Inferred network

R(Retina) → MPN(Medial preoptic nucleus)
MPN(Medial preoptic nucleus) → LC(Locus coeruleus)
LC(Locus coeruleus) → 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 Locus coeruleus:
Sending structure Receiving structureStrength of projection Type of connectionTechniqueGeneral descriptionCollatorAssociated reference
Medial preoptic nucleusLocus coeruleus lightnot knownHRP/WGA
Case table1. Soma notes WGA-HRP inj. Terminal notes not specified..
 Chiba T, Murata Y., 1985

Support information about direct projections from Locus coeruleus to Substantia nigra compact part:
Sending structure Receiving structureStrength of projection Type of connectionTechniqueGeneral descriptionCollatorAssociated reference
Locus coeruleusSubstantia nigra compact part moderatenot knownfluorescent tracers
Case pg334-5, fig17, VTA71, table2. Soma notes not specified.. Terminal notes TB & bizbenzimide injs, see fig6H.
 Swanson LW., 1982

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