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Tool-sensed object information effectively supports vision for multisensory grasping

View ORCID ProfileIvan Camponogara, View ORCID ProfileAlessandro Farnè, View ORCID ProfileRobert Volcic
doi: https://doi.org/10.1101/2023.01.03.522671
Ivan Camponogara
1Division of Science, New York University Abu Dhabi, Abu Dhabi, United Arab Emirates
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  • For correspondence: ivan.camponogara@nyu.edu
Alessandro Farnè
2Integrative Multisensory Perception Action and Cognition Team - ImpAct, Lyon Neuroscience Research Center, INSERM U1028, CNRS U5292, Bron, France
3UCBL, University of Lyon 1, Villeurbanne, France
4Neuro-immersion, Hospices Civils de Lyon, Bron, France
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Robert Volcic
1Division of Science, New York University Abu Dhabi, Abu Dhabi, United Arab Emirates
5Center for Artificial Intelligence and Robotics, New York University Abu Dhabi, Abu Dhabi, United Arab Emirates
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Abstract

Tools enable humans to extend their sensing abilities beyond the natural limits of their hands, allowing them to sense objects as if they were using their hands directly. The similarities between tool-mediated and hand-based sensing entail the existence of comparable processes for integrating tool- and hand-sensed information with vision, raising the intriguing question of whether tools can support vision in bimanual object manipulations. Here we investigated this question by measuring participants’ performance while reaching for and grasping objects either held with a tool or with their hand. We found that tool-mediated sensing effectively supports vision in multisensory grasping. Even more intriguingly, tool-mediated sensing resembled hand-based sensing. In addition, by manipulating the object features (availability of position and size versus position only), we found that both tool- and hand-mediated action performance was not hindered by the absence of size information. Thus, integrating the tool-sensed position of the object with its vision is sufficient to promote a multisensory advantage in grasping. In sum, our findings indicate that multisensory integration mechanisms significantly improve grasping actions, fine-tuning contralateral hand movements even when object information is only indirectly sensed through the hand operating a tool.

Significance statement Tools allow extending the hands sensing capabilities beyond their anatomical limits. Here we show that object information sensed through a tool can guide bimanual object manipulations as effectively as when directly sensed by the hand. Both tool and hand sensing provide relevant object positional information that are merged with vision to improve action performance. Our findings provide evidence about the interchangeable use of tools and hands for skilled actions and open new perspectives for prosthetic applications and rehabilitative plans.

Competing Interest Statement

The authors have declared no competing interest.

Footnotes

  • https://osf.io/7n2g5/

Copyright 
The copyright holder for this preprint is the author/funder, who has granted bioRxiv a license to display the preprint in perpetuity. It is made available under a CC-BY-NC-ND 4.0 International license.
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Posted January 04, 2023.
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Tool-sensed object information effectively supports vision for multisensory grasping
Ivan Camponogara, Alessandro Farnè, Robert Volcic
bioRxiv 2023.01.03.522671; doi: https://doi.org/10.1101/2023.01.03.522671
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Tool-sensed object information effectively supports vision for multisensory grasping
Ivan Camponogara, Alessandro Farnè, Robert Volcic
bioRxiv 2023.01.03.522671; doi: https://doi.org/10.1101/2023.01.03.522671

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