Johnston V S, Wang X T
Department of Psychology, New Mexico State University, Las Cruces 88003.
Psychophysiology. 1991 Jul;28(4):400-9. doi: 10.1111/j.1469-8986.1991.tb00723.x.
Event-related potentials (ERPs) and behavioral ratings were collected from 30 female subjects who were exposed to picture slides. The slides belonged to five affective categories whose content was babies, dermatological cases, ordinary people, male models, and female models. Based on the day of testing relative to their menstrual cycle, the subjects were grouped according to their expected levels of androgens, estrogen, or progesterone. The data were examined to determine whether any ERP component or behavioral rating (non-erotic/erotic, unpleasant/pleasant, simple/complex, and low arousal/high arousal) varied as a function of subjects' hormone defined menstrual phase. Only the P3 component was sensitive to menstrual phase. The P3 to babies and male models was largest when progesterone levels were high. High progesterone was also associated with a decrease in the complexity and eroticism of all slide categories. An increase in the pleasantness of all categories was evident when estrogen levels were high. The results are interpreted as support for an "adaptive context updating" theory of the P3 component of ERPs.
从30名观看图片幻灯片的女性受试者身上收集了事件相关电位（ERP）和行为评分。这些幻灯片属于五个情感类别，其内容分别是婴儿、皮肤病病例、普通人、男模特和女模特。根据测试当天相对于她们月经周期的时间，受试者按照其预期的雄激素、雌激素或孕酮水平进行分组。对数据进行检查，以确定是否有任何ERP成分或行为评分（非色情/色情、不愉快/愉快、简单/复杂以及低唤醒/高唤醒）会随着受试者激素定义的月经周期阶段而变化。只有P3成分对月经周期阶段敏感。当孕酮水平较高时，对婴儿和男模特图片的P3波幅最大。高孕酮水平还与所有幻灯片类别的复杂性和色情程度降低有关。当雌激素水平较高时，所有类别的愉悦感都明显增加。这些结果被解释为支持ERP的P3成分的“适应性情境更新”理论。
