When a person has a traumatic experience, it can linger in the brain. Studies have shown that one of the reasons that people experience issues like PTSD is because their mind struggles to process the emotional significance of the trauma, and the trauma then lingers in the mind, bouncing around and causing anxiety and distress.
It’s one of the primary reasons that EMDR has been so successful at treating PTSD. EMDR helps a person process the event in a safe setting, helping move it to the long term storage part of the brain and reducing the distress that it causes.
Still, when we say something is “stuck” in the brain, what does that mean? Where is it stuck?
Let’s talk about it.
Where a Trauma is Stuck in the Mind
One thing to understand is that when we say that a traumatic event is “stuck” in the brain, this isn’t metaphorical. There are specific brain regions involved in how trauma is recalled, stored, and processed. During a traumatic events, those systems are overwhelmed and dysregulated, causing trauma to feel like it’s ongoing.
For those that have this unresolved trauma, it’s stored in several places. These include:
- Amygdala – The Amygdala is what stores the emotional intensity of the event. During a traumatic event, it tags the memory as “dangerous,” which is partially what leads to these feelings of being on high alert (even in safe environments), cause panic at otherwise mild triggers, and lead to heightened anxiety and stress. The amygdala also has no concept of time, which may explain why a person feels like they’re still living the event.
- Hippocampus – While the amygdala governs emotion and alertness, the hippocampus helps form and organize memories, placing them in a logical timeline. Under extreme stress, hippocampal activity can become impaired. Traumatic experiences may be stored as sensory fragments or disorganized impressions, rather than coherent, narrative memories. This may cause flashbacks, intrusive images, and more. There is even research that shows that the hippocampus may shrink after a traumatic event, making it harder to process additional memories.
- Prefrontal Cortex – In a healthy stress response, the prefrontal cortex helps regulate the amygdala and integrate emotional memory with reasoning. But during trauma – or when trauma has been left unprocessed – this area often becomes underactive. The prefrontal cortex helps distinguish between a real threat and a perceived one. When it is dysregulated, the brain struggles to tell the difference. It also has a difficult time with decision making or accessing calming thoughts.
When we say that trauma gets “stuck” in the brain, it’s not entirely an exaggeration. It may not be stuck in the literal sense, but the way that it fragments and deregulates the brain’s functions means that it’s always bouncing around in there, causing ongoing issues. Addressing the trauma then requires figuring out how to help the brain process it the way it would process any event – helping it get unstuck.
Processing Trauma to Move Forward
What makes trauma different from other negative experiences is not only the intensity, but also the way it bypasses normal memory systems. If the brain doesn’t fully process and integrate the experience, it may remain stored in a raw, emotionally charged form – especially in the amygdala and sensory systems. These unprocessed fragments can be reactivated by smells, sights, sounds, or even thoughts that are only loosely related to the original event.
Therapies such as EMDR (Eye Movement Desensitization and Reprocessing), somatic experiencing, and trauma-informed cognitive behavioral therapy work by helping the brain complete the processing of these memories. The goal is to shift the trauma from an ongoing alarm to something that is recognized as part of the past.
Even if trauma feels deeply embedded, it does not have to stay that way. With the right support, the brain can begin to rewire and recover – moving the trauma out of a reactive loop and into long-term memory where it no longer dictates how we feel in the present.
If you’re struggling with trauma, reach out to Flourish Psychology today. Let’s have our team help you process trauma, using EMDR and other therapies to help you move forward. Contact us today to get started.