Methods Inf Med 2001; 40(02): 106-111
DOI: 10.1055/s-0038-1634470
Original Article
Schattauer GmbH

EEG Frequency and Phase Coupling during Human Information Processing

B. Schack
1   Institute of Medical Statistics, Computer Science and Documentation, University of Jena, Germany
,
P. Rappelsberger
2   Brain Research Institute (Neurophysiology), University of Vienna, Austria, Germany
,
N. Vath
3   Institute of Psychology, University of Göttingen, Germany
,
S. Weiss
2   Brain Research Institute (Neurophysiology), University of Vienna, Austria, Germany
,
E. Möller
1   Institute of Medical Statistics, Computer Science and Documentation, University of Jena, Germany
,
G. Grießbach
4   Department of Biomedical Engineering, Technical University of Ilmenau, Germany
,
H. Witte
1   Institute of Medical Statistics, Computer Science and Documentation, University of Jena, Germany
› Institutsangaben
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Publikationsverlauf

Publikationsdatum:
07. Februar 2018 (online)

Abstract

Neuronal activity during information processing is represented by oscillations within local or widespread neuronal networks. These oscillations may be recorded by the EEG (electroencephalogram). The oscillatory interaction between neuronal ensembles may be at one single frequency or at different frequencies due to non-linear coupling. The investigation of momentary coherence and phase enables the examination of synchronized oscillatory network activity during fast-changing cognitive processes. On this basis information transfer from occipital areas towards frontal areas could be described during processing of visual presented words. Non-linear phase coupling between oscillations with different frequencies during memory processing was detected by means of cross-bicoherence.

 
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