Brain scans reveal increased reactivity in the amygdala and slower development of the prefrontal cortex, two regions that need to work together for emotional control and stress regulation.
These patterns are especially strong in girls, and often carry forward into adolescence and adulthood. The good news: these changes are not set in stone.
The brain remains plastic, and studies show that with consistent safety, warmth, and regulation, the emotion circuits can be reshaped.
Even small, repeated experiences of calm can help reverse the survival wiring and build a new baseline of emotional safety.
Sources:
Harsh parenting, amygdala functional connectivity changes across childhood, and behavioral problems
https://pmc.ncbi.nlm.nih.gov/articles/PMC11578908/
Developmental Timing of Associations Among Parenting, Brain Architecture, and Mental Health
https://jamanetwork.com/journals/jamapediatrics/article-
abstract/2825404
