Final answer:
The hippocampus is the brain region responsible for managing episodic and autobiographical memories, particularly involved in encoding new memories and consolidating them into long-term storage.
Step-by-step explanation:
The brain region involved in retrieving and organizing information that is associated with episodic and autobiographical memories is the hippocampus. This area of the brain, located in the temporal lobe, is crucial for the formation of new memories and is involved in the process of transferring short-term memories into long-term storage. While the amygdala is associated with emotional memory and the cerebellum with procedural memories, it is the hippocampus that plays a significant role in encoding new episodic memories and is involved in the consolidation process of long-term memory formation.