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Varieties of Silence : The impact of neurodegenerative diseases on language systems in the brain| old_uid | 1024 |
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| title | Varieties of Silence : The impact of neurodegenerative diseases on language systems in the brain |
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| start_date | 2006/04/04 |
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| schedule | 15h |
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| online | no |
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| summary | For much of its history, research in the neuropsychology of language has been dominated by the study of aphasic syndromes consequent on CVA/stroke. This talk will focus instead on recent advances in our understanding of language-in-the-brain from the study of progressive aphasic syndromes in neurodegenerative conditions. The two principal forms of progressive aphasia, fluent vs. nonfluent, are associated respectively with atrophy centred on the temporal vs. frontal lobes. Patients with either of these debilitating conditions typically progress towards a virtually complete absence of language but, it will be argued, for very different reasons. Patients with progressive fluent aphasia [also known as semantic dementia] retain the ability to speak but lose the vocabulary to speak with. Patients with progressive nonfluent aphasia retain considerable vocabulary but lose the ability to produce speech. Examples of this contrast will be given from the patients’ spontaneous conversation and from more formal tests of their object naming, word repetition and word definition. |
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| responsibles | Ramus |
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