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Slow rhythmic eye motion predicts periodic alternation of bistable perception

Woochul Choi, Hyeonsu Lee, View ORCID ProfileSe-Bum Paik
doi: https://doi.org/10.1101/2020.09.18.303198
Woochul Choi
1Institute of Information Electronics, Korea Advanced Institute of Science and Technology, Daejeon 34141, Republic of Korea
2Department of Bio and Brain Engineering, Korea Advanced Institute of Science and Technology, Daejeon 34141, Republic of Korea
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Hyeonsu Lee
2Department of Bio and Brain Engineering, Korea Advanced Institute of Science and Technology, Daejeon 34141, Republic of Korea
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Se-Bum Paik
2Department of Bio and Brain Engineering, Korea Advanced Institute of Science and Technology, Daejeon 34141, Republic of Korea
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  • ORCID record for Se-Bum Paik
  • For correspondence: sbpaik@kaist.ac.kr
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Abstract

Bistable perception is characterized by periodic alternation between two different perceptual interpretations, the mechanism of which is poorly understood. Herein, we show that perceptual decisions in bistable perception are strongly correlated with slow rhythmic eye motion, the frequency of which varies across individuals. From eye gaze trajectory measurements during three types of bistable tasks, we found that each subject’s gaze position oscillates slowly(less than 1Hz), and that this frequency matches that of bistable perceptual alternation. Notably, the motion of the eye apparently moves in opposite directions before two opposite perceptual decisions, and this enables the prediction of the timing and direction of perceptual alternation from eye motion. We also found that the correlation between eye movement and a perceptual decision is maintained during variations of the alternation frequency by the intentional switching or retaining of perceived states. This result suggests that periodic bistable perception is phase-locked with rhythmic eye motion.

Competing Interest Statement

The authors have declared no competing interest.

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The copyright holder for this preprint is the author/funder, who has granted bioRxiv a license to display the preprint in perpetuity. All rights reserved. No reuse allowed without permission.
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Posted September 20, 2020.
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Slow rhythmic eye motion predicts periodic alternation of bistable perception
Woochul Choi, Hyeonsu Lee, Se-Bum Paik
bioRxiv 2020.09.18.303198; doi: https://doi.org/10.1101/2020.09.18.303198
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Slow rhythmic eye motion predicts periodic alternation of bistable perception
Woochul Choi, Hyeonsu Lee, Se-Bum Paik
bioRxiv 2020.09.18.303198; doi: https://doi.org/10.1101/2020.09.18.303198

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