Lecture 1

Question 1

what is called the holy grail of psychophysiology?

Answer 1

a one to one mapping between psychological and physiological events

Question 2

what are 3 aspects of emotion?

Answer 2

emotions:

1. feelings (affect)
2. behavioural response
3. physiological response (autonomic nervous system)

Question 3

explain the feedback loop in the theory from james & lange

Answer 3

> event evokes physiological response by being interpreted by cortex

> feedback from body to cortex “e.g. heart rate rising”

> interpretation of cortex of this feedback “something must have happened”

Question 4

what are 4 psychophysiological recordings

Answer 4

1. skin conductance level (SCL)
2. electrocardiogram (ECG)
3. impedance cardiogram (ICG)
4. blood pressure

Question 5

what is the all-time favorite psychophysiological recording?

why?

Answer 5

all time favorite: heart rate

> increase in heart rate on of the most rebust response

> very easily measured with minimal costs

> basic signal is ECG

Question 6

what is the difference between heart rate and heart period?

formula?

Answer 6

heart period: peak to peak interval (in ms)

heart rate: peak per minute (in bpm)

HR = 60000/HP

HP = 60000/HR

Question 7

heart rate is function of what other physiological mechanisms?

Answer 7

hearte rate depends on

1. intrinsic heart rate
2. extrinsic chronotopic effects (a mix of)

> sympathetic cardicac control

> parasympathetic cardiac control

Question 8

what are 4 non dual innervated organs?

Answer 8

non dual innervated organs

1. sweat glands
2. blood vessels
3. adrenal medulla
4. heart muscle

Question 9

why use skin conductance and not skin resistance?

Answer 9

skin conductance in linearly related to the number of resistors

> linear relation between conductance and sweat secretion

>>> resistance NOT linearly related

Question 10

skin conductance response

tonic level?

latency?

amplitude?

Answer 10

SCR

tonic level: about 4.0 microS

latency: about 2000 ms
amplitude: about 2 microS

Question 11

what is the difference between amplitude and magnitude

Answer 11

amplitude: mean value across only trials with a non-zero response
magnitude: mean value over across all trials

Question 12

which stimuli highest/lowest skin conductance response?

Answer 12

negative stimuli: hightest SCR

positive stimuli: lower SCR

neutral stimuli: lowest SCR

Question 13

what happens when testing skin conductance on a patient with ventromedial lesions

Answer 13

chances are that he will show almost no SCR