The Clinical EEG-A Search for a Buried Message

Techniques for the study of the EEG have been developed, techniques that are capable either of averaging noise or of improving the signal to noise ratio in the absence of any triggering or synchronizing pulse. These techniques show that electroencephalograms of the type ordinarily encountered in clinical work (except for EEGs during clinical seizures which have not yet been analyzed) are apparently composed of only pseudo-random noise. The results are further support of the claim that no signal wave form with features distinct from those of random noise is present in the EEG.