PURPOSE:This study investigates Australian primary school teachers' attitudes towards stuttering. While international research exists, there is limited data from this population in an Australian context. METHOD:A total of 174 primary school teachers in Victoria, Australia, completed an online version of the Public Opinion Survey of Human Attitudes-Stuttering (POSHA-S). Responses were compared with international and Australian population data from the POSHA-S database. RESULT:Australian teachers demonstrated significantly more favourable attitudes and greater self-awareness about stuttering than both the general Australian population and most international POSHA-S samples. Their mean Overall Stuttering Score was 37 (91st percentile), significantly higher than the general population (p =.004) with a large effect size (d = 0.78). Compared to the Australian public, teachers reported greater comfort, reduced pity and fewer misconceptions, although knowledge gaps persisted. Informal sources of information about stuttering, such as the media and the internet, were commonly cited information channels. Teachers recognised the role of speech-language pathologists in supporting people who stutter. CONCLUSION:The findings highlight the need for targeted professional development for primary school teachers to align positive attitudes with evidence-based knowledge. This study also lays the groundwork for future qualitative research into how teachers support students who stutter.

Stuttering is a common speech disorder that interrupts speech fluency and tends to cluster in families. Typically, stuttering is characterized by speech sounds, words or syllables which may be repeated or prolonged and speech that may be further interrupted by hesitations or 'blocks'. Rare variants in a small number of genes encoding lysosomal pathway proteins have been linked to stuttering. We studied a large four-generation family in which persistent stuttering was inherited in an autosomal dominant manner with disruption of the cortico-basal-ganglia-thalamo-cortical network found on imaging. Exome sequencing of three affected family members revealed the PPID c.808C>T (p.Pro270Ser) variant that segregated with stuttering in the family. We generated a Ppid p.Pro270Ser knock-in mouse model and performed ex vivo imaging to assess for brain changes. Diffusion-weighted MRI in the mouse revealed significant microstructural changes in the left corticospinal tract, as previously implicated in stuttering. Quantitative susceptibility mapping also detected changes in cortico-striatal-thalamo-cortical loop tissue composition, consistent with findings in affected family members. This is the first report to implicate a chaperone protein in the pathogenesis of stuttering. The humanized Ppid murine model recapitulates network findings observed in affected family members.

INTRODUCTION:While research has shown that parents of preschool-aged children who stutter (CWS) may be negatively affected by their child's stuttering, few studies have investigated their mental health. If parents of CWS have poor mental health, this may impact stuttering treatment choices, the conduct of treatment, stuttering treatment outcomes, and the development of stuttering treatments.METHODS:82 parents (74 mothers and 8 fathers) of preschool-aged children who stutter (aged 1-5) were recruited upon application for an assessment for their child. A survey battery extracting quantitative and qualitative information about symptoms of potential depression, anxiety, stress, and psychological distress, as well as the emotional effect of stuttering on parents was administered and the results summarized.RESULTS:Data from standardised measures revealed similar incidence as normative data for the presence of stress, anxiety or depression (1 in 6 parents) and distress (almost 1 in 5 parents). However, more than half of the participants reported experiencing a negative emotional effect due to their child's stuttering and a large proportion also reported that stuttering influenced their communication with their child.CONCLUSIONS:Speech-language pathologists (SLPs) should broaden the scope of their duty of care to include the parents of CWS more fully. Parents should be provided with informational counselling or other support services that will help reduce worry and anxiety related to negative emotions.

PURPOSE This study investigated the complexity of stuttering behavior. It described and classified the complexity of stuttering behavior in relation to age, behavioral treatment outcomes, stuttering severity, anxiety-related mental health, impact of stuttering, and gender. METHOD For this study, a taxonomy was developed-LBDL-C7-which was based on the Lidcombe Behavioral Data Language of stuttering. It was used by five experienced judges to analyze the complexity of stuttering behavior for 84 adults and adolescents before and after speech restructuring treatment. Data were 3,100 stuttering moments, which were analyzed with nominal logistic regression. RESULTS The complexity of stuttering behavior appears not to change as a result of treatment, but it does appear to change with advancing age. Complexity of stuttering behavior was found to be independently associated with clinician stuttering severity scores but not with percentage of syllables stuttered or self-reported stuttering severity. Complexity of stuttering behavior was not associated with gender, anxiety, or impact of stuttering. CONCLUSION Clinical and research applications of these findings are discussed.

