[The topical organization of the nuclear projections of the amygdaloid body, the ventral tegmental field and the substantia nigra into the striopallidum of the cat].

The work has generalized and compared results of studying the topical organization of projections of the amygdaloid body, ventral tegmental area and substantia nigra in the extrapyramidal system of the cat's brain. Methods of retrograde axon transport of horseradish peroxidase and fluochrome were used. In the basal ganglia the limbic and motor areas were found with prevailing projections from structures belonging to the limbic system or from the formations bearing a relation to motor activity. Parallel with this, in considerable areas of the basal ganglia there occur overlapping projection fields of the axons belonging to neurons of the both structures. This fact as well as the widely represented in the striopallidal system divergence of axons of neurons belonging to many structures are discussed in association with the hypothesis of the interaction of the limbic and motor systems in the basal ganglia. General features found in the topical organization of projections from the structures under investigation onto the striopallidum nuclei and specific features for each of the nuclei are discussed in connection with similar and different manifestations of behavioral reactions or clinical disturbances in neurological diseases.