Effects of cross-sex hormone treatment on emotionality in transsexuals

The aim of the study was to investigate whether cross-sex hormone treatment in transsexuals affected the intensity of negative and positive emotions in general, and aggressive and sexual feelings in particular. With respect to emotional behavior, changes in non-verbal expressiveness and anger readiness were examined in 47 female-to-male transsexuals (FtMs) and 54 male-to-female transsexuals (MtFs). We were also interested in finding out whether, in FtMs, the rapidly changing testosterone levels in the two-week cycle testosterone treatment had predictable effects on moods, the development of male physical characteristics and sexuality.