Karl M. Pirke1, Götz Kockott1 and Franz Dittmar1
(1) Max-Planck-Institut für Psychiatrie, München, Federal Republic of Germany
Plasma testosterone was measured every 15 min for 3 1/2 hr in eight male subjects before, during, and after the showing of a sexually explicit movie. There was an average increase of 35% in testosterone. The maximum concentration was observed 60�90 min after the end of the film. No increase was found in eight control subjects who saw a sexually neutral film.