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. Author manuscript; available in PMC: 2009 Feb 15.
Published in final edited form as: J Neurosci Methods. 2007 Sep 22;168(1):164–173. doi: 10.1016/j.jneumeth.2007.09.015

Fig. 2.

Fig. 2

Representative recordings of displacement and acceleration for a subject performing the position-holding and position-tracking tasks with the first dorsal interosseous muscle. The recordings were obtained with the LVDT either attached (right column) or not attached (left column) to the index finger. Top three traces are acceleration and displacement of the index finger during the position-holding task, which involved an isometric contraction, and the bottom three traces are acceleration and displacement during the position-tracking task, which involved concentric (ramp up) and eccentric (ramp down) contractions.