phy in childhood is more likely to directly influence later sexual behavior and increase the likelihood that the individual will become sexually deviant, than is exposure in adolescence. Propper ( 1970) provided data in support of this claim. Future research in this area might profitably concentrate on discerning differential exposure rates in the childhood of sex offenders and nonoffenders, associated with possibly differential effortfulness in gaining access to pornography at these young ages. Furthermore, research might more precisely define the temporal sequence of the development of sexually aberrant behaviors and fantasies in an attempt to determine the relationship between exposure to pornography and the etiology of sexual deviance.
Finally, data from Carter et al. (in press), Marshall (in press), and Silbert and Pines ( 1984), suggest that rapists and child molesters use pornography incitefully both immediately prior to their crimes and during the actual assaults. As many as one-third of each group (rapists and heterosexual and homosexual pedophiles) use pornography in this way, and because Abel ( 1985) reported that the use of pornography increased interest in deviant sexual practices in more than 39% of offenders, it is hard to resist the conclusion that pornography has a negative influence on these men.
The author wishes to thank Dr. H. E. Barbaree for his careful reading and critical comments on an earlier draft of this chapter.
Abel G. G. ( 1985, September). Use of pornography and erotica by sex offenders. Paper presented to the United States Attorney General's Commission on Pornography, Houston, Tx.
Abel G. G., Barlow D. H., Blanchard E. B., & Guild D. ( 1977). "The components of rapists' sexual arousal". Archives of General Psychiatry, 34, 895-903.
Abel G. G., Barlow D. H., Blanchard E. B., & Mavissakalian M. ( 1975). "Measurement of sexual arousal in male homosexuals: Effects of instructions and stimulus modality". Archives of Sexual Behavior, 4, 623-630.
Abel G. G., Blanchard E. B., & Barlow D. H. ( 1981). "Measurement of sexual arousal in several paraphilias: The effects of stimulus modality, instructional set and stimulus content on the objective". Behaviour Research and Therapy, 19, 25-33.