Dentate gyrus (DG) is critical for memory formation in the hippocampus but its role in memory retrieval is unclear. Here, Gross and colleagues, show that granule cells in DG are not required for memory retrieval but for maintenance, and inhibiting them with a drug leads to rapid loss of memory.
- Noelia Madroñal
- José M. Delgado-García
- Agnès Gruart