[Neuronal correlates of the integrative activity in the monkey striatum]

The unit activity was studied in monkeys during various behavioural activities. The striatum unit responses revealed no functional specifics. Separate units reflected the character of activity in their firing rate as well as in different interrelationships between excitatory and inhibitory responses. The putamen units were shown to discriminate experimental alternatives mainly when the money arrived at a decision, and successful solving of the problem was shown to depend on the level of the discrimination. Specific corticofugal signals from different and dispersed cortical areas seem to converge while interacting at the striatum.