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Event-related theta power increases in the human EEG during online sentence processing

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Bastiaansen,  Marcel C. M.
Neurocognition of Language Processing, MPI for Psycholinguistics, Max Planck Society;

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Van Berkum,  Jos J. A.
Neurocognition of Language Processing, MPI for Psycholinguistics, Max Planck Society;

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Hagoort,  Peter
FC Donders Centre for Cognitive Neuroimaging, external;
Neurocognition of Language Processing, MPI for Psycholinguistics, Max Planck Society;

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Citation

Bastiaansen, M. C. M., Van Berkum, J. J. A., & Hagoort, P. (2002). Event-related theta power increases in the human EEG during online sentence processing. Neuroscience Letters, 323(1), 13-16. doi:10.1016/S0304-3940(01)02535-6.


Cite as: http://hdl.handle.net/11858/00-001M-0000-0013-1D82-2
Abstract
By analyzing event-related changes in induced band power in narrow frequency bands of the human electroencephalograph, the present paper explores a possible functional role of the alpha and theta rhythms during the processing of words and of sentences. The results show a phasic power increase in the theta frequency range, together with a phasic power decrease in the alpha frequency range, following the presentation of words in a sentence. These effects may be related to word processing, either lexical or in relation to sentence context. Most importantly, there is a slow and highly frequency-specific increase in theta power as a sentence unfolds, possibly related to the formation of an episodic memory trace, or to incremental verbal working memory load.