Neuroscientists: Brain activity may mark beginning of memories

By tracking brain activity when an animal stops to look around its environment, neuroscientists can mark the birth of a memory. The hippocampus is the brain's warehouse for long- and short-term processing of episodic memories, such as memories of a specific experience like a trip to Maine or a recent dinner. What no one knew was what happens in the hippocampus the moment an experience imprints itself as a memory. New research is lending clues to what they call "spatial mapping functions" in the brain.

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