Pause B M, Sojka B, Krauel K, Fehm-Wolfsdorf G, Ferstl R
Institute of Psychology, Christian-Albrechts-Universitä, University of Kiel, FRG.
Biol Psychol. 1996 Sep 27;44(1):31-54. doi: 10.1016/s0301-0511(96)05207-6.
In the present study we examined whether olfactory information processing depends on the phase of the menstrual cycle. Five female subjects were investigated during three phases (follicular, ovulatory, luteal) of their menstrual cycle. In each session chemosensory (olfactory) event-related potentials (CSERP) were recorded and olfactory thresholds and the hedonic tone of the test stimulus (citral) were determined. Threshold values were correlated with the salivary cortisol level. The results show that olfactory perception changes during the menstrual cycle. After the first stimulus presentations in a recording session, odors were perceived as more complex or novel during the ovulatory period (enhanced amplitude of P3-1). With continued stimulation, odor processing became faster (reduced latency of NI, P2 and P3-2) around ovulation and slower during the follicular phase. Moreover, odors were described more differentially during the ovulatory period. Olfactory sensitivity was correlated positively with the peripheral cortisol level.
在本研究中，我们考察了嗅觉信息处理是否依赖于月经周期的阶段。对五名女性受试者在其月经周期的三个阶段（卵泡期、排卵期、黄体期）进行了调查。在每个阶段，记录化学感觉（嗅觉）事件相关电位（CSERP），并测定嗅觉阈值和测试刺激物（柠檬醛）的享乐色调。阈值与唾液皮质醇水平相关。结果表明，月经周期中嗅觉感知会发生变化。在记录阶段首次呈现刺激后，在排卵期气味被感知为更复杂或更新奇（P3-1波幅增强）。随着持续刺激，排卵前后气味处理变得更快（NI、P2和P3-2潜伏期缩短），而在卵泡期则变慢。此外，在排卵期对气味的描述差异更大。嗅觉敏感性与外周皮质醇水平呈正相关。
