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American Journal of Speech-language... Sep 2021Purpose Speech-language pathologists (SLPs) who work with people with aphasia focus on assessment and intervention to support improved communication outcomes for their...
Purpose Speech-language pathologists (SLPs) who work with people with aphasia focus on assessment and intervention to support improved communication outcomes for their clients. Friendship, a key component of quality of life, often depends on communicative interaction, and many people with aphasia report having reduced social circles. The purpose of this study was to explore the perceptions of SLPs working with clients with aphasia on their role in supporting friendship development and maintenance. Method An online survey composed of questions addressing SLP perspectives and goal setting, assessment, and treatment practices related to aphasia and friendship was distributed to SLPs across the United States. Survey data were analyzed using both quantitative and qualitative methods. Results Forty-seven SLPs completed the survey. While many SLPs reported that the friendships of their clients with aphasia were impacted by aphasia and that it was within their scope of practice to support friendship development and maintenance, many did not specifically assess or target friendship and friendship outcomes in the treatment plan. SLPs identified barriers and facilitators to focusing on friendship within the context of speech and language therapy. Conclusions Findings suggest the majority of participating SLPs were interested in addressing friendship with clients with aphasia; however, they experienced barriers in practice. Further examination of SLP perspectives and clinical practice regarding friendship and aphasia is warranted. Additionally, research investigating effective assessment and therapeutic methods that target friendship in aphasia is needed to support clinical practice and the well-being of clients with aphasia. Supplemental Material https://doi.org/10.23641/asha.15032217.
Topics: Aphasia; Friends; Humans; Pathologists; Quality of Life; Speech; Speech-Language Pathology; United States
PubMed: 34310195
DOI: 10.1044/2021_AJSLP-20-00370 -
Restorative Neurology and Neuroscience Apr 2016The functional deficit after a focal brain lesion is determined by the localization and the extent of the tissue damage. Since destroyed tissue usually cannot be... (Review)
Review
The functional deficit after a focal brain lesion is determined by the localization and the extent of the tissue damage. Since destroyed tissue usually cannot be replaced in the adult human brain, improvement or recovery of neurological deficits can be achieved only by reactivation of functionally disturbed but morphologically preserved areas or by recruitment of alternative pathways within the functional network. The visualization of disturbed interaction in functional networks and of their reorganization in the recovery after focal brain damage is the domain of functional imaging modalities such as positron emission tomography (PET). Longitudinal assessments at rest and during activation tasks during the early and later periods following a stroke can demonstrate recruitment and compensatory mechanisms in the functional network responsible for complete or partial recovery of disturbed functions. Imaging studies have shown that improvements after focal cortical injury are represented over larger cortical territories. It has also been shown that the unaffected hemisphere in some instances actually inhibits the recovery of ipsilateral functional networks and this effect of transcallosal inhibition can be reduced by non-invasive brain stimutation. Non-invasive brain stimulation (NIBS) can modulate the excitability and activity of targeted cortical regions and thereby alter the interaction within pathologically affected functional networks; this kind of intervention might promote the adaptive cortical reorganization of functional networks after stroke. In poststroke aphasia several studies attempted to restore perilesional neuronal activity in the injured left inferior frontal gyrus by applying excitatory high frequency repetitive transcranial magnetic stimulation (rTMS) or intermittent theta burst stimulation (iTBS) or anodal transcranial direct current stimulation (tDCS), but most NIBS studies in poststroke aphasia employed inhibitory low frequency rTMS for stimulation of the contralesional pars triangularis of the right inferior frontal gyrus (BA 45) in order to reduce right hemisphere hyperactivity and transcallosal inhibition on the left Broca's area. While most studies reported single cases or small case series with chronic poststroke aphasia without any control condition, only a few controlled studies including sham stimulation were performed in chronic stage after stroke. In one controlled randomized study changes in PET activation pattern in the subacute course were related to the clinical improvement. In this "proof-of-principle" study the shift of the activation pattern to the dominant hemisphere induced by inhibitory rTMS over the right inferior frontal gyrus could be demonstrated in the PET activation studies and correlated to improved performance in aphasia tests. NIBS might be a treatment strategy which could improve the effect of other rehabilitative efforts.
