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1
Cortical microstructure in primary progressive aphasia: a multicenter study.
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
In: Brain Sciences; Volume 12; Issue 3; Pages: 378 (2022)
Abstract: The objective of this study was to characterize network-level changes in nonfluent/agrammatic Primary Progressive Aphasia (agPPA) and Primary Progressive Apraxia of Speech (PPAOS) with graph theory (GT) measures derived from scalp electroencephalography (EEG) recordings. EEGs of 15 agPPA and 7 PPAOS patients were collected during relaxed wakefulness with eyes closed (21 electrodes, 10–20 positions, 256 Hz sampling rate, 1–200 Hz bandpass filter). Eight artifact-free, non-overlapping 1024-point epochs were selected. Via Brainwave software, GT weighted connectivity and minimum spanning tree (MST) measures were calculated for theta and upper and lower alpha frequency bands. Differences in GT and MST measures between agPPA and PPAOS were assessed with Wilcoxon rank-sum tests. Of greatest interest, Spearman correlations were computed between behavioral and network measures in all frequency bands across all patients. There were no statistically significant differences in GT or MST measures between agPPA and PPAOS. There were significant correlations between several network and behavioral variables. The correlations demonstrate a relationship between reduced global efficiency and clinical symptom severity (e.g., parkinsonism, AOS). This preliminary, exploratory study demonstrates potential for EEG GT measures to quantify network changes associated with degenerative speech–language disorders.
Keyword: electroencephalography (EEG); graph theory; network analysis; primary progressive aphasia; progressive apraxia of speech
URL: https://doi.org/10.3390/brainsci12030378
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3
Primary and Secondary Progressive Aphasia in Posterior Cortical Atrophy
In: Life; Volume 12; Issue 5; Pages: 662 (2022)
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4
A 'Mini Linguistic State Examination' to classify primary progressive aphasia. ...
Patel, Nikil; Peterson, Katie A; Ingram, Ruth U. - : Apollo - University of Cambridge Repository, 2022
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5
A 'Mini Linguistic State Examination' to classify primary progressive aphasia. ...
Patel, Nikil; Peterson, Katie A; Ingram, Ruth U. - : Apollo - University of Cambridge Repository, 2022
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6
Improving the diagnostic accuracy of primary progressive aphasia using cognitive tests
Foxe, David Gordon. - : The University of Sydney, 2022. : Faculty of Science, School of Psychology, 2022
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7
Neural substrates of verbal repetition deficits in primary progressive aphasia.
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8
Resting functional connectivity in the semantic appraisal network predicts accuracy of emotion identification.
Yang, Winson FZ; Toller, Gianina; Shdo, Suzanne. - : eScholarship, University of California, 2021
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9
Neural dynamics of semantic categorization in semantic variant of primary progressive aphasia.
Borghesani, V; Dale, CL; Lukic, S. - : eScholarship, University of California, 2021
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10
Uniform data set language measures for bvFTD and PPA diagnosis and monitoring.
In: Alzheimer's & dementia (Amsterdam, Netherlands), vol 13, iss 1 (2021)
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11
Resting functional connectivity in the semantic appraisal network predicts accuracy of emotion identification.
Yang, Winson FZ; Toller, Gianina; Shdo, Suzanne. - : eScholarship, University of California, 2021
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12
What Do We Mean by Behavioral Disinhibition in Frontotemporal Dementia?
Magrath Guimet, Nahuel; Miller, Bruce L; Allegri, Ricardo F. - : eScholarship, University of California, 2021
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13
Uniform data set language measures for bvFTD and PPA diagnosis and monitoring.
In: Alzheimer's & dementia (Amsterdam, Netherlands), vol 13, iss 1 (2021)
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14
What Do We Mean by Behavioral Disinhibition in Frontotemporal Dementia?
Magrath Guimet, Nahuel; Miller, Bruce L; Allegri, Ricardo F. - : eScholarship, University of California, 2021
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15
Primary Progressive Aphasia: Use of Graphical Markers for an Early and Differential Diagnosis
In: Brain Sciences ; Volume 11 ; Issue 9 (2021)
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16
Survival in the Three Common Variants of Primary Progressive Aphasia: A Retrospective Study in a Tertiary Memory Clinic
In: Brain Sciences ; Volume 11 ; Issue 9 (2021)
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17
Application of Machine Learning to Electroencephalography for the Diagnosis of Primary Progressive Aphasia: A Pilot Study
In: Brain Sciences ; Volume 11 ; Issue 10 (2021)
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18
Longitudinal Changes in Cognition, Behaviours, and Functional Abilities in the Three Main Variants of Primary Progressive Aphasia: A Literature Review
In: Brain Sciences ; Volume 11 ; Issue 9 (2021)
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19
Verbal Short-Term Memory Disturbance in the Primary Progressive Aphasias: Challenges and Distinctions in a Clinical Setting
In: Brain Sciences ; Volume 11 ; Issue 8 (2021)
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20
Treatment for Anomia in Bilingual Speakers with Progressive Aphasia
In: Brain Sciences ; Volume 11 ; Issue 11 (2021)
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