers

Answer 24

usually mumbling of words and phrases that mean nothing

Question 25

narcolepsy

Answer 25

chronic neurological disorder caused by the brain's inability to regulate the sleep/wake cycles normally

Question 26

sleep apnea

Answer 26

episodes in which the sleeper's breathing stops can lead to high blood pressure, heart attacks, and strokes

Question 27

insomnia

Answer 27

consistent difficulty in falling or staying asleep for atleast three nights a week over a month's time