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Experimental setup. The screen located in front of the subject showed the actual hand position (yellow circle, ∅ 2 cm) and the current target (red circle, ∅ 2 cm). The workspace is limited by a virtual wall (gray line) that subjects cannot overstep. The five colored sectors on the screen represent the five main reaching directions: −45°(blue), −22.5°(light blue), 0°(green), 22.5°(orange), 45°(pink).
