FIGURE 13.

Neuropeptide Y neurons are densely expressed throughout the claustrum. (a) Example labeling of neuropeptide Y (NPY), somatostatin (SST), and claustrum‐prelimbic cortex (CLA_PL) neurons. (b) Expanded view from panel (a), showing the spatial relationship between NPY, SST, and CLA_PL neurons. (c) As in panel (b), but showing NPY, PV, and CLA_PL neurons. (d) Claustrum immunohistochemical labeling of SST and PV in an NPY‐hrGFP mouse. (e) As in (d), but for the somatosensory cortex of the same slice. (f) The density of NPY, SST, and PV neurons in the claustrum. (g) Venn diagram showing minimal overlap between interneuron subtypes in the claustrum. (h) The SST:PV ratio (top) and NPY:PV (bottom) ratio for the claustrum, insula (INS), piriform cortex (PC), striatum (STR), and somatosensory cortex (SSctx). **p < .01 [Color figure can be viewed at wileyonlinelibrary.com]