Acquired stuttering

Abstract

Acquired stuttering secondary to brain damage in adults has received little attention relative to that given developmental stuttering. The present study examined the speech characteristics, neuropsychologic deficits, and neuroanatomic correlates of 10 patients with acquired stuttering. The speech characteristics which differentiate acquired stuttering include: absence of adaptation effect; occurrence of stuttering on any syllable with in a word, and stuttering on both grammatical and substantive words. The neurobehavioral deficits correlated with acquired stuttering include: impaired ability to draw or copy three-dimensional figures or reproduce block designs, and difficulty in reproducing and sustaining sequential motor tasks, melodies, and rhythmic tapping patterns. Two varieties of this disorder were identified. While patients affected with both varieties have evidence of multifocal hemispheric damage, transient acquired stuttering was associated with unilateral (left) foci, and persistent acquired stuttering with bilateral pathology….

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