If people who have lived through traumatic or violent experiences can relive them and change the situation or their response to the situation they can come to terms with their past. Virtual technology and especially virtual reality simulations can be especially useful in cases like these and have been used to treat veterans of the Iraq war who are suffering from post-traumatic stress disorder. If the technology needed for these simulations is too expensive to be practical, mental visualization, in which the victim uses their imagination to create situations and feel as if they are gaining control of the way events play out, can be used as an alternative.