unit 2 : sleep patterns

Question 1

circadian rhythm

Answer 1

• biological clock, causes changes in energy & temp

Question 2

REM sleep (paradoxical)

Answer 2

• rapid eye movement sleep
• reoccurring sleep stage where vivid dreams commonly occur

Question 3

what waves occur when your awake & relaxed?

Answer 3

alpha waves

Question 4

what waves occur when your alert / waking up?

Answer 4

beta waves

Question 5

what waves occur when you’ve just fallen asleep? (NREM-1)

Answer 5

theta waves

Question 6

what waves occur when you could be easily awakened but asleep? (NREM-2)

Answer 6

sleep spindles , or possibilbly delta waves

Question 7

what waves occur when your in deep sleep?

Answer 7

delta waves

Question 8

how long does a sleep cycle last?

Answer 8

90 minutes

Question 9

suprachiasmatic nucleus (SCN)

Answer 9

cell clusters in the hypothalamus that controls circadian rhythm & causes pineal gland to adjust melatonin

Question 10

pineal gland

Answer 10

adjusts melatonin production in response to SCN & light

Question 11

melatonin

Answer 11

sleep-inducing hormone

Question 12

evolutionary benefit to sleep

Answer 12

protection

Question 13

biological benefit of sleep

Answer 13

restore & repair brain tissue / neurons (glial cells)

Question 14

biological & cognitive benefit to sleep

Answer 14

strengthens & stabilizes neural memory

Question 15

cognitive benefit of sleep

Answer 15

promotes creative thinking, problem solving

Question 16

benefit of sleep : growth process

Answer 16

pituitary gland releases a growth hormone

Question 17

effects of sleep deprivation

Answer 17

• release of hormone ghrelin, makes you hungry = fatter
• sleep debt, less energy
• irritability

Question 18

sleep debt

Answer 18

the amount of sleep minus the amount you actually get (ex : 8-6 = 2)

Question 19

insomnia

Answer 19

persistent problem of falling & staying asleep

Question 20

narcolepsy

Answer 20

suddenly attacks of overwhelming sleepiness. lasting less than 5 minutes
(REM sleep)

Question 21

sleep apnea

Answer 21

being temporarily unable to breathe while sleeping which causes “snoring” often not remembered.

Question 22

night terrors

Answer 22

intense episodes of fear during NREM-3 sleep, typically occurring in children. no memory afterwards

Question 23

REM rebound

Answer 23

the tendency for REM sleep to increase following REM sleep deprivation

Question 24

freud’s wish fulfillment

Answer 24

dreams express unconscious desires

Question 25

neural activation theory

Answer 25

REM sleep triggers neural activity that evokes random visual memories