What works for whom? Multidimensional individualized stuttering therapy (MIST)

Evaluation of an Integrated Fluency and Acceptance and Commitment Therapy Intervention for Adolescents and Adults Who Stutter

PURPOSE

Developmental stuttering is a complex and multifaceted neurodevelopmental disorder that may cause pervasive negative consequences for adults who stutter (AWS). Historically, intervention for AWS has primarily addressed speech fluency, with less focus on the covert psychosocial aspects of the disorder. The purpose of this article is to report on a feasibility trial evaluating a novel integrated intervention that combines traditional stuttering management techniques with Acceptance and Commitment Therapy (ACT) for AWS.

METHOD

Twenty-nine AWS participated in the feasibility trial. All participants successfully completed a combined fluency and ACT intervention, titled the fluency and Acceptance and Commitment Therapy for Stuttering (fACTS) Program. As this was a feasibility study, no control group was included. Intervention was administered by two certified practicing speech-language pathologists, over eight 60- to 90-min sessions.

RESULTS

Generalized linear mixed modeling was used to determine change from pre- to post-intervention and follow-up. Significant pre- and post-intervention improvements in self-efficacy, psychosocial functioning, and psychological flexibility were observed, along with significant reductions in observable stuttering behaviors (i.e., stuttered speech frequency). Intervention gains for all variables of interest were maintained 3 and 6 months post-intervention.

CONCLUSIONS

The fACTS Program was created to be a holistic and flexible intervention to promote self-efficacy beliefs and address stuttering-related psychosocial impacts and speech fluency goals of AWS. Preliminary results indicated positive improvement in all psychosocial outcomes (i.e., self-efficacy, psychosocial impact, and psychological flexibility) and observable speech fluency following completion of the program. Future clinical trials of the fACTS Program with an included control group will further investigate the mechanisms of change for the positive effects observed.

Eye movement as a simple, cost-effective tool for people who stutter: A case study

BACKGROUND

 Access to services remains the biggest barrier to helping the most vulnerable in the South African Stuttering Community. This novel stuttering therapy, harnessing an unconscious link between eye and tongue movement, may provide a new therapeutic approach, easily communicated and deliverable online.

OBJECTIVES

 This study provides both objective and subjective assessments of the feasibility of this intervention. Assessment tools holistically address all components of stuttering in line with comprehensive treatment approaches: core behaviours, secondary behaviours, anticipation and reactions.

METHOD

 On receipt of ethical approval, this single-subject case design recruited one adult (21-year-old) male with a developmental stutter (DS). The participant gave informed consent and completed four scheduled assessments: baseline, after 5-week training, 3 months post-intervention and 24 months post-completion. The study used objective assessment tools: Stuttering Severity Instrument-4 (SSI-4); Subjective-assessment tools: SSI-4 clinical use self-report tool (CUSR); Overall Assessment of Speaker's Experience of Stuttering (OASES-A); Premonitory Awareness in Stuttering (PAiS) and Self-Report Stuttering Severity* (SRSS) (*final assessment).

RESULTS

 The participant's scores improved across all assessment measures, which may reflect a holistic improvement. The participant reported that the tool was very useful. There were no negative consequences.

CONCLUSION

 This case report indicates that this innovative treatment may be feasible. No adverse effects were experienced, and the treatment only benefited the participant. The results justify the design of a pilot randomised feasibility clinical trial.Contribution: The results indicate that this is a needed breakthrough in stuttering therapy as the instructions can be easily translated into any language. It can also be delivered remotely reducing accessibility barriers.

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.

Stuttering interventions for children, adolescents, and adults: a systematic review as a part of clinical guidelines

INTRODUCTION

Stuttering may have a holistic effect on the quality of life of a person who stutters by limiting participation in social situations, resulting in feelings of isolation and frustration, leading to difficulties in education and employment and increasing the likelihood of mental health problems. Even young children who stutter may have negative experiences of speaking. Therefore, it is important to treat stuttering behavior effectively in both children and adults. The purpose of this paper was to systematically review group and case studies about the effectiveness of behavioral stuttering interventions to provide evidence-based guidelines for clinicians.

METHODS

Systematic data retrieval was conducted in four electronic databases (PsycINFO, CINAHL, PubMed, Cochrane). The assessment of search results was conducted according to predetermined inclusion and exclusion criteria by two independent judges. The methodological quality of each paper was assessed using strict criteria to include only high-quality research.

RESULTS

The search revealed 2293 results, and 38 papers (systematic reviews N=3, group design studies N=21 and case studies N=14) with acceptable methodological quality were included. The data show that there is most evidence about the treatment of early childhood stuttering, very little evidence about school-aged children and some evidence about adults. The most convincing evidence is about the Lidcombe Program in the treatment of young children who stutter, but also other methods have promising evidence. Our data imply that in the treatment of adults who stutter, holistic treatments may influence speech fluency and overall experience of stuttering behavior. Speech restructuring treatments may have a positive effect on overt characteristics of stuttering, but not on covert stuttering behavior.

