Which type of spastic dysphonia occurs due to too little compression when the vocal folds are approximated?

The type of spastic dysphonia characterized by too little compression when the vocal folds are approximated is abductor dysphonia. This condition occurs when there is insufficient adduction (closing) of the vocal folds, leading to a breathy voice quality. In this case, the voice may sound weak or breathy, as the vocal folds do not come together firmly enough to create adequate closure needed for normal phonation.

Understanding the mechanics of vocal fold function is essential. In abductor dysphonia, the inability of the vocal folds to meet adequately results in air escaping during voicing. This contrasts with adductor dysphonia, where there is too much tension and closure, leading to a strained or tight voice. Thus, the answer reflects the impact of vocal fold approximation on voice quality, highlighting the importance of proper closure in healthy vocal function.