Exploring Sexual Arousal Synchrony: A Pilot Study on Dyadic Sexual Arousal Covariation in the Lab

Executive Summary<> Background: <>Sexual arousal research has focused on individuals, largely ignoring the interactive dynamics of partnered encounters. <>Relational models posit that partners’ emotions are dynamically coupled, with each regulating and being regulated by the other. <>Synchrony, the temporal covariation of partners’ physiological and subjective states, is tied to relationship quality yet remains largely unexamined in sexual psychophysiology. <>Preliminary work shows heart rate synchrony during sex and links cardiovascular alignment to satisfaction, underscoring the need to map sexual arousal synchrony more directly.

Objective: <>Primary: Determine whether subjective sexual arousal and genital responses synchronize within mixed sex couples during an erotic video and a virtual sexual interaction. <>Secondary: Test whether attentional focus (self vs couple) modulates magnitude, phase, or direction of synchrony; explore links between synchrony and sexual/relational well-being. Methods: <>Laboratory study with 36 opposite sex couples (18–36 years); final analytic sets: genital n = 25, subjective n = 34. <>Design: two neutral films (5 and 3 minutes, respectively), one 3-minute erotic film, 17-minute virtual interaction (2-minute acclimatization, 5-minute free talk, two 5-minute self- vs couple focus blocks). <>Measures: vaginal photoplethysmography; penile circumference gauge; 30 s self rated sexual arousal (7 point scale). <>Analyses: windowed cross correlation (lags –2 to +2) for magnitude/phase and Granger causality for direction of synchrony; repeated measures ANOVAs; Pearson correlations with indices of sexual and relational well-being.