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This video on YouTube is about a former Marine, who experienced the worst kind of arrested development as a child and then experienced post-traumatic stress disorder both as a Marine and later as a civilian.
The treatment that the Marine received worked primarily because it focus on helping him to bring to the surface repressed and painful memories. He was able to verbalize and venilate the feeling related to those memories. It didn't have anything to do with the flashing lights and audio stimulation.
He also was exposing his pain and releasing those feelings
that had been numbed. The most dangerous thing you can do is keeping
those feelings buried where they "scream" for relief and release!