Types of Amnesia


Anterograde amnesia - Inability to remember ongoing events after the incidence of trauma or the onset of the disease that caused the amnesia.

Emotional/hysterical amnesia (also known as fugue, dissociative, functional, or psychogenic amnesia) - Memory loss caused by psychological trauma; usually a temporary condition. Individuals may run away from familiar surroundings.

Lacunar amnesia - Inability to remember a specific event.

Korsakoff syndrome - Memory loss caused by chronic alcoholism

Posthypnotic amnesia - Memory loss sustained from a hypnotic state;
can include inability to recall events that occurred during hypnosis or
information stored in long-term memory.

Retrograde amnesia - Inability to remember events that occurred
before the incidence of trauma or the onset of the disease that caused
the amnesia.

Transient global amnesia - Spontaneous memory loss that can last
from minutes to several hours; usually seen in middle-aged to elderly
people.

Source: Stedman’s Medical Dictionary