[The structure of the neuronal activity of the caudate nucleus in monkeys making a decision and realizing the motor program in different variants of a task of delayed spatial choice].

Spatial-selective neurons were found in the monkey caudate nucleus, the neurons being divided into two groups: one of them reflects the location of conditioned signals, the other--the direction of future motor response. The decision-making process is reflected in the unit activity in two aspects: as formation or choice of a concrete motor program, and as a transitory moment from instructive to executive phase of the behaviour.