CVSA Physiological Basis of Voice Stress Analysis

Question 1

What physiological mechanism is the primary basis for voice stress analysis in CVSA technology?

Accepted Answer

Microtremors in the voice caused by stress-related muscle tension

Answer

Changes in vocal cord thickness under pressure

Answer

Changes in saliva production affecting vocal quality

Answer

Variations in lung capacity under psychological stress

Question 2

The microtremors associated with psychological stress and detected by CVSA technology typically occur at what frequency range?

Accepted Answer

8–12 Hz

Answer

50–100 Hz

Answer

200–400 Hz

Answer

1,000 Hz or higher

Question 3

Which part of the human nervous system is primarily responsible for the stress response that CVSA technology detects?

Accepted Answer

Autonomic nervous system

Answer

Central nervous system

Answer

Peripheral somatic nervous system

Answer

Enteric nervous system

Question 4

How does psychological stress affect the laryngeal muscles in a way that is relevant to CVSA analysis?

Accepted Answer

It induces microtremors through increased involuntary muscle tension

Answer

It causes the larynx to physically move upward in the throat

Answer

It permanently decreases blood flow to the vocal cords

Answer

It causes the vocal cords to lengthen over time

Question 5

The 'fight or flight' response is relevant to CVSA primarily because it:

Accepted Answer

Triggers hormonal changes that alter vocal cord vibration patterns

Answer

Makes subjects more cooperative during interviews

Answer

Causes the subject to speak more rapidly

Answer

Directly controls conscious speech patterns

Question 6

Which vocal quality change is NOT directly associated with the physiological stress response that CVSA measures?

Accepted Answer

Changes in accent or regional dialect

Answer

Changes in fundamental frequency modulation

Answer

Alterations in microtremor amplitude

Answer

Variations in voice frequency patterns

Question 7

The 'inframyogenic' frequency modulations detected by CVSA are generated by:

Accepted Answer

Involuntary muscle tremors within the laryngeal muscles

Answer

Conscious control of breathing patterns

Answer

The resonance of the nasal and sinus cavities

Answer

Deliberate changes in speaking rate