Localization of NR2B in the insular cortex.A, Dark-field picture of a coronal section showingin situ hybridization with an RNA-labeled probe complementary to a C-terminal sequence of NR2B. Scale bar, 500 μm.B, A coronal section of the insular cortical area of rat brain after immunocytochemistry performed with αNR2B. In bothA and B, the arrowindicates the rhinal fissure. Scale bar, 150 μm. C, A typical multipolar neuron stained for αNR2B in the insular cortex. Scale bar, 20 μm.