Topics: Aphasia; Cerebral Cortex; Humans; Stroke; Transcranial Magnetic Stimulation
PubMed: 27080074
DOI: 10.3233/RNN-150631 -
Revue Medicale Suisse Apr 2023Post-stroke aphasia recovery is multifactorial and results from a complex equation between four types of interrelated factors : a) neurobiological factors, such as...
Post-stroke aphasia recovery is multifactorial and results from a complex equation between four types of interrelated factors : a) neurobiological factors, such as lesion size and location, but also to some extent the neural reserve in undamaged brain areas ; b) behavioral factors, mostly related to the initial severity of stroke symptoms ; c) personal factors, such as age and gender, that remain however poorly investigated and debated and d) therapeutic factors, related to medical endovascular interventions and to speech and language therapy. Future studies are crucial to determine more precisely the weight and the interaction of these factors in the recovery process of post-stroke aphasia.
Topics: Humans; Aphasia; Stroke; Brain; Speech Therapy; Recovery of Function
PubMed: 37133946
DOI: 10.53738/REVMED.2023.19.824.825 -
Neuropsychological Rehabilitation Sep 2018Exploring generalisation following treatment of language deficits in aphasia can provide insights into the functional relation of the cognitive processing systems... (Review)
Review
Exploring generalisation following treatment of language deficits in aphasia can provide insights into the functional relation of the cognitive processing systems involved. In the present study, we first review treatment outcomes of interventions targeting sentence processing deficits and, second report a treatment study examining the occurrence of practice effects and generalisation in sentence comprehension and production. In order to explore the potential linkage between processing systems involved in comprehending and producing sentences, we investigated whether improvements generalise within (i.e., uni-modal generalisation in comprehension or in production) and/or across modalities (i.e., cross-modal generalisation from comprehension to production or vice versa). Two individuals with aphasia displaying co-occurring deficits in sentence comprehension and production were trained on complex, non-canonical sentences in both modalities. Two evidence-based treatment protocols were applied in a crossover intervention study with sequence of treatment phases being randomly allocated. Both participants benefited significantly from treatment, leading to uni-modal generalisation in both comprehension and production. However, cross-modal generalisation did not occur. The magnitude of uni-modal generalisation in sentence production was related to participants' sentence comprehension performance prior to treatment. These findings support the assumption of modality-specific sub-systems for sentence comprehension and production, being linked uni-directionally from comprehension to production.
Topics: Animals; Aphasia; Comprehension; Female; Generalization, Psychological; Humans; Language; Male
PubMed: 27610543
DOI: 10.1080/09602011.2016.1213176 -
Annals of the New York Academy of... Apr 2016Is thought possible without language? Individuals with global aphasia, who have almost no ability to understand or produce language, provide a powerful opportunity to... (Review)
Review
Is thought possible without language? Individuals with global aphasia, who have almost no ability to understand or produce language, provide a powerful opportunity to find out. Surprisingly, despite their near-total loss of language, these individuals are nonetheless able to add and subtract, solve logic problems, think about another person's thoughts, appreciate music, and successfully navigate their environments. Further, neuroimaging studies show that healthy adults strongly engage the brain's language areas when they understand a sentence, but not when they perform other nonlinguistic tasks such as arithmetic, storing information in working memory, inhibiting prepotent responses, or listening to music. Together, these two complementary lines of evidence provide a clear answer: many aspects of thought engage distinct brain regions from, and do not depend on, language.
