CVSA Physiological Basis of Voice Stress Analysis 3

Question 1

The fundamental frequency (F0) of a human voice is primarily determined by:

Accepted Answer

The rate at which the vocal cords vibrate

Answer

The shape of the mouth and lips during articulation

Answer

The total volume of air stored in the lungs

Answer

The length of the trachea from the lungs to the larynx

Question 2

The sympathetic nervous system's role in CVSA is best described as:

Accepted Answer

Activating the stress response that produces detectable voice changes

Answer

Regulating voluntary and conscious speech production

Answer

Promoting relaxation and reducing voice stress markers

Answer

Controlling deliberate breathing patterns during speech

Question 3

In CVSA theory, the term 'psychological set' refers to:

Accepted Answer

The mental and emotional state a subject brings into the examination

Answer

The calibration settings configured in the CVSA equipment

Answer

The structured list of questions prepared by the examiner

Answer

The physical layout of equipment in the examination room

Question 4

How do the vocal folds generate the sound analyzed by CVSA instruments?

Accepted Answer

By vibrating at frequencies determined by air pressure and muscle tension

Answer

By creating ultrasonic waves that are captured by the microphone

Answer

By producing electrical signals directly read by the CVSA software

Answer

By resonating with measurable brain wave frequencies

Question 5

The phenomenon of 'voice tremor' under stress is physiologically caused by:

Accepted Answer

Oscillations in laryngeal muscle tension triggered by the stress response

Answer

Variations in the subject's breathing rhythm alone

Answer

Deliberate alterations in speaking speed

Answer

Changes in the shape of the oral cavity during stress

Question 6

Why might a highly experienced or habitual liar potentially show reduced CVSA stress markers?

Accepted Answer

They may have reduced physiological stress response due to habituation

Answer

Their autonomic nervous system has been surgically or pharmacologically altered

Answer

They produce ultrasonic frequencies outside the range the instrument can detect

Answer

Their vocal cords develop a different physical structure over time

Question 7

The relationship between respiration and voice stress patterns is important in CVSA because:

Accepted Answer

Breathing patterns directly affect the air pressure driving vocal cord vibration

Answer

Subjects are required to hold their breath during each question

Answer

The CVSA microphone simultaneously measures lung volume changes

Answer

Respiratory rate is the single primary indicator measured by CVSA