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EEG coherence before and after giving birth

•Structural and functional brain changes may occur during the perinatal period.•Electroencephalography (EEG) was used to measure changing neural reorganization.•EEG coherence changed from pregnancy to the postpartum period.•EEG coherence changes were independent of maternal mood. During pregnancy an...

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Bibliographic Details
Published in:Brain research 2023-10, Vol.1816, p.148468-148468, Article 148468
Main Authors: Sandoval, Ivett Karina, Ngoh, Gwendolyn, Wu, Jia, Crowley, Michael J., Rutherford, Helena J.V.
Format: Article
Language:English
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Summary:•Structural and functional brain changes may occur during the perinatal period.•Electroencephalography (EEG) was used to measure changing neural reorganization.•EEG coherence changed from pregnancy to the postpartum period.•EEG coherence changes were independent of maternal mood. During pregnancy and the postpartum period, changes in brain volume and in motivational, sensory, cognitive, and emotional processes have been described. However, to date, longitudinal modifications of brain function have been understudied. To explore regional cortical coupling, in pregnancy and at 3 months postpartum, we analyzed resting-state electroencephalographic (EEG) coherence in the delta, theta, alpha1, alpha2, beta1, and beta2 frequency bands across frontal and parietal regions of the maternal brain (Fp1, Fp2, F3, F4, P3, and P4). We found that from pregnancy to the postpartum period, mothers showed less intrahemispheric EEG coherence between the frontal and parietal regions in the alpha1 and alpha2 bands, as well as greater interhemispheric EEG coherence between frontopolar regions in the beta2 band. These changes suggest decreased inhibition of neural circuits. These neurophysiological changes may represent an adaptive process characteristic of motherhood.
ISSN:0006-8993
1872-6240
DOI:10.1016/j.brainres.2023.148468