Safe sexual practices not reliably maintained by homosexual men.

Rectal spirochaetosis in homosexual men: the association with sexual practices, HIV infection and enteric flora.

OBJECTIVE To determine the prevalence of rectal spirochaetosis in homosexual men attending a sexually transmissible diseases clinic and investigate the association between their presence and sexual practices, HIV infection and enteric flora. DESIGN The study included 144 male homosexual subjects who each completed a questionnaire, underwent physical examination, proctoscopy and investigations...

Patterns of sexual arousal in homosexual, bisexual, and heterosexual men.

The purpose of this study was to determine if self-identified bisexual, heterosexual, and homosexual men show differential genital and subjective arousal patterns to video presentations of bisexual, heterosexual, male homosexual, and lesbian sexual interactions. It was predicted that, relative to heterosexual and homosexual stimuli, bisexual men would show the highest levels of sexual arousal t...

Homosexual men, HIV, and sexual risk in 2001.

Neural correlates of sexual arousal in homosexual and heterosexual men.

Men exhibit much higher levels of genital and subjective arousal to sexual stimuli containing their preferred sex than they do to stimuli containing only the nonpreferred sex. This study used event-related functional magnetic resonance imaging to investigate how this category-specific pattern would be reflected in the brains of homosexual (n = 11) and heterosexual (n = 11) men. Comparisons of a...

Implicit sexual associations in heterosexual and homosexual women and men.

Patterns of genital arousal to sexual stimuli are somewhat different between men and women. Heterosexual males and homosexual males show clear category specific arousal that is consistent with their self-reported sexual preference. However, heterosexual women do not show this category specificity. In the present study, we attempted to measure a person's automatic appraisals of stimuli with resp...