What disorder is characterized by a tremorous voice?

The disorder characterized by a tremorous voice is indeed spasmodic dysphonia. This condition is a type of voice disorder that affects the muscles of the larynx, causing involuntary spasms which result in interruptions of voice production. The spasms can cause the voice to have a strained, strangled quality, or lead to a characteristic tremor in the voice that can be quite distinctive.

In spasmodic dysphonia, the muscles that control the vocal cords do not function properly, and this results in uneven voice production. The presence of voice tremor is particularly prominent in this disorder, which can make it challenging for individuals to communicate effectively.

Understanding the nature of spasmodic dysphonia helps highlight why it is diagnosed specifically based on the unique tremorous quality of the voice, setting it apart from other voice disorders where such a trait may not be present.