Schematic illustration of injection sites outside the ventral premammillary nucleus of males and females used as controls. A–E, control cases for males; F–J, control cases for females. Abbreviations: 3V, third ventricle; Arc, arcuate nucleus; DMH, dorsomedial nucleus of the hypothalamus; fx, fornix; LM, lateral mammillary nucleus; MM, medial mammillary nucleus; mt, mammillothalamic tract; PMD, dorsal premammillary nucleus.