How do levels of consciousness affect mental processes and behaviour? Flashcards

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1
Q

normal waking consciousness

A

a state of consciousness associated with being awake and aware of thoughts, feelings and perceptions from both the internal and external environment

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2
Q

altered state of conciousness

A

any state that is distinctly different from normal waking consciousness

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3
Q

define consciousness

A

an individuals level of awareness of internal events and their external environment, as an array of thoughts, feelings and perceptions

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4
Q

function of an EEG

A

Electroencephalograph: detects, amplifies and records electrical activity of the brain

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5
Q

function of an EOG

A

Electro-oculargraph: detects, amplifies and records electrical activity of the muscles surrounding the eyes

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6
Q

function of an EMG

A

Electromyograph: detects, amplifies and records electrical activity of skeletal muscles

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7
Q

an objective method of measuring consciousness

A

speed and accuracy on cognitive tasks

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8
Q

subjective measures of measuring consciousness

A

sleep diaries and video monitoring

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9
Q

how do controlled and automatic processes work during NWC

A

can complete multiple automatic processes at once, and an automatic and controlled at the same time, but very difficult to complete 2 controlled

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10
Q

the part of the brain that functions like a ‘biological clock’ and signals the release of melatonin and other hormones is the:

A

suprachiasmatic nucleus

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11
Q

the part of the brain that releases melatonin is the:

A

pineal gland

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12
Q

the function of melatonin is to:

A

induces drowsiness, lowers body temperature, and promotes sleep.

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13
Q

how do controlled and automatic processes work during an ASC

A

very difficult to complete controlled processes and divided attention is hard

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14
Q

factors that can determine an altered state of consciousness

A

levels of awareness, controlled and automatic processes, content limitations, perceptual and cognitive distortions, emotional awareness and self control

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15
Q

what are content limitations

A

the ability to control wha tis being thought about and stop unwanted or distressing thoughts

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16
Q

what brainwaves do stimulants normally produce

A

beta and sometimes alpha

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17
Q

what brainwaves do depressants normally produce

A

alpha and theta

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18
Q

examples of stimulants

A

nicotine, cocaine, methamphetamines and amphetamines, caffeine

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19
Q

examples of depressants

A

alcohol, cannabis, heroin, benzodiazepines, barbiturates, opioids

20
Q

what BAC is 17 hours of sleep deprivation equal to:

A

0.05

21
Q

what BAC is 24 hours of sleep deprivation equal to:

A

0.1

22
Q

what is an ultradian rhythm

A

a biological cycle that repeats more than once in a 24 period

23
Q

brainwaves present during NREM 1

A

alpha and theta

24
Q

brainwaves present during NREM 2

A

theta

25
Q

brainwaves present during NREM 3

A

delta and theta

26
Q

brainwaves present during NREM 4

A

delta

27
Q

when are dreams most likely to be experienced

A

REM

28
Q

when are dreams most likely to be experienced

A

REM

29
Q

consciousness is described as being

A

personal, selective, continuous and changing

30
Q

a circadian rhythm disorder is a:

A

sleep pattern that is misaligned with either the external environment, lifestyle demands, and social expectations

31
Q

what is a treatment often used for insomnia:

A

cognitive behavioural therapy

32
Q

treatment for circadian rhythm disorder

A

bright light therapy

33
Q

what is a dysomnia

A

a sleeping disorder characterised by an inability to fall or stay asleep, or excessive sleepiness

34
Q

what is a parasomnia

A

a sleep disorder characterised by abnormal behaviours, thought, dreams or perceptions during sleep or upon waking

35
Q

another name for sleep walking is

A

somnambulism

36
Q

what is sleep onset insomia

A

a persistent inability initiating or maintaining sleep

37
Q

what is REM rebound

A

a period of increased frequency of REM sleep following a period of inadequate amounts of REM

38
Q

define jet lag

A

a disruption to circadian rhythms caused by travel across timezones, causing the sleep wake cycle to be out of sync with the external environment

39
Q

what sleep stage is easiest to be woken up in

A

stage 1 NREM

40
Q

what are hypnic jerks

A

bursts of muscle activity often experienced during NREM 1

41
Q

what is REM behavioural disorder

A

a disorder characterised by a lack of atonia during REM sleep, resulting in movement and often the acting out of dreams.

42
Q

adolescents often experience a ________, resulting in a delay in the release of melatonin

A

sleep wake cycle shift

43
Q

the function of cortisol is to

A

increase arousal and reduce sleepiness

44
Q

where is the suprachiasmatic nucleus found

A

the hypothalamus

45
Q

when does atonia (muscle paralysis) occur

A

REM

46
Q

what is bright light therapy

A

a treatment often used for circadian rhythm disorders that involves exposing an individual to regulated amounts of light at certain times of the day, in order to align the sleep wake cycle with the external environment