This commonly happens to boxers, football players, and others who engage in contact sports where they may suffer a blow to the head. For example, a person in a car crash may hit their head and lose memories of the few minutes before and after the crash. LRA is a temporary loss of the ability to store new memories as a result of brain injury. However, some patients never recover past memories and have to start new lives with new identities.ĭr Myers points out that there is a third 'general class of amnesia' sometimes called “Limited Retrograde Amnesia” (LRA). Some researchers question whether it even exists at all given the fact that some patients may fake amnesia to avoid personal difficulties and many patients suddenly recover all their past memories. It is believed that PA results from psychological stress (for example, traumatic events). This is the loss of one’s identity and personal history without obvious brain injury. The second is Psychogenic Amnesia (sometimes called Traumatic Amnesia) (PA).

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