The impact of real and illusory target perturbations on manual aiming

This experiment was designed to determine if real and illusory shifts in target position at movement initiation affect the same online corrective processes. Adult participants completed rapid goal-directed movements toward the vertex of a target “T” located at the midline, 25 cm distal to a small home position. At movement initiation, the target either stayed the same, shifted its real position, its illusory position or both. The real …