A comparison of the power spectral density of scalp EEG and subjacent electrocorticograms

Highlights • The power of the scalp EEG, in the canonical frequency bands, was between 6% and 15% of the power recorded by the subjacent ECoG. • A greater amount of ECoG power was observed in the scalp EEG in the delta frequency band, than in the higher frequency bands. • Above 46 Hz, extracranial v...

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Veröffentlicht in:	Clinical neurophysiology 2016-02, Vol.127 (2), p.1108-1112
Hauptverfasser:	Petroff, Ognen A, Spencer, Dennis D, Goncharova, Irina I, Zaveri, Hitten P
Format:	Artikel
Sprache:	eng
Schlagworte:	Adult Brain Waves - physiology Electrocorticography - methods Electrocorticography - standards Electroencephalography - methods Electroencephalography - standards Epilepsy monitoring Female Gamma frequencies Humans Intracranial electrodes Male Middle Aged Neurology Power spectral density Prospective Studies Retrospective Studies Scalp - physiology Scalp EEG Subdural ECoG Young Adult
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Zusammenfassung:	Highlights • The power of the scalp EEG, in the canonical frequency bands, was between 6% and 15% of the power recorded by the subjacent ECoG. • A greater amount of ECoG power was observed in the scalp EEG in the delta frequency band, than in the higher frequency bands. • Above 46 Hz, extracranial voltage sources contributed to a greater fraction of the power recorded by scalp EEG.
ISSN:	1388-2457 1872-8952
DOI:	10.1016/j.clinph.2015.08.004