Developmental stuttering is a condition of speech dysfluency, characterized by pauses, blocks, prolongations and sound or syllable repetitions. It affects around 1% of the population, with potential detrimental effects on mental health and long-term employment. Accumulating evidence points to a genetic aetiology, yet gene-brain associations remain poorly understood due to a lack of MRI studies in affected families. Here we report the first neuroimaging study of developmental stuttering in a family with autosomal dominant inheritance of persistent stuttering. We studied a four-generation family, 16 family members were included in genotyping analysis. T1-weighted and diffusion-weighted MRI scans were conducted on seven family members (six male; aged 9-63 years) with two age and sex matched controls without stuttering (n = 14). Using Freesurfer, we analysed cortical morphology (cortical thickness, surface area and local gyrification index) and basal ganglia volumes. White matter integrity in key speech and language tracts (i.e. frontal aslant tract and arcuate fasciculus) was also analysed using MRtrix and probabilistic tractography. We identified a significant age by group interaction effect for cortical thickness in the left hemisphere pars opercularis (Broca's area). In affected family members this region failed to follow the typical trajectory of age-related thinning observed in controls. Surface area analysis revealed the middle frontal gyrus region was reduced bilaterally in the family (all cortical morphometry significance levels set at a vertex-wise threshold of P < 0.01, corrected for multiple comparisons). Both the left and right globus pallidus were larger in the family than in the control group (left P = 0.017; right P = 0.037), and a larger right globus pallidus was associated with more severe stuttering (rho = 0.86, P = 0.01). No white matter differences were identified. Genotyping identified novel loci on chromosomes 1 and 4 that map with the stuttering phenotype. Our findings denote disruption within the cortico-basal ganglia-thalamo-cortical network. The lack of typical development of these structures reflects the anatomical basis of the abnormal inhibitory control network between Broca's area and the striatum underpinning stuttering in these individuals. This is the first evidence of a neural phenotype in a family with an autosomal dominantly inherited stuttering.

Purpose: During the 2019 Fourth Croatia Clinical Symposium, speech-language pathologists (SLPs), scholars, and researchers from 29 countries discussed speech-language pathology and psychological practices for the management of early and persistent stuttering. This paper documents what those at the Symposium considered to be the key contemporary clinical issues for early and persistent stuttering. Methods: The authors prepared a written record of the discussion of Symposium topics, taking care to ensure that the content of the Symposium was faithfully reproduced in written form. Results: Seven contemporary issues for our field emerged from the Symposium. Conclusion: Effective early intervention is fundamental to proper health care for the disorder. However, as yet, there is no consensus about the timing of early intervention and how it should be managed. Currently, clinical translation is a barrier to evidence-based practice with early stuttering, and proactive strategies were suggested for junior SLPs. Apprehension emerged among some discussants that treatment of early stuttering may cause anxiety. For persistent stuttering, assessment procedures were recommended, as were strategies for dealing with childhood bullying. There was agreement that SLPs are the ideal professionals to provide basic cognitive

BACKGROUND:Negative reactions experienced by people who stutter often stem from unfounded attitudes and beliefs in the community.PURPOSE:There is a need to better understand current public attitudes towards stuttering in Australia. The purpose of this study was to: (a) explore the attitudes and knowledge of a large sample of the Australian public using the Public Opinion Survey of Human Attitudes-Stuttering [POSHA-S], (b) identify how the reported attitudes towards, and knowledge of, stuttering compare to existing data, and (c) identify differences between groups for variables identified.METHODS:A cross-sectional population study using the POSHA-S was conducted in Melbourne, Australia. Comparisons of the attitudes towards stuttering of this sample were made with data from other worldwide samples on the POSHA-S database. The influence on attitudes to stuttering of variables including age, gender, education level, country of birth, employment status and number of languages spoken was explored.RESULTS:The Overall Stuttering Score (OSS) of the Australian sample was higher than the median score on the POSHA-S database. This suggests that the Australian public holds more positive attitudes than those other countries represented in the database. Being younger, more educated, employed, female, monolingual, born in Australia and not familiar with people who stutter were related to more positive attitudes for this sample. Some negative stereotypes towards stuttering were noted; people who stutter were identified as 'shy and fearful', and 'nervous and excitable'.CONCLUSIONS:While the Australian public has generally positive attitudes towards stuttering, these attitudes still reflect some 'stuttering stereotypes'.

