The old vision (brain = neurons => memories, rest of the body = organs which execute single or multiple functions, synchronized by the brain) is slowly fading away.

We have a lot of active neurons in the digestive system, which is in fact a second brain.

Same can be said for the heart which contains an autonomous neuronal system to control the cardiac function independently if need be.

Notions of distributed systems apply : redundancy, parallelism, coordinated autonomous systems, synchronization.

So why wouldn't memory storage be distributed too ?

Why wouldn't some memories stored in organs be retained after transplantation ?