There's a Nobel Prize waiting for this answer's author. We currently have evidence that memory is an emergent property of multiple neurons firing in a particular matrix - which is likely to be "holographic". If you've ever seen a hologram - it appears to be made of in distinct wave patterns when viewed in conventional light - placed in a concentrated beam (such as a laser) of coherent light, and the 3D hologram emerges. Cut the hologram "negative" in half and repeat the experiment - the 3D image appears again - in it's entirety - except slightly less focused. You can keep cutting the hologram up to reproduce the image as a whole, but with each cut, you lose resolution - but the projection remains. This phenomenon suggests that every part of the hologram film contains the whole. Memory is thought to work on a similar principle.