Invaluable Benefits of 10 Years of the International Collaboration of Aphasia Trialists (CATs).

Aphasia research has traditionally been considered a (unidisciplinary) niche topic in medical science. The international Collaboration of Aphasia Trialists (CATs) is a global collaboration of multidisciplinary aphasia researchers. Over the past 10 years, CATs has collectively taken a rigorous approach to systematically address persistent challenges to aphasia research quality. This article summarizes the achievements over the past decade. CATs' achievements include: standardizing terminology, advancing aphasia research design by aphasia expert consensus recommendations, developing a core data set and intervention descriptors, facilitating the involvement of people with the language impairment aphasia in the research process, translating, and adapting assessment tools into global languages, encouraging data sharing, developing innovative secondary data analysis methodologies and promoting the transparency and accessibility of high quality aphasia research reports. CATs' educational and scientific achievements over the past 10 years far exceed what individual researchers in the field could have ever achieved.

Towards efficient, ecological assessment of interaction: A scoping review of co-constructed communication.

BACKGROUND: The complexity of communication presents challenges for clinical assessment, outcome measurement and intervention for people with acquired brain injury. For the purposes of assessment or treatment, this complexity is usually managed by isolating specific linguistic functions or speech acts from the interactional context. Separating linguistic functions from their interactional context can lead to discourse being viewed as a static entity comprised of discrete features, rather than as a dynamic process of co-constructing meaning. The ecological validity of discourse assessments which rely on the deconstruction of linguistic functions is unclear. Previous studies have reported assessment tasks that preserve some of the dialogic features of communication, but as yet, these tasks have not been identified as a distinct genre of assessment. We suggest the term 'co-constructed communication' to describe tasks which are specifically designed to capture the dynamic, jointly produced nature of communication within a replicable assessment task. AIMS: To identify and summarize how co-constructed communication has been assessed with individuals with non-progressive acquired communication disability regarding task design, measures and psychometric robustness. METHODS: A scoping review methodology was used to identity relevant studies. Systematic database searches were conducted on studies published before July 2021. Studies in the yield were assessed against eligibility criteria, with 37 studies identified as eligible for inclusion. MAIN CONTRIBUTION: This is the first time that co-constructed communication has been defined as a genre of discourse assessment for stroke and traumatic brain injury populations. Co-constructed communication has been assessed for 144 individuals with aphasia and 111 with cognitive-communication disability. Five categories of co-constructed communication tasks were identified, ranging in complexity. Variability exists in how these assessment tasks are labelled and measured. Assessment measures require further psychometric profiling, specifically regarding test-retest reliability and validity. CONCLUSIONS: Co-constructed communication is a discourse genre which offers researchers and clinicians a replicable method to assess language and communication in an experimentally rigorous way, within an ecologically valid context, bridging the gap between experimental and ecological assessment approaches. WHAT THIS PAPER ADDS: What is already known on this subject Standardized assessments of language skills and monologue offer reliable, replicable ways to measure language. However, isolating language from an interactional context fundamentally changes the behaviour under study. This raises questions about the ecological validity of the measures we routinely use to determine diagnoses, guide treatment planning and measure the success of treatment. What this study adds to the existing knowledge This review highlights studies that conceptualize, and often quantify, interaction by combining experimental rigour and aspects of everyday dialogue. This is the first time this genre of discourse assessment has been identified. We propose the term 'co-constructed communication' to describe this genre and provide an operational definition for the term. What are the practical and clinical implications of this study? Co-constructed communication assessment tasks require refinement, particularly regarding aspects of psychometric robustness. In the future, these tasks offer pragmatic, meaningful ways to capture the effect and impact of aphasia and cognitive-communication disability within interaction.

Characteristics and impacts of community aphasia group facilitation: a systematic scoping review.

PURPOSE: Community aphasia groups (CAGs) can provide a range of benefits to people with aphasia and support long-term psychosocial wellbeing. However, the dominant speech-pathologist-led service delivery model is inherently limited in scope. Peer-led groups hold potential as a sustainable and empowering extension of this traditional model. The implementation of peer-led models likely requires targeted training and support, however little is known about the characteristics and impacts of CAG facilitation. This study reviews the literature on CAGs and their facilitation. MATERIALS AND METHODS: We conducted a scoping review on this topic. RESULTS: One hundred and seventy-seven texts were included, reporting on a heterogeneous range of activities. Most texts reported on speech-pathologist-led groups, however, a range of alternative models were also represented. While no studies directly compared the impacts of different facilitation models, some comparative benefits could be drawn from the literature. Facilitation was perceived as complex and challenging, and significant gaps were identified in the training of facilitators. Ten qualitative studies investigated characteristics and impacts of facilitator behaviours, providing a useful foundation for future development of training and evaluation tools. CONCLUSIONS: Further investigation into alternative facilitation models and facilitator training needs will likely support the proliferation of high-quality CAGs.Implications for RehabilitationCommunity aphasia groups (CAGs) play an important role in supporting identity and wellbeing for individuals with chronic aphasia.The traditional speech-pathology led model of group service delivery is limited in scope; the addition of peer- and volunteer-led CAGs may facilitate access to groups and meet a range of different needs for individuals with aphasia.CAG facilitation is a complex and challenging task, likely requiring specialised training, however, this has not been widely available to facilitators.The development of specialised facilitator training will likely support the proliferation of sustainable and high-quality CAGs.