The Neural Control of Visually Guided Eye Movements
C. Cortical Mechanisms of Visually Guided Saccadic Eye Movements

To study the execution of a sequence of saccades to visual targets, two targets were presented in succession as shown in the inset of Figure 11. The duration of the targets and the interval between them was systematically varied. Performance was studied repeatedly various times after unilateral frontal eye field (FEF) and medial eye field (MEF) removal. The frontal eye field removal produced major deficits on this task. By contrast, in the absence of the medial eye fields much smaller deficits were observed that recovered rapidly.