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


Hinder, MR and Riek, S and Tresilian, JR and de Rugy, A and Carson, RG, Real-time error detection but not error correction drives automatic visuomotor adaptation , Experimental Brain Research, 201, (2) pp. 191-207. ISSN 0014-4819 (2010) [Refereed Article]

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DOI: doi:10.1007/s00221-009-2025-9


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° 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.

Item Details

Item Type:Refereed Article
Keywords:Visuomotor adaptation - Visual feedback - Sensory information - Motor learning - Contextual (colour) cues
Research Division:Psychology
Research Group:Cognitive and computational psychology
Research Field:Sensory processes, perception and performance
Objective Division:Expanding Knowledge
Objective Group:Expanding knowledge
Objective Field:Expanding knowledge in psychology
UTAS Author:Hinder, MR (Associate Professor Mark Hinder)
ID Code:60043
Year Published:2010
Web of Science® Times Cited:48
Deposited By:Psychology
Deposited On:2010-01-07
Last Modified:2015-02-06

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