Inferred network

R(Retina) → MPN(Medial preoptic nucleus)
MPN(Medial preoptic nucleus) → MRN(Mesencephalic reticular nucleus)
MRN(Mesencephalic reticular nucleus) → SNc(Substantia nigra compact part)
SNc(Substantia nigra compact part) → LHA(Lateral hypothalamic area)

Support information about direct projections from Retina to Medial preoptic nucleus:
Sending structure Receiving structureStrength of projection Type of connectionTechniqueGeneral descriptionCollatorAssociated reference
RetinaMedial preoptic nucleus light/moderatenot knownCholera toxin conjugated to HRP
Case pg348,349, fig5a-f. Soma notes 36 female Sprague-Dawley rats weighing 200-350g. 10 microliters of CT-HRP(.20%-.40%) were injected into one eye ?behind the lens into the vitreous chamber of the eye. pressure injection over 1 min. Terminal notes Medial component of the RHT included labeled fibres and terminals found near the midline involved the medial half of the medial preoptic area terminals evident in the ventral part of the medial preoptic nucleus.
Levine JD, Weiss ML, Rosenwasser AM, Miselis RR., 1991

Support information about direct projections from Medial preoptic nucleus to Mesencephalic reticular nucleus:
Sending structure Receiving structureStrength of projection Type of connectionTechniqueGeneral descriptionCollatorAssociated reference
Medial preoptic nucleusMesencephalic reticular nucleus existsnot knownPHAL
caudolaterodorsal. Collator note: repeats not included from Swanson, Mogenson, Gerfen, & Robinson Brain Res. 295:161-178, 1984.
Swanson L.W., Mogenson G.J., Simerly R.B., Wu M., 1987

Support information about direct projections from Mesencephalic reticular nucleus to Substantia nigra compact part:
Sending structure Receiving structureStrength of projection Type of connectionTechniqueGeneral descriptionCollatorAssociated reference
Mesencephalic reticular nucleusSubstantia nigra compact part lightnot knownHRP
Case pg109, table1, fig1. Soma notes Labeled perikarya in low to moderate density are found in the ipsilateral MTNd, VTRZ, nucleus paranigralis & compact & reticular portions of substantia nigra. Terminal notes The portion of an injection site which would retrogradely transport HRP from the pars medialis of the deep mesencephalic nucleus is illustrated in fig1B.
Giolli RA, Blanks RH, Torigoe Y, Williams DD., 1985

Support information about direct projections from Substantia nigra compact part to Lateral hypothalamic area:
Sending structure Receiving structureStrength of projection Type of connectionTechniqueGeneral descriptionCollatorAssociated reference
Substantia nigra compact partLateral hypothalamic area existsnot knownautoradiography
Case pg200, fig4. Soma notes 3H A.A. inj into medial part, slight involvement of SNr/VTA. Terminal notes not specified..
Beckstead RM, Domesick VB, Nauta WJ., 1979