What is ventricular phonation?
Ventricular phonation happens when the ventricular folds, also known as the false vocal folds, compress and squeeze over the true vocal folds. Ventricular folds aren't meant to vibrate, and they aren't able to vibrate very fast or strong enough to make a loud sound.
In many cases, false vocal fold compression occurs because the true vocal folds are significantly stiff and cannot achieve good vibration patterns. In these cases the false folds act as an appropriate secondary choice for voicing. In the most extreme cases, the ventricular folds may actually vibrate themselves and be the sources of phonation rather than the true vocal folds.
What are the symptoms of ventricular phonation?
The voice quality of ventricular phonation is typically a moderate to severe dysphonia characterized by low pitch, roughness, and strain.
How is ventricular phonation treated?
When true vocal fold vibration is possible, voice therapy can be beneficial to decrease excess compression of the false folds and improve voice quality.