Purpose The purpose of this study was to use psychological measures of pre-schoolers who stutter and their parents to inform causal theory development and influence clinical practices. This was done using data from a substantive clinical cohort of children who received early stuttering treatment. Method The cohort (N=427) comprised parents and their children who were treated with the Lidcombe Program, the Westmead Program, and the Oakville Program. The study incorporated demographic information, stuttering severity, and child and parent psychological measures prior to treatment. Result The cohort revealed nothing unusual about behavioural and emotional functioning, or the temperaments, of pre-school children that would influence treatment, be targeted during treatment, or influence causal theory development. However, a third of parents were experiencing moderate to high life stressors at the time of seeking treatment, and half the parents failed first-stage screening for Anankastic Personality Disorder. Conclusion The present results are consistent with a number of previous reports that showed that the population of pre-schoolers who stutter have no unusual psychological profiles. Hence, these results suggest that the association between mental health and stuttering later in life is a consequence of the disorder rather than being a part of its cause. The finding of the life stress of parents who seek stuttering treatment for pre-school children has potential clinical importance and warrants further investigation. Further psychological research is required about parents of pre-school children who stutter, because half the parents in the cohort failed the screener for Anankastic Personality Disorder. This is of interest because a previous study associated screening failure for another personality disorder (Impulsive Personality Disorder) with treatment dropout for early childhood stuttering.

BACKGROUND:Information is available about what predicts Lidcombe Program treatment time, but nothing is known about what predicts treatment prognosis.AIMS:To investigate the predictors of treatment dropout and treatment outcome for children who were treated for early stuttering with the Lidcombe Program (N = 277).METHODS & PROCEDURES:A total of 32 variables were used as predictors in regression analyses of short- and medium-term Lidcombe Program outcome, and of treatment dropout.OUTCOMES & RESULTS:Regression analyses associated children who have better language skills and easy temperament with better treatment outcome, although only a small portion of the variance of treatment outcome was accounted for by these variables. There was an association between treatment dropout and parental scores on a personality screening tool relating to their impulsivity.CONCLUSIONS & IMPLICATIONS:Variables identified as predictors of Lidcombe Program treatment outcome were statistically significant, but not clinically significant. They did not account for a clinically substantive portion of treatment outcomes. Findings about parental impulsivity and their relationship with intervention drop-out require replication with prospective methods and comprehensive assessment of parent psychological status. This is particularly important because parents are involved in conducting all early interventions. What this paper adds What is already known on the subject Information is available about what predicts Lidcombe Program treatment time, but nothing is known about what predicts Lidcombe Program treatment outcome. What this paper adds to existing knowledge There are predictors of Lidcombe Program treatment outcome that are statistically significant, but none are clinically significant. What are the potential or actual clinical implications of this work? Clinicians can tell parents that nothing has been found that can assist with making prognostic indications about treatment outcome for their children.

Purpose: The purpose of this letter is to respond to Marcotte's (2019) letter to the editor, "The Influence of Treatment on Children's Recovery from Stuttering: Comments on Kefalianos et al. (2017) and Leech et al. (2017)," published by the Journal of Speech, Language, and Hearing Research.

Purpose The purpose of this study was to ascertain if there is an association between stuttering severity and behaviors and the expression of temperament characteristics, including precursors of anxiety. Method We studied temperament characteristics of a prospectively recruited community cohort of children who stutter ( N = 173) at ages 3, 4, and 6 years using the Short Temperament Scale STS (Prior, Sanson, Smart & Oberklaid, 2000). Results Six of 131 statistical tests of association between stuttering severity and behaviors and temperament traits were statistically significant at the 5% level, which was no more than expected by chance alone. Conclusions On the basis of parent responses to the STS, preschoolers who exhibited different levels of stuttering severity and behaviors did not generally express temperament traits differently from one another. Stuttering severity and stuttering behaviors were not associated with the precursors of anxiety. Overall, taking multiple tests into consideration, results show little evidence of association between stuttering severity and temperament up to 4 years of age or between stuttering behaviors and temperament up to 6 years of age.

