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What's "up"? Impaired Spatial Preposition Processing in Posterior Cortical Atrophy.
Shebani, Zubaida; Nestor, Peter J; Pulvermüller, Friedemann. - : Frontiers Media SA, 2022. : Front Hum Neurosci, 2022
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What's "up"? Impaired Spatial Preposition Processing in Posterior Cortical Atrophy. ...
Shebani, Zubaida; Nestor, Peter J; Pulvermüller, Friedemann. - : Apollo - University of Cambridge Repository, 2021
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3
What’s “up”? Impaired Spatial Preposition Processing in Posterior Cortical Atrophy
In: Front Hum Neurosci (2021)
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4
The atrophy pattern in Alzheimer-related PPA is more widespread than that of the frontotemporal lobar degeneration associated variants
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5
The concept of regularization: resolving the problem of surface dyslexia in semantic variant primary progressive aphasia across different languages
Billette, Ornella V.; Preib, Daniel; Nestor, Peter J.. - : American Psychological Association, 2019
Abstract: Surface dyslexia, a diagnostic feature of the semantic variant of primary progressive aphasia (svPPA), is difficult to observe in many languages. It can be conceptualized as one manifestation of a more general "regularization" effect-that is, with semantic impairment, patients fail to recognize exceptions and revert to default rules. Objective: We predicted that, analogous to surface dyslexia in English, German patients with svPPA would regularize irregular verbs, especially those of lower frequency and in the less frequently used preterite tense. Method: Regularization was investigated in German through past-tense verb inflectional morphology in N = 10 svPPA, N = 5 PPA related to Alzheimer pathology (Aβ+PPA), N = 5 patients with nonfluent variant PPA (nfvPPA), N = 12 typical (amnestic presentation) Alzheimer's disease (AD), and N = 32 healthy controls. The task involved perfect- and preterite-tense inflection of regular and irregular verbs of high and low frequency. Results: Errors in svPPA particularly involved regularization (e.g., I swim → I swimmed, I have swimmed), whereas Aβ+PPA made a wide range of other errors (e.g., verb agreement or tense errors). Regularization was rare in AD and controls, whereas the expected frequency effects (low worse than high) were found in svPPA. nfvPPA had profound difficulties in inflecting verbs in general. Conclusion: The study illustrates how tests tailored to a specific language can reveal the regularization effect of svPPA. For more universal diagnostic recommendations, future revisions for svPPA should consider substituting the criterion of surface dyslexia for that of a general criterion of regularization of language rules, the former being an example of the latter.
Keyword: 3206 Neuropsychology and Physiological Psychology; Dementia; Progressive aphasia; Semantics; Surface dyslexia
URL: https://espace.library.uq.edu.au/view/UQ:4032f1b
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6
The atrophy pattern in Alzheimer-related PPA is more widespread than that of the frontotemporal lobar degeneration associated variants
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7
Data-driven classification of patients with primary progressive aphasia.
Nestor, Peter J; Sajjadi, Seyed Ahmad; Patterson, Karalyn. - : eScholarship, University of California, 2017
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8
Data-driven classification of patients with primary progressive aphasia
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9
Semantic word category processing in semantic dementia and posterior cortical atrophy
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10
Semantic word category processing in semantic dementia and posterior cortical atrophy
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11
Data-driven classification of patients with primary progressive aphasia
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12
SECT and MAST: new tests to assess grammatical abilities in primary progressive aphasia
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13
Logopenic, mixed, or Alzheimer-related aphasia?
Sajjadi, Seyed Ahmad; Patterson, Karalyn; Nestor, Peter J.. - : Lippincott Williams & Wilkins, 2014
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14
Diffusion tensor magnetic resonance imaging for single subject diagnosis in neurodegenerative diseases
Sajjadi, Seyed A.; Acosta-Cabronero, Julio; Patterson, Karalyn. - : Oxford University Press, 2013
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15
Diffusion tensor magnetic resonance imaging for single subject diagnosis in neurodegenerative diseases
Sajjadi, Seyed A.; Acosta-Cabronero, Julio; Patterson, Karalyn. - : Oxford University Press, 2013
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16
Abnormalities of connected speech in semantic dementia vs Alzheimer's disease
In: Aphasiology. - London [u.a.] : Routledge, Taylor & Francis Group 26 (2012) 6, 847-866
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17
Abnormalities of connected speech in the non-semantic variants of primary progressive aphasia
In: Aphasiology. - London [u.a.] : Routledge, Taylor & Francis Group 26 (2012) 10, 1219-1237
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18
Abnormalities of connected speech in the non-semantic variants of primary progressive aphasia
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19
Clinical comparison of progressive aphasia associated with Alzheimer versus FTD-spectrum pathology
Nestor, Peter J; Hodges, John R; Spillantini, Maria Grazia. - : BMJ Publishing Group Ltd, 2011
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20
Clinical comparison of progressive aphasia associated with Alzheimer versus FTD-spectrum pathology
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