Grouping and representation of odorant receptors in domains of the olfactory bulb sensory map.

Individual glomeruli in the mammalian main olfactory bulb represent a single or at most a few types of odorant receptors. Thus the physical arrangement of glomeruli at the surface of the olfactory bulb can be viewed as a sensory map representing approximately 1,000 types of odorant receptors. This review summarizes the recent advance of the knowledge regarding the spatial organization of the sensory map in the main olfactory bulb.