The planning/control distinction is an important tool in the study of sensorimotor transformations. However, published data from our laboratories suggest that, contrary to what is predicted by the proposed model, (1) structures in the superior parietal lobe of both monkeys and hu- mans can be involved in movement planning; and (2) fast pointing actions can be immune to visual illusions even if they are performed without vi- sual feedback. The planning–control model as proposed by Glover is al- most certainly too schematic.
