The purpose of the present investigation was to assess longitudinal word-and sentence-level measures of stuttering in young children. Participants included 12 stuttering and non-stuttering children between 36 and 71 months of age at an initial who exhibited a range of stuttering rates. Parent-child spontaneous speech samples were obtained over a period of two years at six-month intervals. Each speech sample was transcribed, and both stuttering-like disfluencies (SLDs) and other disfluencies (ODs) were coded. Word and sentence-level measures of SLDs were used to assess linguistic characteristics of stuttering. Results of the word-level analysis indicated that stuttering was most likely to occur at the sentence-initial position, but that a tendency to stutter on function words was present only at the sentence-initial position. Results of the sentence-level analyses indicated that sentences containing ODs and those containing SLDs were both significantly longer and more complex than fluent sentences, but did not differ from each other. Word-and sentence-level measures also did not change across visits. Results were taken to suggest that both SLDs and ODs originate during the same stage of sentence planning.
The purpose of this study was to examine the relationship between articulation rate, frequency and duration of disfluencies of different types, and temperament in preschool children who stutter (CWS). In spontaneous speech samples from 19 children CWS (mean age = 3:9; years: months), we measured articulation rate, the frequency and duration of (a) sound prolongations; (b) soundsyllable repetitions; (c) single syllable whole word repetitions; and (d) clusters. Temperament was assessed with the Children's Behavior Questionnaire (Rothbart et al., 2001). There was a significant negative correlation between articulation rate and average duration of sound prolongations (p<0.01), and between articulation rate and frequency of stuttering-like disfluencies (SLDs) (p<0.05). No other relationships proved statistically significant. Results do not support models of stuttering development that implicate particular characteristics of temperament as proximal contributors to stuttering; however, this is likely due to the fact that current methods, including the ones used in the present study, do not allow for the identification of a functional relationship between temperament and speech production. Findings do indicate that for some CWS, relatively longer sound prolongations co-occur with relatively slower speech rate, which suggests that sound prolongations, across a range of durations, may represent a distinct type of SLD, not just in their obvious perceptual characteristics, but in their potential influence on overall speech production at multiple levels.
Parents of children who stutter are often advised to reduce the number of questions they ask their children. Implicit in this advice is the assumption that children who stutter will be more disfluent when answering questions. This study assessed parent-child conversational speech for 8 parent-child pairs to determine the relative amounts of disfluency in the child’s responses to questions versus making assertions. Length and complexity of the children’s utterances and the frequency of the parents’ requests by level of demand were also evaluated. Results suggested that the responses made by the children to their parents’ requests were significantly less likely to contain disfluencies than were their assertions. Also, longer and more complex utterances were more likely to contain disfluencies, regardless of their designation as assertions or responses. Parents were shown to favor request types of lower levels of demand in conversations. Requests posed with greater levels of demand were somewhat more likely to yield disfluent responses than were those at a lower demand level.
The purpose of this study was to measure the duration of sound prolongations and sound/syllable repetitions (stutterings) in the conversational speech of school-age children who stutter. The relationships between duration and (a) frequency and type of speech disfluency, (b) number and rate of repeated units per instance of sound/syllable repetition, (c) overall speech rate, and (d) articulatory rate were also examined. Results indicated that for the children in this study the average duration of stuttering was approximately three-quarters of a second, and was not significantly correlated with age, length of post-onset interval, or frequency of speech disfluency. In addition, findings can be taken to suggest that part of the clinical significance of stuttering duration for children who stutter might lie in its relationship to the amount of sound prolongations these children produce, as well as their articulatory rate during fluent speech.
Stuttering was associated with reduced earnings and other gender-specific disadvantages in the labor market. Preliminary evidence indicates that discrimination may have contributed to the earnings gap associated with stuttering, particularly for females.
Purpose Palin Parent–Child Interaction therapy (Kelman & Nicholas, 2008) is an evidence-based intervention for young children who stutter. The evidence consists of multiple single-subject replicated studies, and this demonstrates that the intervention is effective. The aim of this study was to enhance the evidence base by exploring the effectiveness of the therapy with a large cohort of children who stutter. Method Children and parents completed a range of assessments at 4 time points: start of therapy and then 3, 6, and 12 months later. The following variables were included: stuttering frequency, child's communication attitude, parents' perception of the impact of the stuttering on the child, the severity of stuttering and its impact on the parents, and their knowledge of stuttering and confidence in managing it. Hierarchical multiple regression analyses were conducted to explore whether the variables are predictive for the outcome “parent knowledge and confidence.” In addition, we sought a preliminary view of factors associated with outcome level by separating children into 2 groups according to response to treatment (more successful and less successful). Results The results demonstrated a significant improvement in all variables, and this improvement was maintained for 1 year posttreatment. Measures collected 3 months after the start of therapy showed significant improvement in child attitude to communication, parents' knowledge and confidence in how to manage stuttering, and mothers' ratings of stuttering severity and impact the child's stuttering has on the mothers. By 6 months after therapy onset, there was a significant reduction in stuttering frequency and fathers' perception of severity and their worry about it. Furthermore, these improvements were maintained 1 year posttherapy. Several variables predicted parents' knowledge and confidence 6 months after the start of therapy. Finally, those who made greater improvements had mothers who were more negative in their ratings of severity and worry, and had less knowledge and confidence at the start of therapy. There were no differences between the groups on a range of other variables. Conclusions The results demonstrate that, over a year, children who attend a course of Palin Parent–Child Interaction show reduced stuttering frequency and a more positive attitude to speech. In addition, parents observe these improvements in the child, feel more confident in managing the stuttering, and are less worried about it. The different times at which specific variables significantly improved provides insight to a process of change over time. Results suggest that parents' ability to notice positive change in fluency and the impact that these observations have on both the child and the family are linked to their confidence in how to support the child. The preliminary findings with regard to response to treatment suggest that children can benefit from this program even with factors that might be predicted to reduce therapy success.
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