Synopsis
After briefly reviewing the principal features of the human E.E.G., some recently described E.E.G. phenomena and the literature on current clinical advances are summarized, including the use of the E.E.G. to determine brain death. The problem of computer analysis of the E.E.G. and the possible significance of studies on the cerebral evoked response are discussed. The discovery of “contingent negative variation”, for which important claims have been made, is described with reviewer's caution. The paper concludes with a summary of the origin of E.E.G. activity relevant to the needs of the clinician.