Childhood war exposure might shift the neural correlates of attachment-related anxiety and avoidance

A new study published in the Journal of Affective Disorders suggests that growing up in a war zone alters how a child's family environment relates to their brain connectivity. The research, led by Sarit Roizman and Tzipi Horowitz-Kraus at the Technion – Israel Institute of Technology, examined how severe environmental unpredictability impacts neural connectivity, potentially recalibrating the developing brain to its surroundings instead of causing uniform damage.

Previous studies have established links between early adversity, altered wiring between emotional brain regions and self-control, as well as differences in neural responses to stress between adults. The new study directly tests whether these patterns hold true for children exposed to war. Researchers recruited 79 children aged 5 to 13, comparing those who experienced the war with a control group who were assessed before the conflict began.

Brain scans revealed that while the war-exposed children showed no significant differences in overall attachment-related anxiety or avoidance compared to the non-exposed group, their brain connectivity patterns differed when related to attachment characteristics. In war-exposed children, higher levels of attachment anxiety and avoidance were linked to reduced communication between the cingulate cortex and the amygdala, structures involved in emotional processing.

In contrast, the same attachment difficulties in non-war-exposed children correlated with reduced connectivity between the amygdala and the hippocampus, a region crucial for memory formation. This suggests that war exposure modifies how attachment-related characteristics interact with brain systems governing thinking and emotion, potentially having long-term effects on children's mental health.