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Changes in cognitive task performance across the menstrual cycle

D M Broverman, W Vogel, E L Klaiber

Journal of Comparative and Physiological Psychology

|August 1, 1981

Summary

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Menstrual cycle phases, specifically estrogen and progesterone levels, impact cognitive task performance. Precise timing of testing relative to ovulation is crucial for observing these hormone-driven cognitive shifts.

Area of Science:

Neuroscience
Endocrinology
Cognitive Psychology

Background:

Hormonal fluctuations during the menstrual cycle, particularly estrogen and progesterone, are hypothesized to influence cognitive functions.
Estrogen is associated with enhanced performance on automatized tasks, while progesterone may counteract this effect.

Purpose of the Study:

To investigate the differential effects of menstrual cycle phase-specific hormone changes on cognitive task performance.
To determine if estrogen peaks (midcycle) and progesterone peaks (postovulatory phase) differentially affect automatized and perceptual-restructuring tasks.

Main Methods:

Studied 87 regularly menstruating undergraduate women, testing them twice during their cycle (around Day 10 and Day 20).
Utilized basal body temperature records to estimate ovulation and hormonal phases.

Related Experiment Videos

Compared cognitive task performance between different cycle phases, accounting for ovulatory status.

Main Results:

No overall significant difference in task performance between Day 10 and Day 20 for women who ovulated.
However, performance shifts aligned with predictions when testing was precisely timed relative to the estimated preovulatory estrogen peak (thermal nadir) and postovulatory progesterone peak (thermal peak).
Significant predicted changes occurred in three of four tasks for subjects tested close to these hormonal peaks.

Conclusions:

The study supports the hypothesis that menstrual cycle hormonal fluctuations affect cognitive performance.
Precise timing of cognitive testing in relation to ovulation and hormonal peaks is critical for detecting these effects.