PurposeFor a community cohort of children confirmed to have stuttered by the age of 4 years, we report (a) the recovery rate from stuttering, (b) predictors of recovery, and (c) comorbidities at the age of 7 years.MethodThis study was nested in the Early Language in Victoria Study. Predictors of stuttering recovery included child, family, and environmental measures and first-degree relative history of stuttering. Comorbidities examined at 7 years included temperament, language, nonverbal cognition, and health-related quality of life.ResultsThe recovery rate by the age of 7 years was 65%. Girls with stronger communication skills at the age of 2 years had higher odds of recovery (adjusted OR = 7.1, 95% CI [1.3, 37.9], p = .02), but similar effects were not evident for boys (adjusted OR = 0.5, 95% CI [0.3, 1.1], p = .10). At the age of 7 years, children who had recovered from stuttering were more likely to have stronger language skills than children whose stuttering persisted (p = .05). No evident differences were identified on other outcomes including nonverbal cognition, temperament, and parent-reported quality of life.ConclusionOverall, findings suggested that there may be associations between language ability and recovery from stuttering. Subsequent research is needed to explore the directionality of this relationship.

PURPOSE:Speech restructuring treatment can effectively reduce stuttering but the resultant speech may sound unnatural. Martin et al. (1984) speech naturalness scale is widely used by clinicians and researchers, yet little is known about whether including normally fluent speech samples alters the judgement of the naturalness of speech samples of people who stutter, and whether attributes of listeners - specifically training and sex - influence ratings.METHODS:In this study 20 untrained listeners (male and female) and 19 speech language pathology students (female only) rated either the naturalness of 21 speech samples from adults who stutter obtained post-treatment, or the same 21 post-treatment samples randomly mixed with samples of 21 samples from normally fluent speakers matched for age and sex. The independent variables were sample composition (addition of fluent controls) and listener training. The dependent variable was listener naturalness rating.RESULTS:A two-factor ANOVA with listener training and sample composition as independent variables and naturalness ratings as the dependent variable was performed. Untrained listeners rated samples as significantly less natural than trained listeners. The addition of control samples did not significantly impact scores assigned to post-treatment samples. A comparison of male and female listeners was completed using the Mann Whitney U Test. A significant group difference was observed with female listeners rating the samples more leniently (more natural) than male listeners.CONCLUSION:Based on this preliminary research, the addition of controls does not appear necessary in evaluating speech naturalness, however the composition of the listener group may affect results.

purpose: To describe the language development in a sample of young children who stutter during the first 12 months after stuttering onset was reported.Methods: Language production was analysed in a sample of 66 children who stuttered (aged 2-4 years). The sample were identified from a pre-existing prospective, community based longitudinal cohort. Data were collected at three time points within the first year after stuttering onset. Stuttering severity was measured, and global indicators of expressive language proficiency (length of utterances and grammatical complexity) were derived from the samples and summarised. Language production abilities of the children who stutter were contrasted with normative data.Results: The majority of children's stuttering was rated as mild in severity, with more than 83% of participants demonstrating very mild or mild stuttering at each of the time points studied. The participants demonstrated developmentally appropriate spoken language skills comparable with available normative data.Conclusion: In the first year following the report of stuttering onset, the language skills of the children who were stuttering progressed in a manner that is consistent with developmental expectations.(C) 2016 Elsevier Inc. All rights reserved.

Purpose: This Phase I trial reports the results of a clinician-free Internet speech restructuring treatment for adults who stutter. The program consists of nine phases with concepts loosely based on the Camperdown Program.Method: Twenty adults who stutter were recruited. They were given unlimited access to the program for 6 months. Primary outcome measures were the percentage of syllables stuttered and self-reported severity ratings.Result: Five participants accessed all phases of the program, while another five accessed more than half the phases. The remaining 10 accessed between one and four phases. Four of five participants who accessed all phases reduced their stuttering frequency by more than 50% and an additional two participants who accessed more than half the phases also achieved similar reductions. These results were confirmed by self-reports of stuttering severity. Stuttering reductions were largely commensurate with the amount of the program accessed.Conclusion: As with other clinician-free programs in related health areas, maintaining adherence to the program's procedures was a significant issue. Nonetheless, this novel approach to treating stuttering has the potential to be a viable alternative for some clients and may help to address the significant access and relapse issues that affect treatment provision for adults who stutter.