Topics: Aphasia; Brain; Cognition; Functional Neuroimaging; Humans; Language; Thinking
PubMed: 27096882
DOI: 10.1111/nyas.13046 -
Brain and Language Nov 2023Studies on the efficacy of language treatment for multilingual people with post-stroke aphasia and its generalization to untreated languages have produced mixed results.... (Meta-Analysis)
Meta-Analysis Review
Studies on the efficacy of language treatment for multilingual people with post-stroke aphasia and its generalization to untreated languages have produced mixed results. We conducted a systematic review and a meta-analysis to examine within- and cross-language treatment effects and the variables that affect them. We searched PubMed, PsycINFO, CINAHL, and Google Scholar (February 2020; January 2023), identifying 40 studies reporting on 1573 effect sizes from 85 individuals. We synthesized effect sizes for treatment outcomes using a multi-level model to correct for multiple observations from the same individuals. The results showed significant treatment effects, with robust within-language treatment effects and weaker cross-language treatment effects. Age of language acquisition of the treatment language predicted within-language and cross-language effects. Our results suggest that treating multilingual people with aphasia in one language may generalize to their other languages, especially following treatment in an early-acquired language and a later-learned language that became the language of immersion.
Topics: Humans; Language; Aphasia; Multilingualism; Language Development; Treatment Outcome
PubMed: 37994828
DOI: 10.1016/j.bandl.2023.105326 -
PloS One 2018Accurate aphasia diagnosis is important in stroke care. A wide range of language tests are available and include informal assessments, tests developed by healthcare... (Review)
Review
BACKGROUND AND PURPOSE
Accurate aphasia diagnosis is important in stroke care. A wide range of language tests are available and include informal assessments, tests developed by healthcare institutions and commercially published tests available for purchase in pre-packaged kits. The psychometrics of these tests are often reported online or within the purchased test manuals, not the peer-reviewed literature, therefore the diagnostic capabilities of these measures have not been systematically evaluated. This review aimed to identify both commercial and non-commercial language tests and tests used in stroke care and to examine the diagnostic capabilities of all identified measures in diagnosing aphasia in stroke populations.
METHODS
Language tests were identified through a systematic search of 161 publisher databases, professional and resource websites and language tests reported to be used in stroke care. Two independent reviewers evaluated test manuals or associated resources for cohort or cross-sectional studies reporting the tests' diagnostic capabilities (sensitivity, specificity, likelihood ratios or diagnostic odds ratios) in differentiating aphasic and non-aphasic stroke populations.
RESULTS
Fifty-six tests met the study eligibility criteria. Six "non-specialist" brief screening tests reported sensitivity and specificity information, however none of these measures reported to meet the specific diagnostic needs of speech pathologists. The 50 remaining measures either did not report validity data (n = 7); did not compare patient test performance with a comparison group (n = 17); included non-stroke participants within their samples (n = 23) or did not compare stroke patient performance against a language reference standard (n = 3). Diagnostic sensitivity analysis was completed for six speech pathology measures (WAB, PICA, CADL-2, ASHA-FACS, Adult FAVRES and EFA-4), however all studies compared aphasic performance with that of non-stroke healthy controls and were consequently excluded from the review.
CONCLUSIONS
No speech pathology test was found which reported diagnostic data for identifying aphasia in stroke populations. A diagnostically validated post-stroke aphasia test is needed.
Topics: Aphasia; Humans; Language Tests; Stroke
PubMed: 29566043
DOI: 10.1371/journal.pone.0194143 -
International Journal of Stroke :... Oct 2023Aphasia is a common consequence of stroke, and people who live with this condition experience poor outcomes. Adherence to clinical practice guidelines can promote... (Review)
Review
BACKGROUND
Aphasia is a common consequence of stroke, and people who live with this condition experience poor outcomes. Adherence to clinical practice guidelines can promote high-quality service delivery and optimize patient outcomes. However, there are currently no high-quality guidelines specific to post-stroke aphasia management.
AIMS
To identify and evaluate recommendations from high-quality stroke guidelines that can inform aphasia management.
SUMMARY OF REVIEW
We conducted an updated systematic review in accordance with PRISMA guidelines to identify high-quality clinical guidelines published between January 2015 and October 2022. Primary searches were performed using electronic databases: PubMed, EMBASE, CINAHL, and Web of Science. Gray literature searches were conducted using Google Scholar, guideline databases, and stroke websites. Clinical practice guidelines were evaluated using the Appraisal of Guidelines and Research and Evaluation (AGREE II) tool. Recommendations were extracted from high-quality guidelines (scored > 66.7% on Domain 3: "Rigor of Development"), classified as aphasia-specific or aphasia-related, and categorized into clinical practice areas. Evidence ratings and source citations were assessed, and similar recommendations were grouped. Twenty-three stroke clinical practice guidelines were identified and 9 (39%) met our criteria for rigor of development. From these guidelines, 82 recommendations for aphasia management were extracted: 31 were aphasia-specific, 51 aphasia-related, 67 evidence-based, and 15 consensus-based.
