Effects of visual–haptic asynchronies and loading–unloading movements on compliance perception

Luca, Massimiliano Di; Knörlein, Benjamin; Ernst, Marc O.; Harders, Matthias

doi:10.1016/j.brainresbull.2010.02.009

Cited by 77 publications

(63 citation statements)

References 19 publications

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“…size-weight illusion [35]). The visual percept of reaction force explains why we are so easily deceived by altered visual feedback in haptically perceiving an object's properties such as its inertia [26], stiffness [36,37] and surface shape [38] ( perception of surface shape also depends on applied reaction force [39]). …”

Section: Discussionmentioning

confidence: 99%

What you feel is what you see: inverse dynamics estimation underlies the resistive sensation of a delayed cursor

Takamuku

Gomi

2015

Proc. R. Soc. B.

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How our central nervous system (CNS) learns and exploits relationships between force and motion is a fundamental issue in computational neuroscience. While several lines of evidence have suggested that the CNS predicts motion states and signals from motor commands for control and perception (forward dynamics), it remains controversial whether it also performs the 'inverse' computation, i.e. the estimation of force from motion (inverse dynamics). Here, we show that the resistive sensation we experience while moving a delayed cursor, perceived purely from the change in visual motion, provides evidence of the inverse computation. To clearly specify the computational process underlying the sensation, we systematically varied the visual feedback and examined its effect on the strength of the sensation. In contrast to the prevailing theory that sensory prediction errors modulate our perception, the sensation did not correlate with errors in cursor motion due to the delay. Instead, it correlated with the amount of exposure to the forward acceleration of the cursor. This indicates that the delayed cursor is interpreted as a mechanical load, and the sensation represents its visually implied reaction force. Namely, the CNS automatically computes inverse dynamics, using visually detected motions, to monitor the dynamic forces involved in our actions.

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Section: Discussionmentioning

confidence: 99%

What you feel is what you see: inverse dynamics estimation underlies the resistive sensation of a delayed cursor

Takamuku

Gomi

2015

Proc. R. Soc. B.

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“…When sighted, the woods were rated as smoother, metals as colder and polymers as softer than when unsighted, which suggested that preconceived ideas of these materials were influencing participants' responses. Other studies have shown that visual perception plays a significant role in judgments of softness and compliance [20] and colour has an influence on perceived warmth [21]. However, as Wongsriruska et al discuss in the original paper [17], biases are less likely to originate from visual perception in situations where the materials used do not significantly deform under pressure, as was the case in this experiment.…”

Section: Feel Of Materialsmentioning

confidence: 48%

Design tools for interdisciplinary translation of material experiences

et al. 2016

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Designers increasingly have the opportunity to influence the development of materials as they emerge from the laboratory. In order for this to be successful, designers need to be able to communicate effectively with materials scientists so that materials can be developed with desired functionalities and properties. This paper reviews evidence in favour of using isomorphic sets of material stimuli as tools to bridge the disciplinary gap between designers and materials scientists.We show how these isomorphic sets and their accompanying experiments can be used to translate between the two communities, and to systematically explore the relationship between the technical attributes of materials and subjective experiences of their sound, taste and feel. This paper also explores the limitations of psychophysical approaches and other quantitative techniques for elucidating material experience, and suggests new possibilities for interdisciplinary collaborations that draw on ethnographic approaches.

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“…In contrast, other studies provided evidences for state-based representation, and that participants were not able to correctly represent the delay as time difference. For example, adding a delay to force feedback affects stiffness perception (Pressman et al, 2007, Nisky et al, 2011, Di Luca et al, 2011. This suggest that humans are not able to perceive the delay as time difference between the sensory inputs, and therefore, are unable to realign the different sensory inputs to avoid perceptual biases.…”

Section: Adaptation and Representation Of Visuomotor Delaymentioning

confidence: 99%

“…Time delays are a result of sensory information transmission and processing time, and they may vary between modalities (Hopfield, 1995). Previous studies investigated how the sensorimotor system compensates for differences between the spatial representations in the workspaces (Heilman and Valenstein, 1979, Koch et al, 2011, Ziemann and Hallett, 2001, and for the delays between the different modalities (Miall et al, 1985, Miall and Jackson, 2006, Pressman et al, 2007, Nisky et al, 2010, Nisky et al, 2011, Di Luca et al, 2011, Honda et al, 2012, Rohde et al, 2014. In this study, we use adaptation and transfer of adaptation paradigms to examine the interplay between these two compensatory processes.…”

Section: Introductionmentioning

confidence: 99%

Adaptation to a Space-variant Visuomotor Delay can Cause Neglect-like Effects on Drawing Symmetry

Avraham

Mussa-Ivaldi³

et al. 2017

Preprint

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SummaryIn daily interactions, our sensorimotor system accounts for spatial and temporal discrepancies between the senses. Functional lateralization between hemispheres causes differences in attention and control of action. In addition, differences in transmission delays between modalities affects motor control. Studies on hemispatial neglect syndrome suggest a link between temporal processing and lateral spatial biases. To understand this link, we studied participants who performed lateral reaching, and adapted to delayed visual feedback in either left, right, or both workspaces. We tested transfer of adaptation to blind drawing, and found that adaptation to left or both delay caused selective leftward elongation. In contrast, adaptation to right delay caused elongation in both directions. Arm dynamics alone cannot explain these findings, but a model of a combined attentionalmotor asymmetry across the hemispheres explains our observations. This suggests a possible connection between laterality in delay processing and motor performances observed in cases of hemispatial neglect.

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Effects of visual–haptic asynchronies and loading–unloading movements on compliance perception

Cited by 77 publications

References 19 publications

What you feel is what you see: inverse dynamics estimation underlies the resistive sensation of a delayed cursor

What you feel is what you see: inverse dynamics estimation underlies the resistive sensation of a delayed cursor

Design tools for interdisciplinary translation of material experiences

Adaptation to a Space-variant Visuomotor Delay can Cause Neglect-like Effects on Drawing Symmetry

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