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Patrice Rougier and Mélanie Garin

To determine the relationship between eye movement and postural control on an undisturbed upright stance maintenance protocol, 15 young, healthy individuals were tested in various conditions. These conditions included imposed blinking patterns and horizontal and vertical saccadic eye movements. The directions taken by the center of pressure (CP) were recorded via a force platform on which the participants remained in an upright position. The CP trajectories were used to estimate, via a low-pass filter, the vertically projected movements of the center of gravity (CGv) and consequently the difference CP-CGv. An analysis of the frequency shows that regular bilateral blinking does not produce a significant change in postural control. In contrast, performing saccadic eye movements induces some reduced amplitude for both basic CGv and CP-CGv movements principally along the antero-posterior axis. The present result supports the theory that some ocular movements may modify postural control in the maintenance of the upright standing position in human participants.

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Wojciech Jedziniak, Piotr Lesiakowski, and Teresa Zwierko

be characterized as the speed and accuracy of eye movements during the execution of a saccadic task. The human visuo-oculomotor system uses a strategy of saccadic eye movements for foveated vision, and such eye movements are a key factor for body control and balance. Many studies have indicated

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Francesc Llorens, Daniel Sanabria, Florentino Huertas, Enrique Molina, and Simon Bennett

The abrupt onset of a visual stimulus typically results in overt attentional capture, which can be quantified by saccadic eye movements. Here, we tested whether attentional capture following onset of task-irrelevant visual stimuli (new object) is reduced after a bout of intense physical exercise. A group of participants performed a visual search task in two different activity conditions: rest, without any prior effort, and effort, immediately after an acute bout of intense exercise. The results showed that participants exhibited (1) slower reaction time of the first saccade toward the target when a new object was simultaneously presented in the visual field, but only in the rest activity condition, and (2) more saccades to the new object in the rest activity condition than in the effort activity condition. We suggest that immediately after an acute bout of effort, participants improved their ability to inhibit irrelevant (distracting) stimuli.

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Ian McGinnis, Justin Cobb, Ryan Tierney, and Anne Russ

pursuits, saccadic eye movements, near-point convergence testing, vestibulo-ocular reflex testing, visual motion sensitivity testing, the Balance Error Scoring System (BESS) test, and the Sensory Organization Test (SOT). 7 Most individuals who experience a sport-related concussion will clinically recover

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Cédrick T. Bonnet

). Variability and determinism in motor behavior . Journal of Motor Behavior, 34 , 99 – 125 . PubMed ID: 12057885 doi:10.1080/00222890209601934 10.1080/00222890209601934 Rougier , P. , & Garin , M. ( 2007 ). Performing saccadic eye movements or blinking improves postural control . Motor Control, 11

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Thomas Hausegger, Christian Vater, and Ernst-Joachim Hossner

into play, namely costs due to saccadic suppression ( Bridgeman, Hendry, & Stark, 1975 ; Klingenhoefer & Bremmer, 2011 ; Matin, 1974 ). Given the high velocity of saccadic eye movements with up to 700°/s ( Duchowski, 2007 ), the suppression of visual information during saccades presumably helps to

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Ali S. Tejani, Bert B. Vargas, Emily F. Middleton, and Mu Huang

.2001 11976367 10.1152/jn.00854.2001 22. Rodrigues ST , Aguiar AA , Polastri PF , Godoi D , Moraes R , Barela J . Effects of saccadic eye movements on postural control stabilization . Motriz: Rev Educ Fis . 2013 ; 19 ( 3 ): 614 – 619 . doi:10.1590/S1980-65742013000300012 23. Fujiwara K

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Benjamin Noël and Stefanie Klatt

; Applied Science Laboratories, Bedford, MA, sampling rate of 30 Hz and resolution of 1°). Furthermore, the short presentation time of the game situations (150 ms) made any saccadic eye movements hard to accomplish anyway. Cases in which the participants nevertheless made saccades to any of the players

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Ashley L. Santo, Melissa L. Race, and Elizabeth F. Teel

King–Devick test (assesses saccadic eye movements), the Convergence Insufficiency Symptom Survey, and the Dizziness Handicap Inventory. Deficits in NPC can lead to vision- and oculomotor-related symptoms, such as blurred vision, headaches, difficulty in reading, eyestrain, sleepiness, and difficulty

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Thorben Hülsdünker, Martin Ostermann, and Andreas Mierau

the input to, and activation of, area MT. Furthermore, unlike experiments on the computer screen, participants did not focus a fixation point but instead had to follow the ball trajectory to perform the movement. This requires saccadic eye movements that not only reduced visual acuity ( Wurtz, 2008