Retrograde vs. anterograde amnesia
After a head injury, a patient cannot remember the months before the accident but forms new memories normally. This is:
Answer B: explanation for every choice
A
Anterograde amnesia is the inability to form new memories after the injury.
B
Correct. Retrograde amnesia is loss of memories formed before the injury.
C
Source amnesia is remembering information but not where you learned it.
D
Infantile amnesia is the normal inability to recall early childhood.
TakeawayRetrograde: loses the past. Anterograde: can't form new memories.
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Reviewed 2026-11-05 by a medical student. Spot an error? Report it with question ID ps105.