All women bisexual

Thank you for visiting nature. You are using a browser version with limited support for CSS. To obtain the best experience, we recommend you use a more up to date browser or turn off compatibility mode in Internet Explorer. In the meantime, to ensure continued support, we are displaying the site without styles and JavaScript. We focused on the ventral striatum, an area of the brain associated with desire, extending previous findings from the sexual psychophysiology literature in which homosexual women had greater category specificity relative to heterosexual and bisexual women in their responses to male and female erotic stimuli.

Dopaminergic neurons are located in the midbrain structures substantia nigra SNc and the ventral tegmental area VTA. Their axons project to the striatum caudate nucleus, putamen and ventral striatum including nucleus accumbens , the dorsal and ventral prefrontal cortex. A new study provides more evidence that heterosexual women are just as likely to be aroused by erotic stimuli featuring men as erotic stimuli featuring women. But that does not appear to be the case for homosexual women. The new neuroimaging research, published recently in Scientific Reports , found that gay and straight women had different brain responses to sexually-arousing stimuli. But there was not a strong difference between the brain responses of straight and bisexual women. We wanted to know what this might mean, so we looked to brain activity as another line of evidence.

Gay women tend to be exclusively sexually attracted to women, while straight women are more likely to be aroused by both sexes, a study says. Researchers asked women about their sexual preferences and compared these with their arousal levels when shown videos of attractive men and women. The University of Essex study concluded that no woman is "totally straight".

Although lesbians are much more attracted to females, most women who say they are straight were aroused by videos of both naked men and naked women. The study , led by Doctor Gerulf Rieger from the Department of Psychology at the University of Essex, showed a series of videos of naked men and women to women and recorded their responses. It found 82 per cent of the women tested were aroused by both sexes, based on indicators such as whether their pupils dilated in response to sexual stimuli. Of the women who identified as straight, 74 per cent were strongly sexual aroused by videos of both attractive men and attractive women. He also said the study showed lesbians who may dress in a more masculine manner may not have more masculine behaviours.