Inferred network

R(Retina) → PVH(Paraventricular nucleus of the hypothalamus)
PVH(Paraventricular nucleus of the hypothalamus) → 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 Paraventricular nucleus of the hypothalamus:
Sending structure Receiving structureStrength of projection Type of connectionTechniqueGeneral descriptionCollatorAssociated reference
RetinaParaventricular nucleus of the hypothalamus moderatenot knownCholera toxin conjugated to HRP
Case pg348, fig2. 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: a few fibres were seen in the PVN in some rats but this label was not consistently evident.
 Levine JD, Weiss ML, Rosenwasser AM, Miselis RR., 1991

Support information about direct projections from Paraventricular nucleus of the hypothalamus to Locus coeruleus:
Sending structure Receiving structureStrength of projection Type of connectionTechniqueGeneral descriptionCollatorAssociated reference
Paraventricular nucleus of the hypothalamusLocus coeruleus existsnot knownneurophysinI
no description provided
 Swanson L.W, 1977

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