CONCLUSION
More than half of stroke clinical practice guidelines identified did not meet our criteria for rigorous development. We identified 9 high-quality guidelines and 82 recommendations to inform aphasia management. Most recommendations were aphasia-related; aphasia-specific recommendation gaps were identified in three clinical practice areas: "accessing community supports," "return to work, leisure, driving," and "interprofessional practice."
Topics: Humans; Stroke; Aphasia; Databases, Factual; PubMed; Consensus
PubMed: 36803248
DOI: 10.1177/17474930231161454 -
Wiley Interdisciplinary Reviews.... 2016There is increasing evidence that a bilingual person should not be considered as two monolinguals in a single body, a view that has gradually been adopted in the... (Review)
Review
There is increasing evidence that a bilingual person should not be considered as two monolinguals in a single body, a view that has gradually been adopted in the diagnosis and treatment of bilingual aphasia. However, its investigation is complicated due to the large variety in possible language combinations, pre- and postmorbid language proficiencies, and age of second language acquisition. Furthermore, the tests and tasks used to assess linguistic capabilities differ in almost every study, hindering a direct comparison of their outcomes. Behavioral, electrophysiological, and neuroimaging data from healthy population show that the processing of second language domains (semantics, syntax, morphology) depends on factors such as age and method of acquisition, proficiency level and environment in which the second language was acquired. A number of single and multiple case reports that rely on behavioral testing of bilingual aphasics replicate these results. Additionally, they show that the patient's performance depends on the size and location of the lesion, as well as language typology and morphological characteristics. Furthermore, the impairment and recovery patterns and recovery generalization from treated to untreated language depend on the lexical and orthographic distances between the two languages. For healthy bilinguals, language processing is usually studied in comparison to monolinguals. We advocate that a good starting point for identifying patterns specific for bilingual aphasia is to compare patient studies of bilinguals and monolinguals.
Topics: Aphasia; Humans; Linguistics; Multilingualism; Semantics
PubMed: 26990465
DOI: 10.1002/wcs.1384 -
American Journal of Speech-language... Nov 2021Purpose The purpose of this tutorial is to provide an overview of mental health concerns of persons with aphasia (PWAs), strategies that speech-language pathologists... (Review)
Review
Purpose The purpose of this tutorial is to provide an overview of mental health concerns of persons with aphasia (PWAs), strategies that speech-language pathologists (SLPs) can use to address the mental health concerns of PWAs within their scope of practice, guidance related to how SLPs can help facilitate access to appropriate mental health services, and suggestions for the future of pre- and postcertification education regarding counseling in aphasia for SLPs. Method This tutorial begins with a case study that is used as a reference point throughout the tutorial. It then introduces the gap in mental health services for PWAs that prompted this work, walks SLPs through common mental health concerns PWAs experience, and provides guidance for SLPs related to counseling techniques they can utilize within their sessions and referral to counseling professionals. We end by reiterating the need for more mental health awareness and training for SLPs and suggestions for incorporating more training related to addressing client mental health concerns and developing effective collaborations with rehabilitation and mental health counselors, as needed. Conclusions The mental health needs of PWAs are not being met. This is partly due to a lack of training in counseling for SLPs and a lack of training in communication techniques for rehabilitation and mental health counselors. With this tutorial, we hope to bring more awareness to the current need for mental health services for PWAs and to provide SLPs with some tools for addressing these needs among their clientele.
Topics: Aphasia; Counseling; Humans; Pathologists; Speech; Speech-Language Pathology
PubMed: 34499847
DOI: 10.1044/2021_AJSLP-20-00312