Considering the role of semantic memory in episodic future thinking: evidence from semantic dementia
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چکیده
منابع مشابه
Considering the role of semantic memory in episodic future thinking: evidence from semantic dementia.
Semantic dementia is a progressive neurodegenerative condition characterized by the profound and amodal loss of semantic memory in the context of relatively preserved episodic memory. In contrast, patients with Alzheimer's disease typically display impairments in episodic memory, but with semantic deficits of a much lesser magnitude than in semantic dementia. Our understanding of episodic memor...
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Episodic future thinking refers to a human cognitive process which generates successive predictions of events that are likely to occur in a cue-specific context in the future. An emerging view is that semantic memory as well as episodic memory contributes to this process, but the exact mechanism remains unclear. We built a computational model that learned to predict the next event upon a presen...
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Semantic dementia (SD) is a syndrome of progressive impairment in semantic memory. Fifty-eight brain regions were measured in seven post mortem SD cases, ten normal controls and two disease controls (diagnosis frontotemporal dementia and motor neuron disease, FTD-MND). Manual segmentation of the whole brain has not previously been undertaken in a series of SD cases, either post mortem or during...
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Previous studies have documented poor recognition memory for faces in patients with semantic dementia. Preserved face recognition memory was found in this study, however, so long as atrophy was confined predominantly to the left temporal lobe. Patients with structural damage to the right temporal lobe were typically impaired, with the status of the hippocampus and parahippocampal gyrus (includi...
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Previous group studies involving patients with semantic dementia, who have impaired semantic memory associated with temporal lobe atrophy, have documented the preservation of pictorial recognition memory, in contrast to patients with early Alzheimer’s disease, who characteristically exhibit amnesia. The present study replicated this general pattern, although four of the semantic dementia patien...
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ژورنال
عنوان ژورنال: Brain
سال: 2012
ISSN: 1460-2156,0006-8950
DOI: 10.1093/brain/aws119