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Assessing ocular activity during performance of motor skills using electrooculography
Authors
Babiloni
Causer
+41 more
Causer
Cohen
Cooke
Cooke
Cooke
Cousineau
Delay
Fitts
Gallicchio
Gonzalez
Guyton
Hatfield
Helsen
Jasper
Klostermann
Krauzlis
Lebeau
Mann
Mann
Mann
Marmor
Pfister
Rienhoff
Shackel
Shannon
Sim
Vasey
Vickers
Vickers
Vickers
Vine
Vine
Vine
Walters-Symons
Walters-Symons
Webb
Williams
Wilson
Wilson
Wulf
Young
Publication date
9 February 2018
Publisher
'Wiley'
Doi
Cite
Abstract
© 2018 The Authors. Psychophysiology published by Wiley Periodicals, Inc. on behalf of Society for Psychophysiological Research Eye-tracking research has revealed that, compared to novices, experts make longer ocular fixations on the target of an action when performing motor skills; that is, they have a longer quiet eye. Remarkably, the reason why a longer quiet eye aids movement has yet to be established. There is a need for interdisciplinary research and new measures to accelerate progress on the mechanistic understanding of the phenomenon. With the aim to provide researchers with new tools, we assessed the utility of electrooculography (EOG) to examine ocular activity while 10 experts and 10 novices putted golf balls. We measured quiet eye durations, distinguishing its pre- and postmovement initiation components, and developed a novel time-varying index of ocular activity, eye quietness, computed as the variability of the EOG in short time intervals: lower values correspond with greater quietness. Finally, we measured movement durations using a combination of infrared and sound sensors. Experts had longer postmovement initiation quiet eye compared to novices; however, total and premovement quiet eye durations did not differ between groups. Eye quietness was inversely correlated with quiet eye duration, and was greatest immediately after movement initiation. Importantly, movement duration correlated positively with postmovement initiation quiet eye and negatively with eye quietness shortly after movement initiation. This study demonstrates the utility of assessing ocular activity during performance of motor skills using EOG. Additionally, these findings provide evidence that expert–novice differences in ocular activity may reflect differences in the kinematics (e.g., movement duration) of how experts and novices execute motor skills
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info:doi/10.1111%2Fpsyp.13070
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