Figure 4

Schema of the MDD task setup. (A) The participant put his/her head on a chin rest and responded to moving dots by tilting a joystick. (B) The target stimulus was presented at any one of four circular areas that were set 12° away from the fixation point (FP). In the shown case, the target presents 315° visual angles diagonally from the FP, and the motion direction of the target is downward.