Four Vietnam veterans diagnosed with post-traumatic stress disorder we
re treated with 12 sessions of eye movement desensitization and reproc
essing (EMDR), targeting their combat memories. An extensive multimoda
l assessment battery showed very substantial clinical improvement for
three of the veterans along a number of psychological dimensions that
characterize the disorder, but not along several physiological paramet
ers. A fourth veteran showed only very modest changes. The results are
discussed in terms of the importance of several issues, including num
bers of treatment sessions and differential effects of treatment on co
gnitive-behavioral and physiological symptoms.