Final answer:
Dissociative amnesia is a condition characterized by the inability to remember important personal information. It can affect the person's entire life or specific periods of time. Examples include anterograde amnesia and retrograde amnesia.
Step-by-step explanation:
Dissociative amnesia is a condition characterized by the inability to remember important personal information, such as events, circumstances, or situations from one's own life. It is different from having forgetfulness or absentmindedness. People with dissociative amnesia may experience memory loss for their entire life or for specific periods of time. One example of dissociative amnesia is anterograde amnesia, where individuals are unable to form new memories after a traumatic event or injury. Another example is retrograde amnesia, where individuals are unable to recall memories of events that occurred prior to the trauma.