Inferred network

R(Retina) → MPN(Medial preoptic nucleus)
MPN(Medial preoptic nucleus) → DR(Dorsal nucleus raphe)
DR(Dorsal nucleus raphe) → PL(Prelimbic area)
PL(Prelimbic area) → 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 Dorsal nucleus raphe:
Sending structure Receiving structureStrength of projection Type of connectionTechniqueGeneral descriptionCollatorAssociated reference
Medial preoptic nucleusDorsal nucleus raphe lightnot knownHRP/WGA
Case table1. Soma notes WGA-HRP inj. Terminal notes not specified..
Chiba T, Murata Y., 1985
Medial preoptic nucleusDorsal nucleus raphe existsnot knownPHAL
ipsilateral. 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 Dorsal nucleus raphe to Prelimbic area:
Sending structure Receiving structureStrength of projection Type of connectionTechniqueGeneral descriptionCollatorAssociated reference
Dorsal nucleus raphePrelimbic area lightnot knownPHAL
projection from the caudal pole of DR
Goto M., Swanson L.W., Canteras N.S., 2001
Dorsal nucleus raphePrelimbic area strongnot knownFluorogold
Subcortically, the DR was densely labeled; MR annd LC were moderately labeled (Fig. 5u–x). Collator note: Swanson Atlas Levels 42-52.
Hoover W.B. & Vertes R.P, 2007

Support information about direct projections from Prelimbic area to Lateral hypothalamic area:
Sending structure Receiving structureStrength of projection Type of connectionTechniqueGeneral descriptionCollatorAssociated reference
Prelimbic areaLateral hypothalamic area existsnot knownautoradiography
Case pg56, fig2. Soma notes 3H A.A. inj.. Terminal notes not specified..
Beckstead RM., 1979
Prelimbic areaLateral hypothalamic area lightnot knownPHAL
Case pg216, fig4. Soma notes PHA-L inj, {3,4,5,6} caudal/central PL. Terminal notes perifornical area.
Sesack SR, Deutch AY, Roth RH, Bunney BS., 1989
Prelimbic areaLateral hypothalamic area moderatenot knownPHAL
Collator note: injection with PHAL shown in Fig. 4A, in PL, which corresponds to Swanson Atlas Level 9. The injection covers the entire PL with possible extension into the ventral ACd.
Fisk G.A. & Wyss J.M., 2000
Prelimbic areaLateral hypothalamic area light/moderatenot knownradioactive aminoacids
Collator note: continuous terminal field from the external capsule to the fornix, and ventrally up to the optic tract, covering amygdalar nuclei and LHA in this level. See Fig. 2D, Swanson Atlas Levels 26-27.
Beckstead RM., 1979