To The Editor: The recent article by Steven Southwick, M.D., and colleagues R391559BCEBFFBF on the consistency of memory for combat-related traumatic events among veterans of Operation Desert Storm raises a number of issues that we believe deserve further investigation. Perhaps the most important of these is the determination of which memory report is more accurate. This is the key to understanding whether it is the case that traumatized individuals initially suffer acute dissociation and memory disturbance and later recover true memories or, conversely, that their initial memories are veridical and complete and that distortions, pseudomemories, or both creep in with time and postevent information. Given that it was not possible for Southwick et al. to assess the accuracy of recall in their study, future research should identify traumatic situations for which accuracy can be verified and conduct multiple assessments of the recall of these traumatic events. In evaluating the accuracy of recall over time, such research should distinguish "false negatives" (i.e., failing to recall traumatic events that were experienced, possibly because of dissociation) from "false positives" (i.e., reporting traumatic events that were not experienced, possibly because of subsequent exposure to information about the traumatic event).