An automatic response to protect us from harm
Our brains are designed to protect us from harm, and over time, they learn which behaviours successfully shield us from situations that may be difficult to cope with.
For instance, the brain of a child who faces repeated abuse may learn to "check out" during overwhelming situations. This dissociation becomes a survival strategy, allowing them to disconnect from their thoughts, memories, or feelings when they have no other means of emotional escape.
It can lead to a separation between the mind and body, enabling the child’s brain to compartmentalise overwhelming experiences and the associated memories.