Update in Aphasia Research

Tippett, Donna C.

doi:10.1007/s11910-015-0573-x

Cited by 16 publications

(9 citation statements)

References 87 publications

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“…Aphasia, an acquired language disorder, is a common consequence of stroke, which significantly affects the individual's life such as relationships, social engagement, and independence. [4,5] It is estimated that about 25% to 40% of stroke survivors acquire aphasia. [6,7] The presence of aphasia is associated with increased length of stay, general decreased response to stroke rehabilitation interventions and an increased risk for mortality.…”

Section: Introductionmentioning

confidence: 99%

Assessment of the quality and content of clinical practice guidelines for post-stroke rehabilitation of aphasia

Wang

et al. 2019

Medicine

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Section: Introductionmentioning

confidence: 99%

Assessment of the quality and content of clinical practice guidelines for post-stroke rehabilitation of aphasia

Wang

et al. 2019

Medicine

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“…[ 22 ] The sequelae of post-stroke aphasia are considerable, with implications at the social and personal levels. [ 23 ] Because of communication deficits, aphasic patients complain of difficulties in benefiting from available mental health services, participating in intervention programs, and/or finding support groups that could meet their needs. [ 24 ]…”

Section: Discussionmentioning

confidence: 99%

Development and application of a Chinese Version of the Language Screening Test (CLAST) in post-stroke patients

et al. 2020

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Aphasia shows high incidence in stroke patients and seriously impairs language comprehension, verbal communication, and social activities. Therefore, screening aphasic patients during the acute phase of stroke is crucial for language recovery and rehabilitation. The present study developed a Chinese version of the Language Screening Test (CLAST) and validated it in post-stroke patients. The CLAST was adapted from the Language Screening Test developed by Constance et al to incorporate Chinese cultural and linguistic specificities, and administered to 207 acute stroke patients and 89 stabilized aphasic or non-aphasic patients. Based on the Western Aphasia Battery (WAB) test, its reliability and validity were assessed. A cut-off for the CLAST in Chinese patients was determined by ROC curve analysis. The CLAST comprised 5 subtests and 15 items, including 2 subscores, namely expression (8 points, assessing naming, repetition, and automatic speech) and receptive (7 points maximum, evaluating picture recognition, and verbal instructions) indexes. Analysis of the alternate-form reliability of the questionnaire showed a retest correlation coefficient of 0.945 ( P < .001). Intraclass correlation coefficients of three rating teams were >0.98 ( P < .001). Internal consistency analysis showed a Cronbach's alpha coefficient of 0.909 ( P < .001). The non-aphasia group showed higher scores than the aphasia group (14.2 ± 1.3 vs 10.6 ± 3.8) ( P < .01). The questionnaire showed good construct validity by factor analysis. ROC curve analysis showed high sensitivity and specificity for the CLAST, with a cut-off of 13.5. The CLAST is suitable for Chinese post-stroke patients during the acute phase, with high reliability, validity, sensitivity, and specificity.

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“…Most of the studies focus on very similar outcome measures, such as improvement on naming accuracy (e.g., Baker et al, 2010; Vestito et al, 2014; Shah-Basak et al, 2015). To date, functional outcomes measures are not included in tDCS research, although this is a vital aspect of evidence-based aphasia therapy (Tippett, 2015). …”

Section: Tdcs In Aphasia Researchmentioning

confidence: 99%

Transcranial direct current stimulation in post stroke aphasia and primary progressive aphasia: Current knowledge and future clinical applications

Sebastian

Tsapkini

Tippett

2016

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BACKGROUND The application of transcranial direct current stimulation (tDCS) in chronic post stroke aphasia is documented in a substantial literature, and there is some new evidence that tDCS can augment favorable language outcomes in primary progressive aphasia. Anodal tDCS is most often applied to the left hemisphere language areas to increase cortical excitability (increase the threshold of activation) and cathodal tDCS is most often applied to the right hemisphere homotopic areas to inhibit over activation in contralesional right homologues of language areas. Outcomes usually are based on neuropsychological and language test performance, following a medical model which emphasizes impairment of function, rather than a model which emphasizes functional communication. OBJECTIVE In this paper, we review current literature of tDCS as it is being used as a research tool, and discuss future implementation of tDCS as an adjuvant treatment to behavioral speech-language pathology intervention. METHODS We review literature describing non-invasive brain stimulation, the mechanism of tDCS, and studies of tDCS in aphasia and neurodegenerative disorders. We discuss future clinical applications. RESULTS/CONCLUSIONS tDCS is a promising adjunct to traditional speech-language pathology intervention to address speech-language deficits after stroke and in the neurodegenerative disease, primary progressive aphasia. Limited data are available regarding how performance on these types of specific tasks translates to functional communication outcomes.

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Update in Aphasia Research

Cited by 16 publications

References 87 publications

Assessment of the quality and content of clinical practice guidelines for post-stroke rehabilitation of aphasia

Assessment of the quality and content of clinical practice guidelines for post-stroke rehabilitation of aphasia

Development and application of a Chinese Version of the Language Screening Test (CLAST) in post-stroke patients

Transcranial direct current stimulation in post stroke aphasia and primary progressive aphasia: Current knowledge and future clinical applications

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