Dissociative Amnesia

In Dissociative Amnesia, the person is unable to remember personal information. They are aware that they have forgotten information, but do not know what they have forgotten. While they are able to perform simple tasks, they usually are unable to perform more complex ones such as shopping and cooking, instead wandering aimlessly. This type of amnesia usually lasts for a period of hours to days follows a severe stressor, and may be selective for a traumatic event.