Updated on 2024/12/15

Affiliation
Faculty of Human Sciences, Advanced Research Center for Human Sciences
Job title
Research Associate
Degree
Doctor of Science ( 2024.03 Osaka University )

Education Background

  • 2019.04
    -
    2024.03

    Osaka University   Graduate School of Frontier Biosciences  

  • 2015.04
    -
    2019.03

    Ehime University   Faculty of Science   Department of Biology  

 

Papers

  • Table tennis players use superior saccadic eye movements to track moving visual targets.

    Riku Nakazato, Chisa Aoyama, Takaaki Komiyama, Ryoto Himo, Satoshi Shimegi

    Frontiers in sports and active living   6   1289800 - 1289800  2024  [International journal]

     View Summary

    INTRODUCTION: Table tennis players perform visually guided visuomotor responses countlessly. The exposure of the visual system to frequent and long-term motion stimulation has been known to improve perceptual motion detection and discrimination abilities as a learning effect specific to that stimulus, so may also improve visuo-oculomotor performance. We hypothesized and verified that table tennis players have good spatial accuracy of saccades to moving targets. METHODS: University table tennis players (TT group) and control participants with no striking-sports experience (Control group) wore a virtual reality headset and performed two ball-tracking tasks to track moving and stationary targets in virtual reality. The ball moved from a predetermined position on the opponent's court toward the participant's court. A total of 54 conditions were examined for the moving targets in combinations of three ball trajectories (familiar parabolic, unfamiliar descent, and unfamiliar horizontal), three courses (left, right, and center), and six speeds. RESULTS AND DISCUSSION: All participants primarily used catch-up saccades to track the moving ball. The TT group had lower mean and inter-trial variability in saccade endpoint error compared to the Control group, showing higher spatial accuracy and precision, respectively. It suggests their improvement of the ability to analyze the direction and speed of the ball's movement and predict its trajectory and future destination. The superiority of the spatial accuracy in the TT group was seen in both the right and the left courses for all trajectories but that of precision was for familiar parabolic only. The trajectory dependence of improved saccade precision in the TT group implies the possibility that the motion vision system is trained by the visual stimuli frequently encountered in table tennis. There was no difference between the two groups in the onset time or spatial accuracy of saccades for stationary targets appearing at various positions on the ping-pong table. CONCLUSION: Table tennis players can obtain high performance (spatial accuracy and precision) of saccades to track moving targets as a result of motion vision ability improved through a vast amount of visual and visuo-ocular experience in their play.

    DOI PubMed

    Scopus

Presentations

  • スポーツパフォーマンスに寄与する卓球選手の眼球運動特性

    中里りく, 七五三木聡

    第 28 回日本バーチャルリアリティ学会大会 口頭発表,ポスター発表 

  • 卓球選手の眼球運動によるボール追従精度とその特徴

    中里りく, 青山千紗, 小見山高明, 七五三木聡

    第 23 回計測自動制御学会システムインテグレーション部門講演会 

  • 卓球選手の眼球運動によるボール追従能力とその特性

    中里りく, 青山千紗, 小見山高明, 七五三木聡

    第 76 回日本体力医学会大会 口頭発表