Brain wave pattern in postmenopausal women: A Quantitative EEG analysis

Authors

  • Nadia Sikder BGC Trust Medical College Hospital
  • Qazi Muhammad Saif Hasan Sharif Shaheed Syed Nazrul Islam Medical College, Kishoreganj, Bangladesh
  • Sharmin Afroz Department of Physiology, Bangladesh Medical University, Dhaka, Bangladesh
  • Sultana Ferdousi Department of Physiology, Bangladesh Medical University, Dhaka, Bangladesh
  • Shamima Sultana Department of Physiology, Bangladesh Medical University, Dhaka, Bangladesh

DOI:

https://doi.org/10.3329/jbsp.v20i2.87242

Keywords:

Post-menopause, QEEG, brain waves, absolute power

Abstract

Background: Quantitative EEG (QEEG) helps detect brain wave alterations linked to hormonal, advanced age and oxidative changes in postmenopausal women. Objective: To evaluate absolute brain wave power in postmenopausal women using  power spectral analysis of QEEG. Methods: Twenty postmenopausal women aged 55–60 years and twenty premenopausal controls aged 35–40 years were recruited. EEG recordings were obtained in a 5-minute eyes-closed resting state using Brain Tech 32+ system India. Absolute power of delta, theta, alpha and beta waves was analyzed across 22 electrodes using BT40+ software. Statistical analysis was done using Independent Samples T test to compare groups. Results:  Postmenopausal women showed significantly lower absolute power in delta, theta and alpha waves. Conversely, beta wave absolute power was significantly higher compared to premenopausal women. Conclusion: The results of this study concluded that the altered brain wave pattern of reduced alpha, delta, theta  and elevated high-frequency beta waves absolute power reflects cortical hyperexcitability and disrupted brain function in postmenopausal women.

J Bangladesh Soc Physiol 2025;20(2): 80-90

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Published

2026-02-22

How to Cite

Sikder, N., Sharif, Q. M. S. H., Afroz, S., Ferdousi, S., & Sultana, S. (2026). Brain wave pattern in postmenopausal women: A Quantitative EEG analysis . Journal of Bangladesh Society of Physiologist, 20(2), 80–90. https://doi.org/10.3329/jbsp.v20i2.87242

Issue

Vol. 20 No. 2 (2025)

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Articles

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