Visual sensitivity fluctuations during the menstrual cycle under dark and light adaptation

Abstract

Highly trained subjects completed 500 trials under a signal detection rating scale procedure that tested visual sensitivity at five phases of the menstrual cycle under light and dark adaptation. Sensitivity was reliably increased at ovulation under dark adaptation. In contrast with this, light-adapted sensitivity did not change with phase. Previous research has not shown this pattern of result. © 1981, The psychonomic Society, Inc.. All rights reserved.