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. 2011 Sep 22;7(9):e1002159. doi: 10.1371/journal.pcbi.1002159

Figure 2. Experimental setup.

Figure 2

Participants stand in front of the setup with their forearm resting on the horizontal lever arm. The rotation of the arm is recorded by the potentiometer, when the finger opens the contact switch the ball in the virtual simulation is released. Online recordings of the arm movements are displayed on the projection screen.