Hippocampally-Dependent Consolidation in a Hierarchical Model of Neocortex

Part of Advances in Neural Information Processing Systems 13 (NIPS 2000)

Bibtex Metadata Paper


Szabolcs Káli, Peter Dayan


In memory consolidation, declarative memories which initially require the hippocampus for their recall, ultimately become independent of it. Consolidation has been the focus of numerous experimental and qualita(cid:173) tive modeling studies, but only little quantitative exploration. We present a consolidation model in which hierarchical connections in the cortex, that initially instantiate purely semantic information acquired through probabilistic unsupervised learning, come to instantiate episodic infor(cid:173) mation as well. The hippocampus is responsible for helping complete partial input patterns before consolidation is complete, while also train(cid:173) ing the cortex to perform appropriate completion by itself.