CONCLUSIONS

The results of this review agree with earlier reviews about the treatment of young children. However, due to different inclusion criteria, this review also shows the benefits of holistic treatment approaches with adults and adolescents.

The good, the bad, and the ugly: Unpacking the pros and cons associated with change for adults who stutter

PURPOSE

The purpose of the current study was to document the pros and cons that adults who stutter may consider when deciding to change how they live with stuttering.

METHODS

Semi-structured interviews were conducted with 11 adults who stutter and 12 speech-language pathologists who specialize in stuttering therapy. Participants were asked to identify and discuss the advantages and disadvantages of making a change to how they live with stuttering. Reflexive thematic analysis was used to generate multilevel themes.

RESULTS

Meaningful units were extracted from interview transcripts to develop 37 discrete pros and 15 discrete cons. The pros of change clustered into five organizing themes: enriching one's social relationships, feeling better in social interactions, developing a healthier sense of self, gaining autonomy, and communicating easier. The cons of change clustered into three organizing themes: experiencing discomfort, expending resources, and recognizing that some things may not change.

CONCLUSION

This study documented why adults who stutter may or may not seek change. Identifying the pros and cons of behavior change is an important step in understanding why some clients who stutter are ambivalent about, or resistant to, the therapeutic process.

Covert and overt stuttering: Concepts and comparative findings

PURPOSE

One way of conceptualizing stuttering is on a continuum from primarily covert to primarily overt. Assertions have been made as to how those with covert stuttering might be impacted differently to those with overt stuttering, but findings from well-controlled studies remain scarce. The principal aim of the present study was to compare the impact of stuttering and emotional distress related to two subgroups of persons who stutter: people with primarily overt stuttering and people with primarily covert stuttering. In exploring this, we also offer some preliminary thoughts on challenges with the terminology surrounding the concepts of 'overtness' and 'covertness'.

METHODS

Twenty-one adults already enrolled in a multiple, single-case treatment study (Sønsterud et al., 2019, 2020) took part in the present study, and underwent a battery of tests that assessed anxiety, depression, fear of negative evaluation, and quality of life. The sub-groups were identified on the basis of self-categorization using the Tomaiuoli, Del Gado, Spinetti, Capparelli, and Venuti (2015) classification, as well as the evaluation of speech samples from two independent SLPs (Sønsterud et al., 2020). The classifications were further explored by five independent 'lay' assessors who reviewed pre-therapy video and rated participants' speech on a 4-point Likert Stuttering Probability Scale (1 = 'fluent with no doubt', 2 = 'fluent with some doubt', 3 = 'stuttering with some doubt' and 4 = 'stuttering with no doubt').

RESULTS

No significant differences were found between the primarily overt and primarily covert groups in relation to self-reported symptoms of anxiety, depression, and fear of negative evaluation. However, investigation at item level identified a significant difference in linguistic avoidance between the two groups.

CONCLUSION

There may be fewer differences between people with primarily overt and primarily covert stuttering than previously thought with regards to emotional impact, as well as most aspects of avoidance behavior.

"Knowledge Without Action Means Nothing": Stakeholder Insights on the Behaviors That Constitute Positive Change for Adults Who Stutter

PURPOSE

The aim of this study was to document the behaviors that adults who stutter (AWS) may engage in to make positive changes to living with stuttering.

METHOD

We interviewed 23 key stakeholders, including 11 AWS and 12 speech-language pathologists who specialize in stuttering therapy. The semi-structured interviews began with the primary question, "If an adult who stutters was making positive changes to living with stuttering, what would they be doing?" Follow-up probing questions focused the interviews on identifying actionable behaviors that would suggest positive changes. The interviews were transcribed and qualitatively analyzed using applied and reflexive thematic analyses to develop multilevel themes.

RESULTS

Meaningful units extracted from the interviews contributed to three high-order global themes: (a) noticing and adjusting physical behaviors involved in speaking, to the extent that it is personally important to do so; (b) developing neutral or positive thoughts and feelings about stuttering; and (c) participating more fully in social and professional activities, even if the person stutters or thinks they might stutter. We developed 35 low-order basic themes, which we grouped into 11 mid-order organizing themes, to richly illustrate the three global themes.

CONCLUSIONS

These findings extend the ongoing discussion regarding best practices for therapy targets in stuttering intervention. We identified measurable, multidimensional actions that clinicians can integrate in their therapy plans with AWS. While these actions represent a holistic approach to making positive changes, it grants clients and clinicians space to develop individualized intentions and outcomes.

