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Brain Waves

Brain Waves

Brain waves are electrical signals generated by the neurons in the brain, which are regularly monitored to measure mental activities. Brain waves and their frequency ranges can be measured using an electroencephalogram or EEG. There are four main types of brain waves, each with distinct characteristics:

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EEG coherence before and after giving birth.

Ivett Karina Sandoval¹, Gwendolyn Ngoh¹, Jia Wu¹

¹Yale Child Study Center, Yale University, New Haven, CT, USA.

|June 19, 2023

Summary

Maternal brain function changes after childbirth. Study shows reduced frontal-parietal EEG coherence in alpha bands and increased frontopolar EEG coherence in beta bands postpartum, suggesting neural adaptation to motherhood.

Keywords:

EEG coherence Mothers Postpartum Pregnancy

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Preterm EEG: A Multimodal Neurophysiological Protocol

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Published on: February 18, 2012

Area of Science:

Neuroscience
Maternal Health
Cognitive Science

Background:

Pregnancy and postpartum involve significant brain changes affecting various processes.
Longitudinal studies on maternal brain function modifications remain under-explored.

Purpose of the Study:

To investigate longitudinal changes in maternal brain function.
To analyze regional cortical coupling using electroencephalography (EEG) coherence during pregnancy and postpartum.

Main Methods:

Resting-state EEG coherence was analyzed in delta, theta, alpha1, alpha2, beta1, and beta2 frequency bands.
EEG data were collected from frontal and parietal regions (Fp1, Fp2, F3, F4, P3, P4) during pregnancy and 3 months postpartum.

Main Results:

A decrease in intrahemispheric EEG coherence between frontal and parietal regions was observed in the alpha1 and alpha2 bands from pregnancy to postpartum.
An increase in interhemispheric EEG coherence between frontopolar regions in the beta2 band was noted postpartum.

Conclusions:

Postpartum changes in EEG coherence suggest decreased neural circuit inhibition.
These neurophysiological shifts may indicate an adaptive process related to motherhood.