Fig 3. Cursor trajectories clustered through time.

We plot Monkey T’s cursor trajectories from all trials (unit: cm, screen space), with sessions separated into 4 stages and trials separated by target direction. We mark targets with grey shading. In early sessions, the cursor covered similar areas for all four directions. Through learning, trajectories become more compact (e.g. up) and occupy areas not visited in early sessions (e.g. right, down). Note that up trajectories become more consistent early in the sessions, while right trajectories become better only in late sessions.