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Hits 81 – 100 of 234

81
Do You Read How I Read? Systematic Individual Differences in Semantic Reliance amongst Normal Readers
Woollams, Anna M.; Lambon Ralph, Matthew A.; Madrid, Gaston. - : Frontiers Media S.A., 2016
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82
Mapping the Multiple Graded Contributions of the Anterior Temporal Lobe Representational Hub to Abstract and Social Concepts: Evidence from Distortion-corrected fMRI
Binney, Richard J.; Hoffman, Paul; Lambon Ralph, Matthew A.. - : Oxford University Press, 2016
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83
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
Shimotake, Akihiro; Matsumoto, Riki; Ueno, Taiji. - : Oxford University Press, 2015
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84
The Nature and Neural Correlates of Semantic Association versus Conceptual Similarity
Jackson, Rebecca L.; Hoffman, Paul; Pobric, Gorana. - : Oxford University Press, 2015
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85
Establishing task- and modality-dependent dissociations between the semantic and default mode networks
Humphreys, Gina F.; Hoffman, Paul; Visser, Maya. - : National Academy of Sciences, 2015
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86
Differing contributions of inferior prefrontal and anterior temporal cortex to concrete and abstract conceptual knowledge
Abstract: Semantic cognition is underpinned by regions involved in representing conceptual knowledge and executive control areas that provide regulation of this information according to current task requirements. Using distortion-corrected fMRI, we investigated the contributions of these two systems to abstract and concrete word comprehension. We contrasted semantic decisions made either with coherent contextual support, which encouraged retrieval of a rich conceptual representation, or with irrelevant contextual information, which instead maximised demands on control processes. Inferior prefrontal cortex was activated more when decisions were made in the presence of irrelevant context, suggesting that this region is crucial for the semantic control functions required to select appropriate aspects of meaning in the face of competing information. It also exhibited greater activation for abstract words, which reflects the fact that abstract words tend to have variable, context-dependent meanings that place higher demands on control processes. In contrast, anterior temporal regions (ATL) were most active when decisions were made with the benefit of a coherent context, suggesting a representational role. There was a graded shift in concreteness effects in this region, with dorsolateral areas particularly active for abstract words and ventromedial areas preferentially activated by concrete words. This supports the idea that concrete concepts are closely associated with visual experience and abstract concepts with auditory-verbal information; and that sub-regions of the ATL display graded specialisation for these two types of knowledge. Between these two extremes, we identified significant activations for both word types in ventrolateral ATL. This area is known to be involved in representing knowledge for concrete concepts; here we established that it is also activated by abstract concepts. These results converge with data from rTMS and neuropsychological investigations in demonstrating that representational content and task demands influence recruitment of different areas in the semantic network.
Keyword: Research Report
URL: https://doi.org/10.1016/j.cortex.2014.09.001
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC4317194
http://www.ncbi.nlm.nih.gov/pubmed/25303272
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87
Varieties of semantic ‘access’ deficit in Wernicke’s aphasia and semantic aphasia
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88
Disorders of representation and control in semantic cognition : Effects of familiarity, typicality, and specificity
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89
Varieties of semantic 'access' deficit in Wernicke's aphasia and semantic aphasia
Thompson, Hannah E.; Robson, Holly; Lambon Ralph, Matthew A.. - : Oxford University Press, 2015
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90
Processing deficits for familiar and novel faces in patients with left posterior fusiform lesions
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91
Triangulation of the neurocomputational architecture underpinning reading aloud
Hoffman, Paul; Lambon Ralph, Matthew A.; Woollams, Anna M.. - : National Academy of Sciences, 2015
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92
Varieties of semantic ‘access’ deficit in Wernicke’s aphasia and semantic aphasia
Thompson, Hannah E.; Robson, Holly; Lambon Ralph, Matthew A.. - : Oxford University Press, 2015
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93
Disorders of representation and control in semantic cognition: Effects of familiarity, typicality, and specificity
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94
What lies beneath: A comparison of reading aloud in pure alexia and semantic dementia
In: Cognitive neuropsychology. - Abingdon : Routledge, Taylor & Francis Group 31 (2014) 5, 461-481
OLC Linguistik
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95
Time- but not sleep-dependent consolidation promotes the emergence of cross-modal conceptual representations
Hennies, Nora; Lewis, Penelope A.; Durrant, Simon J.. - : Pergamon Press, 2014
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96
The anterior temporal lobes are critically involved in acquiring new conceptual knowledge: Evidence for impaired feature integration in semantic dementia☆
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97
Capturing multidimensionality in stroke aphasia: mapping principal behavioural components to neural structures
Butler, Rebecca A.; Lambon Ralph, Matthew A.; Woollams, Anna M.. - : Oxford University Press, 2014
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98
Time- but not sleep-dependent consolidation promotes the emergence of cross-modal conceptual representations
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99
Time- but not sleep-dependent consolidation promotes the emergence of cross-modal conceptual representations
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100
Capturing multidimensionality in stroke aphasia: mapping principal behavioural components to neural structures
Butler, Rebecca A.; Lambon Ralph, Matthew A.; Woollams, Anna M.. - : Oxford University Press, 2014
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