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Classification of primary progressive aphasia and its variants
This article provides a classification of primary progressive aphasia (PPA) and its 3 main variants to improve the uniformity of case reporting and the reliability of research results. Criteria forExpand
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Understanding normal and impaired word reading: computational principles in quasi-regular domains.
A connectionist approach to processing in quasi-regular domains, as exemplified by English word reading, is developed. Expand
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Where do you know what you know? The representation of semantic knowledge in the human brain
Mr M, a patient with semantic dementia — a neurodegenerative disease that is characterized by the gradual deterioration of semantic memory — was being driven through the countryside to visit a friendExpand
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The neural and computational bases of semantic cognition
Semantic cognition refers to our ability to use, manipulate and generalize knowledge that is acquired over the lifespan to support innumerable verbal and non-verbal behaviours. This Review summarizesExpand
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Structure and deterioration of semantic memory: a neuropsychological and computational investigation.
Wernicke (1900, as cited in G. H. Eggert, 1977) suggested that semantic knowledge arises from the interaction of perceptual representations of objects and words. Expand
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A voxel‐based morphometry study of semantic dementia: Relationship between temporal lobe atrophy and semantic memory
The cortical anatomy of 6 patients with semantic dementia (the temporal lobe variant of frontotemporal dementia) was contrasted with that of a group of age‐matched normal subjects by usingExpand
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Non-verbal semantic impairment in semantic dementia
The clinical presentation of patients with semantic dementia is dominated by anomia and poor verbal comprehension. Although a number of researchers have argued that these patients have impairedExpand
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Semantic dementia: a unique clinicopathological syndrome
Semantic dementia (SD), one of the main clinical variants of frontotemporal dementia, presents a unique combination of clinical and imaging abnormalities. We describe the epidemiological, cognitive,Expand
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Semantic dementia. Progressive fluent aphasia with temporal lobe atrophy.
We report five patients with a stereotyped clinical syndrome characterized by fluent dysphasia with severe anomia, reduced vocabulary and prominent impairment of single-word comprehension,Expand
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Prototypicality, distinctiveness, and intercorrelation: Analyses of the semantic attributes of living and nonliving concepts
Many cognitive psychological, computational, and neuropsychological approaches to the organisation of semantic memory have incorporated the idea that concepts are, at least partly, represented inExpand
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