Purpose:Webcam treatment is potentially useful for health care in cases of early stuttering in which clients are isolated from specialized treatment services for geographic and other reasons. The purpose of the present trial was to compare outcomes of clinic and webcam deliveries of the Lidcombe Program treatment (Packman et al., 2015) for early stuttering.Method:The design was a parallel, open plan, noninferiority randomized controlled trial of the standard Lidcombe Program treatment and the experimental webcam Lidcombe Program treatment. Participants were 49 children aged 3 years 0 months to 5 years 11 months at the start of treatment. Primary outcomes were the percentage of syllables stuttered at 9 months postrandomization and the number of consultations to complete Stage 1 of the Lidcombe Program.Results:There was insufficient evidence of a posttreatment difference of the percentage of syllables stuttered between the standard and webcam Lidcombe Program treatments. There was insufficient evidence of a difference between the groups for typical stuttering severity measured by parents or the reported clinical relationship with the treating speech-language pathologist.Conclusions:This trial confirmed the viability of the webcam Lidcombe Program intervention. It appears to be as efficacious and economically viable as the standard, clinic Lidcombe Program treatment.

This paper reports a preliminary study which trialled a novel approach for measuring speech output and social participation. The amount of phonation was accumulated via an objective measure called an Ambulatory Phonation Monitor (APM).Purpose: (1) To establish whether adults who stutter will tolerate wearing an APM for an extended period of time (three days), (2) to test whether the APM can accumulate useful data about the amount of phonation adults who stutter produce in the course of a normal day and (3) to examine a possible relationship between stuttering severity and amount of phonation.Method: Three adults who stutter wore an APM for three consecutive days during their waking hours. Each completed a questionnaire regarding the device and kept a speech diary outlining daily speaking activities and self-reported stuttering severity. APM data regarding amount of phonation was collected, analysed and compared with the participants' speech diaries.Results: Each adult tolerated wearing the APM and while they felt comfortable speaking wearing the device, it was somewhat cumbersome. Variations in the amount of speaking across each day and in different speaking situations were evident. For two participants there was a positive correlation between phonation time and severity rating.Conclusions: Preliminary data suggests that the APM can provide valuable information about the amount adults who stutter speak. The APM is sufficiently sensitive to differentiate variations in the amount of phonation during different speaking situations. These favourable preliminary results suggest the value of a larger scale study.Educational Objectives: The reader will be able to: (a) describe the different aspects of stuttering currently routinely measured in clinical practice; (b) discuss the limitations of current measurement procedures; (c) discuss the advantages of speech measures obtained by an Ambulatory Phonation Monitor APM); (d) describe the perspectives of adults who stutter who have worn an APM to measure phonation time. (C) 2015 Elsevier Inc. All rights reserved.

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Purpose: The purpose of this study was to evaluate anxiety and psychological functioning among adolescents seeking speech therapy for stuttering using a structured, diagnostic interview and psychological questionnaires. This study also sought to determine whether any differences in psychological status were evident between younger and older adolescents.Method: Participants were 37 stuttering adolescents seeking stuttering treatment. We administered the Computerized Voice Version of the Diagnostic Interview Schedule for Children, and five psychometric tests. Participants were classified into younger (12-14 years; n = 20) and older adolescents (15-17 years; n = 17).Results: Thirty-eight percent of participants attained at least one diagnosis of a mental disorder, according to the diagnostic criteria of the Diagnostic and Statistical Manual of Mental Disorders, Fourth Edition (DSM-IV; APA, 2000), with the majority of these diagnoses involving anxiety. This figure is double current estimates for general adolescent populations, and is consistent with our finding of moderate and moderate-severe quality of life impairment. Although many of the scores on psychological measures fell within the normal range, older adolescents (15-17 years) reported significantly higher anxiety, depression, reactions to stuttering, and emotional/behavioral problems, than younger adolescents (12-14 years). There was scant evidence that self-reported stuttering severity is correlated with mental health issues. There are good reasons to believe these results are conservative because many participants gave socially desirable responses about their mental health status.Discussion: These results reveal a need for large-scale, statistically powerful assessments of anxiety and other mental disorders among stuttering adolescents with reference to control populations.Educational Objectives: The reader will be able to: (a) explain the clinical importance of assessing for mental health with stuttering adolescents, (b) state the superior method for adolescent mental health assessment and (c) state a major issue with determining the genuineness of stuttering adolescent responses to psychological assessment. (C) 2013 Elsevier Inc. All rights reserved.