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psychology > why do we sleep > Flashcards

why do we sleep Flashcards

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1
Q

three theories on why we sleep

A
  • restorative
  • evolutionary
  • information consolidation
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2
Q

restorative function

A
  • we sleep in order to seek restoration, healing the body and mind
  • NREM sleep is important for restoring physiological functions
    -REM sleep is essential for restoring mental functions
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3
Q

evolutionary

A
  • sleep evolved as a means of conserving energy
  • species have adapted to sleep during periods of time when wakefulness would be the most hazardous
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4
Q

information consolidation theory

A
  • suggests that people sleep in order to process information that has been acquired during the day
  • sleep allows the brain to prepare for the day to come
  • sleep helps cement the things we have learnt during the day into long-term memory
  • lack of sleep has serious impacts on the ability to recall and remember information
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5
Q

benefits of good nights sleep

A
  • better cognitive skills
  • improved memory
  • better levels of attention
  • improved mood
  • improved immune system
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6
Q

how do we get good nights sleep

A
  • sleep hygiene: healthy habits, behaviours and environmental factors that can be adjusted to help you have good nights sleep
  • habits; using your bed for sleep only, no caffeine close to bed, limit light exposure before bed, having consistent sleep and wake times
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7
Q

sleep deprivation

A
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8
Q

short term (partial) effects of sleep deprivation (physiological, BODY)

A
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9
Q

prolonged (total) effects of sleep deprivation (physiological, BODY)

A
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10
Q

short term (partial) effects of sleep deprivation (psychology, MIND)

A
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11
Q

prolonged (total) effects of sleep deprivation (psychology, MIND)

A
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12
Q

sleep loss and the brain

A
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13
Q

BAC and sleep deprivation

A
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14
Q

Randy Gardener

A
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15
Q

three theories on why we need sleep

A
  • restorative
  • evolutionary
  • information consolidation
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16
Q

restorative function

A
  • we sleep in order to seek restoration,
    healing the body and mind.
  • NREM sleep is important for restoring
    physiological functions,
  • REM sleep is essential in restoring
    mental functions.
17
Q

evolutionary purpose

A
  • sleep evolved as a mean of conserving energy
  • have adapted to sleep during periods of time when wakefulness would be most hazardous
18
Q

information consolidation theory

A
  • sleep suggests that people sleep in order to process information that has been acquired during the day
  • sleep allows the brain to prepare for the day to come
  • sleep helps cement the things we have learned during the day into long-term memory
  • lack of sleep has a serious impact on the ability to recall & remember information
19
Q

benefits of good night sleep

A
  • better cognitive skills
  • improved memory
  • better levels of attention
  • improved mood
  • improved immune system
20
Q

how to get good night sleep

A
  • sleep hygiene; healthy habits, behaviours and environmental factors that can be adjusted to help you have a good nights sleep
  • habits like; using your bed only for sleep, no caffeine near bed time, limiting light exposure before bed, having consistent sleep & wake time
21
Q

sleep deprivation

A
  • is the general term used to describe a state caused by inadequate quantity or quality of sleep
22
Q

physiological short term (partial) sleep deprivation causes

A
  • hand tremors, slurred speech, sleepiness/fatigue, droopy eyes, difficulty focussing eyes
23
Q

physiological prolonged (total) sleep deprivation causes

A
  • body temp to decrease, respiration to slow, impairment to immune system and reduction in production of some hormones
24
Q

psychological short term (partial) sleep deprivation causes

A
  • lack of concentration, short attention span, feel irritable and moody, anxiety, lack of motivation, problems with memory
25
Q

psychological prolonged (total) sleep deprivation causes

A
  • irrational thought process, hallucinations, depression, paranoia
26
Q

sleep loss & the brain

A
  • attention
  • executive function
  • emotional function
27
Q

peter tripp

A
  • in 1959 peter stayed awake for 201 hours, he got hallucinations and delusions
28
Q

BAC and sleep deprivation

A
  • 17-19 awake is comparable to a BAC of 0.05.
    – 21-24 awake is comparable to a BAC of 0.08-0.1.
  • when sleep deprived you have: lower memory abilities, irritability, less problem solving skills, inability to pay attention/concentrate

psychology (10 decks)

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