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. 2013 Nov 13;7:752. doi: 10.3389/fnhum.2013.00752

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Copyright © 2013 Shabbott, Ravindran, Schumacher, Wasserman, Marder and Mazzoni.

This is an open-access article distributed under the terms of the Creative Commons Attribution License (CC BY). The use, distribution or reproduction in other forums is permitted, provided the original author(s) or licensor are credited and that the original publication in this journal is cited, in accordance with accepted academic practice. No use, distribution or reproduction is permitted which does not comply with these terms.

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Hand paths and time course of skill learning for representative single subjects. (A) Hand paths for a sample CTL subject with the positions of the timed discs (gray circles) and endpoint squares (black squares) shown. “Early” trials (i.e., the first 16 trials of training), left. “Late” trials (i.e., the last 16 trials of training), right. (B) Same plots as (A), but for a sample HD subject. (C) Smoothed skill error (black), endpoint error (blue), and speed error (green) vs. trial number for a sample CTL subject. (D) Same plot as (C), but for a sample HD subject. Single trial examples of skill error (filled circles) are also shown.