A biomarker of brain arousal mediates the intergenerational link between maternal and child post-traumatic stress disorder.

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Version: Final published version
License: CC BY 4.0
Serval ID
serval:BIB_72D729C43E9C
Type
Article: article from journal or magazin.
Collection
Publications
Institution
Title
A biomarker of brain arousal mediates the intergenerational link between maternal and child post-traumatic stress disorder.
Journal
Journal of psychiatric research
Author(s)
Deiber M.P., Pointet Perizzolo V.C., Moser D.A., Vital M., Rusconi Serpa S., Ros T., Schechter D.S.
ISSN
1879-1379 (Electronic)
ISSN-L
0022-3956
Publication state
Published
Issued date
09/2024
Peer-reviewed
Oui
Volume
177
Pages
305-313
Language
english
Notes
Publication types: Journal Article
Publication Status: ppublish
Abstract
This study examined whether there is a biological basis in the child's resting brain activity for the intergenerational link between maternal interpersonal violence-related posttraumatic stress disorder (IPV-PTSD) and child subclinical symptoms. We used high-density EEG recordings to investigate the resting brain activity in a sample of 57 children, 34 from mothers with IPV-PTSD, and 23 from mothers without PTSD. These children were part of a prospective, longitudinal study focusing on the offspring of mothers with and without IPV-PTSD, reporting how the severity of a mother's IPV-PTSD can impact her child's emotional regulation and risk for developing mental illness. However, we had not yet looked into potential EEG biomarkers during resting state that might mediate and/or moderate effects of maternal IPV-PTSD severity on child mental health, and in particular the risk for PTSD. The alpha band spectral power as well as the aperiodic exponent of the power spectrum (PLE; power-law exponent) were examined as mediators of maternal IPV-PTSD and child PTSD. While there was no difference in alpha spectral power between the two groups, PLE was significantly reduced in children of mothers with IPV-PTSD compared to control children, indicating cortical hyper-arousal. Interestingly, child PLE was negatively correlated with the severity of maternal IPV-PTSD, suggesting an intergenerational interaction. This interpretation was reinforced by a negative correlation between child PLE and child PTSD symptoms. Finally, causal analyses using structural equation modelling indicated that child PLE mediated the relationship between maternal PTSD severity and child PTSD. Our observations suggest that maternal IPV-PTSD has an intergenerational impact on the child neurobehavioral development through a correlated abnormal marker of brain arousal (i.e. child PLE). These findings are potentially relevant to psychotherapy research and to the development of more effective psycho-neurobehavioral therapies (i.e. neurofeedback) among affected individuals.
Keywords
Humans, Stress Disorders, Post-Traumatic/physiopathology, Female, Child, Male, Electroencephalography, Adult, Mothers, Child of Impaired Parents, Brain/physiopathology, Arousal/physiology, Longitudinal Studies, Mother-Child Relations, Biomarkers, Aperiodic slope, Intergenerational, Maternal PTSD, Neurodevelopment, Resting EEG, Spectral power
Pubmed
Web of science
Open Access
Yes
Create date
05/08/2024 16:08
Last modification date
10/09/2024 7:24
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