Rights statement: The final, definitive version of this article has been published in the Journal, Perception, 50 (9), 2021, © SAGE Publications Ltd, 2021 by SAGE Publications Ltd at the Perception page: https://journals.sagepub.com/home/SPP on SAGE Journals Online: http://journals.sagepub.com/
Accepted author manuscript, 441 KB, PDF document
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Final published version
Licence: CC BY: Creative Commons Attribution 4.0 International License
Research output: Contribution to Journal/Magazine › Journal article › peer-review
Research output: Contribution to Journal/Magazine › Journal article › peer-review
}
TY - JOUR
T1 - The influence of perceptual motor variability on the perception of action boundaries for reaching in a real-world setting
AU - Lin, Lisa
AU - Plack, Christopher
AU - Linkenauger, Sally
N1 - The final, definitive version of this article has been published in the Journal, Perception, 50 (9), 2021, © SAGE Publications Ltd, 2021 by SAGE Publications Ltd at the Perception page: https://journals.sagepub.com/home/SPP on SAGE Journals Online: http://journals.sagepub.com/
PY - 2021/9/1
Y1 - 2021/9/1
N2 - The ability to accurately perceive the extent over which one can act is requisite for the successful execution of visually-guided actions. Yet, like other outcomes of perceptual-motor experience, our perceived action boundaries are not stagnant, but in constant flux. Hence, the perceptual systems must account for variability in one’s action capabilities in order for the perceiver to determine when they are capable of successfully performing an action. Recent work has found that, after reaching with a virtual arm that varied between short and long each time they reach, individuals determine their perceived action boundaries using the most liberal reaching experience. However, these studies were conducted in virtual reality, and the perceptual systems may handle variability differently in a real-world setting. To test this hypothesis, we created a modified orthopaedic elbow brace that mimic injury in the upper limb by restricting elbow extension via remote control. Participants were asked to make reachability judgements after training in which the maximum extent of their reaching ability was either unconstricted, constricted or variable over several calibration trials. Findings from the current study didn’t conform to those in virtual reality; participants were more conservative with their reachability estimates after experiencing variability in a real-world setting.
AB - The ability to accurately perceive the extent over which one can act is requisite for the successful execution of visually-guided actions. Yet, like other outcomes of perceptual-motor experience, our perceived action boundaries are not stagnant, but in constant flux. Hence, the perceptual systems must account for variability in one’s action capabilities in order for the perceiver to determine when they are capable of successfully performing an action. Recent work has found that, after reaching with a virtual arm that varied between short and long each time they reach, individuals determine their perceived action boundaries using the most liberal reaching experience. However, these studies were conducted in virtual reality, and the perceptual systems may handle variability differently in a real-world setting. To test this hypothesis, we created a modified orthopaedic elbow brace that mimic injury in the upper limb by restricting elbow extension via remote control. Participants were asked to make reachability judgements after training in which the maximum extent of their reaching ability was either unconstricted, constricted or variable over several calibration trials. Findings from the current study didn’t conform to those in virtual reality; participants were more conservative with their reachability estimates after experiencing variability in a real-world setting.
KW - Perception/action
KW - Action boundaries
KW - Perceptual-motor calibration
KW - Perceptual learning
KW - reaching/grasping
U2 - 10.1177/03010066211038406
DO - 10.1177/03010066211038406
M3 - Journal article
VL - 50
SP - 783
EP - 796
JO - Perception
JF - Perception
SN - 0301-0066
IS - 9
ER -