Psychology Chp 6-7 Flashcards

1
Q

Consciousness

A

the level of awareness a indvidual has of their thoughts, feelings, perceptions, and existence.

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2
Q

Psychological construct

A

agreed upon and description and understanding of psychological phenomena that cannot be overtly measured or observed

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3
Q

NWC Normal waking conciousness

A

a state of consciousness in which an individual is awake and aware

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4
Q

ASC Alterted state conciousness

A

a state of conciousness that is distincally different from normal waking conciousness in terms of quality of experience and levels of awareness

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5
Q

Sleep

A

a regular and naturally occurring state of conciousness that involves a loss of awareness and disnegagement with internal and external stimuli

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6
Q

REM

A

rapid eye movement a type of sleep charcaterized by rapid eye movement, high levels of brain activity and low levels of physical activity

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7
Q

NREM

A

non rapid eye movement a type of sleep charcaterized by lack of rapid eye movement and is subdivided into three stages

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8
Q

Sleep episode

A

the full duration of time spent asleep

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9
Q

Sleep cycle

A

approximately 90 minute period that repeats during a sleep period in which an individual progresses through stages of REM and NREM

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10
Q

Name 3 characteristics of REM

A
  • High active brain less active body
  • Vivid dreams occur
  • Takes up 20-25% of sleep episodes
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11
Q

Name 3 characteristics of NREM

A
  • Less active brain
  • Muscle movement is possible
  • Takes up 75-80% of sleep episodes
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12
Q

What are the 3 stages of NREM

A

NREM stage 1 - Transitions from awake into light sleep, hypangotic state. Loses awareness but aware of faint sounds, can be easily woken up.

NREM stage 2 - Light sleep, majority of sleep is spent in stage 2. Sleeper is considered truly asleep due to brain waves.

NREM stage 3 - Deep stage of sleep, difficult to wake sleeper in this stage. If woken sleeper is drowsy and disorientated. Sleep walking and talking occur in this stage

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13
Q

What is EEG

A

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

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14
Q

What is EMG

A

a device that detects, amplifies, and records electrical activity of the body’s muscles.

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15
Q

What is EOG

A

a device that detects, amplfies, and records electrical activity of the muscles responsible for eye movement

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16
Q

Sleep diaries
Info in sleep diaries

A

a record containing self reported descriptions from an individual about their sleeping periods.
- Duration of sleep
- Quality of sleep
- Thoughts and feelings before and after sleep

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17
Q

Video monitoring

A

the use of a camera and audio technologies to record an individual as they sleep

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18
Q

Biological rhythms

A

repeated biological processes that are regulated by internal mechanisms

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19
Q

Circadian rhythms

A

biological and behavioural changes that occur as part of a cycle that lasts around 24 hours

20
Q

Sleep wake cycles

A

24 hour cycle that is made up of time sleeping and time spent awake and alert

21
Q

Ultradian rhythms

A

biological and behavioural changes that occur in a cycle that lasts less then 24 hours

22
Q

SCN superchiasmatic nucleus

A

an area of hypothalamus that is responsible for regulating an individuals sleep wake patterns

23
Q

How does SCN regulate sleep wake cycle

A

the SCN receives info from both external and internal cues to help modulate circadian rhythm

24
Q

Pineal gland

A

a gland in brain responsible for the production and release of melatonin

25
Q

Melatonin

A

a hormone released by pineal gland typically at night time to induce sleep

26
Q

Sleep deprivation

A

Inadequate quantity and or quality of sleep

27
Q

Full sleep deprivation

A

when individual has no sleep within 24 hour period

28
Q

Partial sleep deprivation

A

when individual sleeps for some duration within 24 hour period but sleep duration is short or quality of sleep is poor

29
Q

Effects of sleep deprivation (A)

A

Affective - changes in emotions and emotional responses that arise from sleep deprivation
- reduced empathy
- reduced ability to cope with stress
- increase in mood swings

30
Q

Affects of sleep deprivation (B)

A

Behavioural - changes in actions and the ability to control them that arise from sleep deprivation
- Fatigue and lack of energy
- Excessive sleepiness during day
- Increased engaging in risk taking behaviours

31
Q

Affects of sleep deprivation (C)

A

Cognitive - the changes in mental processes that arise from sleep deprivation
- Reduced concentration
- Lapses in attention
- Illogical/irrational thinking

32
Q

Blood alcohol concentration (BAC)

A

A measure of how much alcohol is in a persons blood stream
- 0.05 17 hours of sleep deprivation (partial)
- 0.10 24 hours of sleep deprivation (full)

33
Q

ABC effects of sleep deprivation compared to BAC

A

A - happy, excited, angry, sad
C - cognitive distoriations, slower mental processes, and decreased ability to solve and reasons

34
Q

Sleep disorders

A

disturbances to typical sleeping and walking patterns

35
Q

Circadian rhythm sleep disorders

A

sleep disorders that interfere with the typical regulation of the circadian rhythm of sleep leading to change in sleep wake cycle

36
Q

Causes and effects of circadian sleep disorders

A

Cause - Disruption of sleep wake cycles, biological issues or shift work

Effect - Fatigue, Irratibility, and amplified emotional response

37
Q

Delayed sleep phase syndrome

A

type of circadian rhythm sleep disorders in which sleeping and waking occur later then usual

38
Q

Advanced sleep phase disorder

A

type of circadian rhythm sleep disorders in which sleeping and waking occur earlier then usual

39
Q

Shift work

A

an occupation that involves working at unusual hours, such as working overnight

40
Q

Bright light therapy

A

a method used to adjust a persons circadian rhythm through exposure to a high intensity light source

41
Q

Sleep hygiene

A

the practices and habits that promote a individuals sleep patterns

42
Q

Zeitgbers

A

external cues from environment that affect circadian rhythm.

43
Q

daylight Z

A

the typical light an individual is exposed to during the day and is mostly blue light

44
Q

blue light Z

A

a type of light that can be emitted both naturally and artificially

45
Q

temperature Z

A

the degree of external heat from environment that can influence quality and quantity of sleep

46
Q

eating and drinking patterns Z

A

what, when and how much food is consumed by an individual

47
Q

foods that can impact sleep Z

A

High fat food
High sugar food
Spicy food
Alcohol
Caffeine