The relation between long latency cortical auditory evoked potentials and stuttering severity in stuttering school-age children.

BACKGROUND: Disturbances in auditory processing and feedback have been suggested to play a role in the pathogenesis of developmental stuttering. Long latency cortical auditory evoked potentials in response to non-linguistic and linguistic stimuli can be used to investigate these disturbances. There were differences between developmental stuttering patients. However, there is no solid evidence of these differences to date. OBJECTIVE: This study aims to determine whether there is a statistically significant difference in component P1-N1-P2 of long latency cortical auditory evoked potentials between stuttering school-aged children and non-stuttering children. In addition, the study aims to investigate the relationship between these potentials and objective quantitative measures of stuttering. METHOD: The study included two groups, patients and controls, consisting of 40 subjects aged 6-12 years. For the cases group, the severity of stuttering symptoms and P1-N1-P2 responses to a non-linguistic stimulus were evaluated. In addition, the P1-N1-P2 responses of the matched control group were evaluated. RESULTS: The P1-N1 responses were similar in both study groups, while P2 response was shorter in the patient group, but the difference was not statistically significant compared to the control group. N1 latency has the only statistically significant correlation with the percentage of repetitions, prolongation, and blocks. The female cases had a decreased, not statistically significant, latency than the male cases group. CONCLUSION: In contrast to the previous finding, the study revealed a non-statistically significant different P1-N1, a non-statistically significant reduced P2 response to a non-linguistic stimulus, in CWS, in as evidence for basic auditory processing. The study also revealed a significant correlation between N1 latency and proportion of the repetition symptoms.

Psychosocial features of stuttering for school-age children: A systematic review.

BACKGROUND: Contemporary clinical and empirical perspectives indicate that management of the psychosocial features of stuttering is fundamental for effective treatment. Interventions that improve psychosocial outcomes for school-age children who stutter are, therefore, needed. AIMS: This systematic review identifies what psychosocial outcomes have been explored in existing school-age clinical research, the measures used and the potential treatment effects. This will provide guidance for developing interventions that reflect contemporary perspectives of stuttering management. METHODS & PROCEDURES: A total of 14 databases and three conference proceedings were searched for clinical reports of psychosocial outcomes of children aged 6-12 years. The review did not include pharmacological interventions. Psychosocial measures and outcomes were analysed in each study based on data recorded pre-treatment, immediately post-treatment and for any follow-up assessments. MAIN CONTRIBUTIONS: Of the 4051 studies identified from the databases, a total of 22 studies met criteria for inclusion in the review. From these 22 studies, the review identified four prominent psychosocial domains that have been explored in school-age clinical research to date: Impact of stuttering, communication attitude, anxiety and speech satisfaction. These domains vary in measurement and effect sizes. Two behavioural treatments were associated with anxiety reduction, even though they did not contain anxiolytic procedures. No evidence of potential treatment effects emerged for communication attitudes. Quality of life-an important psychosocial domain pertinent to health economics-did not feature in school-age clinical reports. CONCLUSIONS & IMPLICATIONS: The psychosocial features of stuttering need to be managed during the school years. Three psychosocial domains-impact of stuttering, anxiety and speech satisfaction-show evidence of potential treatment effects. This review provides direction for future clinical research so that speech-language pathologists can effectively and holistically manage school-age children who stutter. WHAT THIS PAPER ADDS: What is already known on the subject Elevated levels of anxiety are apparent for children and adolescents who stutter. Therefore, the need to assess and manage psychosocial features of stuttering are expertly regarded as clinical priorities. Clinical trials of such psychosocial features of stuttering for children aged 6-12 years are not well advanced and, therefore, do not reflect current best practice management of this disorder. What this study adds to existing knowledge This systematic review identifies four different psychosocial domains measured and reported in the literature for school-age stuttering management. For three psychosocial domains, some evidence of potential treatment effects emerged with participant numbers greater than 10: Impact of stuttering, anxiety and speech satisfaction. Though treatment effect sizes varied, there is a suggestion that cognitive behaviour therapy can improve anxiety of school-age children who stutter. There is also suggestion that two other behavioural treatments can improve anxiety of school-age children who stutter. What are the potential or actual clinical implications of this work? Given the essential need for school-age children who stutter to receive management of any speech-related anxiety they may experience, it would be productive to discover in future clinical research what interventions could contribute to that goal-behavioural or psychosocial, or both. This review reveals that cognitive behaviour therapy, and other behavioural treatments, are associated with anxiety reductions. Such approaches should be considered for future clinical trial research to help advance the evidence base for managing school-age stuttering.

