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Do You Read How I Read? Systematic Individual Differences in Semantic Reliance amongst Normal Readers
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Mapping the Multiple Graded Contributions of the Anterior Temporal Lobe Representational Hub to Abstract and Social Concepts: Evidence from Distortion-corrected fMRI
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Direct Exploration of the Role of the Ventral Anterior Temporal Lobe in Semantic Memory: Cortical Stimulation and Local Field Potential Evidence From Subdural Grid Electrodes
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The Nature and Neural Correlates of Semantic Association versus Conceptual Similarity
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Establishing task- and modality-dependent dissociations between the semantic and default mode networks
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Differing contributions of inferior prefrontal and anterior temporal cortex to concrete and abstract conceptual knowledge
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Varieties of semantic ‘access’ deficit in Wernicke’s aphasia and semantic aphasia
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Disorders of representation and control in semantic cognition : Effects of familiarity, typicality, and specificity
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Varieties of semantic 'access' deficit in Wernicke's aphasia and semantic aphasia
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Processing deficits for familiar and novel faces in patients with left posterior fusiform lesions
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Triangulation of the neurocomputational architecture underpinning reading aloud
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Varieties of semantic ‘access’ deficit in Wernicke’s aphasia and semantic aphasia
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Disorders of representation and control in semantic cognition: Effects of familiarity, typicality, and specificity
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Abstract:
We present a case-series comparison of patients with cross-modal semantic impairments consequent on either (a) bilateral anterior temporal lobe atrophy in semantic dementia (SD) or (b) left-hemisphere fronto-parietal and/or posterior temporal stroke in semantic aphasia (SA). Both groups were assessed on a new test battery designed to measure how performance is influenced by concept familiarity, typicality and specificity. In line with previous findings, performance in SD was strongly modulated by all of these factors, with better performance for more familiar items (regardless of typicality), for more typical items (regardless of familiarity) and for tasks that did not require very specific classification, consistent with the gradual degradation of conceptual knowledge in SD. The SA group showed significant impairments on all tasks but their sensitivity to familiarity, typicality and specificity was more variable and governed by task-specific effects of these factors on controlled semantic processing. The results are discussed with reference to theories about the complementary roles of representation and manipulation of semantic knowledge.
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Keyword:
Article
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URL: https://doi.org/10.1016/j.neuropsychologia.2015.04.015 http://www.ncbi.nlm.nih.gov/pmc/articles/PMC4582808/ http://www.ncbi.nlm.nih.gov/pubmed/25934635
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Time- but not sleep-dependent consolidation promotes the emergence of cross-modal conceptual representations
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The anterior temporal lobes are critically involved in acquiring new conceptual knowledge: Evidence for impaired feature integration in semantic dementia☆
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Capturing multidimensionality in stroke aphasia: mapping principal behavioural components to neural structures
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98 |
Time- but not sleep-dependent consolidation promotes the emergence of cross-modal conceptual representations
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Time- but not sleep-dependent consolidation promotes the emergence of cross-modal conceptual representations
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Capturing multidimensionality in stroke aphasia: mapping principal behavioural components to neural structures
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