This is an anonymous internet-based survey on women's and men's sexuality, emotions, and childhood experiences. The survey takes about 45 minutes to complete,and participants interested in entering the compensation raffle can email their randomly-generated respondent ID to sexualhealthsurvey@uvm.edu

In this study both physiological and subjective sexual arousal are measured while watching a sexually explicit video. Urine and saliva samples are taken, and participants complete questionnaires on anxious situations while listening to music.

Over one month, come in during the first week of a new pack or new ring of oral contraceptives (visit 1). You will be given a physiological and subjective assessment of sexual arousal while recalling a sexual fantasy. Saliva samples are taken, and a questionnaire and a brief interview are given. You will also be asked to complete a daily questionnaire for 2½ weeks. During the third week of the pack or ring you will come in for a repeat of visit 1.

Three saliva samples are taken. While watching sexually explicit videos both physiological and subjective sexual arousal are measured. On Day One, you will answer several questionnaires. On Day Two, you will also be interviewed.

This is a longitudinal study. Participants will visit the Person Environment Zone Projects research site at the University of Vermont 3 times over a 6 month period (every 90 days). During their first visit, participants will complete a variety of questionnaires about their experiences with HIV/AIDS stigma, their perceptions of their community, their experience with relationships, how they cope with stress, about their sexual behavior, and about their psychological health. Participants will also call an automated IVR phone-in diary to report their experiences every day for 7 days after their first visit.