Accepting Things as They Are: Dispositional Mindfulness, Decentering, Self-Compassion, and the Impact of Stuttering on Adults Who Stutter.

PURPOSE: Mindfulness is defined as intentional, present-moment, nonjudgmental awareness. Previous studies have proposed that mindfulness practice may benefit people who stutter. This study aimed to test the relationship between levels of dispositional mindfulness in people who stutter and the impact of stuttering and whether self-compassion and the metacognitive ability of shifting to an objective perspective (decentering) mediate this relationship. It is hypothesized that greater dispositional mindfulness is associated with attenuated negative impact of stuttering on a person's life through a higher capability to shift into an objective and compassionate perspective. METHOD: A total of 150 Israeli adults who stutter completed a full online survey in Hebrew to assess their levels of dispositional mindfulness, self-compassion, decentering capability, and impact of stuttering on their lives. The relationships between constructs were assessed using Pearson's correlation and mediation analysis. RESULTS: The adverse impact of stuttering was negatively and moderately associated with dispositional mindfulness, such that individuals with greater self-reported dispositional mindfulness reported fewer reactions to stuttering, difficulty in communication, and higher quality of life. This relationship was fully and sequentially mediated via decentering and self-compassion, which were also negatively and moderately associated with the impact of stuttering. CONCLUSIONS: People who stutter with greater dispositional mindfulness have an increased ability to view their experiences in a more objective and compassionate manner, which is associated with an attenuated impact of stuttering on their lives. As these capabilities can be cultivated through practice, this study proposes mindfulness practice as an additional beneficial tool for people who stutter.

Lexipontix Program: Facilitating Change toward "Best Hopes" of the School-Age Child Who Stutters and the Family.

Lexipontix is a structured therapy program for school-age children who stutter. It is based on theoretical principles and clinical practices of cognitive behavioral therapy, parent-child interaction therapy, solution-focused brief therapy, fluency shaping, and stuttering modification. A case example of a school-age child who stutters and his family who participated in the Lexipontix program is illustrated to highlight the theoretical principles, structure, content, and clinical tools of the assessment and therapy process of the program. The Lexipontix program addresses the stuttering experience of the child and family in a holistic way. The child and family are assisted in facilitating changes in all components of the International Classification of Functioning, Disability, and Health model (i.e., body function, personal factors, activity and participation, environmental factors), which help them move toward their "best hopes" (i.e., personally meaningful change) from therapy. The role of the clinician in facilitating change is also considered. Therapy outcomes for the specific case example are presented and discussed in relation to data from a retrospective chart review. The mechanisms underlying the effectiveness of the program are explored and discussed.

Auriculoterapia y tratamiento habitual en niños con tartamudez en Municipio Matanzas. Año 2017 / Auriculotherapy and habitual treatment in children with stuttering in the municipality of Matanzas. 2017

RESUMEN Introducción: se realizó un estudio experimental, longitudinal, prospectivo sobre el tratamiento de los niños con tartamudez con el tratamiento habitual y la adición de auriculoterapia en el Centro Auditivo Provincial en Matanzas entre enero y diciembre del 2017. Objetivo: comparar la evolución clínica de los pacientes con el tratamiento habitual y con la adición de auriculoterapia. Materiales y métodos: el universo del estudio fue de 14 pacientes con tartamudez. Según la llegada de los pacientes a consulta los mismos fueron ubicados alternativamente en dos grupos, uno control que se trató con tratamiento habitual y otro experimental, donde se aplicó el tratamiento habitual más la auriculoterapia. Fue elaborada la historia clínica con una evaluación logofoniátrica antes y después del tratamiento. Resultados: el 64,3% de los pacientes correspondió al grupo etáreo de 6-9 años, predominó el sexo masculino con 57,1 % y raza blanca con 64,3%. Los síntomas y signos más frecuente antes del tratamiento fueron la conciencia de sus dificultades en el 100 % de los pacientes y la ansiedad en 92,8%. Después del tratamiento en el grupo experimental hubo mayor disminución de la ansiedad con 28,6% y el 71,4% de este grupo consideró su evolución satisfactoria. Conclusión: en ambos grupos de estudio predominó la edad entre 6 y 9 años, el sexo masculino, la raza blanca y los síntomas y signos más frecuentes fueron: la conciencia de sus dificultades y la ansiedad. En pacientes del grupo experimental la evolución fue más satisfactoria y hubo una mayor reducción de la ansiedad (AU).

