The H-field is located medially in the subthalamus and is the thoroughfare for:
1/ The amygdalo-thalamic connection in the ansa peduncularis
2/ Signal flows from GPi in the ansa and fasciculus lenticularis to the thalamus
3/ Signal flows from the dentate nucleus of the cerebellum to the thalamus
4/ Medial lemnisk on the way to the thalamus