0:00 / 0:00

Amnesia


Amnesia refers to a loss of a significant portion of memories (not just a few).

Retrograde amnesia involves an inability to remember events or memories from before the injury or illness. People usually lose only explicit/declarative memories or implicit/nondeclarative memories, not both.

Most cases of retrograde amnesia are temporally graded - people don't lose their entire past. Instead, more recent past memories are more likely to be affected than older memories.

Anterograde amnesia involves an inability to form new memories after the injury or illness. Like with retrograde amnesia, people usually lose only explicit/declarative memories or implicit/nondeclarative memories, not both

Cases of organic amnesia result from brain injuries, disease, or disorders. Cases of dissociative or functional amnesia have no identifiable neurological cause. Dissociative amnesia tends to be less permanent than organic amnesia.


Practice: Amnesia

Someone with anterograde amnesia would most likely have trouble with:

Practice: Amnesia

Raoul is a patient with retrograde amnesia. He likely has trouble with: