Publikation:

Temporal stability of high-frequency brain oscillations in the human EEG

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Keil_et_al2003TemporalStability.pdf
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Datum

2003

Autor:innen

Keil, Andreas
Gruber, Thomas
Müller, Matthias M.

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http://nbn-resolving.de/urn:nbn:de:bsz:352-opus-21164
DOI (zitierfähiger Link)
https://doi.org/10.1023/B:BRAT.0000006334.15919.2c
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Open Access Green

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Psychologie: Publikationen
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Published

Erschienen in

Brain Topography. 2003, 16, pp. 101-110. Available under: doi: 10.1023/B:BRAT.0000006334.15919.2c

Zusammenfassung

Temporal stability of a given measurement within individual participants is a desirable property of psychophysiological measures. The present study aims to examine the reliability of high-frequency oscillatory activity in the human electroencephalogram (EEG) across 4 sessions. Convolution of the EEG time series with Morlet wavelets yielded time-frequency representations of the signal for each session. Stability of both topography and time course of gamma-band activity (GBA) was determined for two participants performing a feature-based selective attention task in four separate sessions, spaced at weekly intervals. We found high temporal stability of non-phase-locked GBA typically occurring in time ranges between 200 and 500 ms following presentation of a stimulus, both in terms of topography and time course. Early phase-locked GBA (80-120 ms) showed higher variability with respect to topography, but was consistent in terms of time course. We conclude that measures of high-frequency oscillatory activity as used in the cognitive neurosciences meet stability requirements necessary for meaningful interpretation of this parameter of brain function.

Zusammenfassung in einer weiteren Sprache

Fachgebiet (DDC)
150 Psychologie

Schlagwörter

Cortical Synchronization, *Electroencephalography, *Periodicity, Brain/*physiology

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ISO 690KEIL, Andreas, Margarita STOLAROVA, Sabine HEIM, Thomas GRUBER, Matthias M. MÜLLER, 2003. Temporal stability of high-frequency brain oscillations in the human EEG. In: Brain Topography. 2003, 16, pp. 101-110. Available under: doi: 10.1023/B:BRAT.0000006334.15919.2c
BibTex
@article{Keil2003Tempo-11053,
  year={2003},
  doi={10.1023/B:BRAT.0000006334.15919.2c},
  title={Temporal stability of high-frequency brain oscillations in the human EEG},
  volume={16},
  journal={Brain Topography},
  pages={101--110},
  author={Keil, Andreas and Stolarova, Margarita and Heim, Sabine and Gruber, Thomas and Müller, Matthias M.}
}
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