SUMMARY Introduction: a prospective, longitudinal experimental study on the treatment of children with stuttering using the habitual treatment and the addition of Auriculotherapy in the Provincial Auditory Center in Matanzas, from January to December 2017. Objective: to compare the clinical evolution of the patients with the habitual treatment and with the addition of auriculotherapy. Materials and methods: the universe of study was 14 patients with stuttering. According to the arrival of the patients to the consultation they were alternatively located in two groups, a control one treated with the customary treatment, and an experimental one treated with the usual treatment plus auriculotherapy. The clinical records were elaborated with a logo-phoniatric assessment before and after treatment. Results: 64.3 % of patients were in the 6-9 years-old age group; male sex and white race predominated, with 57.1 % and 64.3 % respectively. The most frequent symptoms and signs before treatment were the consciousness of their difficulties in 100 % of patients, and anxiety in 92.8 % of them. After treatment, there it was a higher diminution of anxiety for 28.6 % in the experimental group, and 71.4 % of them considered satisfactory their evolution. Conclusion: age between 6 and 9 years, male sex and white race predominated in both groups; the most frequent symptoms and signs were the consciousness of their difficulties and anxiety. In the experimental group the evolution was satisfactory and the reduction of anxiety was higher (AU).

A cluster randomised trial of a classroom communication resource program to change peer attitudes towards children who stutter among grade 7 students.

BACKGROUND: Classroom-based stuttering intervention addressing negative peer attitudes, perceptions, teasing and bullying of children who stutter (CWS) is required as part of holistic stuttering management because of its occurrence in primary school. This study was conducted in 2017, in 10 primary schools in the Western Cape, South Africa within lower (second and third) and higher (fourth and fifth) quintiles. OBJECTIVES: The primary objective of this study was to determine treatment effect at six months after intervention of grade 7 participants (Classroom Communication Resource [CCR] intervention versus no CCR) using global Stuttering Resource Outcomes Measure (SROM) scores in school clusters. The secondary objective was to determine grade 7 participant treatment effect on the SROM subscales including Positive Social Distance (PSD), Social Pressure (SP) and Verbal Interaction (VI). The subgroup objective was to determine any difference in the primary outcome between schools between and across quintile clusters (lower and higher). METHODS: Once schools were stratified into lower and higher quintile (which are defined according to geographical location, fee per school and resources) subgroup clusters, schools were assigned randomly to control and intervention groups consisting of grade 7 participants who were typically aged ≥ 11 years. Teachers received 1 h of training before administering the single-dose CCR intervention over a 60-90-min session. The CCR intervention included a social story, role-play and discussion. All participants viewed a video of a CWS and stuttering was defined at baseline. The SROM measured peer attitudes at six months after intervention. Randomisation was stratified by quintile group using a 1:1 allocation ratio. Full blinding was not possible; however, the outcome assessor was partially blinded and the analyst was also blinded. Generalised estimating equations (GEE) was used assuming an exchangeable correlation structure to analyse the data adopting an intention-to-treat principle. Multiple imputation was used to handle missing data. Criterion for statistical significance was set at alpha = 0.05. RESULTS: Ten schools were randomly allocated to control (k = 5) and intervention groups (k = 5), with n = 223 participants allocated to intervention and n = 231 to control groups. A total of 454 participants completed the SROMs in control (n = 231) and intervention (n = 223) groups and were analysed at baseline and six months after intervention. There was no statistically significant difference on the global SROM score (mean difference - 0.11; 95% confidence interval [CI] - 1.56-1.34; p = 0.88). There were also no significant differences on SROM subscales: PSD (mean difference 1.04; 95% CI - 1.02-311; p = 0.32), SP (mean difference - 0.45; 95% CI - 1.22-0.26; p = 0.21) and VI (mean difference 0.05; 95% CI - 1.01-1.11; p = 0.93). Additionally, there was no significant subgroup effect on the global SROM score (lower versus higher quintile subgroups) (interaction p value = 0.52). No harms were noted or reported. CONCLUSION: No statistically significant differences were noted. It is possible that the time frame was too short to note changes in peer attitudes and that further study is required to confirm the findings of this study. TRIAL REGISTRATION: Clinicaltrials.gov, NCT03111524 . Registered on 9 March 2017.

