Aphasia Group Research Articles

The Turkish version of the cognitive assessment scale for stroke patients (CASP-TR): a reliability and validity

ABSTRACT Background Stroke, a prevalent neurological condition globally, is associated with a high mortality and often affects cognitive function. The Cognitive Assessment Scale for Stroke Patients (CASP) was developed to quickly identify and measure primary cognitive deficits, focusing particularly on stroke survivors. Within the Turkish context, there is a limited availability of validated cognitive screening tests for use after stroke. Aims The study aimed to translate CASP into Turkish (CASP-TR) and validate it in stroke patients. Methods and procedures After the translation of the CASP items into culturally appropriate Turkish versions, a pilot testing of the pre-final version was administered to post-stroke patients and healthy controls by two raters. Following completion of the final version of CASP-TR, 40 stroke patients were consecutively enrolled in validation process. Three blinded raters conducted all assessments with intervals of 1- or 2 days between evaluation sessions. The accuracy of CASP-TR was assessed using sensitivity, specificity, predictive values, likelihood ratios, and area under curve. CASP-TR performance in post-stroke patients with and without cognitive dysfunction was compared using the Mini-Mental State Examination (MMSE). CASP-TR data obtained by two raters were compared based on the presence of aphasia. Outcomes and results The study assessed inter-rater agreement using intraclass correlation coefficient (ICC), yielding a score of 0.92 (95% CI 0.85–0.96) between raters. Across subtests, moderate to good agreement was observed in most domains. Correlation analyses showed a strong positive relationship (r = 0.80) between mean CASP-TR and MMSE scores. CASP-TR and MMSE scores were stratified based on the presence of aphasia. CASP-TR scores from both raters were notably lower in the aphasia group compared to the non-aphasia group (p < 0.001). Similarly, MMSE scores were significantly lower in the aphasia group (p < 0.001). The patients were also classified into cognitive dysfunction and non-cognitive dysfunction groups based on MMSE scores. No statistically significant score differences were found between examiners in the cognitive dysfunction group (p = 0.267) or non-cognitive dysfunction group (p = 0.156) (p > 0.05). CASP-TR demonstrated a sensitivity of 82.4%, specificity of 78.6%, positive predictive value of 87.5%, negative predictive value of 68.7%, a positive likelihood ratio of 3.77, a negative likelihood ratio of 0.25, and an area under curve of 0.88. Conclusions This study proposes that CASP-TR is a valuable cognitive screening tool for assessing cognitive deficits in stroke patients, and it also demonstrates sensitivity to cognitive deficits in stroke patients with aphasia. The thorough validation within the acute post-stroke Turkish population demonstrates remarkably good accuracy and very good Area Under Curve (AUC) values.

Acceptability, feasibility and preliminary efficacy of the Peer-led Hub-and-Spoke Community Aphasia Group program

ABSTRACT Background Several programs addressing the long-term impacts of aphasia after stroke show promise. However, barriers restrict their implementation at scale. Hub-and-spoke models of care operate in several health contexts to reduce the health care costs associated with health professionals providing all direct services, and to improve the reach of services to communities at distance from the main service. We developed the Peer-led Hub-and-Spoke Community Aphasia Group (Peer-led HS CAG) program to address staff and service availability barriers. The Peer-led HS CAG organises service through a “Hub” of allied and mental health professionals, led by a speech pathologist, who provide consultative and occasional direct services to the aphasia group. The “spokes” are volunteers with and without aphasia, trained and supported by the “Hub” staff to facilitate groups in the community. Aims We aimed to investigate the feasibility, acceptability, and preliminary efficacy of the Peer-led HS CAG program to address long-term impacts of aphasia. Methods & Procedures In a Phase I, proof of concept, mixed methods design we utilised: (1) a pre-post observational quantitative design; (2) an embedded qualitative study using semi-structured in-depth interviews of group facilitators and participants. Four health professionals from speech pathology, psychology, art therapy, and music therapy formed the Hub. Four volunteers were trained as group facilitators over two, half-day sessions prior to the group programs commencing. The 12-week group programme was delivered twice in a community setting, consisting of weekly 2-hour sessions. Seven people with aphasia attended: four in programme one, three in program two. The group program consisted of four compulsory topic sessions and eight “members choice” sessions. Seven close others attended four of the twelve program sessions: two with their family members with aphasia; two with specific “hub” staff input. During the remaining eight weeks of the program close others chose whether to meet independently. Outcome measures were taken at four time points: 6 weeks pre-program; immediately pre-program; immediately after-program; 6-week follow up. Outcomes & Results Four participants showed clinically meaningful gains in communication-related quality of life and three in functional communication immediately post-program or at 6-week follow up. Qualitative interviews confirmed the feasibility and overall acceptability of the program. Close others requested additional sessions specific to their needs. Conclusions The Peer-led HS CAG program is a feasible and acceptable way to address the current lack of community aphasia groups. Future phase II and III research should explore the efficacy and costs of this model.

