Inferred network

R(Retina) → MPO(Medial preoptic area)
MPO(Medial preoptic area) → PAG(Periaqueductal gray)
PAG(Periaqueductal gray) → CEA(Central nucleus of amygdala)
CEA(Central nucleus of amygdala) → LHA(Lateral hypothalamic area)

Support information about direct projections from Retina to Medial preoptic area:
Sending structure Receiving structureStrength of projection Type of connectionTechniqueGeneral descriptionCollatorAssociated reference
RetinaMedial preoptic area light/moderatenot knownCholera toxin conjugated to HRP
Case pg348,349, fig5d-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 anterior medial preoptic area Paper describes a.m.p.a. as separate region .
Levine JD, Weiss ML, Rosenwasser AM, Miselis RR., 1991
RetinaMedial preoptic area existsnot knownCholera toxin conjugated to HRP
Case pg351,352, 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 in preoptic region ros. to SCN. lat. component of RHT labeled terminals and fibres within or lateral to the lateral haf of the medial preoptic area. Terminal label evident in ven. 1/2 of the lateral part of the medial preoptic area.
Levine JD, Weiss ML, Rosenwasser AM, Miselis RR., 1991

Support information about direct projections from Medial preoptic area to Periaqueductal gray:
Sending structure Receiving structureStrength of projection Type of connectionTechniqueGeneral descriptionCollatorAssociated reference
Medial preoptic areaPeriaqueductal gray moderatenot knownHRP/WGA
Case table1. Soma notes periventricular grey. Terminal notes WGA-HRP inj.
Chiba T, Murata Y., 1985
Medial preoptic areaPeriaqueductal gray moderatenot knownHRP
Case pg135, fig4,5,6,10, table2. Soma notes not specified.. Terminal notes HRP inj.
Beitz AJ., 1982
Medial preoptic areaPeriaqueductal gray moderatenot knownHRP/WGA
Case table1. Soma notes WGA-HRP inj. Terminal notes Periventricular grey, reciprocated connecition, ventrodorsal fibres.
Chiba T, Murata Y., 1985

Support information about direct projections from Periaqueductal gray to Central nucleus of amygdala:
Sending structure Receiving structureStrength of projection Type of connectionTechniqueGeneral descriptionCollatorAssociated reference
Periaqueductal grayCentral nucleus of amygdala lightnot knownHRP
Case table2. Soma notes central amygdala. Terminal notes HRP inj.
Beitz AJ., 1982

Support information about direct projections from Central nucleus of amygdala to Lateral hypothalamic area:
Sending structure Receiving structureStrength of projection Type of connectionTechniqueGeneral descriptionCollatorAssociated reference
Central nucleus of amygdalaLateral 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