性激素会影响赫尔姆霍尔茨-科尔劳施效应
1University of the Incarnate Word, Rosenberg School of Optometry, San Antonio, TX, USA.
Journal of ophthalmic & vision research
|April 19, 2024
概括
月经周期中的荷尔蒙波动会影响女性对光亮度的感知,对赫尔姆霍尔茨-科尔劳施效应的影响与口服避孕药不同. 这些发现强调了在视觉感知研究中需要考虑荷尔蒙状况的必要性.
科学领域:
- 视觉感知 视觉感知 视觉感知
- 人类生理学 人类生理学
- 内分泌学 在内分泌学.
背景情况:
- 赫尔姆霍尔茨-科尔劳施 (H-K) 效应描述了和光线如何比同等亮度的白光更亮.
- 现有的H-K效应模型显示性别差异和女性更大的变化,可能与月经周期 (MC) 激素变化有关.
研究的目的:
- 研究月经周期内的荷尔蒙波动如何影响女性的H-K效应.
- 为了比较自然循环女性与口服避孕药 (OC) 用户的视觉感知.
主要方法:
- 测量了各种色调 (蓝色,绿色,黄绿色,黄色,红色) 的总亮度 (B) 和非色色发光率 (L).
- 唾液激素水平 (雌激素,孕激素) 被测量在九个骑自行车的妇女和七个OC用户在月经,周排卵和黄体阶段.
- 计算了亮度/亮度 (B/L) 比率以估计H-K效应.
主要成果:
- 虽然简单的B/L比率与OC使用或MC阶段没有差异,但与OC使用者相比,骑自行车的女性在质阶段对红色刺激的B/L比率较高.
- 雌激素,孕激素及其相互作用预测了骑自行车的女性18%的亮度变化.
- 在OC使用者中,雌激素单独占亮度变异的5%.
结论:
- 研究结果支持在视觉感知研究中区分骑自行车的女性和OC用户,特别是在长波长刺激方面.
- 对于红色刺激的B/L比率,OC使用和MC阶段之间的相互作用是与长波长机制相关的重要发现.
- 亮度模型要求骑自行车的女性使用荷尔蒙术语,而不是OC用户.
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