Expanding the scope: multimodal dimensions in aphasia discourse analysis-preliminary findings.

Aphasia, resulting from acquired brain injury, disrupts language processing and usage, significantly impacting individuals' social communication and life participation. Given the limitations of traditional assessments in capturing the nuanced challenges faced by individuals with aphasia, this study seeks to explore the potential benefits of integrating multimodal communication elements into discourse analysis to better capture narrative proficiency in this population. This study examined how incorporating multimodal communication elements (e.g., physical gestures, writing, drawing) into discourse analysis may affect the narrative outcomes of persons with aphasia compared to those observed using methods that exclude multimodal considerations. Participants included individuals with chronic aphasia and age-and education-matched healthy controls who completed a storytelling task-the Bear and the Fly story. Macrolinguistic scores were obtained using verbal-only and multimodal scoring approaches. Additionally, the frequency and type of multimodal communication use during storytelling were examined in relation to aphasia characteristics. Statistical analyses included both within-group and between-group comparisons as well as correlational analyses. Individuals with aphasia scored significantly higher in terms of their macrolinguistic abilities when multimodal scoring was considered compared to verbal-only scoring. Within the aphasia group, there were prominent differences noted in macrolinguistic scores for both fluent and nonfluent aphasia. Specifically, both groups scored higher on Main Concepts when multimodal scoring was considered, with the nonfluent group demonstrating significantly higher Main Concept and total macrolinguistic rubric scores in multimodal scoring compared to verbal scoring on the storytelling task. Additionally, aphasia severity showed moderate positive correlations with total macrolinguistic scores, indicating that individuals with less severe aphasia tended to produce higher quality narratives. Lastly, although persons with aphasia used different types of nonverbal modalities (i.e., drawing, writing), the use of meaning-laden gestures was most predominant during storytelling, emphasizing the importance of multimodal elements in communication for individuals with aphasia. Our preliminary study findings underscore the importance of considering multimodal communication in assessing discourse performance among individuals with aphasia. Tailoring assessment approaches based on aphasia subtypes can provide valuable insights into linguistic abilities and inform targeted intervention strategies for improving communication outcomes.

Speaking Up and Being Heard: The Importance of Functional Communication and Discourse Principles in Aphasia Intervention.

This article acknowledges Audrey Holland's influence on aphasiology as it specifically relates to the emergence of a strengths-based perspective on the everyday communication of people with aphasia. We explore a historical perspective, as well as current ways in which everyday communicative events are approached in both clinical and research practice. The term "functional communication" is synonymous with Audrey's work, with linguistically-based discourse analysis and therapy both viewed as natural companions and extensions of the concept within aphasiology. Audrey's focus on the interactional side of communication and psychosocial impacts of aphasia, as well as her expertise in analysis and measurement, contributed to the coalescing of impairment-based and social communication approaches, encompassing a true sense of humanity and connectedness. Her application of these in international contexts was also noteworthy. In this article, we hope to capture principles of aphasia management that underpin current clinical practice, and also move beyond the traditional clinic context to consider aphasia groups that have had such a key role in promoting successful social communication by and with people with aphasia. We suggest future directions to further promote the principles advocated by Audrey Holland in assisting people with aphasia to move forward with confidence with their conversation partners, friends, and communities.

Picture Naming Properties of Turkish People with Fluent and Non-Fluent Aphasia

Objectives: People with aphasia (PWA) have naming problems. During naming activities, they produce paraphasias. However, there is no significant association between paraphasia and aphasia types. This study aimed to identify the relationship between paraphasia and aphasia type, as well as the effect of cueing on naming performance. Materials and Methods: The study comprised 37 Turkish PWA who were divided into two groups: fluent and non-fluent aphasia. Participants were presented with 40 pictures and asked to name them. Cues were given in case they did not answer correctly. The participants' answers, the types of paraphasias, and how they responded to the cues were all recorded. Results: Participants in both groups significantly increased their naming performance for all words when cues were given. A total of 181 paraphasias were observed in the fluent aphasia group: Phonemic paraphasias were the most common (41.4%), followed by semantic paraphasias with 32.1%. There were 270 paraphasias in the non-fluent aphasia group, with phonemic paraphasia being the most common (60.7%). Conclusion: Phonemic and neologistic paraphasias were significantly higher in the non-fluent group. Phonemic and neologistic paraphasia is more common in those with non-fluent aphasia. This study found that the cueing method had a favourable influence on PWAs' naming performance, which is consistent with prior research.

