Unit 2 Part 3: Sleep and Dreams Flashcards Preview

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Flashcards in Unit 2 Part 3: Sleep and Dreams Deck (15)
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1
Q

the periodic loss of natural consciousness, distinct from coma, anesthesia, or hibernation

A

sleep

2
Q

What is sleep evolutionarily designed to do?

A
  • protect us from perils of night
  • consolidate memories
  • enhance cognitive functions
3
Q

region of the cerebral cortex involved in planning, control, and execution of voluntary movements.

A

Motor Cortex

4
Q

What prevents someone from moving while sleeping?

A

motor command signals are blocked by the Brain Stem

5
Q

During which sleep cycle do eyes remain active?

A

REM (Rapid Eye Movement)

6
Q

What sleep cycle would you consider to be the deep sleep experience?

A

REM

7
Q

natural internal process that regulates the sleep wake cycle and repeats on each rotation of the earth

A

Cricadian Rythm

8
Q

sleeping signals

A

melatonin

9
Q

waking signals

A

acetylcholine

10
Q

Stages of Sleep

A
  1. Waking Beta
  2. Waking Alpha (relaxed, but awake)
  3. Non-REM 1 (can experience hallucinations, images, falling, jerking)
  4. Non-REM 2
  5. Non-REM 3 (delta brain waves - deep sleep)
  6. REM (roughly 10 min w/ vivid dreaming)
11
Q

what happens after the sleep cycle is complete?

A

brain goes back to Non-Rem 2 and completes cycle from there

12
Q

What side affects may lack of sleep have?

A

depression
illness
anxiety
diminished cognitive abilities

13
Q

What are the sleep disorders?

A

Insomnia
Narcolepsy
Sleep Apnea
Night Terrors

14
Q

consistent lack of sleep and/or inability to maintain sleep

A

Insomnia

15
Q

uncontrolled bouts of falling asleep (short or long)

A

Narcolepsy