Some view the hippocampus as supporting episodic memory, whereas others
believe that the hippocampus supports spatial navigation. How do we reconcile the
episodic memory and spatial navigation views of hippocampal function? Here I will
discuss evidence that the hippocampus is critical for memory of order of events in
unique experiences, even when space is not involved. Furthermore, I will describe
recent evidence that hippocampal time cells (as contrasted with place cells)
encode specific moments in the course of temporally extended experiences in both
spatial and non-spatial memory. These findings support an emerging view that the
hippocampus supports episodic memory by creating a scaffolding for the
organization of events within their spatial and temporal context.