G Experimental scheme of pro-neurogenic fate-mapping paradigm used in H, I. 8 week-old NestinCreERT2; GFP mice were intraperitonially injected with tamoxifen for five days (10 times, every 12 h). After tamoxifen induction, runners had access to running wheels, controls were housed in standard conditions for 12 days after tamoxifen injections. 