Dr. Robert J. Stoller, a leading expert on issues of sexual identity and perversions and Professor of Psychiatry at the University of California, Los Angeles psychoanalyst, died last Friday in an accident tráfico.Célebre for his writings on the perversions., sexual arousal and problems as transsexuality, his theories "broke down some of the beliefs settled down in traditional psychoanalysis", according to Professor of Psychiatry Ethel Person. For Stoller, much of sexual behavior, as the seductive flirt, hides a real hostility, and sexual perversions are really a form of emotional revenge for childhood wounds. Pornography, ritualized sexual acts and sexual fantasies, according to Stoller, are vehicles for transforming symbolically childhood trauma, such as parental neglect, sexual triumphs.Stoller was also a pioneer of the questioning of the distinction between what is evil and what is normal in the sexual, fuzzy for him, he could only be based on respect for the rights of other online behavior. His publications include Sex and gender: the development of masculinity and femininity (1968), Perversion: The erotic form of hatred (1975), sexual arousal: the dynamics of erotic life (1979). Earlier this year he published Pain and Passion: an ethnography of consensual sadomasochism