Fig. 1: Experimental design. | Nature Communications

Fig. 1: Experimental design.

From: Unexpected complexity of everyday manual behaviors

Fig. 1

a Subjects performed two manual tasks: grasping objects and signing in American Sign Language (ASL). Infrared cameras tracked the 3D trajectories of markers placed on the subjects’ hand and joint angles were calculated from these marker trajectories using reverse kinematics. b Grasped objects and ASL signs.

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