Recollections of traumatic events can continue to resurface in the brain long after the moment has passed, leading to conditions such as post-traumatic stress disorder (PTSD).
in the memory's formation, the physical nature of fear's long-term storage as a 'remote memory' has remained elusive.
By understanding more about how these traumatic flashbacks get embedded, we might be able to improve therapies and treatments for those suffering them. An electric shock served as a memory fear event for the transgenic mice. When the test subjects returned to the location of the shock a month later, they froze, indicating that remote fear memories stored somewhere in the brain were indeed being recalled.
"It is the prefrontal memory circuits that are progressively strengthened after traumatic events and this strengthening plays a critical role in how fear memories mature to stabilized forms in the cerebral cortex for permanent storage,""Using a similar mechanism, other non-fear remote memories could also be permanently stored in the PFC."
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