AN OVERVIEW OF DISSOCIATIVE AMNESIA.
formerly known as ' psychogenic
amnesia ' , dissociative amnesia is a condition in which a person cannot remember important information about his or her life . this can be limited to certain specific areas of the person's life or include much of their history , even causing problems with their sense of identity , and is said to be caused by the affects of severe stress or psychological trauma rather than the physiological or physical causes that most cases of amnesia stem from . these gaps in memory are much more severe than normal forgetfulness . dissociative amnesia can occur suddenly and may last seconds , minuets , hours or days. in very rare cases , it can occur for months or even years . this type of amnesia is one of a group of conditions called dissociative disorder.