Schematic drawings of 20 μm rostrocaudal coronal sections illustrating the distribution and relative density of hcrt fibers in the telencephalon after immunohistochemistry for hcrt using antibody #2050. aca, Anterior commissure, anterior part;AcbC, accumbens nucleus, core; AcbSh, accumbens nucleus, shell; AI, agranular insular cortex;Cg, cingulate cortex; Cl, claustrum;CPu, caudate putamen; DEn, dorsal endopiriform nucleus; DI, dysgranular insular cortex;fmi, forceps minor of the corpus callosum;Fr, frontal cortex; gcc, genu of the corpus callosum; GI, granular insular cortex;HDB, nucleus of the horizontal limb of the diagonal band; ICj, islands of Calleja; ICjM, islands of Calleja, major island; lo, lateral olfactory tract; LSI, lateral septal nucleus, intermediate part;LSV, lateral septal nucleus, ventral part;LV, lateral ventricle; Par, parietal cortex; Par1, parietal cortex, area 1;Pir, piriform cortex; SHi, septohippocampal nucleus; TT, tenia tecta;Tu, olfactory tubercle; VP, ventral pallidum.