Abstract
The value of electric flicker (EFV) of 6 healthy female subjects aged 16 years were measured, extending over 2 and a half months to examine the effect of the menstrual cycle on EFV.
EFV increased in the menstrual phase above the values obtained in the pre- and the post-menstrual phases; the average of EFV during men-struation was 286.8 mV, while those in the pre- and the postmenstrual phases were 124.4 and 124 mV respectively. The difference between the values for the menstrual and the non-menstrual phases was found statistically significant. This fact provides further evidence that the method of electric flicker is a sensitive method to find subnormal states of subjects.
We are greatly indebted to Prof. K. Motokawa for his many valuable discussions and kind guidance.
