AMNESIA.
Popular Forms of Amnesia
Post-traumatic Amnesia
Caused by head injury in which damage could be permanent, anterograde, or retrograde. The duration of memory loss depends on the degree of injury. Person may lose knowledge of who people are.
Anterograde Amnesia
The inability to create new memories due to brain damage. The ability to remember old memories is still there, but is reduced. Brain regions involved in this condition are the medial temporal lobe and medial diencephalon.
Retrograde Amnesia
The inability to recall memories before the onset of amnesia. Person is still able to make new memories after the incident. Caused by head trauma to parts of the brain expect the hippocampus, which is responsible for encoding new memory. Damage is usually temporary and can be treated.
Dissociative Amnesia
Caused by psychological damage to the brain. Includes repressed memories in which you are unable to recall information about traumatic events. Also includes dissociative fugue in which person is confused about his or her own identity and will travel to a new location to create a new identity for themselves.
Childhood Amnesia
Inability to remember events from one’s own childhood. Implicit memories such as learning to play the clarinet are not able to be recalled, where explicit memories such as the first day you met your best friend can be recalled and described into detail.