Topic: invariant subspaces

In the classical views of systems memory consolidation, memories are transferred from the hippocampus to cortex and between cortical areas for long-term storage [1]. But with the advance of neuronal recording techniques, it has become apparent that most variables of the outside world are learned and represented in multiple brain regions simultaneously. In some brain regions, these representations change dynamically while the behavior of the animal remains stable [2]. Here, we propose a population perspective on memory consolidation that reproduces many features of this “representational drift”

In the classical views of systems memory consolidation, memories are transferred from the hippocampus to cortex. But with the advance of recording techniques, it appears that many memories are learned and represented in multiple brain regions simultaneously. Moreover, representations change dynamically while the behavior of animals remains stable. Here, we propose a population perspective on memory consolidation that reproduces many features of this “representational drift”. We develop an analytically tractable model for the dynamics of memory engrams that is structurally similar to a recurren