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Statistical Comparison of Band Spectral Power: An Aid in Stochastical Analysis of Brain Electrical Activity Part 1: Approximation of the distribution of broad band power by a χ 2 ‐distribution
Author(s) -
Schack B.,
Wagner H.,
Witte H.
Publication year - 1992
Publication title -
biometrical journal
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.108
H-Index - 63
eISSN - 1521-4036
pISSN - 0323-3847
DOI - 10.1002/bimj.4710340208
Subject(s) - distribution (mathematics) , spectral density , statistical analysis , power (physics) , spectral power distribution , mathematics , basis (linear algebra) , statistical physics , broad band , statistical power , statistical model , statistics , physics , mathematical analysis , optics , quantum mechanics , geometry
In this study the distribution of estimated broad band spectral power is evaluated. Under weak assumptions it is possible to appropriate this distribution by a χ2‐distribution and to construct tolerance intervals with great statistical accuracy. The theoretical results implicate a new methodical basis for statistical comparison of spectral parameters in EEG analysis.