Meet Them Where They're At: Maximizing Adolescents' Engagement in Stuttering Therapy

Adolescents who stutter often pose a unique clinical challenge for clinicians. They are a population simultaneously striving for independence from adults and social connection with their peers at a time when social fears surge and lifelong habits take root. It is a time when they may seem "unmotivated" to learn and utilize new communication or coping skills related to stuttering. How can clinicians maximize adolescents' engagement in stuttering therapy to improve meaningful outcomes? The purpose of this article is to describe a transtheoretical approach to assessing adolescents' readiness to make positive changes to living with stuttering, and to provide motivational interviewing strategies that clinicians can employ to help propel adolescents toward personally significant change. These principles will be applied to the case study of a 14-year-old who stutters to demonstrate how clinicians can put this approach to work as they meet their adolescent clients "where they're at."

Obtaining consensus on core components of stuttering intervention for adults: An e-Delphi Survey with key stakeholders

BACKGROUND

Evidence-based practice involves the synthesis of multiple forms of evidence to inform clinical decision-making and treatment evaluation. Practice- and patient-based evidence are two forms of evidence that are under-represented in the stuttering literature. The collection of such knowledge is essential to support the design and delivery of effective stuttering interventions for adults.

AIMS

To build stakeholder consensus on the core components of intervention for adults who stutter, and to establish a guiding framework for the design and development of evidence-based interventions for adults who stutter.

METHODS & PROCEDURES

Adults who stutter and speech and language therapists (SLTs) with experience in providing stuttering intervention participated in the three-round e-Delphi Survey focused on: (1) identifying key stuttering intervention components, including principles, practices, and structural and contextual elements; and (2) obtaining group consensus on stuttering intervention components. Statements were categorized using the International Classification of Functioning, Disability and Health (ICF) model adapted to the study of stuttering.

OUTCOMES & RESULTS

A total of 48 individuals agreed to participate: 48/48 (100%) completed the Round 1 questionnaire, 40/48 (83%) responded to Round 2 and 36/40 (90%) participated in Round 3. Following content analysis of Round 1, 101 statements were developed, and consensus was achieved on 89 statements perceived as representing the core components of stuttering intervention for adults. Categorization of these statements reflected the key stuttering intervention components relating to personal reactions to stuttering, limitations in life participation and environmental factors.

CONCLUSIONS & IMPLICATIONS

Consensus on the core components of stuttering intervention was reached through engagement with key stakeholders. The evidence-based framework presented highlights the range of key intervention components a clinician should consider when designing interventions for adults who stutter.

WHAT THIS PAPER ADDS

What is already known on the subject Evidence-based practice endorses the synthesis of multiple knowledge forms including research, practice and patient evidence to support clinical decision-making and treatment evaluation. The stuttering literature is characterized by an over-representation of efficacy evidence, with significantly less practice and patient evidence to guide clinical practice. What this paper adds to existing knowledge This study adds valuable practice- and patient-based evidence for effective stuttering intervention components for adults who stutter. These relate to personal reactions to stuttering, limitations in life participation and environmental factors. What are the potential or actual clinical implications of this work? This research presents a stakeholder-informed framework for stuttering intervention to guide SLTs working with adults who stutter in designing evidence-based interventions. The framework supports the adoption of a person-centred approach to intervention to ensure each client's unique needs, preferences, values and desired outcomes are explored and integrated into therapy.

Evaluating three stuttering assessments through network analysis, random forests and cluster analysis

PURPOSE

In stuttering, cognitive and behavioural variables interact in nonlinear fashion. These variables can be assessed by instruments which evaluate perceived impact of stuttering and stuttering severity. We applied three statistical methods in combination to the analysis of three assessment protocols to discover relationships within and between the tests to better understand variations in behavioural and social aspects of stuttering.

METHODS

Scores from Stuttering Severity Index (SSI-IV), Overall Assessment of the Speaker's Experience of Stuttering scale (OASES), and Unhelpful Thoughts and Beliefs About Stuttering scale (UTBAS), collected from 26 participants were compared using three statistical methods: network analysis, random forests, and cluster analysis.

RESULTS

Network analysis demonstrated that SSI-IV only weakly interacts with a quality of life index (OASES) and a self-perception and belief systems index (UTBAS). Random forest analyses revealed the last two measures relate strongly to each other. The results from cluster analysis suggest a) a possible regrouping of OASES items and b) a possible use of one UTBAS scale instead of the three.

CONCLUSION

A combination of three statistical methods allowed us to evaluate the three assessments in more depth. The lack of interaction between the SSI-IV on the one hand, and OASES and UTBAS on the other, suggests that the network of the three commonly used stuttering assessments may be fractured in a non-productive way. A potential gap may exist for an assessment tool that would link behavioural and social aspects of stuttering.