Inferred network

R(Retina) → PVH(Paraventricular nucleus of the hypothalamus)
PVH(Paraventricular nucleus of the hypothalamus) → PAG(Periaqueductal gray)
PAG(Periaqueductal gray) → DMH(Dorsomedial nucleus of the hypothalamus)
DMH(Dorsomedial nucleus of the hypothalamus) → 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 Periaqueductal gray:
Sending structure Receiving structureStrength of projection Type of connectionTechniqueGeneral descriptionCollatorAssociated reference
Paraventricular nucleus of the hypothalamusPeriaqueductal gray lightnot knownHRP
Case table2. Soma notes not specified.. Terminal notes HRP inj.
 Beitz AJ., 1982

Support information about direct projections from Periaqueductal gray to Dorsomedial nucleus of the hypothalamus:
Sending structure Receiving structureStrength of projection Type of connectionTechniqueGeneral descriptionCollatorAssociated reference
Periaqueductal grayDorsomedial nucleus of the hypothalamus existsnot knownFluorogold
earlier: Berk & Finkelstein Neuroscience 6:1601 1981 rat retrograde HRP; Kita & Oomura BRB 8: 53 1982 rat HRP; Eberhard et al. JCN 241:285 1985 rat autoradiography; Cameron et al. JCN 351:568 1995 rat PHAL
 Thompson R.H., Swanson L.W., 1998

Support information about direct projections from Dorsomedial nucleus of the hypothalamus to Lateral hypothalamic area:
Sending structure Receiving structureStrength of projection Type of connectionTechniqueGeneral descriptionCollatorAssociated reference
Dorsomedial nucleus of the hypothalamusLateral hypothalamic area existsnot knownPHAL
ispilateral; very dense perifornical terminal field just lateral to DMH that extends rostrally lateral to AHN; earlier: see Luiten & Room BR 190:321 1980 rat retrograde HRP; Ter Horst & Luiten BRB 16:231-48 1986 rat PHAL
 Thompson R.H., Canteras N.S., Swanson L.W., 1996