High-frequency cortical responses reflect lexical processing : an MEG study

Pulvermüller, Friedemann; Eulitz, Carsten; Pantev, Christo; Mohr, Bettina; Feige, Bernd; Lutzenberger, Werner; Elbert, Thomas; Birbaumer, Niels

High-frequency cortical responses reflect lexical processing : an MEG study

Files

Pulvermueller_etal1996.pdf(919.28 KB)

Date

1996

Authors

Pulvermüller, Friedemann

Eulitz, Carsten

Pantev, Christo

Mohr, Bettina

Feige, Bernd

Lutzenberger, Werner

Elbert, Thomas

Birbaumer, Niels

Publication type

Journal article

Published in

Electroencephalography and clinical Neurophysiology ; 98 (1996). - pp. 76-85

Abstract

Meaningful words and matched pseudowords, such as MOON vs. NOOM, are of equal perceptual complexity, but invoke different cognitive processes. To investigate high-frequency cortical responses to these stimuli, biomagnetic signals were recorded simultaneously over both hemispheres of right-handed individuals listening to words and pseudowords. Consistent with earlier EEG studies, evoked spectral responses recorded from the left hemisphere revealed depression of spectral power in the low gamma band (around 30 Hz) after pseudowords but not after words. Similar differences between stimulus categories were present in the beta range. These results indicate that distinct patterns of high-frequency cortical responses correspond to the different cognitive processes invoked by words and pseudowords. It is hypothesized that differential high-frequency cortical responses signal the activation or activation failure of distributed Hebbian cell assemblies representing words and other elements of cognitive processing.

Subject (DDC)

150 Psychology

Keywords

Cell assembly,Beta,Cognitive,Evoked spectral respoonses,Gamma,Language,Magnetoencephalography,30 Hz

Cite This

ISO 690

PULVERMÜLLER, Friedemann, Carsten EULITZ, Christo PANTEV, Bettina MOHR, Bernd FEIGE, Werner LUTZENBERGER, Thomas ELBERT, Niels BIRBAUMER, 1996. High-frequency cortical responses reflect lexical processing : an MEG study. In: Electroencephalography and clinical Neurophysiology. 98, pp. 76-85. Available under: doi: 10.1016/0013-4694(95)00191-3

BibTex

@article{Pulvermuller1996Highf-10901,
  year={1996},
  doi={10.1016/0013-4694(95)00191-3},
  title={High-frequency cortical responses reflect lexical processing : an MEG study},
  volume={98},
  journal={Electroencephalography and clinical Neurophysiology},
  pages={76--85},
  author={Pulvermüller, Friedemann and Eulitz, Carsten and Pantev, Christo and Mohr, Bettina and Feige, Bernd and Lutzenberger, Werner and Elbert, Thomas and Birbaumer, Niels}
}

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