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Predicate | Object |
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rdf:type | |
lifeskim:mentions | |
pubmed:issue |
16
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pubmed:dateCreated |
1996-4-18
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pubmed:abstractText |
Selective impairment of word categories such as nouns vs verbs has suggested a regional representation of lexical knowledge in the human brain. The time course of visual word processing was investigated using event-related potentials (ERPs) in normal adults. Subjects performed a word classification task with five categories of stimuli: animal names, verbs, numerals, proper names and meaningless consonant strings. A bilateral posterior ERP difference between words and consonants first appeared 192 ms following stimulus onset, probably reflecting the construction of the visual word form. Category-specific ERP differences began to appear around 260 ms. There was a left temporo-parietal negativity for animal names and verbs, a left inferior temporal negativity for proper names, and a bilateral positivity for numerals. These results provide a bilateral parietal positivity evidence for timing and coarse localization of category-specific word processing in the normal human 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 |
Nov
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pubmed:issn |
0959-4965
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pubmed:author | |
pubmed:issnType |
Print
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pubmed:day |
13
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pubmed:volume |
6
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pubmed:owner |
NLM
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pubmed:authorsComplete |
Y
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pubmed:pagination |
2153-7
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pubmed:dateRevised |
2007-11-14
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pubmed:meshHeading |
pubmed-meshheading:8595192-Adult,
pubmed-meshheading:8595192-Analysis of Variance,
pubmed-meshheading:8595192-Brain Mapping,
pubmed-meshheading:8595192-Evoked Potentials, Visual,
pubmed-meshheading:8595192-Humans,
pubmed-meshheading:8595192-Male,
pubmed-meshheading:8595192-Reference Values,
pubmed-meshheading:8595192-Verbal Learning
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pubmed:year |
1995
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pubmed:articleTitle |
Electrophysiological evidence for category-specific word processing in the normal human brain.
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pubmed:affiliation |
Laboratoire de Sciences Cognitives et Psycholinguistique, Centre National de la Recherche Scientifique (CNRS), Ecole des Hautes Etudes en Sciences Sociales (EHESS), Paris, France.
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pubmed:publicationType |
Journal Article,
Research Support, U.S. Gov't, P.H.S.,
Research Support, U.S. Gov't, Non-P.H.S.,
Research Support, Non-U.S. Gov't
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