Source:http://linkedlifedata.com/resource/pubmed/id/16989552
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Predicate | Object |
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rdf:type | |
lifeskim:mentions | |
pubmed:issue |
9
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pubmed:dateCreated |
2006-9-22
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pubmed:abstractText |
The neural mechanism of number representation and processing is currently under extensive investigation. In this functional magnetic resonance imaging study, we designed a number comparison task to examine how people represent and compare two-digit numbers in the brain, and whether they process the decade and unit digits in parallel. We manipulated the decade-unit-digit congruency and numerical distance between the pairs of numbers. We observed both Stroop-like interference and the distance effect in the participants' performance. People responded more slowly to incongruent pairs of numbers and pairs of a smaller distance. The inferior parietal cortex showed common and distinct patterns of activation for both attentional selection and number comparison processes, and its activity was modulated by the Stroop-like interference effect and the distance effect. Taken together, these results support both parallel and holistic comparison of two-digit numbers in the brain.
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pubmed:grant | |
pubmed:language |
eng
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pubmed:journal | |
pubmed:citationSubset |
IM
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pubmed:status |
MEDLINE
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pubmed:month |
Sep
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pubmed:issn |
0898-929X
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pubmed:author | |
pubmed:issnType |
Print
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pubmed:volume |
18
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pubmed:owner |
NLM
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pubmed:authorsComplete |
Y
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pubmed:pagination |
1518-30
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pubmed:dateRevised |
2007-11-14
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pubmed:meshHeading |
pubmed-meshheading:16989552-Adolescent,
pubmed-meshheading:16989552-Adult,
pubmed-meshheading:16989552-Brain Mapping,
pubmed-meshheading:16989552-Comprehension,
pubmed-meshheading:16989552-Discrimination (Psychology),
pubmed-meshheading:16989552-Female,
pubmed-meshheading:16989552-Humans,
pubmed-meshheading:16989552-Judgment,
pubmed-meshheading:16989552-Magnetic Resonance Imaging,
pubmed-meshheading:16989552-Male,
pubmed-meshheading:16989552-Mathematics,
pubmed-meshheading:16989552-Mental Processes,
pubmed-meshheading:16989552-Middle Aged,
pubmed-meshheading:16989552-Parietal Lobe,
pubmed-meshheading:16989552-Pattern Recognition, Visual,
pubmed-meshheading:16989552-Problem Solving,
pubmed-meshheading:16989552-Visual Perception
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pubmed:year |
2006
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pubmed:articleTitle |
The involvement of the inferior parietal cortex in the numerical Stroop effect and the distance effect in a two-digit number comparison task.
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pubmed:affiliation |
University of Kentucky, Lexington, USA. xun.liu@uky.edu
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pubmed:publicationType |
Journal Article,
Comparative Study,
Research Support, Non-U.S. Gov't,
Research Support, N.I.H., Extramural
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