This study compared duration characteristics of single-syllable whole-word repetitions and part-word repetitions in the speech of 20 preschool children who stuttered, recorded near the onset of their stuttering, to those of 20 nonstuttering children. The duration of silent intervals between spoken segments within repetitions was found to be…

Conversational speech of five children who stutter was recorded and then portions manipulated to modify interval duration and vowel duration. Results indicated that both interval and vowel durations moderately affected listeners' perception of stuttering. Generally, repetitions with short vowel and interval durations were judged as more…

This study was undertaken to examine the performance of 23 children who stutter (CWS) and 23 children who do not stutter (CWNS) on three metalinguistic tasks. These included two phonological awareness assessment procedures (The Lindamood Auditory Conceptualization Test (LAC) and a Phoneme Reversal Task) and one modified Grammar Judgments Task…

This study investigated how phonetic complexity affects stuttering rate in German and how this changes developmentally. Phonetic difficulty was assessed using Jakielski's index [Motor Organization in the Acquisition of Consonant Clusters, Dissertation/Ph.D. Thesis, University of Texas Austin, 1998] of phonetic complexity (IPC) in which words are…

Background: This paper is intended to contribute to the current debate in relation to persistent stuttering and evidence-based clinical practice. Aims: The paper will describe the authors' intervention framework for persistent stuttering, which is guided by evidence from the fields of stuttering and clinical psychology. It supports the opinion…

Purpose: To complete a systematic review, incorporating trial quality assessment, of published research about pharmacological treatments for stuttering. Goals included the identification of treatment recommendations and research needs based on the available high-quality evidence. Method: Multiple readers reviewed 31 articles published between 1970…

The purpose of the present study was to investigate the role of phonological encoding in the silent speech of persons who stutter (PWS) and persons who do not stutter (PNS). Participants were 10 PWS (M=30.4 years, S.D.=7.8), matched in age, gender, and handedness with 11 PNS (M=30.1 years, S.D.=7.8). Each participant performed five tasks: a…

The present paper integrates the results of experimental studies in which cognitive differences between stuttering and nonstuttering adults were investigated. In a monitoring experiment it was found that persons who stutter encode semantic information more slowly than nonstuttering persons. In dual-task experiments the two groups were compared in…

This study compared the disfluencies of German-speaking preschool children who stutter (CWS, N=24) with those produced by age- and sex-matched comparison children who do not stutter (CWNS, N=24). In accordance with Yairi and Ambrose's [Yairi, E., & Ambrose, N. (1992). A longitudinal study of stuttering in children: A preliminary report.…

A procedure for subtyping individuals who stutter and its relationship to treatment outcome is explored. Twenty-five adult participants of the Comprehensive Stuttering Program (CSP) were classified according to: (1) stuttering severity and (2) severity of negative emotions and cognitions associated with their speech problem. Speech characteristics…

Systematic evaluation of the task demands of changes in utterance length and complexity among stuttering (N=8) and nonstuttering (N=8) three- through six-year-olds revealed that fluency breakdown was significantly correlated with gradual increases in syntactic complexity for both stuttering and nonstuttering children, as was sentence replication…

The study investigated cerebral organization for visual language processing with 14 adult stutterers. Results showed the right hemisphere was superior for analyzing the concrete words while the left hemisphere was responsible for processing the abstract items suggesting some form of linguistic competition between the two hemispheres of this…

The study compared five adult stutterers' and five adult nonstutterers' fluent speech patterns produced during one nonshadowed reading and two speech-shadowing conditions (immediate repetition of a heard message). Among results were that stutterers produced fewer speech production errors than nonstutterers during shadowing conditions. (Author/DB)

A study involving 12 preschool stutterers, 12 nonstutterers and their mothers indicated that mothers of nonstutterers interrupted the disfluent speech of stutterers significantly more often than mothers of stutterers. All mothers interrupted children's disfluent speech significantly more than they interrupted children's fluent speech. All children…

Approximately 47,200 spontaneous utterances of four nonstuttering children were analyzed for the occurrence of developmental disfluency from the time of one word utterances through the emergence of beginning syntax. Variations were found among the children's profiles with systematic changes in disfluency at each succeeding mean length of utterance…