September 2019
Volume 19, Issue 10
Open Access
Vision Sciences Society Annual Meeting Abstract  |   September 2019
Improved motor timing enhances time perception
Author Affiliations & Notes
  • Jianfei Guo
    Department of Cognitive, Linguistic and Psychological Sciences, Brown University
  • Zhaoran Zhang
    Department of Bioengineering, Northeastern University
  • Dagmar Sternad
    Department of Physics, Northeastern University
    Department of Electrical and Computer Engineering, Northeastern University
    Department of Biology, Northeastern University
  • Joo-Hyun Song
    Department of Cognitive, Linguistic and Psychological Sciences, Brown University
    Carney Institute for Brain Science, Brown University
Journal of Vision September 2019, Vol.19, 218b. doi:https://doi.org/10.1167/19.10.218b
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      Jianfei Guo, Zhaoran Zhang, Dagmar Sternad, Joo-Hyun Song; Improved motor timing enhances time perception. Journal of Vision 2019;19(10):218b. doi: https://doi.org/10.1167/19.10.218b.

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      © ARVO (1962-2015); The Authors (2016-present)

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Abstract

Previous studies demonstrated common timing mechanisms involved in perceptual judgments of time-intervals and performance of simple rhythmic movements (e.g., single-finger or foot tapping). For example, participants who showed larger timing variability in single-finger tapping also demonstrated lower acuity in time perception (Keele et al., 1985). Here, we examined whether motor training requiring complex movements without explicit periodicity affects perceptual judgments of time-intervals. We trained participants to throw a ball to hit a target as accurately as possible in a virtual environment across four-day sessions. We observed that as timing variability in motor performance decreased, the sensitivity of time-interval discrimination increased. Therefore, we demonstrated that improvement of motor timing enhances the sensitivity of time perception. Furthermore, our results suggest that a shared temporal mechanism exists between perception and movement regardless of rhythmicity or complexity of the motor tasks.

Acknowledgement: NSF CAREER Award 1555006 
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