Automated Analysis of Fluency Behaviors in Aphasia.

This study explored the use of an automated language analysis tool, FLUCALC, for measuring fluency in aphasia. The purpose was to determine whether CLAN's FLUCALC command could produce efficient, objective outcome measures for salient aspects of fluency in aphasia. The FLUCALC command was used on CHAT transcripts of Cinderella stories from people with aphasia (PWA; n = 281) and controls (n = 257) in the AphasiaBank database. PWA produced significantly fewer total words, fewer words per minute, more pausing, more repetitions, more revisions, and more phonological fragments than controls, with only one exception: The Wernicke's group was similar to the control group in percentage of filled pauses. Individuals with Broca's aphasia had significantly longer inter-utterance pauses and fewer total words than all other aphasia groups. Both the Broca's and conduction aphasia groups had higher percentages of phrase repetitions than the NABW (NotAphasicByWAB) group. The conduction aphasia group also had a higher percentage of phrase revisions than the NABW and the anomic aphasia groups. Principal components analysis revealed two principal components that accounted for around 60% of the variance and related to quantity of output, rate of speech, and quality of output. The Gaussian mixture models showed that the participants clustered in three groups, which corresponded predominantly to the controls, the nonfluent aphasia group, and the remaining aphasia groups (all classically fluent aphasia types). FLUCALC is an efficient way to measure objective fluency behaviors in language samples in aphasia. Automated analyses of objective fluency behaviors on large samples of adults with and without aphasia can produce measures that can be used by researchers and clinicians to better understand and track salient aspects of fluency in aphasia. https://doi.org/10.23641/asha.25979863.

The development of a novel, standardized, norm-referenced Arabic Discourse Assessment Tool (ADAT), including an examination of psychometric properties of discourse measures in aphasia.

People with aphasia (PWA) typically exhibit deficits in spoken discourse. Discourse analysis is the gold standard approach to assess language deficits beyond sentence level. However, the available discourse assessment tools are biased towards English and European languages and Western culture. Additionally, there is a lack of consensus on which discourse measures to use and limited evidence of the psychometric properties of published discourse measurements. (1) To develop a standardized, norm-referenced, culturally and linguistically appropriate Arabic Discourse Assessment Tool (ADAT); and (2) to examine the psychometric properties of content and construct validity and interrater reliability of different discourse measures elicited using three discourse genres (descriptive, narrative and procedural) in neurotypical control adults and matched PWA. Discourse samples were collected using three novel discourse stimuli that are sensitive to the Arabic language and culture from 70 neurotypical control adults and a matched group of 50 PWA. Transcription agreement was assessed. A standard approach was used to evaluate construct validity and interrater reliability for 16 discourse measures that assess fluency, language productivity, information content, lexical-semantics, lexical diversity, grammatical category, grammatical structure and syntactic complexity. Strong measures were identified based on their psychometric properties, and normative data were established on these measures. Discourse performance of PWA was then examined using the newly developed tool (ADAT). Transcription agreement was extremely high for all discourse stimuli in both groups. Eight discourse measures were proven to have consistently very high construct validity and consistently very good to excellent reliability across the three stimuli in both neurotypical control and aphasia groups: lexical information units, content information units, words per minute, discourse duration, number of different words, number of complete sentences and proportion of open and closed class words. Norms were established on these measures, and cut-off scores of impairments were determined. Other measures showed low construct validity and variable or poor reliability across the two groups. The newly developed, standardized, and norm-referenced tool(ADAT) consist of three discourse stimuli and eight high-quality discourse measures that assess multiple aspects of spoken discourse and were able to differentiate PWA from neurotypical adults consistently. ADAT also includes normative data and cut-off impairment scores. The tool has great potential to enhance clinical practice and research with Arabic speakers. Evidence was provided that not all discourse measures are of high quality, as some are vulnerable to differences between raters, discourse stimuli and groups. Clinicians and researchers can use ADAT for accurate aphasia assessments, better management plans and to monitor therapy effectiveness. ADAT can be further validated in other clinical populations with language impairments. What is already known on the subject Discourse analysis is the gold standard approach to assess language deficits beyond sentence level. However, existing discourse assessment tools are biased towards English and European languages and Western culture. Additionally, there is a lack of consensus on which discourse measures to use in aphasia, and limited evidence of the psychometric properties of published discourse measurements. What this paper adds to existing knowledge A novel, standardized, norm-referenced Arabic Discourse Assessment Tool (ADAT) was developed and validated in this study. ADAT was further validated among PWA. The study provides evidence that not all discourse measures are of high quality and thus should not be used with confidence. Specific measures are vulnerable to the type of stimuli, the rater and/or the tested group. On the other hand, eight discourse measures were identified to be reliable between different raters and across different stimuli for the two groups, and they were able to differentiate the discourse performance of PWA from neurotypical control adults. Normative data derived from neurotypical control adults were established on these strong measures, and the performance of PWA was classified as impaired based on these norms. What are the potential or actual clinical implications of this work? The present study provides a novel, standardized, norm-referenced, validated discourse assessment tool that is culturally and linguistically appropriate for use by Arabic speakers (ADAT). ADAT holds immense potential to enhance clinical practice and research with Arabic speakers. The study also identified strong discourse measures that can be used to assess language productivity, information content, lexical-semantics, lexical diversity, grammatical category, and syntactic complexity for accurate and comprehensive assessments. This will lead to better rehabilitation management by guiding the development of tailored client-centred interventions. ADAT can be utilized in clinical and research settings in PWA and has the potential to be further validated with other clinical populations.

