Multi-digit position and force coordination in three- and four-digit grasping

Abdeldjallil Naceri, Alessandro Moscatelli, Marco Santello, Marc O. Ernst

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

In this paper, we investigate the redundancy problem by examining how humans control grasping of a hand-held object using three- and four-digits in response to external perturbations. Our results revealed a similar variability in digits’ initial placements when grasping with three- and four-digits. Moreover, the distribution of digit normal forces were modulated depending on the number of digits used, their locations, and the type of the external perturbations. Our results suggest that the redundancy problem was addressed by the central nervous system in a similar fashion on a trial-to-trial basis in terms of digits’ initial placements, but differently in terms of digits normal force distribution that was controlled online depending on the number of digits actively involved in the grasp.

Original languageEnglish (US)
Title of host publicationHaptics
Subtitle of host publicationNeuroscience, Devices, Modeling, and Applications - 9th International Conference, EuroHaptics 2014, Proceedings
EditorsChristian Duriez, Christian Duriez, Malika Auvray, Malika Auvray
PublisherSpringer Verlag
Pages101-108
Number of pages8
ISBN (Electronic)9783662441923
DOIs
StatePublished - Jan 1 2014
Event9th International Conference on Haptics: Neuroscience, Devices, Modeling, and Applications, EuroHaptics 2014 - Versailles, France
Duration: Jun 24 2014Jun 26 2014

Publication series

NameLecture Notes in Computer Science (including subseries Lecture Notes in Artificial Intelligence and Lecture Notes in Bioinformatics)
Volume8618
ISSN (Print)0302-9743
ISSN (Electronic)1611-3349

Other

Other9th International Conference on Haptics: Neuroscience, Devices, Modeling, and Applications, EuroHaptics 2014
CountryFrance
CityVersailles
Period6/24/146/26/14

Keywords

  • Redundancy problem
  • Threeand four-digits grasping
  • Unconstrained grasping

ASJC Scopus subject areas

  • Theoretical Computer Science
  • Computer Science(all)

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  • Cite this

    Naceri, A., Moscatelli, A., Santello, M., & Ernst, M. O. (2014). Multi-digit position and force coordination in three- and four-digit grasping. In C. Duriez, C. Duriez, M. Auvray, & M. Auvray (Eds.), Haptics: Neuroscience, Devices, Modeling, and Applications - 9th International Conference, EuroHaptics 2014, Proceedings (pp. 101-108). (Lecture Notes in Computer Science (including subseries Lecture Notes in Artificial Intelligence and Lecture Notes in Bioinformatics); Vol. 8618). Springer Verlag. https://doi.org/10.1007/978-3-662-44193-0_14