Real-time error detection but not error correction drives automatic visuomotor adaptation. Export

@article{citeulike:5974562, abstract = {We investigated the role of visual feedback of task performance in visuomotor adaptation. Participants produced novel two degrees of freedom movements (elbow flexion-extension, forearm pronation-supination) to move a cursor towards visual targets. Following trials with no rotation, participants were exposed to a 60 degrees visuomotor rotation, before returning to the non-rotated condition. A colour cue on each trial permitted identification of the rotated/non-rotated contexts. Participants could not see their arm but received continuous and concurrent visual feedback (CF) of a cursor representing limb position or post-trial visual feedback (PF) representing the movement trajectory. Separate groups of participants who received CF were instructed that online modifications of their movements either were, or were not, permissible as a means of improving performance. Feedforward-mediated performance improvements occurred for both CF and PF groups in the rotated environment. Furthermore, for CF participants this adaptation occurred regardless of whether feedback modifications of motor commands were permissible. Upon re-exposure to the non-rotated environment participants in the CF, but not PF, groups exhibited post-training aftereffects, manifested as greater angular deviations from a straight initial trajectory, with respect to the pre-rotation trials. Accordingly, the nature of the performance improvements that occurred was dependent upon the timing of the visual feedback of task performance. Continuous visual feedback of task performance during task execution appears critical in realising automatic visuomotor adaptation through a recalibration of the visuomotor mapping that transforms visual inputs into appropriate motor commands.}, author = {Hinder, Mark R. and Riek, Stephan and Tresilian, James R. and de Rugy, Aymar and Carson, Richard G.}, citeulike-article-id = {5974562}, citeulike-linkout-0 = {http://dx.doi.org/10.1007/s00221-009-2025-9}, citeulike-linkout-1 = {http://view.ncbi.nlm.nih.gov/pubmed/19830412}, citeulike-linkout-2 = {http://www.hubmed.org/display.cgi?uids=19830412}, day = {15}, doi = {10.1007/s00221-009-2025-9}, issn = {1432-1106}, journal = {Experimental brain research. Experimentelle Hirnforschung. Experimentation cerebrale}, keywords = {adaptation, error, feedback, visuomotor}, month = {October}, posted-at = {2009-10-20 14:01:02}, priority = {2}, title = {Real-time error detection but not error correction drives automatic visuomotor adaptation.}, url = {http://dx.doi.org/10.1007/s00221-009-2025-9}, year = {2009} }

TY - JOUR ID - citeulike:5974562 L3 - citeulike-article-id:5974562 N2 - We investigated the role of visual feedback of task performance in visuomotor adaptation. Participants produced novel two degrees of freedom movements (elbow flexion-extension, forearm pronation-supination) to move a cursor towards visual targets. Following trials with no rotation, participants were exposed to a 60 degrees visuomotor rotation, before returning to the non-rotated condition. A colour cue on each trial permitted identification of the rotated/non-rotated contexts. Participants could not see their arm but received continuous and concurrent visual feedback (CF) of a cursor representing limb position or post-trial visual feedback (PF) representing the movement trajectory. Separate groups of participants who received CF were instructed that online modifications of their movements either were, or were not, permissible as a means of improving performance. Feedforward-mediated performance improvements occurred for both CF and PF groups in the rotated environment. Furthermore, for CF participants this adaptation occurred regardless of whether feedback modifications of motor commands were permissible. Upon re-exposure to the non-rotated environment participants in the CF, but not PF, groups exhibited post-training aftereffects, manifested as greater angular deviations from a straight initial trajectory, with respect to the pre-rotation trials. Accordingly, the nature of the performance improvements that occurred was dependent upon the timing of the visual feedback of task performance. Continuous visual feedback of task performance during task execution appears critical in realising automatic visuomotor adaptation through a recalibration of the visuomotor mapping that transforms visual inputs into appropriate motor commands. JF - Experimental brain research. Experimentelle Hirnforschung. Experimentation cerebrale SN - 1432-1106 TI - Real-time error detection but not error correction drives automatic visuomotor adaptation. KW - adaptation KW - error KW - feedback KW - visuomotor AU - Hinder, Mark AU - Riek, Stephan AU - Tresilian, James AU - de Rugy, Aymar AU - Carson, Richard PY - 2009/10/15/ UR - http://dx.doi.org/10.1007/s00221-009-2025-9 ER -