Figure 1.

Schematic illustration of core PBWM architecture, in which prefrontal context representations of relevant prior information and current goals bias the sensory-motor mappings that are learned by posterior cortical “hidden” layers. The prefrontal context representations are updated via dynamic gating by the basal ganglia. These gating functions are learned by the basal ganglia on the basis of input from the PVLV system, which provides modulatory dopaminergic input depending on the reward value of the actions performed by the basal ganglia.