The Miller Lab

Arimura et al compared neural responses in the globus pallidus (GP), prefrontal cortex (PFC) and premotor cortex (PMC) during a task in which a visual cue instructed a goal and then another cue instructed which action to perform.  The GP reflected the visual cue and goal as soon as the cortex.  However, action selection occurred later in the GP than cortex.  Thus, the GP seems to play a more important role in goal determination than action selection.