Prenatal hormones and sexual orientation Only 23% of childhood gender problems will result in transsexuality in adulthood. Drawing on some transsexualism cases, Garcia-Falgueras and Swaab state that "[f]rom these examples it appears that the direct action of testosterone on the developing brain in boys and the lack of such action on the developing brain in girls are crucial factors in the development of male and female gender identity and sexual orientation ... ." Countless studies have been run on peripheral levels of sex steroids in male and female homosexuals, a considerable number of which claimed to find "less 'male hormone' and/or more 'female hormone' in
Causes of sexual violence that a correct knowledge of the causes of rape is necessary in order to develop effective preventive measures. There is extensive research on sexual coercion. Causes of sexual violence Causes of sexual violence are debated and explanations of the cause include military conquest, socioeconomics, anger, power, sadism, sexual pleasure, psychopathy, ethical standards, laws, attitudes toward the victims and evolutionary pressures. Clinical psychologist Nicholas Groth has described several different types of rape. A detailed conceptual analysis shows that objectification might underlie denial of agency and personhood that leads to rape. The goal of this rapist is to humiliate, debase and hurt