[Ovarian cycle and school-notes (scores) (author's transl)]

Girls 14 to 16 years of age, menstruating regularly and with a stabile cycle, were tested every school-day by a dictation in their slovakian language. Mistakes were counted and analysed statistically. The girls were interviewed about their cycle. Their capacity to write down the text correctly was different in the four phases of the cycle (P less than 0,001). Most mistakes were made in the premenstrual phase, results were found in the four days of the menstruum. Divided in terziles according to their capacity, the girls of the best terzile had their optimum in the postmenstrual phase, whereas the girls in the medium and in the lower tezile had their optimum during the menstruation.