Structural Neuroplasticity Effects of Singing in Chronic Aphasia.

Singing-based treatments of aphasia can improve language outcomes, but the neural benefits of group-based singing in aphasia are unknown. Here, we set out to determine the structural neuroplasticity changes underpinning group-based singing-induced treatment effects in chronic aphasia. Twenty-eight patients with at least mild nonfluent poststroke aphasia were randomized into two groups that received a 4-month multicomponent singing intervention (singing group) or standard care (control group). High-resolution T1 images and multishell diffusion-weighted MRI data were collected in two time points (baseline/5 months). Structural gray matter (GM) and white matter (WM) neuroplasticity changes were assessed using language network region of interest-based voxel-based morphometry (VBM) and quantitative anisotropy-based connectometry, and their associations to improved language outcomes (Western Aphasia Battery Naming and Repetition) were evaluated. Connectometry analyses showed that the singing group enhanced structural WM connectivity in the left arcuate fasciculus (AF) and corpus callosum as well as in the frontal aslant tract (FAT), superior longitudinal fasciculus, and corticostriatal tract bilaterally compared with the control group. Moreover, in VBM, the singing group showed GM volume increase in the left inferior frontal cortex (Brodmann area 44) compared with the control group. The neuroplasticity effects in the left BA44, AF, and FAT correlated with improved naming abilities after the intervention. These findings suggest that in the poststroke aphasia group, singing can bring about structural neuroplasticity changes in left frontal language areas and in bilateral language pathways, which underpin treatment-induced improvement in speech production.

Functional and structural abnormalities of the speech disorders: a multimodal activation likelihood estimation meta-analysis.

Speech disorders are associated with different degrees of functional and structural abnormalities. However, the abnormalities associated with specific disorders, and the common abnormalities shown by all disorders, remain unclear. Herein, a meta-analysis was conducted to integrate the results of 70 studies that compared 1843 speech disorder patients (dysarthria, dysphonia, stuttering, and aphasia) to 1950 healthy controls in terms of brain activity, functional connectivity, gray matter, and white matter fractional anisotropy. The analysis revealed that compared to controls, the dysarthria group showed higher activity in the left superior temporal gyrus and lower activity in the left postcentral gyrus. The dysphonia group had higher activity in the right precentral and postcentral gyrus. The stuttering group had higher activity in the right inferior frontal gyrus and lower activity in the left inferior frontal gyrus. The aphasia group showed lower activity in the bilateral anterior cingulate gyrus and left superior frontal gyrus. Across the four disorders, there were concurrent lower activity, gray matter, and fractional anisotropy in motor and auditory cortices, and stronger connectivity between the default mode network and frontoparietal network. These findings enhance our understanding of the neural basis of speech disorders, potentially aiding clinical diagnosis and intervention.

