Figure 1.

Neuron diversity in the adult SCN. A diagram of the adult SCN, showing a subset of its many neuropeptidergic populations. Neuropeptide colors are indicated by their names, positioned around the SCN. Note that many of these neuropeptides cross or exist outside of the classical core and shell SCN subdomains. Also note that many of these neurotransmitters are at least partially co-expressed, such as in Vip/Grp neurons, though the various probable combinations are not shown here for simplicity. Adapted from Bedont et al. (2014) Graphical Abstract.