Inferred network

R(Retina) → AVP(Anteroventral preoptic nucleus)
AVP(Anteroventral preoptic nucleus) → MPNc(Medial preoptic nucleus central part)
MPNc(Medial preoptic nucleus central part) → LPO(Lateral preoptic area)
LPO(Lateral preoptic area) → LHA(Lateral hypothalamic area)

Support information about direct projections from Retina to Anteroventral preoptic nucleus:
Sending structure Receiving structureStrength of projection Type of connectionTechniqueGeneral descriptionCollatorAssociated reference
RetinaAnteroventral preoptic nucleus existsnot knownCholera toxin conjugated to HRP
Case pg351, fig5a-e. 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 Terminal label evident throughout the anteroventral preoptic nucleus..
Levine JD, Weiss ML, Rosenwasser AM, Miselis RR., 1991

Support information about direct projections from Anteroventral preoptic nucleus to Medial preoptic nucleus central part:
Sending structure Receiving structureStrength of projection Type of connectionTechniqueGeneral descriptionCollatorAssociated reference
Anteroventral preoptic nucleusMedial preoptic nucleus central part lightnot knownPHAL
none provided
Thompson R.H., Swanson L.W., 2003

Support information about direct projections from Medial preoptic nucleus central part to Lateral preoptic area:
Sending structure Receiving structureStrength of projection Type of connectionTechniqueGeneral descriptionCollatorAssociated reference
Medial preoptic nucleus central partLateral preoptic area existsnot knownPHAL
Collator note: the MPN projection has a light contralateral representation, which was not described in detail.
Simerly RB, Swanson LW., 1988

Support information about direct projections from Lateral preoptic area to Lateral hypothalamic area:
Sending structure Receiving structureStrength of projection Type of connectionTechniqueGeneral descriptionCollatorAssociated reference
Lateral preoptic areaLateral hypothalamic area lightnot knownHRP/WGA
Case pg427, fig5. Soma notes not specified.. Terminal notes WGA-HRP inj into depressor sites, core of inj site in LHAp/LHAt/VTA/SN.
Allen GV, Cechetto DF., 1993
Lateral preoptic areaLateral hypothalamic area existsnot knownautoradiography
earlier: Nauta Brain 81:319, 1958; cat, Nauta method
Swanson L.W., 1976