The association between maternal and child posttraumatic stress symptoms among families living in southern Israel: The buffering role of maternal executive functions

Posttraumatic stress disorder is a prolonged stress and anxiety response that occurs after exposure to a traumatic event. Research shows that both parental and child posttraumatic stress symptoms (PTSS) are correlated but parental executive functions (EFs) could buffer this link. EFs refers to a group of high-level cognitive processes that enable self-regulation of thoughts and actions to achieve goal-directed behaviours and can be of importance for both positive parenting interactions and effective coping skills for PTSS. Our study aimed to (1) examine the link between maternal and child PTSS and the moderating role of varying degrees of exposure to severe security threats context, and (2) to identify the moderating role of maternal EFs in this interaction, among families living in southern Israel. Our sample included 131 mothers in their second pregnancy and their firstborn children. Mothers performed computerised tasks to assess their EFs and they reported on their own and their child's PTSS. Results revealed a positive correlation between maternal PTSS and child PTSS. However, the link between maternal and child PTSS was moderated by maternal working memory updating abilities and threat context severity. Among mothers with lower updating capacities, the association between maternal and child symptoms was stronger under higher threat contexts; conversely, among mothers with higher maternal updating abilities, threat context did not modulate the link between maternal and child PTSS, suggesting a stress-buffering effect. Our study contributes to the growing literature on the significant role of parental EFs in the context of parent-child interactions.