The role of cognitive control and naming in aphasia

The classical aphasia literature has placed considerable emphasis on the language-centered understanding of aphasia and failed to consider the role of executive functions (EFs) regarding different aspects of patients’ performance. Many current studies suggest deficits in EFs in individuals with aphasia, however, the available data is still limited. Here, our aim was to investigate the impairment of EFs and its potential negative effects on naming (slower performance, increased reaction time and/or decreased accuracy). We sought to determine whether the poor performance observed in word fluency task correlated with similar outcomes in naming. Our study involved five Hungarian post stroke aphasic patients (2 males and 3 females) between the ages of 60 and 70, as well as a control group matched for age and gender. The participants were diagnosed with different types of aphasia (global, Wernicke’s, anomic and conduction). This study employed various neuropsychological and linguistic batteries. By comparing the patients’ performance to that of the control group, we aimed to investigate the impacts of stroke. Within the aphasia group, we observed difficulties in following complex commands and a connection between general slowness and reduced accuracy in naming. We concluded that impairment of executive functions may have a negative impact on naming, comprehension, and fluency. Therefore, it is important to consider functional variations in neural networks, and to base our interpretations on the available psychophysiological data in literature. Our findings provide an alternative perspective to the traditional assessment of aphasia and highlight the importance of considering the role of executive functions.

Abstract TP78: Characteristics of Verbal and Non-Verbal Cognitive Function in Post-Stroke Aphasia Based on Language-Cognition Neuropsychological Processing Model

Introduction: Post-stroke aphasia (PSA) patients have different levels of phonetic, lexical, semantic, syntactic, and other linguistic domain impairment, and accompanied by non-verbal cognitive impairment. However, the association between verbal and non-verbal cognitive functions is not fully understood.In this study, we used the Chinese Aphasia Language Battery (CALB) and Loewenstein Occupational Therapy Cognitive Assessment (LOTCA) to fully evaluate the characteristics of verbal and non-verbal cognitive function impairment in PSA patients. Methods: A total of 105 stroke patients were recruited in this study. Language and non-linguistic cognitive impairments were evaluated by CALB and LOTCA, respectively. Patients in the PSA group were subdivided into the fluent aphasia group (FAG) and the non-FAG group. Potential confounders were adjusted in the analysis of covariance. Partial correlation analysis between the subscores of CALB and LOTCA was also performed. Results: This study showed that PSA patients had worse speech analysis ability, vocabulary processing ability, semantic processing ability, syntactic structure conversion ability, and non-verbal cognitive performance(P&lt;0.001). Moreover, the scores of phonetic decoding, phonetic vocabulary production, noun category classification, total LOTCA, orientation, visual perception, motor use, and thinking operation were lower in the non-FAG compared with the FAG (p&lt;0.05). The total score of LOTCA was positively correlated with the aphasia quotient (r=0.637, P&lt;0.001) and scores of speech analysis ability, vocabulary processing ability, semantic processing ability, and syntactic structure conversion ability (r&gt;0; P&lt;0.0005). Conclusions: Based on the language-cognition neuropsychological processing model, this study adopted a comprehensive verbal and non-verbal cognitive assessment set of tests, and found that PSA patients have extensive phonological, lexical, semantic, syntactic, and grammatical processing disorders. Moreover, PSA patients often have more extensive and serious non-verbal cognitive impairments, and the severity of aphasia is significantly positively correlated with the degree of nonverbal cognitive impairment.

Discourse Task Type-Specific Linguistic Characteristics in Anomic Aphasia and Healthy Controls: Evidence From Mandarin-Chinese AphasiaBank.

This study was designed to examine the hypothesis that discourse task types influence language performance in Mandarin Chinese-speaking people and to reveal the discourse task-specific linguistic properties of persons with anomic aphasia compared to neurotypical controls. Language samples from persons with aphasia (n = 31) and age- and education-matched controls (n = 31) across four discourse tasks (sequential-picture description, single-picture description, story narrative, and procedural discourse) were collected from Mandarin AphasiaBank. Task-specific distributions of parts of speech were analyzed using mosaic plots. The main effects of tasks in each group and the between-group differences within each task for several typical linguistic variables were evaluated, including the mean length of utterance, tokens, moving-average type-token ratio, words per minute, propositional density, noun-verb ratio, noun percentage, and verb percentage. The results revealed an impact of discourse tasks on most language variables in both groups. In the healthy controls, story narratives yielded the highest total words and lowest verb percentage. In the aphasia group, procedural discourse elicited the fewest total words and densest expressions, whereas their single-picture descriptions had the highest noun-verb ratio. For all tasks, the aphasia group performed worse than the control group in the mean length of utterance, tokens, moving-average type-token ratio, and words per minute. For noun-verb ratio, noun percentage, and verb percentage, only one task (i.e., single-picture description) showed significant between-group differences. The selection of discourse tasks should be addressed in assessments and interventions for Mandarin Chinese-speaking individuals with aphasia to obtain more accurate and feasible outcomes.

