The rapid point-to-point movements of the eyes called saccades are the most commonly
made movement by humans, yet differ from nearly every other type of motor output in that
they are completed too quickly to be adjusted during their execution by visual feedback.
Saccadic accuracy remains quite high over a lifetime despite inevitable changes to the
physical structures controlling the eyes, indicating that the oculomotor system actively
monitors and adjusts motor commands to achieve consistent behavioral production. Indeed …