Nonorganic & functional voice disorders

Nonorganic

Overview:
Nonorganic voice disorders arise not from abnormality of the mechanism itself but instead from abnormal use of the mechanism, most often for conscious or subconscious secondary gain.

Functional

Overview:
Functional voice disorders arise not from abnormality of the mechanism itself but instead from abnormal use of the mechanism, affected by personality or deficit of vocal skill, without discernible secondary gain.