Final answer:
Retrograde amnesia is a type of amnesia where a person loses memory of events that occurred prior to brain trauma. It does not affect the formation of new long-term memories.
Step-by-step explanation:
Retrograde amnesia is a type of amnesia where a person loses memory of events that occurred prior to brain trauma. They have difficulty remembering past experiences and episodic memories. It does not affect the formation of new long-term memories. Instead, retrograde amnesia specifically impairs the retrieval of old memories.