Online Aphasia Groups: Navigating Issues of Voice and Identity.

Participation in aphasia groups is associated with increased communication, reduced feelings of social isolation, and increased quality of life. Despite the growing popularity of online aphasia groups, little is known about how to manage conversation in this format. We examined online aphasia book club sessions to examine how the facilitator supported group members' participation in conversation. Interactional sociolinguistic discourse analysis was used to analyze the behaviors and actions of the facilitator and group members. Qualitative data for this study were drawn from four recorded online aphasia book club sessions held through a university's free aphasia clinic on the Zoom web-conferencing platform. Sociolinguistic discourse analysis revealed strategic facilitator behaviors that served to (a) give members with varying levels of verbal language abilities voice, (b) foreground or background aspects of voice, and (c) minimize her own voice to promote interactional symmetry between herself and group members. Identity formed the backdrop for facilitators' actions when leading online groups, guiding decisions about who got to talk, when, for how long, through what modality, and about what topics. A better understanding of the interactions that occur online, such as how to develop and protect the identities of group members, could equip facilitators with the tools necessary for facilitating positive, engaging aphasia therapy groups online.

Nonlinguistic Cognitive Functions of Mandarin Speakers With Poststroke Aphasia.

The purpose of this study was to examine the cognitive functions of Mandarin speakers with poststroke aphasia and to investigate the relationship between nonlinguistic cognitive deficits and the severity of aphasia. Twenty-three adults with aphasia resulting from left-hemispheric stroke and 23 adults matched for age and educational level completed a series of six nonlinguistic cognitive tests measuring nonverbal intelligence, short-term memory, visual selective attention, visual alternating attention, auditory selective attention, and auditory alternating attention. A standardized aphasia assessment (Concise Chinese Aphasia Test [CCAT]) was also conducted to evaluate the severity of aphasia. Data analyses examined cognitive functions by comparing task performance of the two groups and examining the relationship between scores on the cognitive tasks and aphasia severity based on a hierarchical regression analysis. The aphasia group scored significantly lower than the control group on all nonlinguistic cognitive tasks with large effect sizes (d = 0.95 ~ 1.54). Significant associations between different nonlinguistic cognitive tasks and CCAT subtests were observed. Results from the hierarchical regression analysis showed that auditory alternating attention was the only factor that significantly predicted aphasia severity based on CCAT overall scores after age and education level were taken into account. The findings align with prior research observing deficits in nonlinguistic cognition in individuals with aphasia. Implications for clinical practice and future research are discussed.

Hearing symptom profiles in Alzheimer’s disease and frontotemporal dementia

AbstractBackgroundHearing loss has emerged as a marker of cognitive decline and potential treatment target in dementia, however the symptom profiles that characterise hearing impairment in different dementia syndromes are poorly characterised. Beyond sound detection, these diseases impair aspects of auditory perception that are crucial for communication in daily life. Here we addressed changes in everyday hearing function in Alzheimer’s disease and frontotemporal dementia syndromes, using standardised auditory symptom questionnaires completed by patients’ caregivers.MethodPrimary caregivers for patients with Alzheimer’s disease (n = 20), logopenic variant primary progressive aphasia (n = 8), nonfluent variant primary progressive aphasia (n = 13), semantic variant primary progressive aphasia (n = 13) and behavioural variant frontotemporal dementia (n = 18) completed the Hearing Impairment Impact – Significant Other Profile, adapted Amsterdam Inventory for Auditory Disability and Khalfa Hyperacusis questionnaires. The Amsterdam Inventory for Auditory Disability was also completed by 15 healthy age‐matched individuals. No participant had a past history of significant otological disease.ResultScores on the Hearing Impairment Impact – Significant Other Profile and Khalfa Hyperacusis Questionnaire respectively demonstrated greater carer burden and increased sensitivity to sound in the behavioural variant frontotemporal dementia group compared with the Alzheimer’s disease group. On the Amsterdam Inventory for Auditory Disability, multi‐domain hearing difficulties were endorsed for the behavioural variant frontotemporal dementia and primary progressive aphasia groups relative to healthy controls, and total scores in the logopenic and semantic variant primary progressive aphasia groups were significantly worse than both the healthy control and Alzheimer’s disease groups. Syndromic groups showed differentiable hearing profiles across hearing domains.ConclusionMajor dementia syndromes have distinct profiles of everyday hearing difficulty, and patients with frontotemporal dementia and progressive aphasia syndromes may have particularly marked (albeit often unrecognised) changes in their hearing. These findings should motivate the development of bespoke auditory tests to assess central hearing function and personalised hearing management strategies in these diseases.

