| List of regions which send connections to: HIP |
|
| Primary visual area (VISp) |
| Magnocellular preoptic nucleus (MA) |
| Substantia innominata (SI) |
| Anteroventral nucleus of thalamus (AV) |
| Anteromedial nucleus of thalamus (AM) |
| Anterodorsal nucleus of the thalamus (AD) |
| Lateral dorsal nucleus of thalamus (LD) |
| Paraventricular nucleus of the thalamus (PVT) |
| Parataenial nucleus (PT) |
| Nucleus reuniens (RE) |
| Lateral posterior nucleus of the thalamus (LP) |
| Dorsal part of the lateral geniculate complex (LGd) |
| Ventral part of the lateral geniculate complex (LGv) |
| Reticular nucleus of the thalamus (RT) |
| Hypothalamus (HY) |
| Lateral hypothalamic area (LHA) |
| Lateral preoptic area (LPO) |
| Posterior hypothalamic nucleus (PH) |
| Lateral mammillary nucleus (LM) |
| Medial mammillary nucleus (MM) |
| Supramammillary nucleus medial part (SUMm) |
| Supramammillary nucleus lateral part (SUMl) |
| Tuberomammillary nucleus (TM) |
| Ventral premammillary nucleus (PMv) |
| Dorsomedial nucleus of the hypothalamus (DMH) |
| Magnocellular reticular nucleus (MARN) |
| Cuneiform nucleus (CUN) |
| Mesencephalic reticular nucleus (MRN) |
| Interpeduncular nucleus (IPN) |
| Nucleus incertus (NI) |
| Dorsal nucleus raphe (DR) |
| Superior central nucleus raphe (CS) |
| Interfascicular nucleus raphe (IF) |
| Pontine central gray (PCG) |
| Locus coeruleus (LC) |
| Laterodorsal tegmental nucleus (LDT) |
| Sublaterodorsal nucleus (SLD) |
| Dorsal tegmental nucleus (DTN) |
| Periaqueductal gray (PAG) |
| Ventral tegmental area (VTA) |
| Substantia nigra reticular part (SNr) |
| Substantia nigra compact part (SNc) |
| Tegmental reticular nucleus (TRN) |
| Lateral reticular nucleus (LRN) |