The Role of Attention in Therapy for Children and Adolescents Who Stutter: Cognitive Behavioral Therapy and Mindfulness-Based Interventions.

Method: This clinical discussion paper will explore two aspects of attention in relation to young people who stutter and their parents: (a) what we attend to as human beings and (b) how we attend. It will draw on research and clinical practice informed by CBT and MBIs. Specifically, information-processing theory in CBT explains psychological well-being partly in terms of what individuals focus their attention on, whereas MBIs focus on the relationship between how individuals attend to their internal experiences and their psychological well-being. Conclusions: Although a nascent field, MBIs may be useful as a part of therapy for children and adolescents who stutter. The concepts highlighted by MBIs may also help to resolve some clinical issues.

The Most Important Therapy Outcomes for School-Aged Children Who Stutter: An Exploratory Study.

Purpose: The aim of this article was to identify what school-aged children who stutter consider to be the most important outcomes from therapy. Method: A Delphi approach was employed for the study. Eighteen participants aged 9-13 years completed a survey, generating 90 statements that would constitute successful therapy outcomes. After categorization and reduction, 79 statements were sent to participants in a second survey to seek consensus on their importance. Fifteen participants aged 8-14 years completed this second survey. Statements with the highest median ratings and smallest standard deviations were retained. Results: Twenty-one statements were retained after analysis. These reflected hopes for affective and behavioral change in the young person and in other people after therapy. Important outcomes included, but are not limited to, increased fluency, greater independence, increased confidence at school, others knowing how to support the individual, and communication situations feeling easier. Conclusions: Participants identified a range of outcomes that were important to achieve as a result of speech and language therapy. The findings suggest a need for a more holistic view of what is meant by successful therapy, incorporating improvements in the ability to communicate and participate in daily situations. The findings suggest that an integrated or holistic approach to intervention would be required to achieve these goals and should include significant others from the child's environment. The important statements identified in this study could be used to inform the content of therapy and to evaluate change over time. Supplemental Material: https://doi.org/10.23641/asha.7144205.

Abnormal auditory synchronization in stuttering: A magnetoencephalographic study.

In a previous magnetoencephalographic study, we showed both functional and structural reorganization of the right auditory cortex and impaired left auditory cortex function in people who stutter (PWS). In the present work, we reevaluated the same dataset to further investigate how the right and left auditory cortices interact to compensate for stuttering. We evaluated bilateral N100m latencies as well as indices of local and inter-hemispheric phase synchronization of the auditory cortices. The left N100m latency was significantly prolonged relative to the right N100m latency in PWS, while healthy control participants did not show any inter-hemispheric differences in latency. A phase-locking factor (PLF) analysis, which indicates the degree of local phase synchronization, demonstrated enhanced alpha-band synchrony in the right auditory area of PWS. A phase-locking value (PLV) analysis of inter-hemispheric synchronization demonstrated significant elevations in the beta band between the right and left auditory cortices in PWS. In addition, right PLF and PLVs were positively correlated with stuttering frequency in PWS. Taken together, our data suggest that increased right hemispheric local phase synchronization and increased inter-hemispheric phase synchronization are electrophysiological correlates of a compensatory mechanism for impaired left auditory processing in PWS.

Cortical activity during cued picture naming predicts individual differences in stuttering frequency.

OBJECTIVE: Developmental stuttering is characterized by fluent speech punctuated by stuttering events, the frequency of which varies among individuals and contexts. Most stuttering events occur at the beginning of an utterance, suggesting neural dynamics associated with stuttering may be evident during speech preparation. METHODS: This study used EEG to measure cortical activity during speech preparation in men who stutter, and compared the EEG measures to individual differences in stuttering rate as well as to a fluent control group. Each trial contained a cue followed by an acoustic probe at one of two onset times (early or late), and then a picture. There were two conditions: a speech condition where cues induced speech preparation of the picture's name and a control condition that minimized speech preparation. RESULTS: Across conditions stuttering frequency correlated to cue-related EEG beta power and auditory ERP slow waves from early onset acoustic probes. CONCLUSIONS: The findings reveal two new cortical markers of stuttering frequency that were present in both conditions, manifest at different times, are elicited by different stimuli (visual cue, auditory probe), and have different EEG responses (beta power, ERP slow wave). SIGNIFICANCE: The cue-target paradigm evoked brain responses that correlated to pre-experimental stuttering rate.

