Sexual fantasy alternation.

The purpose of this study was (a) to assess the effect of fantasy alternation on sexual arousal, and (b) to assess the means by which fantasy alternation might alter sexual arousal patterns. The rate of alternation of heterosexual and homosexual masturbatory fantasies was manipulated in four adult males with sexual orientation confusion. The results showed that fantasy alternation can change the relative strength of physiologically measured sexual arousal patterns, but the direction and magnitude of the change seems unpredictable. The effect seems to be sensitive to the rapidity of fantasy alternation. Caution in the clinical use of the procedure with actual sexual deviants appears warranted.