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. 2016 Aug 31;16(9):1396. doi: 10.3390/s16091396

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© 2016 by the authors; licensee MDPI, Basel, Switzerland.

This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC-BY) license (http://creativecommons.org/licenses/by/4.0/).

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Subjects’ head movement velocities in successive captured images while: (a) playing a game; (b) surfing the web; (c) typing; and (d) watching a movie; (e) The average velocity distribution from (a) to (d).

Subjects’ head movement velocities in successive captured images while: (a) playing a game; (b) surfing the web; (c) typing; and (d) watching a movie; (e) The average velocity distribution from (a) to (d).