Attention demands of language production in adults who stutter.

OBJECTIVE: We investigated whether language production is atypically resource-demanding in adults who stutter (AWS) versus typically-fluent adults (TFA). METHODS: Fifteen TFA and 15 AWS named pictures overlaid with printed Semantic, Phonological or Unrelated Distractor words while monitoring frequent low tones versus rare high tones. Tones were presented at a short or long Stimulus Onset Asynchrony (SOA) relative to picture onset. Group, Tone Type, Tone SOA and Distractor Type effects on P3 amplitudes were the main focus. P3 amplitude was also investigated separately in a simple tone oddball task. RESULTS: P3 morphology was similar between groups in the simple task. In the dual task, a P3 effect was detected in TFA in all three distractor conditions at each Tone SOA. In AWS, a P3 effect was attenuated or undetectable at the Short Tone SOA depending on Distractor Type. CONCLUSIONS: In TFA, attentional resources were available for P3-indexed processes in tone perception and categorization in all distractor conditions at both Tone SOAs. For AWS, availability of attentional resources for secondary task processing was reduced as competition in word retrieval was resolved. SIGNIFICANCE: Results suggest that language production can be atypically resource-demanding in AWS. Theoretical and clinical implications of the findings are discussed.

Atypical central auditory speech-sound discrimination in children who stutter as indexed by the mismatch negativity.

PURPOSE: Recent theoretical conceptualizations suggest that disfluencies in stuttering may arise from several factors, one of them being atypical auditory processing. The main purpose of the present study was to investigate whether speech sound encoding and central auditory discrimination, are affected in children who stutter (CWS). METHODS: Participants were 10 CWS, and 12 typically developing children with fluent speech (TDC). Event-related potentials (ERPs) for syllables and syllable changes [consonant, vowel, vowel-duration, frequency (F0), and intensity changes], critical in speech perception and language development of CWS were compared to those of TDC. RESULTS: There were no significant group differences in the amplitudes or latencies of the P1 or N2 responses elicited by the standard stimuli. However, the Mismatch Negativity (MMN) amplitude was significantly smaller in CWS than in TDC. For TDC all deviants of the linguistic multifeature paradigm elicited significant MMN amplitudes, comparable with the results found earlier with the same paradigm in 6-year-old children. In contrast, only the duration change elicited a significant MMN in CWS. CONCLUSIONS: The results showed that central auditory speech-sound processing was typical at the level of sound encoding in CWS. In contrast, central speech-sound discrimination, as indexed by the MMN for multiple sound features (both phonetic and prosodic), was atypical in the group of CWS. Findings were linked to existing conceptualizations on stuttering etiology. EDUCATIONAL OBJECTIVES: The reader will be able (a) to describe recent findings on central auditory speech-sound processing in individuals who stutter, (b) to describe the measurement of auditory reception and central auditory speech-sound discrimination, (c) to describe the findings of central auditory speech-sound discrimination, as indexed by the mismatch negativity (MMN), in children who stutter.

Non-linguistic auditory processing and working memory update in pre-school children who stutter: an electrophysiological study.

Non-linguistic auditory processing and working memory update were examined with event-related potentials (ERPs) in 18 children who stutter (CWS) and 18 children who do not stutter (CWNS). Children heard frequent 1 kHz tones interspersed with rare 2 kHz tones. The two groups did not differ on any measure of the P1 and N1 components, strongly suggesting that early auditory processing of pure tones is unimpaired in CWS. However, as a group, only CWNS exhibited a P3 component to rare tones, suggesting that developmental stuttering may be associated with a less efficient attentional allocation and working memory update in response to auditory change.

Stuttering after right cerebellar infarction: a case study.

