Exam 2 Part 15 Flashcards
T/F: Stroboscopy can be used with both rigid and flexible endoscopy procedures.
True
Why do we use negative practice?
Whenever the patient switches back to the dysphonic voice, they are able to switch back to their normal voice
What type of tool do we use if the patient is not willing to use the scope to measure vocal fold oscillations?
Use EGG (electroglottography)
In EGG, the stronger the current the greater the ______
Amplitude
Pathologies are often caused _________ to phonotrauma
Secondary
Want to look at the spectrum generated at the glottal level by taking off the considerations of the vocal tract changes.
Inverse filtering
Measures at the glottal level
Acoustics
Measures things at the respiratory system level
Aerodynamics
What biomechanical changes alters the voice when there is a growth on the vocal folds?
Mass increases, stiffness increases, pliability of tissue decreases, flexibility of the tissue decreases
What is the difference between a polyp and a nodule?
Polyps are due to hemorrhage, feeds on the hemorrhage, usually unilateral sometimes bilateral. Nodules are bilateral, in superficial lamina propria
Type 2 & 3 you use what type of measurement?
Frequency-based measures (spectral and cepstral)
Type 1 Voice you use what type of measurement?
Perturbation measures (jitter/shimmer)
Even though f0 is hard to identify, it does not rely on this. Compares the amplitude peak.
Cepstral measurements
What types of voice do we use cepstral measurements?
Can be used for type 2 and type 3 voices (aperiodic voice).
Measurement that needs to identify fundamental frequency.
Perturbation measurement (jitter/shimmer)
