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Psychophysiological Measurements > Lecture 1 - ANS > Flashcards

Lecture 1 - ANS Flashcards

1
Q

change value

A

baseline - value at moment of interest

= reactivity

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2
Q

reactivity

A

baseline - value at moment of interest

= change value

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3
Q

approaches in psychophysiological measurements

A

might be different for two different activities, like heart rate / skin conductivity

usually not invasive

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4
Q

habituation

A

participant gets used to environment

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5
Q

comparability and scale

A

soccer on TV might be more exciting than anything measured in the lab

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6
Q

accelerometer

A

posture and activity

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7
Q

recovery

A

usually almost to baseline

but slightly higher

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8
Q

possible indexes for most stressful events

A

peak heart-rate + self-report

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9
Q

Demasio’s ‘as if’

A

feeling / affects have feedback with emotional response

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10
Q

location of feelings

A

amygdala and hypothalamus

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11
Q

location of execution of ANS

A

pituitary
locus coeruleus & raphe nucleus
VTA

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12
Q

physiological reponses

A

execution of ANS

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13
Q

sympathetic

A

activation

fight or flight

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14
Q

parasympathetic

A

restoration

rest & digest

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15
Q

ECG

A

= EKG
= electrocardiograph / electrokardiograph
recording from the outside
different sited give different information
measures synchronised activity

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16
Q

heart anatomy

A

two atria

two ventricles

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17
Q

pacemaker cells

A

cardiac muscle cells

still run when grown in petri dish

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18
Q

SN

A

= sinus mode

most important pacemaker

19
Q

most important pacemaker

A

SN

= sinus mode

20
Q

AV

A

backup pacemaker

21
Q

backup pacemaker

A

AV

22
Q

AV function

A

causes delay
which makes sure that chambers are empty
makes heart more efficient

23
Q

electrical activity in heart

A 
from pacemaker to atria
which squeeze out blood
goes through Purkinje fibers
to center of heart
then to sides
24
Q

P wave

A

SN
atria squeeze
depolarisation (?)

25
Q

Q wave

A

ventricular polarization

26
Q

R wave

A

biggest wave
the one we measure because it’s the easiest
muscle cells

27
Q

T wave

A

repolarizsation of ventricles

also of atria but gets overshadowed

28
Q

U wave

A

very small
sometimes not even observed
origin unclear

29
Q

QRS complex

A

Q, R and S wave together

30
Q

P wave origin

A

atria

31
Q

R and T wave origin

A

ventricles

32
Q

heart rate components

A

intrinsic heart rate

extrinsic chronotropic effects

33
Q

intrinsic heart rate

A

absence of all other factors

supposedly around 100 bpm

34
Q

extrinsic chronotropic effects

A

SNS and PNS cardiac control

35
Q

heart rate equation

A

three unknown and one known

-> can’t solve it by ECG (i.e. heart rate) alone

36
Q

two disadvantages lab psychological

A

stressors are not “for real”

stressors are insufficiently complex

37
Q

advantage lab psychological

A

standardisation of type, duration and intensity of stressor

38
Q

four disadvantages physiological lab

A

stressors are of low intensity

no systems triggered that are known to become active only above an intensity threshold

stressors are of short duration

only fast heterostatic responses
no slow allostatic counter regulatory responses

39
Q

one advantages physiological lab

+ five examples

A

strict standardisation of factors with physiological confounding effects

like posture, physical activity, time of measurement, pre-testing behavior and environment

40
Q

one disadvantage psychological ambulatory

A

no control over (stress) exposures

41
Q

six advantages psychological ambulatory

A

incremental validity, no reliance on introspection

higher ecological validity

more representative

more applicable, also to other situations and populations

groups that cannot come to the lab can be studies

verification of lab research results

42
Q

four disadvantages physiological ambulatory

A

higher risk fo signal loss

reactivity harder to define

participant nonadherence of instructions

no control over confounders (although they can be assessed with self-report)

43
Q

three advantages physiological ambulatory

A

physiological responses to prolonged stress exposures can be measured e. g. work day vs leisure time

sleep can be measured

higher predictive validity

Psychophysiological Measurements (7 decks)

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