Abductor spasmodic dysphonia (ABSD) is a type of spasmodic dysphonia. It involves hyperabduction of the laryngeal muscles during speech production, which results in the opening of the vocal cords. ABSD is the less common form of spasmodic dysphonia. It is characterised by breathiness with aphonic whispered speech segments.

For more information, see Spasmodic Dysphonia.

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