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

Mark R Hinder; Stephan Riek; James R Tresilian; Aymar de Rugy; Richard G Carson

doi:10.1007/s00221-009-2025-9

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

Journal article

Peer reviewed

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

Mark R Hinder, Stephan Riek, James R Tresilian, Aymar de Rugy and Richard G Carson

Experimental Brain Research, Vol.201(2), pp.191-207

2010

DOI: https://doi.org/10.1007/s00221-009-2025-9

PMID: 19830412

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Abstract

Computer Graphics

Visuomotor adaptation

Visual feedback

Sensory information

Motor learning

Contextual (colour) cues

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.

Details

Title: Real-time error detection but not error correction drives automatic visuomotor adaptation
Authors: Mark R Hinder (Author) - University of Queensland
Stephan Riek (Author) - University of Queensland
James R Tresilian (Author) - University of Queensland
Aymar de Rugy (Author) - University of Queensland
Richard G Carson (Author) - University of Queensland
Publication details: Experimental Brain Research, Vol.201(2), pp.191-207
Publisher: Springer
DOI: 10.1007/s00221-009-2025-9
ISSN: 1432-1106
PMID: 19830412
Organisation Unit: Graduate Research School; University of the Sunshine Coast, Queensland
Language: English
Record Identifier: 99472603302621
Output Type: Journal article

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Collaboration types: Domestic collaboration; International collaboration
Web Of Science research areas: Neurosciences

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