“I Wasn’t Just Sitting There”: Empowering Care Partners through the Aphasia-Friendly Reading Approach

ABSTRACT Background Sharing stories is a way that people make meaning out of life and connect with others socially. For couples in which one person has aphasia, the ability to have conversations and share stories may be disrupted. Many people with aphasia benefit from support in constructing and sharing stories with others. To share experiences with his wife, the spouse of a person with aphasia developed an intervention approach called Aphasia-Friendly Reading that supports oral storytelling and sharing stories with others. Aim The current study explored the experiences of care partners in a pilot study using the Aphasia-Friendly Reading approach. Methods & Procedures Three people with aphasia and their care partners participated in the Aphasia-Friendly Reading pilot study one hour per week for 9 to 14 weeks. Following the pilot program, each care partner was interviewed about their experience participating in the study. Interview data was analysed using reflexive thematic analysis. Outcome & Results Three major themes were identified: (1) Care partner empowerment, (2) Collaboration, and (3) Different therapy experience. Care partners expressed that they were “totally involved” in all stages of the intervention and that they highly valued being involved. Further, care partners reported specific ways that they started taking initiative in supporting their partner with aphasia outside of the sessions. Care partners described the project as collaborative, noting the role of all participants in story co-construction and mentioning how they both taught and learned from graduate student clinicians. The care partners reported that the project was distinctly different from their previous therapy experiences, noting that they appreciated the person-centeredness of the stories, the fun of working together in sessions, and the opportunity to share their stories with the aphasia group. Conclusion The results indicated that the care partners experienced benefits of being actively included in the Aphasia-Friendly Reading approach. The approach appears to be harmonious with core values of the Life Participation Approach to Aphasia and research on the value of considering aphasia to be a family issue rather than an individual issue.

Cerebral perfusion in post-stroke aphasia and its relationship to residual language abilities.

Stroke alters blood flow to the brain resulting in damaged tissue and cell death. Moreover, the disruption of cerebral blood flow (perfusion) can be observed in areas surrounding and distal to the lesion. These structurally preserved but suboptimally perfused regions may also affect recovery. Thus, to better understand aphasia recovery, the relationship between cerebral perfusion and language needs to be systematically examined. In the current study, we aimed to evaluate (i) how stroke affects perfusion outside of lesioned areas in chronic aphasia and (ii) how perfusion in specific cortical areas and perilesional tissue relates to language outcomes in aphasia. We analysed perfusion data from a large sample of participants with chronic aphasia due to left hemisphere stroke (n = 43) and age-matched healthy controls (n = 25). We used anatomically defined regions of interest that covered the frontal, parietal, and temporal areas of the perisylvian cortex in both hemispheres, areas typically known to support language, along with several control regions not implicated in language processing. For the aphasia group, we also looked at three regions of interest in the perilesional tissue. We compared perfusion levels between the two groups and investigated the relationship between perfusion levels and language subtest scores while controlling for demographic and lesion variables. First, we observed that perfusion levels outside the lesioned areas were significantly reduced in frontal and parietal regions in the left hemisphere in people with aphasia compared to the control group, while no differences were observed for the right hemisphere regions. Second, we found that perfusion in the left temporal lobe (and most strongly in the posterior part of both superior and middle temporal gyri) and inferior parietal areas (supramarginal gyrus) was significantly related to residual expressive and receptive language abilities. In contrast, perfusion in the frontal regions did not show such a relationship; no relationship with language was also observed for perfusion levels in control areas and all right hemisphere regions. Third, perilesional perfusion was only marginally related to language production abilities. Cumulatively, the current findings demonstrate that blood flow is reduced beyond the lesion site in chronic aphasia and that hypoperfused neural tissue in critical temporoparietal language areas has a negative impact on behavioural outcomes. These results, using perfusion imaging, underscore the critical and general role that left hemisphere posterior temporal regions play in various expressive and receptive language abilities. Overall, the study highlights the importance of exploring perfusion measures in stroke.

