Trauma and the Brain: Understanding What Happens and Why You Feel Changed
After a Traumatic Event the Human Brain Physically and Chemically Changes But through Treatment Survivors Can Reverse the Process

Photo Credit: Oliver Sved/ShutterShock
May 17, 2011Theres a lot to understand about post-trauma recovery. If youre struggling with symptoms of Post-Traumatic Stress Disorder (PTSD), youre juggling many psychological and even physical symptoms while you learn to 1) grieve and let go of your former self, 2) function in a world that no longer feels safe, 3) renegotiate your relationship to who you are, other people and the universe at large.
You have to do all of this at the same time that you have to cope with how trauma changes your brain. Dont worry you can handle this process. Beginning to navigate the post-trauma maze starts with understanding basic things. Recognizing the science behind your experience will help you accept where you are and what you notice about yourself, plus give you clues about what needs to be done. Its precisely these biological changes that can lead to the development of PTSD.
Did you know that the experience of trauma can actually cause neurological changes in the structure of your brain? For weeks or even years you may have been thinking youre crazy, but there are often scientific reasons for much of your behavior, including increased, diminished and killed brain regions, functions and neurons. Consider the following:
- Cant find the words to express your thoughts? Thats because the prefrontal lobe (responsible for language) can be adversely affected by trauma, which gets in the way of linguistic function.
- Cant regulate your emotions? How could you when the amygdala (responsible for emotional regulation) is in such overdrive that in some PTSD survivors it actually enlarges.
- Having problem with short-term memory loss? Of course you are: studies show that in some PTSD survivors the hippocampus (responsible for memory and experience assimilation) actually shrinks in volume.
- Always feeling frightened no matter what you do? Understandable when your medial prefrontal cortex (responsible for regulating emotion and fear responses) doesn't regulate itself or function properly after trauma.
- the brain gives signals of trauma
- the brain's main function is to get through the event
- the brain helps us survive by activating biologic reactions involved in helping us mount the fight/flight response
- the sympathetic nervous system releases adrenalin (your heart racing and the acceleration of your breathing signifies the release of adrenalin, which readies you to move)
- the brain lowers the chemicals released to help us with regular functions (parasympathetic nervous systems energy is diverted to help you cope with surviving)
- hormones are released to reign in stress response to stop long term damage to your body.
- Brain Plasticity: What is It? Simple breakdown of concepts.
- Neuroplasticity and the Brain that Changes Itself Overview and further resources.
- Amazing Findings of Neuroplasticity Video about neuroplasticity, how it works, and research.
- Clinical Applications of Neuroplasticity Short video about how and where we can use the concept of neuroplasticity to heal.
- Brain Plasticity DiscoveryChannel video up close on how the loss of one half of the brain is compensated for by the other half.
- The Brain That Changes Itself, by Norman Doidge.




