It Is Projected That Menstruation Has Unenthusiasticbelongings on Physiological and Psychological Correlates of Enduranceperformance. the Physiological Effects May Be Delicate, But at Best Levelsufficient to Manipulate Performance. the Psychological Correlates May Beaffected More Obviously and More Detrimentally. the Pace and the Correctness Ofa Perceptual Decision Depend on the Strength of the Sensory Stimulation. Whenincentive Strength Is High, Accuracy Is High and Response Time Is Fast; Whenincentive Strength Is Low, Correctness Is Low and Response Time Is Slow.