There were several minor typos present in the Methods section of the original article.
In the paper we defined variables C and B as torque vectors, i.e., already multiplied by , and therefore they should not be multiplied by in Equation (5). The corrected formulation of equation is:
When reporting the model parameters in Table 4 in the paper, the values for inertia parameters I1 and I2 were accidentally switched with the values for center of mass distances s1 and s2. The corrected table is:
| m1 | Arm mass (kg) | 1.4 |
| m2 | Forearm mass (kg) | 1.1 |
| l1 | Arm length (m) | 0.3 |
| l2 | Forearm length (m) | 0.35 |
| I1 | Arm inertia (kg.m2) | 0.025 |
| I2 | Forearm inertia (kg.m2) | 0.045 |
| s1 | Distance from the center of segment 1 to its center of mass (m) | 0.11 |
| s2 | Distance from the center of segment 2 to its center of mass (m) | 0.16 |
Since we previously defined operator × as element-wise multiplication, the joint torque calculation equation (page 12) should have a regular multiplication between matrix fmax and vector ũ, and not × operator. The corrected equation in the text is: .
The authors apologize for these typos and state that they do not change the scientific conclusions in any way.
The original article has been updated.
Statements
Conflict of interest
The authors declare that the research was conducted in the absence of any commercial or financial relationships that could be construed as a potential conflict of interest.
Summary
Keywords
expected utility, hit dispersion, cost-benefit, speed-accuracy, arm reaching
Citation
Peternel L, Sigaud O and Babič J (2018) Corrigendum: Unifying Speed-Accuracy Trade-Off and Cost-Benefit Trade-Off in Human Reaching Movements. Front. Hum. Neurosci. 12:143. doi: 10.3389/fnhum.2018.00143
Received
27 March 2018
Accepted
03 April 2018
Published
16 April 2018
Volume
12 - 2018
Edited and reviewed by
Mikhail Lebedev, Duke University, United States
Updates
Copyright
© 2018 Peternel, Sigaud and Babič.
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) and the copyright owner 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.
*Correspondence: Olivier Sigaud olivier.sigaud@upmc.frJan Babič jan.babic@ijs.si
Disclaimer
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