Inferred network

R(Retina) → AHA(Anterior hypothalamic area)
AHA(Anterior hypothalamic area) → PAG(Periaqueductal gray)
PAG(Periaqueductal gray) → MPN(Medial preoptic nucleus)
MPN(Medial preoptic nucleus) → LHA(Lateral hypothalamic area)

Support information about direct projections from Retina to Anterior hypothalamic area:
Sending structure Receiving structureStrength of projection Type of connectionTechniqueGeneral descriptionCollatorAssociated reference
RetinaAnterior hypothalamic area moderate/strongnot knownCholera toxin conjugated to HRP
Case pg308, fig12,15. Soma notes 2 adult male hooded rats and 5 adult male albino rats were used. each received an injection of CT-HRP into the posterior chamber of the eye.. Terminal notes retinohypothalamic tract 3 components: 2) extension of SCN axonal plexus into the AHA and the RCA. this is sparse rostrally and grows increasingly dense caudally, where it extends to a wide zone caudal to the SCN including AHA and RCA.
Johnson RF, Morin LP, Moore RY., 1988
RetinaAnterior hypothalamic area moderatenot knownCholera toxin conjugated to HRP
Case pg348,350, fig3k-p. 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 swept dorsally throught the central part of the anterior hypothalamic area where it began to disperse. terminals evident in med. anterior and central anterior hypothalamic areas..
Levine JD, Weiss ML, Rosenwasser AM, Miselis RR., 1991

Support information about direct projections from Anterior hypothalamic area to Periaqueductal gray:
Sending structure Receiving structureStrength of projection Type of connectionTechniqueGeneral descriptionCollatorAssociated reference
Anterior hypothalamic areaPeriaqueductal gray moderatenot knownHRP
Case pg139, fig4, table2. Soma notes not specified.. Terminal notes HRP inj.
Beitz AJ., 1982
Anterior hypothalamic areaPeriaqueductal gray moderatenot knownPHAL
Case pg233-4. Soma notes PHA-L inj. Terminal notes not specified..
Simerly RB, Swanson LW., 1988
Anterior hypothalamic areaPeriaqueductal gray lightnot knownfluorescent tracers
Case pg240. Soma notes The anterior hypothalamic area contained the highest concentration of retrogradely labeled neurons in the rostral hypothalamus. True blue labeled neurons filled the entire AHA. Contra AHA also contained many retrogradely labeled neurons, i:c=4:1. Terminal notes 3 injs were placed at different rostrocaudal levels within periaqueductal gray. E18 most rostral, E53 most caudal. E31 immediately btwn these 2..
Watts AG, Swanson LW., 1987

Support information about direct projections from Periaqueductal gray to Medial preoptic nucleus:
Sending structure Receiving structureStrength of projection Type of connectionTechniqueGeneral descriptionCollatorAssociated reference
Periaqueductal grayMedial preoptic nucleus existsnot knowntrue blue/immunohistochemistry
none provided
Simerly R.B., Swanson L.W., Gorski R.A., 1984

Support information about direct projections from Medial preoptic nucleus to Lateral hypothalamic area:
Sending structure Receiving structureStrength of projection Type of connectionTechniqueGeneral descriptionCollatorAssociated reference
Medial preoptic nucleusLateral hypothalamic area moderatenot knownHRP/WGA
Case table1. Soma notes WGA-HRP inj. Terminal notes lateral hypothalamic nucleus.
Chiba T, Murata Y., 1985
Medial preoptic nucleusLateral hypothalamic area existsnot knownautoradiography
none provided
Swanson L.W., 1976
Medial preoptic nucleusLateral hypothalamic area existsnot knownPHAL
earlier: Swanson JCN 167:227, 1976. 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