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Cortical microstructure in primary progressive aphasia: a multicenter study.
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In: Alzheimer's research & therapy, vol 14, iss 1 (2022)
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| 2 |
A Preliminary Report of Network Electroencephalographic Measures in Primary Progressive Apraxia of Speech and Aphasia
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In: Brain Sciences; Volume 12; Issue 3; Pages: 378 (2022)
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| 3 |
Primary and Secondary Progressive Aphasia in Posterior Cortical Atrophy
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In: Life; Volume 12; Issue 5; Pages: 662 (2022)
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| 4 |
Imaging Clinical Subtypes and Associated Brain Networks in Alzheimer’s Disease
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In: Brain Sciences; Volume 12; Issue 2; Pages: 146 (2022)
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A 'Mini Linguistic State Examination' to classify primary progressive aphasia. ...
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| 6 |
A 'Mini Linguistic State Examination' to classify primary progressive aphasia. ...
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| 7 |
Improving the diagnostic accuracy of primary progressive aphasia using cognitive tests
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Foxe, David Gordon. - : The University of Sydney, 2022. : Faculty of Science, School of Psychology, 2022
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| 8 |
Neural substrates of verbal repetition deficits in primary progressive aphasia.
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| 9 |
Resting functional connectivity in the semantic appraisal network predicts accuracy of emotion identification.
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| 10 |
Neural dynamics of semantic categorization in semantic variant of primary progressive aphasia.
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Borghesani, V; Dale, CL; Lukic, S; Hinkley, Lbn; Lauricella, M; Shwe, W; Mizuiri, D; Honma, S; Miller, Z; Miller, B; Houde, JF; Gorno-Tempini, ML; Nagarajan, SS. - : eScholarship, University of California, 2021
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Abstract:
Semantic representations are processed along a posterior-to-anterior gradient reflecting a shift from perceptual (e.g., it has eight legs) to conceptual (e.g., venomous spiders are rare) information. One critical region is the anterior temporal lobe (ATL): patients with semantic variant primary progressive aphasia (svPPA), a clinical syndrome associated with ATL neurodegeneration, manifest a deep loss of semantic knowledge. We test the hypothesis that svPPA patients perform semantic tasks by over-recruiting areas implicated in perceptual processing. We compared MEG recordings of svPPA patients and healthy controls during a categorization task. While behavioral performance did not differ, svPPA patients showed indications of greater activation over bilateral occipital cortices and superior temporal gyrus, and inconsistent engagement of frontal regions. These findings suggest a pervasive reorganization of brain networks in response to ATL neurodegeneration: the loss of this critical hub leads to a dysregulated (semantic) control system, and defective semantic representations are seemingly compensated via enhanced perceptual processing.
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Keyword:
2.1 Biological and endogenous factors; Aged; anterior temporal lobe; Aphasia; Basic Behavioral and Social Science; Behavioral and Social Science; Biochemistry and Cell Biology; Brain Disorders; Clinical Research; Female; human; Humans; magnetoencephalography; Male; Mental Health; Middle Aged; Nerve Degeneration; Neurons; neuroscience; Neurosciences; Primary Progressive; primary progressive aphasia; semantic categorization; semantic dementia; semantic variant ppa; Semantics; Temporal Lobe
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URL: https://escholarship.org/uc/item/6s23q3d9
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| 11 |
Uniform data set language measures for bvFTD and PPA diagnosis and monitoring.
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In: Alzheimer's & dementia (Amsterdam, Netherlands), vol 13, iss 1 (2021)
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| 12 |
Resting functional connectivity in the semantic appraisal network predicts accuracy of emotion identification.
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| 13 |
What Do We Mean by Behavioral Disinhibition in Frontotemporal Dementia?
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| 14 |
Uniform data set language measures for bvFTD and PPA diagnosis and monitoring.
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In: Alzheimer's & dementia (Amsterdam, Netherlands), vol 13, iss 1 (2021)
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| 15 |
What Do We Mean by Behavioral Disinhibition in Frontotemporal Dementia?
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| 16 |
Primary Progressive Aphasia: Use of Graphical Markers for an Early and Differential Diagnosis
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In: Brain Sciences ; Volume 11 ; Issue 9 (2021)
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| 17 |
Survival in the Three Common Variants of Primary Progressive Aphasia: A Retrospective Study in a Tertiary Memory Clinic
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In: Brain Sciences ; Volume 11 ; Issue 9 (2021)
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| 18 |
Application of Machine Learning to Electroencephalography for the Diagnosis of Primary Progressive Aphasia: A Pilot Study
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In: Brain Sciences ; Volume 11 ; Issue 10 (2021)
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| 19 |
Longitudinal Changes in Cognition, Behaviours, and Functional Abilities in the Three Main Variants of Primary Progressive Aphasia: A Literature Review
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In: Brain Sciences ; Volume 11 ; Issue 9 (2021)
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| 20 |
Verbal Short-Term Memory Disturbance in the Primary Progressive Aphasias: Challenges and Distinctions in a Clinical Setting
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In: Brain Sciences ; Volume 11 ; Issue 8 (2021)
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