Childhood trauma changes the way our brain is wired. This may mean that moral responses, such as violence or kindness to others, are partly determined by brain wiring created by childhood events. Is this part of our inclination to do wrong?
A meta-study of whole brain fMRI found patterns of change in three areas: the default mode network (DMN) which is associated with self-referential thoughts, memory, and emotion processing; the central executive network (CEN) which is crucial for cognitive control, problem-solving, and regulating attention; and the posterior insula and ventral anterior insula (PI & vAI), which are involved in processing bodily sensations and emotional experiences. Those who had trauma before age 16 exhibited increased activation in the DMN and PI & vAI during tasks involving emotionally charged words and facial expressions, whereas others showed activation of the CEN instead. So emotional situations were likely to prompt internal memories and reflection rather than appropriate responses to others. Article at https://www.psypost.org/study-childhood-trauma-leads-to-lasting-brain-network-changes/ Academic paper at https://www.sciencedirect.com/science/article/pii/S2451902224000223
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