Nose-to-Brain Topography: Olfactory Wiring Is Systematically Mapped

A Cell study in mice shows that olfactory sensory neurons map to the brain via a topographic, non-random pattern that mirrors the nasal epithelium, with researchers linking neuron location to gene expression and finding basal stem cells preserve this organization as the epithelium regenerates, suggesting a general sensory-mapping principle and opening possibilities for smell-disorder therapies and digital scent tech.