The dentate gyrus of the hippocampus is one of the few regions of the mammalian brain where new neurons are generated throughout adulthood, This adult neurogenesis has been proposed as a novel mechanism that mediates spatial memory. However, data showing a causal relationship between neurogenesis and spatial memory are controversial. Here, we developed an inducible transgenic strategy allowing specific ablation of adult-born hippocampal neurons. This resulted in an impairment of spatial relational memory, which supports a capacity for flexible, inferential memory expression. In contrast, less complex forms of spatial knowledge were unaltered. These findings demonstrate that adult-born neurons are necessary for complex forms of hippocampus-mediated learning. © 2008 Dupret et al.
CITATION STYLE
Dupret, D., Revest, J. M., Koehl, M., Ichas, F., De Giorgi, F., Costet, P., … Piazza, P. V. (2008). Spatial relational memory requires hippocampal adult neurogenesis. PLoS ONE, 3(4). https://doi.org/10.1371/journal.pone.0001959
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