PMC6531910_01
Examples of V's common dance moves. (A) Head bobs, (B) Arm pumps, and (C) Torso twists. Video examples can be found in the Supplementary Materials. Written informed consent obtained from the parents of the child for the publication of these images.
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F1
Figure 1). For each dance burst, the coder indicated the time of peak movement position (lowest head position for head-bobbing, fully extended arm for arm pump).