Psychology: Sleep And Dreams

Front 1

Consciousness

Back 1

a state of awareness, including a person's feelings, sensationgs, ideas, and perceptions

Front 2

List the 6 proposed reasons as to why we sleep

Back 2

1.) sleep is restorative; it allows people to "recharge their batteries"
2.) Sleep is the time when the brain recovers from exaustion and stress.
3.) Sleep is a type of primitive hibernation: we sleep to conserve energy.
4.) Sleep is an adaptive process; in earlier times, sleep kept humans out of harms way at night when they were the most vunerable.
5.) Sleep clears our mind of useless information.
6.) We sleep to dream.

Front 3

How is sleep characterized?

Back 3

Unresponsiveness to the environment and limited physical mobility.

Front 4

Describe Stage I of sleep

Back 4

-pulse slows, muscles relax
-breathing becomes uneven and brain waves become irregular
-lasts about 10 minutes
- marked by theta waves (lower amp. than alpha waves)

Front 5

Describe stage II of sleep

Back 5

This stage is part of the 90 minute cycle and occupies approximately 45-60% of sleep

Front 6

Circadian Rhythm

Back 6

a biological clock that is genetically programmed to regulate physiological responses within a time period of 24 to 25 hours

Front 7

REM Sleep

Back 7

a stage of sleep characterized by rapid eye movements, a high level of brain activity, a deep relaxation in muscles, and dreaming.

Front 8

Isomnia

Back 8

the failure to get enough sleep at night in order to feel rested the next day.

Front 9

Sleep Apnea

Back 9

a sleep disorder in which a person has trouble breathing while asleep

Front 10

Causes of Isomnia

Back 10

aniety or depression

Front 11

Causes of sleep apnea

Back 11

a blockage of the breathing passages; during this time, the dreamer is in fact choking.

Front 12

Narcolepsy

Back 12

a condition characterized by the suddenly falling asleep or feeling sleepiness/fatigue during the day.

Front 13

Nightmares

Back 13

unpleasant dreams in which the dreamer wakes up with a vivid remembrance of the movie-like dream

Front 14

Night Terrors

Back 14

sleep disruptions that occur during Stage IV of sleep, involving screaming, panic, or confusion.

Front 15

How long to night terrors tend to last?

Back 15

They can range from 5 to 20 minutes

Front 16

Sleepwalking

Back 16

walking or carrying out behaviors while asleep