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Originally published in Science Express on 18 March 2004
Science 16 April 2004:
Vol. 304. no. 5669, pp. 438 - 441
DOI: 10.1126/science.1095455

Reports

Integration of Word Meaning and World Knowledge in Language Comprehension

Peter Hagoort,1,2,3* Lea Hald,1 Marcel Bastiaansen,1 Karl Magnus Petersson1

Although the sentences that we hear or read have meaning, this does not necessarily mean that they are also true. Relatively little is known about the critical brain structures for, and the relative time course of, establishing the meaning and truth of linguistic expressions. We present electroencephalogram data that show the rapid parallel integration of both semantic and world knowledge during the interpretation of a sentence. Data from functional magnetic resonance imaging revealed that the left inferior prefrontal cortex is involved in the integration of both meaning and world knowledge. Finally, oscillatory brain responses indicate that the brain keeps a record of what makes a sentence hard to interpret.

1 F.C. Donders Centre for Cognitive Neuroimaging, University of Nijmegen, Nijmegen, Netherlands.
2 Nijmegen Institute for Cognition and Information, University of Nijmegen, Nijmegen, Netherlands.
3 Max Planck Institute for Psycholinguistics, Nijmegen, Netherlands.

* To whom correspondence should be addressed. E-mail: peter.hagoort{at}fcdonders.kun.nl

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