“…This electroencephalographic finding receives some support from other experimental data and clini cal observations. For example P. Polzien (University of Wurzburg) reported that the drop of the rectal temperature during the First Standard Exercise does not occur during the trainee's initial learning period (52,54). Polzien even went so far as to regard the drop of rectal temperature as a reliable criterion which indicates that the subject really masters the Autogenic Training reliably.…”