The core, a t.hay. and a t.v., located in the pretectal region on the border between the mesencephalon and the diencephalon.
The nucleus gives rise to the inner/medial tegment pathway that ends in the inner accessory lower olive core. The internal accessory lower olive core, in turn, transmits olivo-cerebellar filaments to the spinocerebellum.
The Darkschewitsch nucleus is part of the complex network that controls the coordination between the activity of the cerebellar nuclei and the inflow of climbing wire signals to the cerebellum.