Abstract
One of the most typical features of sexual activity is copulatory movements (CM; hip thrusting). Our study tested whether CM alone attracts significantly more attention than other movements commonly seen in sex.
We developed a set of 2 seconds long black and white video stimuli depicting various sexual practices with and without CM. Next, we used a simple viewing task while employing eye-tracking technology to capture the amount of attention paid to each stimulus.
For each trial, a fixation cross is visible for 1000, 1500, or 2000 ms. Next, two stimuli appear (each on one side of the fixation cross) for the duration of 2000 ms, after which they disappear and the next trial begins.
We have four categories of stimuli combining two factors: the presence of CM and the presence of penetration, both for the heterosexual and female homosexual condition. Additionally, the laterality of each stimulus pair is pseudo-randomized for each participant.
The eye-tracking device is used to measure the area of interest where the first fixation appears (POFF, the position of the first fixation) during stimuli presentation. In each trial, this measure indicates where the participant looked first after the stimuli appeared revealing which stimulus category attracts the most visuospatial attention.
Currently, we are collecting data with the aim to reach a sample size of 100. For analysis, stimuli will be compared for the number of POFF within their respective category.
Then, the sum of POFF per category will be computed and analyzed using mixed-way ANOVA (within-subject factor: stimulus category, between-subject factor: sexual orientation) with repeated measures. The results will be presented via the poster.