Figure 13.

Summary of presaccadic remapping for useful stability. Solid lines denote actual positions and dotted lines the internal representations of positions. Insets depict activity in the FEF sheet. Hands show pointing behavior in the workspace, i.e., output of the BC sheet. (A) Visuomotor stability, i.e., accurate pointing, long before a saccade. (B) With presaccadic remapping, activity in the FEF sheet (dashed square in inset) represents the target at a new location (dashed circle), but when summed with predictive eye position signal (dotted line), the target representation in the workspace is stable and pointing is accurate. (C) With no presaccadic remapping, activity in the FEF sheet is unchanged. It is referenced to the updated eye position, causing an apparent shift in the target position (dashed circle) and inaccurate pointing. (D) Visuomotor stability after the saccade. Visual input from the new eye position has arrived.