Data from: Sex-specific but not sexually explicit: pupillary responses to dressed and naked adults

Dilation of the pupils is an indicator of an observer's sexual interest in other people, but it remains unresolved whether this response is strengthened or diminished by sexually explicit material. To address this question, this study compared pupillary responses of heterosexual men and women to naked and dressed portraits of male and female adult film actors. Pupillary responses corresponded with observers' self-reported sexual orientation, such that dilation occurred during the viewing of opposite-sex people, but were comparable for naked and dressed targets. These findings indicate that pupillary responses provide a sex-specific measure, but are not sensitive to sexually explicit content.

瞳孔扩张是观察者对他人产生性兴趣的一项生理指标，但目前学界尚未明确色情素材会增强还是削弱这一反应。为厘清这一尚未解决的科学问题，本研究对比了异性恋男性与女性在观看男女成人影片演员的裸体与着装肖像时的瞳孔反应。研究发现，瞳孔反应与观察者自我报告的性取向相一致：当观看异性个体时，受试者瞳孔会出现扩张，但裸体与着装目标引发的反应并无显著差异。上述研究结果表明，瞳孔反应可作为一项性别特异性的测量指标，但对色情内容并不敏感。