| List of regions which send connections to: SN |
|
| Primary motor area (MOp) |
| Secondary motor area (MOs) |
| Nucleus accumbens (ACB) |
| Pallidum (PAL) |
| Globus pallidus (GP) |
| Lateral dorsal nucleus of thalamus (LD) |
| Posterior complex of the thalamus (PO) |
| Ventral posterior complex of the thalamus (VP) |
| Subparafascicular nucleus (SPF) |
| Lateral hypothalamic area (LHA) |
| Medial preoptic area (MPO) |
| Medial preoptic nucleus (MPN) |
| Superior colliculus (SC) |
| Parabrachial nucleus (PB) |
| Central gray of the brain (CGB) |
| Laterodorsal tegmental nucleus (LDT) |
| Dorsal tegmental nucleus (DTN) |
| Periaqueductal gray (PAG) |
| Ventral tegmental area (VTA) |
