Transformation of odor representations in target areas of the olfactory bulb

The organization of the olfactory bulb has been extensively studied, but much less is known about downstream areas. The authors compare activity patterns in the zebrafish olfactory bulb and two of its targets. They find that the subpallial area has overlapping odor representations, whereas those in the area homologous to the olfactory bulb are more sharply tuned.