Final answer:
The Hippocampus is responsible for laying down new memories.
Step-by-step explanation:
The part of the brain that is responsible for laying down new memories is the Hippocampus.
The Hippocampus is a region located deep within the brain's temporal lobes and plays a crucial role in the formation and consolidation of new memories.
Damage to the Hippocampus can result in difficulties in forming new memories, a condition known as anterograde amnesia.
Learn more about Hippocampus