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. Author manuscript; available in PMC: 2017 Aug 1.
Published in final edited form as: J Pediatr. 2016 May 20;175:144–149.e1. doi: 10.1016/j.jpeds.2016.04.065

Figure.

Figure

Experimental setup for kinemtics procedure: (A) Room setup during procedure. The subject sits at a table with 5 pegs and attempts to drop them into the nearby hole one at a time. Two infrared (IR) cameras placed at different angles record the procedure. The subject’s mother holds the child’s other hand to avoid use of both hands. The experimenter hides behind a curtain to avoid unnecessary play. (B) Representation of the glove worn by subjects during the procedure. The IR reflective markers (gray) reflect the light to the cameras and enable the tracking software to compute coordinates of all markers at 100 HZ. (C) Representation of the pegs used in the procedure. The body is either painted black (Light condition) or with phosphorescent paint (Glow condition). The top of the pegs has IR markers to enable similar tracking as the markers on the hands.