9 - Psychophysiological Measurements

Question 1

What are the three ways we can measure emotional responses in the lab?

Answer 1

Evaluative reports, overt actions, and physiological responses

Question 2

Which neurotransmitter does the sympathetic nervous system use at the postganglionic synpapses?

Answer 2

Norepinephrine

Question 3

Which neurotransmitter does the parasympathetic nervous system use at the postganglionic synapses?

Answer 3

Acetylcholine

Question 4

Which system is faster, the sympathetic or the parasympathetic?

Answer 4

Parasympathetic nervous system is faster

Question 5

What is the natural pacemaker of the heart?

Answer 5

SA node

Question 6

What is the electrical gateway to the ventricals in the heart?

Answer 6

AV node

Question 7

When does the SA node fire and which wave represents this in the ECG?

Answer 7

When the atria are full of blood, represented by the P wave

Question 8

When does the AV node fire?

Answer 8

During the QRS complex

Question 9

What is systole and when does it occur in the ECG?

Answer 9

Systole is ventricular contraction and it occurs immediately after the QRS complex, before the ventricular repolarization at the T wave

Question 10

Which node does the parasympathetic nervous system control heart rate through?

Answer 10

SA node

Question 11

Which node does the sympathetic nervous system control heart beat strength through?

Answer 11

VA node

Question 12

What is blood pressure?

Answer 12

The force exerted by the blood against the vessel walls (mmHg)

Question 13

What are baroreceptors?

Answer 13

Sensors in the heart that detect variations in blood pressure and signal to the brain the current state of cardiovascular arousal

Question 14

What are the signals from aortic baroreceptors conveyed to the brain by?

Answer 14

Vagus nerve

Question 15

What are the signals from carotid baroreceptors conveyed by?

Answer 15

Glossopharyngeal nerve

Question 16

What is the most important and rapid short-term regulator of blood pressure and cardiovascular arousal?

Answer 16

Baroreceptors

Question 17

What is the exosomatic method of measuring electrodermal activity?

Answer 17

Applying small electrical current across the skin to measure skin conductance levels

Question 18

What is the endosomatic method of measuring electrodermal activity

Answer 18

record skin potential without applying external electrical current

Question 19

What innervates eccrine sweat glands (palms and fingers)?

Answer 19

Predominantly sympathetic acetylcholine innervation

Question 20

Sadness is associated with smaller or larger pupils?

Answer 20

Snaller

Question 21

What is the corrugator supercilli?

Answer 21

Muscle that draws the eyebrow downwards

Question 22

What is the zygomaticus major?

Answer 22

Muscle that tightens the cheek

Question 23

What is the orbicularis oculi?

Answer 23

Muscle that closes the eyelid