Department of Psychology, University of Chicago, United States of America.
Department of Psychology, University of Chicago, United States of America.
Horm Behav. 2019 Sep;115:104562. doi: 10.1016/j.yhbeh.2019.104562. Epub 2019 Aug 17.
Past work demonstrates that humans behave differently towards women across their menstrual cycles, even after exclusively visual exposure to women's faces. People may look at women's faces differently as a function of women's menstrual cycles. Analyses of participants' scanpaths (eye movement patterns) while they looked at women at different phases of their menstrual cycles revealed that observers exhibit more consistent scanpaths when examining women's faces when women are in a menstrual cycle phase that typically corresponds with peak fertility, whereas they exhibit more variable patterns when looking at women's faces when they are in phases that do not correspond with fertility. A multivariate classifier on participants' scanpaths predicted whether they were looking at the face of a woman in a more typically fertile- versus non-fertile-phase of her menstrual cycle with above-chance accuracy. These findings demonstrate that people look at women's faces differently as a function of women's menstrual cycles, and suggest that people are sensitive to fluctuating visual cues associated with women's menstrual cycle phase.
过往研究表明，即使仅通过视觉观察女性的面孔，人类在女性的整个月经周期内也会表现出不同的行为。人们可能会根据女性的月经周期来以不同的方式看待女性的面孔。分析参与者在女性处于月经周期中通常与生育高峰期相对应的阶段和不对应生育高峰期的阶段观察女性面孔时的眼动模式（注视轨迹），结果显示，当观察处于生育高峰期的女性的面孔时，观察者表现出更一致的注视轨迹，而当观察不处于生育高峰期的女性的面孔时，他们的注视模式则更具变化性。基于参与者注视轨迹的多元分类器可以以上限概率的准确性预测他们正在观察的女性是否处于生育能力较强的阶段。这些发现表明，人们会根据女性的月经周期来以不同的方式看待女性的面孔，这表明人们对与女性月经周期阶段相关的视觉变化很敏感。
