内收肌痉挛性发声困难是在真假声带高度内收和喉部上提的瞬间所产生的一种声音失调,这种失调多始于中年,女性多于男性。开始症状轻,随病情进展逐渐恶化,有证据说明喉痉挛是痉挛性发声困难的原因,这可由急性或慢性情绪紧张 Adverse spasm phlegmatic adduction is true and false vocal cord retraction and larynx at the height of an instant produced by a sound disorder, this disorder mostly in middle age, more women than men. Start with mild symptoms, with the progress of the disease gradually deteriorated, there is evidence that laryngospasm is the cause of spasmodic dysphonia, which can be acute or chronic emotional stress