This was supported by HM who only suffered anterograde amnesia, as he could remember childhood memories but could not remember what happened immediately before the surgery. Well, according to the English dictionary eyewitness identification is a person who actually sees some act, occurrence, or thing and can give a firsthand account of it: Eyewitness identification is also known as Eyewitness ID.
Impairments in in temporal lobes, hippocampus and diencephalon cause quantitative memory disorders, eg. It is a part of the means by which humans function. In some films, the screenwriter chooses to portray one of the many psychological disorders.
The last point of consideration for the life outcomes of AA patients is the paradoxical nature of their suffering. The person will remember data and events that happened before the injury.
However both these type of memories are dependent on specific area neo-cortical zones within the frontal and temporal lobes for information retrieval.