Model of the function of the neostriatum and its neuronal activity during behavior in monkeys.

Experiments with simultaneous recording of six neostriatum neurons showed that the neurons of this structure are involved in the organization of all stages of behavior. A defined combination of neuronal activity corresponded to each action of the animal. The responses of individual neostriatal neurons were not entirely determined by the action being carried out at a particular moment, but reflected a wider aspect of the overall activity of the animal. These data, along with the established properties of neuronal responses in the neural network model, indicate that the integration of afferent signals in the neostriatum and their distribution to efferent connections is based on network mechanisms of neuronal interactions.