The olfactory bulb showcases an extraordinary level of convergence, with receptor subtypes clustering in glomeruli to create a unique map for each scent. Each receptor responds to specific molecular shapes, known as Odotopes, allowing for a complex interplay of signals that activate distinct glomeruli when we smell something, like coffee. This information then disperses throughout the brain, reaching various regions, though the mapping seen in the olfactory bulb does not carry over to the rest of the brain, leaving the coding mechanisms there somewhat enigmatic.
