Is pedophilia a mental disorder
How common is sexual interest or arousal in persons not known to be, or self-labeled as, pedophiles? In a sample of nearly 200 university males, 21% reported some sexual attraction to small children, 9% described sexual fantasies involving children, 5% admitted to having masturbated to sexual fantasies of children, and 7% indicated they might have sex with a child if not caught (Briere & Runtz, 1989). Briere and Runtz remarked that "given the probable social undesirability of such admissions, we may hypothesize that the actual rates were even higher" (p. 71). In another sample with 100 male and 180 female undergraduate students, 22% of males and 3% of females reported sexual attraction to a child (Smiljanich & Briere, 1996). [...]
"Laboratory researchers have validated physiologically the self-report studies of nonclinical, nonpedophile identified volunteers. In a sample of 80 "normal" volunteers, over 25% self-reported some pedophilic interest or in the plethysmographic phase exhibited penile arousal to a child that equaled or exceeded arousal to an adult (Hall, Hirschman, & Oliver, 1995). In another study, "normal" men's erections to pictures of pubescent and younger girls averaged 70 and 50%, respectively, of their responses to adult females (Quinsey, Steinman, Bergersen, & Holmes, 1975). In a control group of 66 males recruited from hospital staff and the community, 17% showed a penile response that was pedophilic (Fedora et al., 1992). Freund and Watson (1991), studying community male volunteers in a plethysmography classification study, found that 19% were misclassified as having an erotic preference for minors.
Freund and Costell (1970) studied 48 young Czech soldiers who were shown slides of children between 4 and 10, both male and female, as well as adolescents and adults, male and female. Penile responsivity to female children, ages 4-10, was intermediate to adolescent and adult females and males in one scoring system. In the other scoring system, all 48 soldiers showed penile response to adult females, as did 40 of 48 to adolescent females, and notably, 28 of 48 showed penile response to the female children age 4-10."
source: 'Is Pedophilia a Mental Disorder' by Richard Green, M.D., J.D.; kalapa.nfshost.com/files/Is%20Pedophilia%20a%20Mental%20Disorder.pdf; Archives of Sexual Behavior, Vol. 31, No. 6; December 2002