UNLABELLED: We report a male patient with neurogenic stuttering after cerebellar infarction. He had suffered from frontal and thalamus damage and he had exhibited aphasia, but his speech had been fluent until onset of the cerebellar infarction. Results of analysis of speech samples included the following: (1) the patient showed very frequent syllable repetition and part-word repetition. (2) The stuttering occurrence rate at the second test was much higher than at the first test. (3) Almost all stuttering occurred on initial word sounds; stuttering on the medial and final word was less frequent. (4) Adaptation effect was absent. (5) Secondary behaviors such as closing of the eyes and grimacing were observed. The internal model related to cerebellar functions can be modified using feedback-error information. Results suggest that internal model dysfunction caused this patient's stuttering. EDUCATIONAL OBJECTIVES: After reading this text, the reader will be able to: (1) provide characteristics of neurogenic stuttering after the cerebellum infarction; (2) discuss the relationship between neurogenic stuttering and functions of the cerebellum.

[Speech fluency developmental profile in Brazilian Portuguese speakers]. / Perfil evolutivo da fluência da fala de falantes do português brasileiro.

BACKGROUND: speech fluency varies from one individual to the next, fluent or stutterer, depending on several factors. Studies that investigate the influence of age on fluency patterns have been identified; however these differences were investigated in isolated age groups. Studies about life span fluency variations were not found. AIM: to verify the speech fluency developmental profile. METHOD: speech samples of 594 fluent participants of both genders, with ages between 2:0 and 99:11 years, speakers of the Brazilian Portuguese language, were analyzed. Participants were grouped as follows: pre-scholars, scholars, early adolescence, late adolescence, adults and elderlies. Speech samples were analyzed according to the Speech Fluency Profile variables and were compared regarding: typology of speech disruptions (typical and less typical), speech rate (words and syllables per minute) and frequency of speech disruptions (percentage of speech discontinuity). RESULTS: although isolated variations were identified, overall there was no significant difference between the age groups for the speech disruption indexes (typical and less typical speech disruptions and percentage of speech discontinuity). Significant differences were observed between the groups when considering speech rate. CONCLUSION: the development of the neurolinguistic system for speech fluency, in terms of speech disruptions, seems to stabilize itself during the first years of life, presenting no alterations during the life span. Indexes of speech rate present variations in the age groups, indicating patterns of acquisition, development, stabilization and degeneration.

Atypical neural functions underlying phonological processing and silent rehearsal in children who stutter.

Phonological processing was examined in school-age children who stutter (CWS) by assessing their performance and recording event-related brain potentials (ERPs) in a visual rhyming task. CWS had lower accuracy on rhyming judgments, but the cognitive processes that mediate the comparisons of the phonological representations of words, as indexed by the rhyming effect (RE) ERP, were similar for the stuttering and normally fluent groups. Thus the lower behavioral accuracy of rhyming judgments by the CWS could not be attributed to that particular stage of processing. Instead, the neural functions for processes preceding the RE, indexed by the N400 and CNV elicited by the primes and the N400 elicited by the targets, suggest atypical processing that may have resulted in less efficient, less accurate rhyming judgment for the CWS. Based on the present results, it seems likely that the neural processes related to phonological rehearsal and target word anticipation, as indexed by the CNV, are distinctive for CWS at this age. Further, it is likely that the relative contributions of the left and right hemispheres differ in CWS in the stage of processing when linguistic integration occurs, as indexed by the N400. Taken together, these results suggest that CWS may be less able to form and retain a stable neural representation of the prime onset and rime as they anticipate the target presentation, which may lead to lower rhyming judgment accuracy.

Perfil evolutivo da fluência da fala de falantes do português brasileiro / Speech fluency developmental profile in brazilian Portuguese speakers

TEMA: a fluência de fala varia de indivíduo para indivíduo, fluente ou gago, dependendo de diversos fatores. Estudos que investigam a influência da idade nos padrões de fluência foram identificados, mas em grupos etários isolados. Estudos sobre a variação da fluência da fala ao longo da vida não foram localizados. OBJETIVO: verificar o perfil evolutivo da fluência da fala. MÉTODO: foram analisadas amostras de fala de 594 participantes fluentes, de ambos os gêneros com idades entre 2:0 e 99:11 anos, falantes do Português Brasileiro, agrupado em: pré-escolares, escolares, adolescência inicial, adolescência final, adultos e idosos. As amostras de fala foram analisadas a partir das variáveis do Perfil da Fluência da Fala e comparadas quanto a: tipologia das rupturas (disfluências comuns e gagas), velocidade de fala (em palavras e sílabas por minuto) e freqüência das rupturas (porcentagem de descontinuidade de fala). RESULTADOS: ao longo das idades não houve diferença estatisticamente significante para os índices de ruptura (disfluências comuns e gagas e porcentagem de descontinuidade de fala), embora tenham sido identificadas algumas variações isoladas. Já para velocidade de fala observa-se diferença estatisticamente significante entre os grupos. CONCLUSÃO: a maturação do sistema neurolingüístico para a fluência, no que se refere às rupturas, parece se estabelecer já nos primeiros anos de vida e tendem a se manter inalteradas ao longo da vida. Os índices de velocidade de fala sofrem diferentes idades, indicando aquisição, desenvolvimento, estabilização e degeneração dos padrões.

