PMID: 8580736Oct 1, 1995Paper

Learning a new visuomotor transformation: error correction and generalization

Brain Research. Cognitive Brain Research
A Roby-Brami, Y Burnod

Abstract

The use of an aiming tool requires learning a new transformation between visual and proprioceptive information and motor command. We have examined this question by quantifying the kinematics of the movement during the transitory phase of adaptation to a rotational bias (60 degrees counterclockwise, then clockwise) added to a standard mouse-cursor device in the plane of the screen. Control-aiming movements were almost linear with a bell-shaped velocity profile. The bias induced an equivalent initial directional error which was usually corrected within 20 trials. The learning trajectories were combinations of spirals and fast or slow straight movements. The posture of the hand was slightly (less than 10 degrees) modified by the bias. These features suggest three corrective processes: on-line continuous correction based on evaluation of the relative cursor-to-target position, discrete correction based on assessment of the discrepancy angle between the cursor-to-target direction and the effective cursor direction, and memorization of trial-to-trial correction. These results are interpreted in the light of neurophysiological data and neural net modeling, which suggest that the visuomotor transformation performed by cortical areas fo...Continue Reading

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Citations

Feb 1, 2011·Experimental Brain Research·Otmar Bock, Gerd Schmitz
Mar 17, 2007·Biological cybernetics·Moritz Grosse-Wentrup, Jose L Contreras-Vidal
Mar 10, 2004·NeuroImage·José L Contreras-Vidal, Scott E Kerick
Jan 29, 2003·Learning & Memory·Ethan R BuchJosé L Contreras-Vidal
Dec 24, 2011·Journal of Biomedical Optics·Kotaro GotoHarumitsu Murohashi
Dec 14, 2011·Journal of Neurophysiology·Sydney Y SchaeferKurt A Thoroughman
Aug 1, 2008·Journal of Neurophysiology·Saritha M RadhakrishnanAndrew Jackson
May 14, 2009·PloS One·Lee A Baugh, Jonathan J Marotta
Nov 22, 2013·Experimental Brain Research·Natalia DounskaiaAndrzej Przybyla
Dec 11, 2013·Proceedings of the National Academy of Sciences of the United States of America·Robert AjemianEmilio Bizzi
Feb 3, 2011·Behavior Research Methods·Christian O'Reilly, Réjean Plamondon
Mar 19, 2011·Human Movement Science·Anusha VenkatakrishnanJosé L Contreras-vidal
Sep 5, 2015·Human Movement Science·Ting-Ting YehTimothy D Lee
Jun 8, 2011·The European Journal of Neuroscience·Mario Prsa, Peter Thier
Feb 22, 2005·Brain Research. Cognitive Brain Research·Francis X GraydonRavi S Menon
Oct 13, 2006·Computers in Biology and Medicine·Gabriel M GauthierJean-Louis Vercher
Jun 25, 2015·Experimental Brain Research·Zachary A WrightJames L Patton
May 12, 2000·NeuroImage·K InoueH Fukuda
Aug 3, 2010·Medical Engineering & Physics·Emiliano RustighiBrian R Mace
Apr 17, 2003·Experimental Brain Research·José L Contreras-Vidal, Ethan R Buch
Dec 9, 2004·Motor Control·Sima Mistry, Jose L Contreras-Vidal

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