Purpose: Contemporary motor theories indicate that well-practiced movements are best performed automatically, without conscious attention or monitoring. We applied this perspective to speech production in school-age children and examined how dual-task conditions that engaged sustained attention affected speech fluency, speech rate, and language…

Children's frequency of stuttering can be affected by utterance length, syntactic complexity, and lexical content of language. Using a unique small-scale within-subjects design, this study explored whether language samples that contain more stuttering have (a) longer, (b) syntactically more complex, and (c) lexically more diverse utterances than…

Stuttering patterns may differ when comparing two languages. In bilinguals, specific patterns of stuttering in each one of the languages may potentially be found. This study reports on the case of a 27-year-old Spanish/English simultaneous bilingual whose dominant language is English. Speech and language testing was performed in both languages…

This study examined word-finding ability, measured by accuracy and latency of response, in a group of eight preschool stutterers (mean age 4.2 years) and two groups of eight nonstutterers (mean age 4.4 years) matched according to age, gender, race, and receptive vocabulary. Results indicated that, as a group, preschool children who stutter and…

This study of 20 stuttering and 20 nonstuttering preschool children found that stuttering children scored lower on 7 out of 8 language measures, with no significant intergroup differences on articulation proficiency or fluency. There were few significant correlations between measures of stuttering rate, speaking rate, and language performance…

The Lidcombe Program is an operant treatment for early stuttering. Outcomes indicate that the program is effective; however, the underlying mechanisms leading to a successful reduction of stuttering remain unknown. The purpose of this study was to determine whether fluency achieved with the Lidcombe Program was accompanied by concomitant reduction…