Final answer:
The hippocampus is the brain structure essential for laying down new explicit memories.
Step-by-step explanation:
The brain structure shown to be essential in laying down new explicit memories of names, images, and events is the hippocampus. The hippocampus is a small structure located in the medial temporal lobe of the brain. It plays a crucial role in the formation and consolidation of long-term memories, particularly those that are consciously experienced and can be verbally described.
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