Vocal tremors and spasms, also called “spasmodic dysphonia”, is a neurological disorder that affects the voice muscles. This can be in the larynx or voice box.
How Vocal Tremors and Spasms Work
When we speak, the air is pushed from the lungs through the vocal folds (vocal cords). This is done with enough pressure to get them to vibrate, which produces our voice. For those with spasmodic dysphonia, these muscles will move involuntarily without warning, making it challenging for the vocal cords to vibrate.
This can cause speech to have unwanted interruptions and make holding a conversation difficult. The number of spasms and tremors a person experiences will vary, as does the severity. In some, they could be small and only cause minor interruptions, but for others, it can make speaking very difficult.