BACKGROUND: speech fluency varies from one individual to the next, fluent or stutterer, depending on several factors. Studies that investigate the influence of age on fluency patterns have been identified; however these differences were investigated in isolated age groups. Studies about life span fluency variations were not found. AIM: to verify the speech fluency developmental profile. METHOD: speech samples of 594 fluent participants of both genders, with ages between 2:0 and 99:11 years, speakers of the Brazilian Portuguese language, were analyzed. Participants were grouped as follows: pre-scholars, scholars, early adolescence, late adolescence, adults and elderlies. Speech samples were analyzed according to the Speech Fluency Profile variables and were compared regarding: typology of speech disruptions (typical and less typical), speech rate (words and syllables per minute) and frequency of speech disruptions (percentage of speech discontinuity). RESULTS: although isolated variations were identified, overall there was no significant difference between the age groups for the speech disruption indexes (typical and less typical speech disruptions and percentage of speech discontinuity). Significant differences were observed between the groups when considering speech rate. CONCLUSION: the development of the neurolinguistic system for speech fluency, in terms of speech disruptions, seems to stabilize itself during the first years of life, presenting no alterations during the life span. Indexes of speech rate present variations in the age groups, indicating patterns of acquisition, development, stabilization and degeneration.

Sequence skill learning in persons who stutter: implications for cortico-striato-thalamo-cortical dysfunction.

UNLABELLED: The basal ganglia and cortico-striato-thalamo-cortical connections are known to play a critical role in sequence skill learning and increasing automaticity over practice. The current paper reviews four studies comparing the sequence skill learning and the transition to automaticity of persons who stutter (PWS) and fluent speakers (PNS) over practice. Studies One and Two found PWS to have poor finger tap sequencing skill and nonsense syllable sequencing skill after practice, and on retention and transfer tests relative to PNS. Studies Three and Four found PWS to be significantly less accurate and/or significantly slower after practice on dual tasks requiring concurrent sequencing and colour recognition over practice relative to PNS. Evidence of PWS' deficits in sequence skill learning and automaticity development support the hypothesis that dysfunction in cortico-striato-thalamo-cortical connections may be one etiological component in the development and maintenance of stuttering. EDUCATIONAL OBJECTIVES: As a result of this activity, the reader will: (1) be able to articulate the research regarding the basal ganglia system relating to sequence skill learning; (2) be able to summarize the research on stuttering with indications of sequence skill learning deficits; and (3) be able to discuss basal ganglia mechanisms with relevance for theory of stuttering.

Enhancing treatment for school-age children who stutter II. Reducing bullying through role-playing and self-disclosure.

UNLABELLED: This paper describes several treatment strategies that clinicians can use to help children who stutter who are experiencing bullying and other negative reactions from their peers. Specific strategies include problem-solving activities designed to help the child develop appropriate responses to bullying and a classroom presentation designed to educate peers about stuttering. To facilitate clinicians' application of these techniques, the strategies are presented in the context of a case study involving a 9-year-old boy who participated in a comprehensive treatment program for stuttering. Following treatment, the child exhibited an increased ability to respond to bullying experiences in a constructive fashion. In addition, negative comments by the child's peers diminished following the classroom presentation. Findings suggest that clinicians can help children overcome bullying and other negative reactions associated with stuttering through a number of well-supported treatment strategies that can be applied in a variety of clinical settings. EDUCATIONAL OBJECTIVES: After reading this article, participants will be able to: (1) define bullying and teasing and explain the difference between the two experiences; (2) describe two strategies for helping children who stutter successfully manage bullying experiences at school and in other settings; and (3) explain two strategies for educating children about stuttering and about bullying.