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. Author manuscript; available in PMC: 2013 Jun 1.
Published in final edited form as: Mov Disord. 2012 Jan 4;27(7):843–850. doi: 10.1002/mds.24888

FIG. 1.

FIG. 1

Individual data points for lower lip opening (left graph) and closing (right graph) displacement and velocity are shown. Because opening velocities are negative values, the absolute value of velocity is plotted in this figure. The inset lines show the median value for each variable for all participants.