5.4 - Sleep and Dreaming

Question 1

Define “Hypnagogic State”:

Answer 1

Just before sleep, getting drowsy. Known as pre-sleep consciousness

Question 2

What’s a “Hypnic Jerk”?

Answer 2

A sudden quiver or sensation of dropping, as…..

Question 3

Circadian Rhythm?

Answer 3

Naturally occuring 24 or 25hr cycle

Question 4

What is REM Sleep?

Answer 4

A stage of sleep characterized by rapid eye movements and a high level of brain activity. Deepest level/stage

Question 5

What’s an EOG, and what does it do?

Answer 5

Electrooculograph; used to measure eye movements

Question 6

What stage of sleep are Beta Waves found in? What are their characterisitcs?

Answer 6

Beta Waves are emitted while we’re awake!!!

Question 7

What type of waves occur in Stage 1 sleep?

Answer 7

Theta Waves

Question 8

What are Sleep Spindles?

Answer 8

Irregular patterns in brain waves (add mroe)

Question 9

What kind of waves are prevalent in Stages 3 and 4 sleep?

Answer 9

Delta Waves, very high amplitude

Question 10

What is the last stage of sleep, and what kind of waves occur in this stage?

Answer 10

Sawtooth waves

Question 11

What’s a K Complex?

Answer 11

Find definition….

Question 12

How do our levels of sleep change throughout the night?

Answer 12

We spend less time in deep sleep throughout the night, and increasingly more time in REM sleep..

Question 13

What is Insomnia?

Answer 13

Difficulty in falling asleep or staying asleep

Question 14

What is Sleep Apnea?

Answer 14

When a person stops breathing for brief periods during sleep

Question 15

Define “Somnambulism”

Answer 15

When a person arises and walks around during sleep; usually during slow-wave sleep

aka Sleepwalking!

Question 16

Define “Narcolepsy”

Answer 16

Sudden attacks of sleep during waking activites

Question 17

What is Sleep Paralysis?

Answer 17

Experience of waking up but being unable to move

Question 18

What are Night Terrors?

Answer 18

Abrupt awakenings with panic and intense emotional arousal

aka Sleep Terrors

Question 19

What are the five major characteristics that distinguish dreaming from waking consciousness?

Answer 19

Intense Emotion

Illogical Thought

Meaningful Sensation

Uncritical Acceptance

Difficulty remembering dream on waking

Question 20

What is Freud’s view on dreams?

Answer 20

That they hold meaning.

Latent Content: The dream’s true underlying meaning

Manifest Content: Dream’s apparent topic or superficial meaning

Question 21

What type of waves are emitted when we’re drowsy or relaxed??

Answer 21

Alpha Waves

Question 22

What is emitted during Stage 2 of sleep cycles?

Answer 22

Sleep spindles and K Complexes

Question 23

What kind of waves are produced during REM sleep?

Answer 23

Sawtooth Waves

Question 24

What’s the Activation Synthesis Model?

Answer 24

The theory that dreams are produced when the brain attempts to make sense of random neural activity that occurs during sleep

Question 25

What part of the brain is less aroused during REM sleep?

Answer 25

The Prefrontal Cortex

Question 26

What parts of the brain are more highly aroused/activated during REM sleep?

Answer 26

Areas associated with fear or emotion; AMYGDALA

Also the Motor Cortex and Visual Association areas