Abstract
Two theories of sexual risk taking (disinhibition and alcohol myopia) were tested using genital measures of sexual response and computer measures of sexual risk propensity. A total of 44 men and women completed two sessions comparing responses to erotic films while consuming alcohol (breath alcohol doses were .025 g/kg and .08 g/kg) or juice alone. After consuming alcohol, more sexual arousal was reported in response to neutral films and at a breath alcohol level of .08 g/kg as compared to no alcohol. Genital responses for men and women increased during sexual films, but men did not respond as strongly when breath alcohol level was .08 g/kg. Intentions to have intercourse with a new partner at baseline predicted the level of sexual arousal reported. As self-reported sexual arousal increased in response to sexual films and higher alcohol dose, the intent to engage in intercourse with a new partner increased. Alcohol dose was not related to later sexual intercourse intentions. With no direct relationship of alcohol and intercourse intentions, results appear more consistent with a disinhibition model of sexual arousal.
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Notes
The difference became significant if the data were binned to enter minute as a predictor. Male genital response effects that did reach the predetermined alpha cutoff include: Men exhibited a main effect of Film Set, F(2, 38) = 16.07, p < .001, η 2 p = .46, and Film Type, F(1, 19) = 94.33, p < .001, η 2 p = .83. The Film Set effect was due to a decrease in erection in response to the third as compared to the first, F(1, 19) = 35.70, p < .001, = .65 and second F(1, 19) = 12.36, p = .002, η 2 p = .39, film sets. The Film Type effect was due to a higher erectile response to sexual as compared to neutral films. There were no other significant main or interaction effects. The non-significant interaction was included, because it suggests that the significant main effects may be due to a lower response to the sexual film when men reached BrAC = .08.
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Description Read to Participant
You will view many slides in this task. Each screen may have a photograph of a person. Also, the screen may tell you how many sexual partners this person has had. Sometimes the screen will give you only a picture, sometimes only the statement about their number of past sexual partners, and sometimes it will give you both. You will see each person’s picture several times.
You should imagine that you have met this person at a party at a friend’s house and you are getting along quite well. This person wants you to go back to his/her apartment and have sexual intercourse with you. However, you do not have a condom and cannot be sure that they do either. Based just on the information that you are given on the screen, you will then be asked to make a judgment as to how likely you would be to have sex with them. You should make this judgment as though you do not currently have a partner. Also, although some people believe that more sexual partners increase a person’s sexual skills (or make them “good in bed”) you should only consider the number of partners as the likelihood that this person has a sexually transmitted disease. Therefore, the more sexual partners a person has had, the more likely that the person has an STD.
Please try to give your first impression and try to be as honest as possible when responding in this task. I will tell you over the intercom when to do this task. The sheet on the wall will remind you what the main features of this story are that you should remember.
Prompt Immediately Preceding the Task
You will now complete the computer task. Recall that in this situation you should think of the pictures as people that you have met at a party that are interested in you. Also remember that you should only consider the number of partners as the likelihood that the person has a sexually transmitted disease. Use the strip on the keyboard to remind you of the question that you are answering.
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Prause, N., Staley, C. & Finn, P. The Effects of Acute Ethanol Consumption on Sexual Response and Sexual Risk-Taking Intent. Arch Sex Behav 40, 373–384 (2011). https://doi.org/10.1007/s10508-010-9718-9
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DOI: https://doi.org/10.1007/s10508-010-9718-9