Structural basis of the involvement of the striopallidum and pedunculopontine tegmental nucleus in the organization of adaptive behavior.

Retrograde axonal transport was used to study the organizational characteristics of the afferent and efferent projection systems of individual substructures of the pedunculopontine tegmental nucleus and the functionally diverse (motor, limbic) areas of structures in the striopallidum. The structural bases of the conduction of functionally diverse information and its integration in the basal ganglia system and tegmental area were evaluated. The morphological data obtained here aid our understanding of the morphofunctional bases of the interaction of these structures and their involvement in adaptive behavior.