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Psychology 3/4 > chap 6- the demand for sleep > Flashcards

chap 6- the demand for sleep Flashcards

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1
Q

what is consciousness

A

the awareness of internal and external environments at any moment

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2
Q

what does consciousness include

A

thoughts, feelings, sensations, perceptions and memories that you are aware of at any given time

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3
Q

what is a psychological construct

A

a phenomena that is believed to exist but cannot be directly measured

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4
Q

what are 3 characteristics of NWC

A

moderate to high levels of awareness
accurate perception of reality
a degree of self control

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5
Q

what are 3 characteristics of ASCs

A

low levels of awareness
lack of self control
distorted perceptions of reality

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6
Q

what is sleep

A

a naturally occurring state of consciousness that we experience every day

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7
Q

what is sleep characterized by

A

a lack of awareness of the external environment and is accompanied by numerous physiological changes compared with normal waking consciousness

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8
Q

what are the two types of sleep

A

non-rapid eye movement sleep (NREM) and rapid eye movement sleep (REM)

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9
Q

how many stages of NREM are there

A

3

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10
Q

does sleep become deeper as the stages of NREM progress

A

yes

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11
Q

does NREM replenish the body or the brain

A

the body

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12
Q

do bodily rates become more regular during NREM sleep

A

yes

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13
Q

does activity of the brain slow down or speed up in NREM

A

slows down

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14
Q

NREM stage 1 waves information

A

theta waves begin to replace alpha waves

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15
Q

when may hypnic jerks be experienced

A

in NREM stage 1

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16
Q

how long does NREM stage 1 last for

A

2-10 minutes

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17
Q

bodily information about NREM stage 1

A

movement is minimal, heart/breathing/metabolic rates aswell as blood pressure begin to decrease

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18
Q

what is the hypnogogic phase

A

the transition from wakefulness into NREM stage 1

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19
Q

how long does NREM stage 2 last for

A

20-30 minutes

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20
Q

what happens to bodily rates during NREM stage 2

A

heart/breathing/metabolic rates continue to decrease

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21
Q

is a sleeper still receptive to loud noises/external stimuli during NREM stage 2

A

yes

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22
Q

when is the deep sleep during NREM

A

stage 3 as it is difficult to wake from

23
Q

brain waves in NREM stage 3

A

mostly delta waves as it is a slow wave sleep (SWS)

24
Q

how long does NREM stage 3 last for and how does this change over the night

A

20-40 minutes, this decreases in length over the night

25
Q

what are bodily rates like in NREM stage 3

A

heart/breathing rate stabilize, muscles are relaxed and eyes show little movement.

26
Q

when do quick movements of the eyes under the eyelids occur

A

REM sleep

27
Q

is the body active in REM sleep

A

the brain and internal organs are very active despite REM sleep being a very deep type of sleep

28
Q

how do neurons in the brain behave in REM sleep

A

as they would when we are awake

29
Q

what is REM sleep helpful for

A

brain development and brain health, research also suggests it is helpful for learning and memory

30
Q

how can physiological responses be measured

A

EEG, EMG or EOG

31
Q

what does EEG stand for

A

electroencephalograph

32
Q

what does EMG stand for

A

electromyograph

33
Q

what does EOG stand for

A

electro-oculargraph

34
Q

what is an EEG

A

a device that detects, amplifies and records the electrical activity of the neurons in the brain

35
Q

what does an EEG produce

A

a recording of brainwave patterns which can be analyzed and interpreted

36
Q

beta waves

A

low amplitude

37
Q

akpha waves

A

low-medium amplitude

38
Q

theta waves

A

medium-high amplitude

39
Q

delta waves

A

high amplitude

40
Q

what does an EOG do

A

detects, amplifies and records the electrical activity of the muscles responsible for controlling eye movements

41
Q

what does an EOG provide

A

an indication of the changes in eye movement that occurs through a nights sleep
shows what stage of sleep a person is in

42
Q

what does an EMG do

A

detects, amplifies and records the electrical activity of muscles of the body.
shows what stage of sleep a person is in

43
Q

what are other techniques to measuring sleep

A

self reports
sleep diaries
video monitering

44
Q

what is a circadian rhythm

A

a sleep wake cycle that takes place once every 24 hours.
body temp and melatonin production are also circadian rhythms

45
Q

what is a sleep wake cycle

A

an altering pattern of being awake and falling asleep

46
Q

what is an ultradian rhythm,

A

a sleep cycle that is a biological, cyclical occurrence that operates more than once a day.

47
Q

how many cycles of sleep do we experience during a nights sleep

A

4-5 consisting of alternating episodes of REM and NREM sleep. each lasting about 90 minutes

48
Q

brain waves during NREM stage 2

A

predominately theta waves

49
Q

how much sleep does a newborn need

A

16 hours
50% NREM

50
Q

how much sleep does a child need

A

10-11 hrs
75-80% NREM

51
Q

how much sleep does an adolescent need

A

9 hrs
80% NREM

52
Q

how much sleep does an adult need

A

7-8 hrs
80% NREM

53
Q

how much sleep do the elderly need

A

6-7 hrs
80% NREM

Psychology 3/4 (22 decks)

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