Medicine Flashcards

1
Q

illness perspective in early 20th century

A

biomedical perspective

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2
Q

biomedical perspective

A

health is the absence of illness

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3
Q

current perspective on illness

A

biopsychosocial model

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4
Q

biopsychosocial model

A

social and cultural forces are fundamental to health and illness

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5
Q

how does the biopsychosocial model shift the patient’s perspective

A

focus on dealing with stress and coping mechanisms

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6
Q

how does the biopsychosocial model shift the doctor’s perspective

A

focus on looking at a patient in a social and cultural context

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7
Q

2 new fields of psychology

A
  1. health psychology

2. positive psychology

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8
Q

health psychology

A

how psychology, behavioral, and cultural factors shape health and illness

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9
Q

positive psychology

A

interest in positive, adaptive, creative, and fulfilling aspects of human life

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10
Q

how has the public shifted recently

A

increased immigration and therefore alternative healthcare

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11
Q

example of this public shift

A

meditation and Eastern cultures in North America

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12
Q

2 kinds of change associated with meditation

A
  1. changes during meditation

2. changes after meditation

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13
Q

changes during meditation

A

state changes

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14
Q

example of state changes

A

altered sensory or cognitive experiences

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15
Q

example of changes after meditation

A

healthier brain and better blood pressure

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16
Q

do all forms of meditation effect the body in the same way?

A

no

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17
Q

2 easy measurements that can be used to study meditation

A
  1. heart rate/blood pressure

2. respiration

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18
Q

meditation effect on blood pressure

A

both diastolic and systolic reductions

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19
Q

what causes blood pressure reductions in meditation (2 things)

A
  1. large muscle groups that are pressing against arteries relax
  2. artery walls relax
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20
Q

what else related to blood could meditation possibly help reduce (preliminary evidence)

A

heart attacks and strokes

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21
Q

breathing during meditation

A

slows down

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22
Q

how is breathing related to health

A

poor breathing = poor health

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23
Q

why does poor breathing = poor health

A

O2 consumption is related to metabolism

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24
Q

can O2 consumption be controlled?

A

no, it can be modified

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25
how can we modify O2 consumption
exercise, sleep, and meditation
26
effect of breathing on ANS
poor breathing worsens parts of the ANS
27
how does meditation effect oxygen consuption
involves slower and deeper breaths which increase O2, balance CO2, and increase nitric oxide
28
effect of nitric oxide in blood
opens up constricted blood vessels
29
one way of measuring stress
galvanic skin response (skin resistance)
30
how does skin indicate stress
low skin conductance indicates stress
31
meditation effect on galvanic skin response
meditators have high skin resistance
32
3 ways stress is different in meditators
1. reduced cortisol and catecholamines 2. reduced stress and depression 3. increased happiness and productivity
33
2 ways meditation helps immune system
1. improved immune system in cancer patients | 2. increased natural killer cells and helper T cells in HIV patients
34
which type of meditation is usually related to immune system
mindfulness
35
who studied meditation effect on the immune system
Davidson (2003)
36
Davidson experiment
8 week mindfulness program | - after gave everyone a flu vaccine
37
Davidson results
significant increase in left anterior brain activity (happiness) - increases in antibody responses
38
how was EEG activity and antibody response related in Davidson's study
positively correlated
39
what is a good sign of a healthy brain
thick cortex
40
what happens to the cortex as we age
it thins about .023 mm per year
41
disease associated with accelerated cortical thinning
Alzheimer's
42
who studied cortical thickness in meditators
Lazar (2005)
43
Lazar study of cortical thickness
viewed meditators in an MRI vs controls
44
cortical areas Lazar found to be different in meditators
1. insula (attention) 2. anterior part of brain (anteroception) 3. part of parietal cortex (sensory perception)
45
cerebral blood flow
responsible for meeting the brain's metabolic demands
46
too little cerebral blood flow
ischemia
47
who studied cerebral blood flow
Wang (2011)
48
4 purposes of Wang's study
1. are different brain areas active for different meditation types 2. is self report correlated to brain activity 3. do meditation and stress have opposite effect in the brain 4. do these effects last
49
kind of meditation used in Wang's study
concentration, mindfulness, and a control task
50
brain areas active for concentration meditation
medial prefrontal cortex
51
what is the medial prefrontal cortex associated with
focused attention
52
difference in brain areas for mindfulness
decreased limbic system activity
53
what is decreased limbic system activity associated with
relaxation, deep breathing
54
which brain areas remained active after meditating
left anterior insula
55
effect of meditation on interconnectedness
meditation = increase in self reported interconnected feelings
56
how is self report related to what is actually occurring in the brain
they are correlated
57
brain waves
electric activity of millions of neurons in the brain
58
why are brain waves called "waves"
they are cyclical in nature
59
what machines can measure brain waves
EEGs
60
gamma waves
25-100 Hz
61
where do gamma waves move from
starts in thalamus and sweeps from front to back
62
what happens with thalamus damage
gamma waves stop and we go into a coma
63
what problem might gamma waves solve
the binding problem
64
binding problem
how aspects of our experience are unified into one perception
65
neural synchronization
oscillations of neurons fire together repeatedly and then stop
66
what does neural synchrony cause
connectivity between brain areas
67
who studied neural synchronization
Lutz (2004)
68
Lutz study
practice loving kindness and compassion meditation | - use EEG to measure gamma synchrony
69
Lutz results
highest levels of gamma synchrony in meditators
70
nociception
activity of pain receptors
71
3 components of pain
1. pure perception of pain intensity 2. immediate emotional reaction to pain 3. long-term emotional reaction to pain
72
4 things that modify experience of pain
1. situation 2. culture 3. attention 4. belief
73
Kabat-Zinn study on pain
mindfulness based stress reduction program significantly reduces pain
74
longitudinal study on pain
after MBSR pain reduces over time
75
who else studied pain and meditation
Orme-Johnson (2006)
76
what did Orme-Johnson use to study pain
the pain visual analog scale
77
4 possible explanations of reducing pain in Orme-Johnson study
1. reduce anticipatory anxiety 2. reduce physiological causes of pain 3. distraction from pain 4. increase endogenous endorphins
78
results of Orme-Johnson study
both groups rated subjective ratings the same | - meditating groups had less activity in brain areas associated with pain
79
how studied meditation and smoking
Bowen and Marlett (2009)
80
problem with jails
70% of criminals released end up back in jail in 3 years
81
effect of meditation in jails
decrease in anxiety, drug, use, recidivism
82
recidivism
people going back to jail
83
problems with the jail studies
many methodological issues