Inferred network

R(Retina) → MPN(Medial preoptic nucleus)
MPN(Medial preoptic nucleus) → VTA(Ventral tegmental area)
VTA(Ventral tegmental area) → AVP(Anteroventral preoptic nucleus)
AVP(Anteroventral preoptic nucleus) → 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 Ventral tegmental area:
Sending structure Receiving structureStrength of projection Type of connectionTechniqueGeneral descriptionCollatorAssociated reference
Medial preoptic nucleusVentral tegmental area 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 Ventral tegmental area to Anteroventral preoptic nucleus:
Sending structure Receiving structureStrength of projection Type of connectionTechniqueGeneral descriptionCollatorAssociated reference
Ventral tegmental areaAnteroventral preoptic nucleus lightnot knownfluorescent tracers
Case pg369-71, fig5,7?, table3. Soma notes scattered true blue labeled cells were present in POSC. Preoptic suprachiasmatic region is an ill defined area containing several distinct cell groups in periventricular zone around optic recess & rostral 3rd ventricle.. Terminal notes B1.1 received 0.2u inj of true blue into VTA. Small site included rostral VTA & extended to level of rostral interpeduncular nuc. Other fibre tracts & nuclei involved in dye site were fasciculus retroflexus, mammilotegmental tract, INC, SUM..
Faye-Lund H., 1985

Support information about direct projections from Anteroventral preoptic nucleus to Lateral hypothalamic area:
Sending structure Receiving structureStrength of projection Type of connectionTechniqueGeneral descriptionCollatorAssociated reference
Anteroventral preoptic nucleusLateral hypothalamic area existsnot knownPHAL
none provided
Thompson R.H., Swanson L.W., 2003