Polygraphy and EOG

Question 1

Polygraphy

Answer 1

the practice of using a polygraph (commonly known as lie detection)

Question 2

Autonomic nervous system

Answer 2

a division of the peripheral nervous system that influences the function of internal organs

Question 3

Sympathetic activation

Answer 3

activation of the sympathetic nervous system. E.g. during GSR.

Question 4

Galvanic skin response

Answer 4

evidence of emotional arousal obtained by attaching electrodes to any part of the skin and recording momentary changes in perspiration and other functions of the autonomic nervous system

Question 5

Saccade

Answer 5

the movement of the eye when it makes a sudden change of fixation, as in reading

Question 6

Principles behind using polygraphs as lie detector

Answer 6

Deceptive answers will produce physiological responses that can be differentiated from those associated with non-deceptive answers

Question 7

Important aspects of setting up the lie detection

Answer 7

Calibration period. An anxious person will have different score level and people will also be stressed because of the situation

Question 8

Biofeedback training

Answer 8

A learning process whereby people learn to exert conscious control over physiological processes normally controlled by the autonomic nervous system. The subject can use the received signal to enhance the desired response. The biofeedback training allows the subjects to be able to regulate certain autonomic processes; control headache, lower blood pressure, lower heart rate and manage responses to stressful situations