[Phalloplethysmographic findings in aggressive sexual offenders]

Using the phalloplethysmographic test, comprising 25 coloured slides of five categories, the author examined 100 sexual delinquents, who committed crimes involving sexual aggression of adult females. The same test was used in 100 men of a control group who had no disorders nor difficulties in sexual life. During exposure of the basic set of stimuli (adult and child heterosexual objects) men of the control group had a better ability to differentiate sex and age of sexual objects, they reacted more frequently and more markedly in a positive way to heterosexual adult subjects than men in the group of sexual aggressors. The latter, on the other hand, reacted more frequently in a positive way also to adult and child homosexual subjects. As regards age differentiation in heterosexual objects, the difference between the two groups was not significant. During exposure of slides with a sadistic theme positive reactions were significantly more frequently recorded in the group of sexual aggressors and only in men of this group positive reactions classified as large were recorded. Repeatedly positive reactions of average size were recorded in 26 sexual aggressors.