Observing baby or sexual videos changes the functional synchronization between the prefrontal and parietal cortices in mothers in different postpartum periods

During the postpartum period (PP), mothers are more sensitive to sensory stimuli related to babies and less sensitive to those with sexual significance. The processing of emotional stimuli requires synchronization among different cerebral areas. This study characterized the cortical electroencephalo...

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Bibliographic Details
Published in:Social neuroscience 2020-07, Vol.15 (4), p.489-504
Main Authors: Aguirre, Rosa María Hidalgo, González, Marisela Hernández, Hernández, Marai Pérez, Gutiérrez, Claudia Del Carmen Amezcua, Guevara, Miguel Ángel
Format: Article
Language:English
Subjects:
baby stimuli
breastfeeding mothers
EEG
EEG correlation
Emotions
Postpartum
prefrontal cortex
Sensory stimuli
Sexual behavior
sexual stimuli
Synchronization
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Summary:During the postpartum period (PP), mothers are more sensitive to sensory stimuli related to babies and less sensitive to those with sexual significance. The processing of emotional stimuli requires synchronization among different cerebral areas. This study characterized the cortical electroencephalographic (EEG) correlation in mothers from 1½ to 3 months (PP1), 4 to 5½ months (PP2) and over 6½ months, postpartum (PP3) while observing two videos: one of a baby (BV) and one with sexual content (SV). EEGs were recorded from the frontopolar, dorsolateral and parietal cortices. All three groups rated the BV as pleasant, but only PP3 reported higher sexual arousal with the SV. While watching the BV, PP1 showed a higher correlation among all cortical areas; PP2 manifested a decreased correlation between the prefrontal and parietal cortices, likely associated with the lower emotional modulation of the BV; and PP3 presented a higher synchronization among fewer cortical areas, probably related to longer maternal experience. These cortical synchronization patterns could represent adaptive mechanisms that enable the adequate processing of baby stimuli in new mothers. These data increase our knowledge of the cerebral processes associated with distinct sensitivities to the emotional stimuli that mothers experience during the PP.
ISSN:1747-0919
1747-0927
DOI:10.1080/17470919.2020.1761447