We do not understand memory of humans nor of mices nor of C.elegans. The question of the neural code is an unsolved problem with close to zero progress. However

We do not understand memory of humans nor of mices nor of C.elegans. The question of the neural code is an unsolved problem with close to zero progress. However we don't need to, The regions and deficits in memory processing are highly preserved/correlated between mammals. They are many potent Nootropics for memory, such as Dihexa and prl, those are called hypermnesics. A classical one is choline, found in eggs and overlap with the nicotine impact on intelligence