Now, using a novel system developed at Janelia, researchers led by the Dudman Lab found that a part of the basal ganglia called the striatum is not involved in action selection as previously thought.

Behind this mechanism is dopamine released within the striatum, the largest structure of the subcortical basal ganglia, which links motor movements and motivation. Yet it has remained unclear ...

The basal ganglia are a set of subcortical structures ... Its input structure, the striatum, receives a dense dopaminergic input that is critical for reinforcement learning and whose dysfunction ...