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Aphasia profiles and trajectories in acute ischemic stroke: An observational study.
J Stroke Cerebrovasc Dis
January 2025
Stroke Center, Neurology Service, Department of Clinical Neurosciences, Lausanne University Hospital and University of Lausanne, Rue du Bugnon 46, 1011 Lausanne, Switzerland.
Article Synopsis
- In a study of acute ischemic stroke (AIS) patients with pure aphasia, researchers analyzed the short-term course and predictors of persistent aphasia and functional outcomes.
- Out of 4513 AIS patients, only 131 had pure aphasia, and among those, 28.4% continued to experience significant aphasia in the subacute phase.
- Factors like stroke mechanism (cardioembolic or atheromatous) and executive function deficits predicted persistent aphasia, while being female and having ongoing aphasia were linked to poorer outcomes at 3 months.
An international core outcome set for primary progressive aphasia (COS-PPA): Consensus-based recommendations for communication interventions across research and clinical settings.
Alzheimers Dement
November 2024
Dementia Research Centre, Department of Neurodegenrative Disease, UCL Queen Square Institute of Neurology, University College London, London, UK.
Introduction: Interventions to treat speech-language difficulties in primary progressive aphasia (PPA) often use word accuracy as a highly comparable outcome. However, there are more constructs of importance to people with PPA that have received less attention.
Methods: Following Core Outcome Set Standards for Development Recommendations (COSSTAD), this study comprised: Stage 1 - systematic review to identify measures; Stage 2 - consensus groups to identify important outcome constructs for people with PPA (n = 82) and care partners (n = 91); Stage 3 - e-Delphi consensus with 57 researchers.
Perceptual and semantic deficits in face recognition in semantic dementia.
Neuropsychologia
December 2024
Memory & Aging Center, Department of Neurology, University of California in San Francisco, 1651 4th St, San Francisco, CA, 94158, United States; Douglas Research Centre & Department of Psychiatry, McGill University, 6875 Boulevard LaSalle, Montréal, QC, Canada, H4H 1R3. Electronic address:
Article Synopsis
- Semantic dementia (SD) patients, particularly those with semantic variant primary progressive aphasia (svPPA) and semantic behavioral variant frontotemporal dementia (sbvFTD), exhibit challenges in identifying faces due to atrophy in the anterior temporal lobe (ATL).
- The study involved 74 SD patients and 36 healthy controls, who underwent various face recognition and semantic processing tests, alongside structural MRI scans to assess neural correlates.
- Findings indicated that while both patient groups struggled with semantic face tasks, they performed similarly on perceptual face tests, suggesting that perceptual deficits may not arise until later stages of the disease with more extensive ATL atrophy.
Rehabilitation Therapy Doses Are Low After Stroke and Predicted by Clinical Factors.
Stroke
March 2023
Department of Neurology, University of California, Los Angeles (B.M.Y., S.C.C.).
Background: Stroke is a leading cause of long-term disability. Greater rehabilitation therapy after stroke is known to improve functional outcomes. This study examined therapy doses during the first year of stroke recovery and identified factors that predict rehabilitation therapy dose.
View Article and Find Full Text PDFEnhanced positive emotional reactivity in frontotemporal dementia reflects left-lateralized atrophy in the temporal and frontal lobes.
Cortex
September 2022
Memory and Aging Center, Department of Neurology, University of California, San Francisco, San Francisco, CA, USA; Department of Psychiatry and Behavioral Sciences, University of California, San Francisco, San Francisco, CA, USA. Electronic address:
In frontotemporal dementia (FTD), left-lateralized atrophy patterns have been associated with elevations in certain positive emotions. Here, we investigated whether positive emotional reactivity was enhanced in semantic variant primary progressive aphasia (svPPA), an FTD syndrome that targets the left anterior temporal lobe. Sixty-one participants (16 people with svPPA, 24 people with behavioral variant FTD, and 21 healthy controls) viewed six 90-sec trials that were comprised of a series of photographs; each trial was designed to elicit a specific positive emotion, negative emotion, or no emotion.
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