Lithium-induced effects on adult hippocampal neurogenesis are topographically segregated along the dorso-ventral axis of stressed mice

► Lithium increases hippocampal cell proliferation in stressed BALB/c mice. ► This effect occurs preferentially in the vHi but not dHi and in stressed mice only. ► Increases in proliferation are secondary to reduced survival of newly-born cells. ► Lithium reduced cell survival in the vHi under stress conditions only.