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A frame from the hands-to-head while seated task for three participants: (A) Control participant (age 9), arms are relatively far back and symmetrical (Figure 5E). (B) Participant 2 (age 13), arms are reasonably far back, but the left hand is further down the head (Figure 5B). (C) Participant 10 (age 15) left arm is pointed forwards (Figure 5D).
