Kenneth J Logan

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The purpose of this study was to assess clause, syllable, and response latency characteristics of conversational utterances produced by children who stutter. Subjects were 14 boys who stutter (M age = 52.07 months; SD = 9.02 months) and 14 boys who do not stutter (M age = 51.93 months; SD = 8.55 months). Selected aspects of speech fluency, clause and(More)
UNLABELLED Past research has shown that adults who stutter tend to be slower than adults who do not stutter at initiating various speech-like movements, nonsense syllables, words, short phrases, and simple sentences. The present study sought to extend this research by examining the effect that syntactic structure has upon stutterers' and nonstutterers'(More)
Selected characteristics of disfluent conversational utterances with and without disfluency clusters were examined in 14 children who stutter (CWS) and 14 children who do not stutter (CWNS). For CWS, utterances with disfluency clusters contained significantly more syllables and clausal constituents than disfluent utterances without clusters, which, in turn,(More)
UNLABELLED Diadochokinetic (DDK) rates are commonly assessed in children with speech-language disorders, even though the implications of fast or slow DDK rates are not clear. This study explored the possibility that the accuracy and fluency of DDK productions may provide a meaningful supplement to traditional measures of DDK rate. Participants were 15 boys,(More)
PURPOSE To compare articulation and speech rates of school-aged children who do and do not stutter across sentence priming, structured conversation, and narration tasks and to determine factors that predict children's speech and articulation rates. METHOD 34 children who stutter (CWS) and 34 age- and gender-matched children who do not stutter (CWNS) were(More)
PURPOSE Adults who stutter speak more fluently during choral speech contexts than they do during solo speech contexts. The underlying mechanisms for this effect remain unclear, however. In this study, we examined the extent to which the choral speech effect depended on presentation of intact temporal speech cues. We also examined whether speakers who(More)
The present study examined language and fluency characteristics of single-utterance (SU) and multiple-utterance (MU) conversational turns produced by 15 preschoolers who stutter and 15 age- and sex-matched preschoolers who do not stutter. Participants conversed with a parent in a play seating. Each interaction was videotaped and the participants' resultant(More)
PURPOSE This study was designed to (a) compare the speech fluency of school-age children who do and do not stutter (CWS and CWNS, respectively) within 2 standard diagnostic speaking contexts (conversation and narration) while also controlling for speaking topic, and (b) examine the extent to which children's performance on such discourse tasks is affected(More)
School-aged children who stutter often present concomitant impairments in articulation and language that can complicate treatment. In this article, a framework is offered for designing intervention programs for such children. It is stressed that clinicians must first identify clinical priorities by determining the severity of the impairments, their impact(More)
UNLABELLED Factors affecting perceptions of occupational suitability were examined for speakers who stutter and speakers who do not stutter. In Experiment 1, 58 adults who do not stutter heard one of two audio recordings (less severe stuttering, more severe stuttering) of a speaker who stuttered. Participants rated the speaker's communicative functioning,(More)