The Recovered Memory Project collects and disseminates information relevant to the debate over this question. This debate has focused on recovered memories of childhood sexual abuse. But the phenomenon extends to other traumas, such as suffering physical abuse or witnessing a murder.

Almost everyone would agree that such traumas are normally remembered. That is, most people who experience such a trauma are likely to remember it, perhaps vividly and instrusively. But do some people forget completely? A variety of scientific sources say “yes.”  The purpose of this website is to bring together the extensive and growing evidence of cases ignored or overlooked by self-described skeptics of various sorts.

http://blogs.brown.edu/recoveredmemory

Really interesting— definitely worth a look for those of you who have experienced this. Thanks andorradesign!