Patrick Mac Sean / Corbis
A new Northwestern University study has found evidence to support the existence of bisexual men, a sharp contrast to a 2005 study from the same university that reported opposite results. For the new study, scientists recruited men directly from websites catering to bisexuals and required that each participant have had sexual experiences with at least two people from each sex. Participants watched videos of male and female same-sex intimacy, and genital sensors monitored erectile responses. The study found that bisexual men actually responded to both scenarios, while the previous study found that bisexual men and gay men had very similar responses. The chairman of the Bisexual Organizing Project said, “It’s great that they’ve come out with affirmation that bisexuality exists. Having said that, they’re proving what we in the community already know. It’s insulting.”