Apparent Time Interval of Visual Stimuli Is Compressed during Fast Hand Movement

Yokosaka, Takumi; Kuroki, Scinob; Nishida, Shin’ya; Watanabe, Junji

doi:10.1371/journal.pone.0124901

Cited by 40 publications

(60 citation statements)

References 45 publications

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“…More surprisingly, a few studies have reported visual temporal distortions even when performing hand/arm movements1318, suggesting that the phenomenon may not be related to the inherent connections between the visual and the oculomotor system.…”

Section: Discussionmentioning

confidence: 99%

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Perceived visual time depends on motor preparation and direction of hand movements

Tomassini

Morrone

2016

Sci Rep

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Perceived time undergoes distortions when we prepare and perform movements, showing compression and/or expansion for visual, tactile and auditory stimuli. However, the actual motor system contribution to these time distortions is far from clear. In this study we investigated visual time perception during preparation of isometric contractions and real movements of the hand in two different directions (right/left). Comparable modulations of visual event-timing are found in the isometric and in the movement condition, excluding explanations based on movement-induced sensory masking or attenuation. Most importantly, and surprisingly, visual time depends on the movement direction, being expanded for hand movements pointing away from the body and compressed in the other direction. Furthermore, the effect of movement direction is not constant, but rather undergoes non-monotonic modulations in the brief moments preceding movement initiation. Our findings indicate that time distortions are strongly linked to the motor system, and they may be unavoidable consequences of the mechanisms subserving sensory-motor integration.

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Section: Discussionmentioning

confidence: 99%

“…Multifaceted effects, including compression and dilation of time, have been reported in different epochs surrounding action execution9101112131415161718. Some of these misperceptions of time show striking similarities across the different sensory-motor systems.…”

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confidence: 99%

Perceived visual time depends on motor preparation and direction of hand movements

Tomassini

Morrone

2016

Sci Rep

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“…Remarkably, recent studies show that our perception of time depends on whether we are moving or not (Imaizumi and Asai, 2017) (Tomassini et al, 2012) (Tomassini et al, 2014) (Yokosaka et al, 2015) (Press et al, 2014) (Yon et al, 2017 (Hagura et al, 2012) (Tomassini and Morrone, 2016). Prolonged movements serve to expand the perceived duration of a concurrently presented stimulus (Yokosaka et al, 2015), and perceptual judgments of time tend to gravitate towards the length of our motor movements (Press et al, 2014), even when these movements are not tied to the task in any way (Yon et al, 2017). These distortions can also occur when viewing the movements of other people, and can further be altered by the sense of agency a viewer has during the observation (Imaizumi and Asai, 2017).…”

Section: Introductionmentioning

confidence: 99%

Movement Improves the Quality of Temporal Perception and Decision Making

Wiener

Zhou

Joiner

2018

Preprint

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Recent evidence suggest that our experience of time is directly and intrinsically computed within the motor system. Accordingly, a variety of studies have demonstrated that concurrent movement impacts the estimate of temporal duration, such that perceived time is shifted towards the duration of movement. In order to investigate the role of the motor system, we tested human subjects (n=40) on a novel task combining reaching and time perception. In this task, subjects were required to move a robotic manipulandum to one of two physical locations to categorize a concurrently timed suprasecond auditory stimulus as "long" or "short", relative to a running average criterion. Critically, subjects were divided into two groups: one in which movement during the interval was unrestricted and subjects could move freely to their choice, and one in which they were restrained from moving until the stimulus interval had elapsed. Our results revealed a higher degree of precision for subjects in the free-moving group. By further decomposing choice and response time data with a drift diffusion model of decision making, we identified the source of this change to a shift in the response threshold for free-moving subjects. Analysis of movement parameters revealed that eventual choice could be determined by movement parameters (e.g. trajectory, force) before the response was made, and even before the interval had elapsed, and that the variability of these movements was lower in the unrestrained group. A further experiment (n=14) verified that these findings were not due to proximity to the target, counting strategies, bias, or movement length. Our findings suggest that perceptual timing may be instantiated within the motor system as an ongoing readout of timing judgment and confidence.

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“…Time interval visualization by trial was fixated at 300 ms by a pre-programmed digital timer ( © CLIP-CLI Model). This interval was selected based on a previous study that found a 150-200 ms interval for visual self-agency consciousness, after the actual performance (Yokosaka, Kuroki, Nishida, & Watanabe, 2015). Thus, upper intervals, such as the applied 300 ms, should allow adequate time to discriminate delays between visualized action and proprioceptive action but may produce noise in decision making on SoA.…”

Section: Methodsmentioning

confidence: 99%

Body image perception and sense of agency: notes from the alien hand experiment

Pinhatti

Castro

Gomes

2018

Psico

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Este artigo está licenciado sob forma de uma licença Creative Commons Atribuição 4.0 Internacional, que permite uso irrestrito, distribuição e reprodução em qualquer meio, desde que a publicação original seja corretamente citada. http://creativecommons.org/licenses/by/4.0/deed.pt_BR Artigo originAl ISSN 1980-8623 Percepción de imagem corporal y senso de agencia: notas del experimento de la mano alienígena Resumen La percepción de la imagen corporal comprende características representativas estables y dinámicas. Aquí examinamos si una medida estable de la imagen corporal (IC) correlaciona con el senso de agencia (SA) de movimientos corporales. Un total de 21 estudiantes universitarios (M=25,9, DP=9,29) completaron la versión brasileña de la Escala de Figuras de Siluetas (EFS) y participaran en el Experimento de la Mano Alienígena. Una matriz de correlación bayesiana reveló una probabilidad de correlación negativa sustancial entre IC y la confianza en SA, específicamente en las condiciones experimentales donde el SA fue manipulado. Con base en los escores de la EFS, los participantes se dividieron en grupos con y sin evidencias de distorsión de IC. Las comparaciónes de grupos evidenciaron una diferencia sustancial entre los grupos. Los análisis confirmaron una menor confianza en SA entre individuos con distorsión de IC mayor que ±3 kg/m².

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Apparent Time Interval of Visual Stimuli Is Compressed during Fast Hand Movement

Cited by 40 publications

References 45 publications

Perceived visual time depends on motor preparation and direction of hand movements

Perceived visual time depends on motor preparation and direction of hand movements

Movement Improves the Quality of Temporal Perception and Decision Making

Body image perception and sense of agency: notes from the alien hand experiment

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