Validity and reliability of the Thai Adaptation of Naming Test-Revised (TANT-Revised)

Background: The Thai Adaptation of Naming Test (TANT) is useful for assessing naming ability among Thais with naming deficits. However, the TANT was developed in 2004, meaning some words have become less common. Consequently, the TANT was revised for modernity and suitability for the current Thai cultural context and to measure the psychological properties. Objectives: To assess the validity and reliability of the Thai Adaptation of Naming Test-Revised (TANT-Revised). Materials and methods: The TANT was revised by adjusting certain items for suitability to the current Thai cultural context, consisting of 2 parts: Pictures of words and semantic cues. Subsequently, the TANT-Revised was assessed for content validity index (CVI), content validity for the item (I-CVI), and content validity Index for scale (S-CVI) test by five expert speech-language pathologists (SLPs). Afterward, the TANT-Revised was examined for test-retest reliability by intraclass correlation coefficient (ICC) in an aphasia group and a normal group, with 13 people per group. Results: The results of testing for the validity of TANT-Revised by expert SLPs revealed that the validity for pictures (CVI = 0.96, S-CVI = 0.99, and I-CVI = 1) and semantic cues (CVI = 0.95, S-CVI = 0.99, and I-CVI = 1) have high reliability in the normal group at 0.79 and the aphasia group at 0.96. Conclusion: This study assessed the psychological properties of the TANT-Revised instrument used to test naming ability. The validity of the revision test was high, and the TANT-Revised was deemed acceptable by experts. In addition, the test-retest reliability of TANT-Revised was high in both the normal and aphasia groups, implying the TANT-Revised is an efficient instrument for confrontation naming ability. However, this study was a preliminary test revision, and insufficient norm data and factors are affecting the test score.

Preliminary evidence comparing three auditory attention network tests in people with aphasia and matched controls

ABSTRACT Background The Attention Network Test (ANT) was initially developed to measure three types of attention, alerting attention, orienting attention, and executive control attention, using a single cued-flanker task. Its use has since been extended into the auditory modality where an auditory-spatial ANT revealed that auditory alerting and orienting attention were impaired in people with aphasia (PWA). However, there are a few limitations that may preclude the auditory-spatial ANT from future use with PWA. Aims The purpose of this study was to compare the ability of three auditory ANTs to measure alerting attention, orienting attention, and executive control attention in PWA and matched controls, with the final goal being to identify one task to refine in future studies. We hypothesized that all three tasks would measure alerting attention, orienting attention, and executive control attention in the control group. We further expected group differences such that the aphasia group would benefit less from the alerting and orienting cues, and experience greater executive control costs than the control group. Methods & Procedures Seventeen PWA and 20 matched controls completed three auditory ANTs. The auditory ANTs used the same cues to measure alerting attention and orienting attention, however they differed on the tasks used to measure executive control attention. Two executive control tasks were pitch discrimination tasks: participants decided if the target word (Auditory Stroop ANT) or tone (Auditory Pitch ANT) was high or low in pitch. The third executive control task was a temporal discrimination task: participants decided if the target tone was short or long in duration (Auditory Duration ANT). Outcomes & Results All three auditory ANTs measured executive control attention. However, only the Auditory Pitch and Duration ANTs measured alerting attention and no task measured orienting attention. Group and task also interacted within executive control attention; the Auditory Duration ANT was the only task to meaningfully distinguish the aphasia group’s executive control attention from the control groups’. Conclusions Our results suggest that the Auditory Duration ANT may have the greatest clinical utility of the three auditory ANTs trialed. However, further work is needed to optimize the Auditory Duration ANT for clinical use.

Acoustic and phonemic processing are impaired in individuals with aphasia

Acoustic and phonemic processing are understudied in aphasia, a language disorder that can affect different levels and modalities of language processing. For successful speech comprehension, processing of the speech envelope is necessary, which relates to amplitude changes over time (e.g., the rise times). Moreover, to identify speech sounds (i.e., phonemes), efficient processing of spectro-temporal changes as reflected in formant transitions is essential. Given the underrepresentation of aphasia studies on these aspects, we tested rise time processing and phoneme identification in 29 individuals with post-stroke aphasia and 23 healthy age-matched controls. We found significantly lower performance in the aphasia group than in the control group on both tasks, even when controlling for individual differences in hearing levels and cognitive functioning. Further, by conducting an individual deviance analysis, we found a low-level acoustic or phonemic processing impairment in 76% of individuals with aphasia. Additionally, we investigated whether this impairment would propagate to higher-level language processing and found that rise time processing predicts phonological processing performance in individuals with aphasia. These findings show that it is important to develop diagnostic and treatment tools that target low-level language processing mechanisms.