Spherical harmonic decomposition applied to spatial-temporal analysis of human high-density EEG

Details Spherical harmonic decomposition applied to spatial-temporal analysis of human high-density EEG Spherical harmonic decomposition applied to spatial-temporal analysis of human high-density EEG

2000-11-02

arxiv.org/abs/physics/0011006v1

Physics

Biological Physics

12 pages, 8 figures, submitted to Phys. Rev. E, uses APS RevTeX styles

Scientific paper

10.1103/PhysRevE.64.051916

We demonstrate an application of spherical harmonic decomposition to analysis of the human electroencephalogram (EEG). We implement two methods and discuss issues specific to analysis of hemispherical, irregularly sampled data. Performance of the methods and spatial sampling requirements are quantified using simulated data. The analysis is applied to experimental EEG data, confirming earlier reports of an approximate frequency-wavenumber relationship in some bands.

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