Which of the following is categorized as a psychogenic voice disorder?

The correct answer is Functional aphonia, which is categorized as a psychogenic voice disorder. This condition is characterized by a loss of voice or severe difficulty in phonation that does not have a clear organic cause. Instead, it is often linked to psychological stress or emotional factors. Individuals with functional aphonia may exhibit normal vocal fold function when not under stress, indicating that their voice difficulties are not due to physical abnormalities.

In contrast, dysphonia refers to any abnormality in voice quality, which can arise from various organic or functional causes. It does not specifically indicate a psychological origin. Laryngeal web and vocal nodules are both classified as organic voice disorders, as they are caused by anatomical or physiological changes in the larynx. Laryngeal webs are formed by tissue growth that can obstruct the airway, while vocal nodules are callous-like growths on the vocal cords due to overuse or misuse of the voice. Understanding the distinction between psychogenic and organic voice disorders is crucial for proper diagnosis and treatment.