a memory unstable even if it's ten years old. could we not also influence certain patterns of disease. forgotten memories are also buried in the recesses of the brain they may not have been used for a long time they've been damaged or lost disease such as alzheimer's. so if we take letters or words. as an analogy for memory information storage a storage deficit where memory is completely lost would be analogous to a book being burned you're never going to get that information back but in a library situation you can imagine a scenario word the book is somewhere in the library but you don't know where it is you don't know how to find it so it's not that you've lost the information but you've lost the index you've lost library index how do you find that information so the question is how can we identify lost memories in our music subjects and how can we find a way of actually retrieving them for those people. researches