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Changes in cognitive and emotional processing with reproductive status
1Department of Psychology, New Mexico State University, Las Cruces 88003.
Brain, Behavior and Evolution
|January 1, 1993
Summary
Women's emotional and cognitive processing, including brain responses (event-related potentials), are influenced by menstrual phase. Hormonal changes affect how pleasantness, complexity, and eroticism are perceived.
Area of Science:
- Neuroscience
- Psychology
- Endocrinology
Background:
- Reproductive status, indicated by menstrual phase, may influence cognitive and emotional processing.
- Hormonal fluctuations throughout the menstrual cycle could impact brain activity and subjective experiences.
Purpose of the Study:
- To investigate whether emotional and cognitive processing in women are sensitive to menstrual phase.
- To examine the relationship between hormonal levels (androgens, estrogen, progesterone) and electrophysiological responses to emotional stimuli.
Main Methods:
- Collected behavioral ratings (affective scales) and electrophysiological responses (event-related brain potentials) from 30 female subjects across different menstrual phases.
- Categorized emotional pictures into five types: babies, dermatological cases, ordinary people, male models, and female models.
- Grouped subjects based on hormone-defined phases (androgen, estrogen, progesterone levels).
Main Results:
- The P3 component of event-related potentials varied significantly with menstrual phase.
- Higher progesterone levels correlated with larger P3 waves for baby and male model pictures, and decreased perceived complexity and eroticism.
- Elevated estrogen levels were associated with increased pleasantness ratings across all picture categories.
Conclusions:
- Emotional and cognitive processes are adaptively regulated by reproductive status, supporting a general proximal design.
- Menstrual phase and associated hormonal changes demonstrably influence affective perception and neural responses to emotional stimuli.
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