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Semantic priming for coordinate distant concepts in Alzheimer's disease patients
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Working memory impairment in children with developmental dyslexia: is it just a phonological deficity?
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Manipulating color and other visual information influences picture naming at different levels of processing: evidence from Alzheimer subjects and normal controls
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Verbal short-term memory in individuals with congenital articulatory disorders: new empirical data and review of the literature
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The role of semantic distance in category-specific impairments for living things: evidence from a case of semantic dementia
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The role of semantic distance in category-specific impairments for living things: evidence from a case of semantic dementia
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Priming for novel between-word associations in patients with organic amnesia
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Priming for novel between-word associations in patients with organic amnesia
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Brain activity during intra- and cross-modal priming: new empirical data and review of the literature
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Brain activity during intra- and cross-modal priming: new empirical data and review of the literature
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Verbal short-term memory in Down's syndrome: an articulatory loop deficit?
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Category-specific impairment in patients with Alzheimer's disease as a function of disease severity: a cross-sectional investigation
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Deficient intentional access to semantic knowledge in patients with severe closed-head injury
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Developmental dissociation between visual and auditory repetition priming: the role of input lexicons
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Verbal working memory deficit in Parkinson's disease subjects
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Lexical and conceptual components of stem completion priming in patients with Alzheimer's disease
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Abstract:
This study evaluated the hypothesis of dissociation between normal lexical but deficient conceptual repetition priming in patients with Alzheimer's disease (AD). For this purpose, we administered to patients with AD and age-matched normal controls the Stem Completion task. In Experiment 1, the level of word processing during study was manipulated by requiring subjects to count vowels (graphemic condition) or generate meanings (semantic condition) of target words. In Experiment 2, the presentation modality was varied during the study to obtain an intramodal and crossmodal repetition priming. Probably due to a floor effect of performance in the graphemic condition, in Experiment 1, AD patients exhibited lower priming than normal controls for the semantically processed words but comparable priming for the graphemically processed ones. In contrast, in Experiment 2, AD patients were poorly primed both in the intra- and crossmodal conditions. Results question the hypothesis of a lexical/conceptual dissociation in the repetition priming exhibited by AD patients and call for other explicative hypotheses of the dissociation between normal and deficient forms of repetition priming in degenerative dementia.
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Keyword:
Aged; Alzheimer Disease; Analysis of Variance; Association; Case-Control Studies; Cognition Disorders; Concept Formation; Cues; Female; Humans; Male; Mental Recall; Middle Aged; Practice (Psychology); Reading; Semantics; Settore MED/26 - Neurologia; Speech Perception
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URL: http://hdl.handle.net/2108/66472
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Analysis of the memory impairment in a post-encephalitic patient with focal retrograde amnesia
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The Mental Deterioration Battery: normative data, diagnostic reliability and qualitative analyses of cognitive impairment. The Group for the Standardization of the Mental Deterioration Battery
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Recency effect in anterograde amnesia: evidence for distinct memory stores underlying enhanced retrieval of terminal items in immediate and delayed recall paradigms
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