期刊
NEUROPSYCHOLOGIA
卷 47, 期 1, 页码 104-111出版社
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.neuropsychologia.2008.08.015
关键词
fMRI; Number; Semantic memory; Comprehension
资金
- NIH [NS44266, NS53488, AG15116, AG17586, NS54575]
- NATIONAL INSTITUTE OF NEUROLOGICAL DISORDERS AND STROKE [R01NS044266, T32NS054575, P50NS053488] Funding Source: NIH RePORTER
- NATIONAL INSTITUTE ON AGING [R01AG015116, P01AG017586] Funding Source: NIH RePORTER
The present study examined the neural substrate of two classes of quantifiers: numerical quantifiers like at least three which require magnitude processing, and logical quantifiers like some which can be understood using a simple form of perceptual logic. We assessed these distinct classes of quantifiers with converging observations from two sources: functional imaging data from healthy adults, and behavioral and structural data from patients with corticobasal degeneration who have acalculia. Our findings are consistent with the claim that numerical quantifier comprehension depends on a lateral parietal-dorsolateral prefrontal network, but logical quantifier comprehension depends instead on a rostral medial prefrontal-posterior cingulate network. These observations emphasize the important contribution of abstract number knowledge to the meaning of numerical quantifiers in semantic memory and the potential role of a logic-based evaluation in the service of non-numerical quantifiers. (C) 2008 Elsevier Ltd. All rights reserved.
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