Successful results of that study were published in the April 1995 issue of The American Journal of Psychiatry. A subsequent study, still ongoing, was designed to treat individuals with a fear of flying. In 1996 Rothbaum and Hodges formed the start-up company Virtually Better Inc. to market their virtual reality systems. The Virtual Vietnam project is being conducted at VA Hospital under the leadership of David Ready. They may have flashbacks, triggered by the sound of a helicopter, for instance.
Many people describe being emotionally numb and having problems concentrating and sleeping.