Structural organization of the zona incerta of the dog diencephalon.

Studies performed using the Nissl and Kluver-Barrera methods for analysis of the organization of fibers, morphological neuron types, and neuron density distribution were undertaken to map the zona incerta of the diencephalon of the dog brain; five individual sectors were identified, whose boundaries were further identified by histochemical detection of NADPH-diaphorase-positive neurons.