Journal
NEUROPSYCHOLOGICAL REHABILITATION
Volume 32, Issue 2, Pages 306-335Publisher
ROUTLEDGE JOURNALS, TAYLOR & FRANCIS LTD
DOI: 10.1080/09602011.2020.1822188
Keywords
Primary progressive aphasia; Hearing loss; Script training; Treatment; Single-case experimental design
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Funding
- NIH/NIDCD [R01DC016291, R03DC013403]
- Darrell K Royal Research Fund for Alzheimer's Disease
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This study investigates the effectiveness of modified Video Implemented Script Training for Aphasia (VISTA) on an individual with primary progressive aphasia and hearing loss. The results show positive outcomes in script production accuracy, speech intelligibility, and other measurements, with the effects maintained during follow-up assessments.
Speech-language pathology caseloads often include individuals with hearing loss and a coexisting neurogenic communication disorder. However, specific treatment techniques and modifications designed to accommodate this population are understudied. Using a single-case experimental design, the current study investigated the utility of modified Video Implemented Script Training for Aphasia (VISTA) for an individual with nonfluent/agrammatic variant primary progressive aphasia and severe-to-profound, bilateral hearing loss. We analyzed the impact of this intervention, which incorporates orthographic input and rehearsal, on script production accuracy, speech intelligibility, grammatical complexity, mean length of utterance, and speech rate. Treatment resulted in comparable positive outcomes relative to a previous study evaluating script training in nonfluent/agrammatic primary progressive aphasia patients with functional hearing. Follow-up data obtained at three months, six months, and one year post-treatment confirmed maintenance of treatment effects for trained scripts. To our knowledge, this is the first study to investigate a modified speech-language intervention tailored to the needs of an individual with PPA and hearing loss, with findings confirming that simple treatment modifications may serve to broaden the range of treatment options available to those with concomitant sensory and communication impairments.
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