The brain can heal itself! It has a mechanism called neuroplasicity!

The brain can heal itself by forming new neural connections.  The new, improved connections can then create a good environment for the person to interact.  What this implies is there is improvement in the persons ability to think better (increased concentration), increased awareness of body sensations, and to not be as reactive to the environment (the ability to witness emotional states).  The trauma and the stress can improve.
LENS (Low energy neurofeedback) creates an environment in the brain, with a very low frequency,  that allows the brain to heal itself.  It does not require expensive testing, it starts out by healing the brain.  The amount of treatments varies by each individual, from 8 to 20.  This treatment can help with depression, anxiety, PTSD, autism spectrum disorders.     
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