https://bmcbiol.biomedcentral.com/articles/10.1186/s12915-02...
In terms of NCC of memory, the papers beginning around the mid 2000s are seismic. The encoding and retrieval are subtly varied depending on the lab.
https://pubmed.ncbi.nlm.nih.gov/17425535/
Also the cohort studies are immensely helpful, dementia, Down's syndrome let us see the impairment.