A method for auto- and cross-relation analysis of the EEG

Abstract

A comparatively simple method is described which enables the determination of certain relations between different EEG signals. In distinction from auto- and cross-correlation the method is named auto- and cross-relation.

By means of auto-relation analysis an indication is obtained of the rhythmicity of an activity or of the average wave form of a recurring isolated phenomenon.

By means of cross-relation analysis certain relations between different signals, and their time or phase relations, may be studied.

The averaging may be carried out by means of any average response computer.

A simple form of pattern recognition is described for increasing the signal to noise ratio by means of a frequency selective method.