2022
Peña-Pérez, Nuria; Eden, Jonathan; Burdet, Etienne; Farkhatdinov, Ildar; Takagi, Atsushi
Lateralization of Impedance Control in Dynamic Versus Static Bimanual Tasks Proceedings Article
In: 2022 44th Annual International Conference of the IEEE Engineering in Medicine & Biology Society (EMBC), pp. 785–789, 2022, (ISSN: 2694-0604).
Abstract | Links | BibTeX | Tags: Biology, Haptic interfaces, Impedance, Resource management, Task analysis, Torque, Wrist
@inproceedings{perez_lateralization_2022,
title = {Lateralization of Impedance Control in Dynamic Versus Static Bimanual Tasks},
author = {Nuria Peña-Pérez and Jonathan Eden and Etienne Burdet and Ildar Farkhatdinov and Atsushi Takagi},
doi = {10.1109/EMBC48229.2022.9871013},
year = {2022},
date = {2022-07-01},
urldate = {2022-07-01},
booktitle = {2022 44th Annual International Conference of the IEEE Engineering in Medicine & Biology Society (EMBC)},
pages = {785–789},
abstract = {In activities of daily living that require bimanual coordination, humans often assign a role to each hand. How do task requirements affect this role assignment? To address this question, we investigated how healthy right-handed participants bimanually manipulated a static or dynamic virtual object using wrist flexion/extension while receiving haptic feedback through the interacting object's torque. On selected trials, the object shook strongly to destabilize the bimanual grip. Our results show that participants reacted to the shaking by increasing their wrist co-contraction. Unlike in previous work, handedness was not the determining factor in choosing which wrist to co-contract to stabilize the object. However, each participant preferred to co-contract one hand over the other, a choice that was consistent for both the static and dynamic objects. While role allocation did not seem to be affected by task requirements, it may have resulted in different motor behaviours as indicated by the changes in the object torque. Further investigation is needed to elucidate the factors that determine the preference in stabilizing with either the dominant or non-dominant hand.},
note = {ISSN: 2694-0604},
keywords = {Biology, Haptic interfaces, Impedance, Resource management, Task analysis, Torque, Wrist},
pubstate = {published},
tppubtype = {inproceedings}
}
In activities of daily living that require bimanual coordination, humans often assign a role to each hand. How do task requirements affect this role assignment? To address this question, we investigated how healthy right-handed participants bimanually manipulated a static or dynamic virtual object using wrist flexion/extension while receiving haptic feedback through the interacting object's torque. On selected trials, the object shook strongly to destabilize the bimanual grip. Our results show that participants reacted to the shaking by increasing their wrist co-contraction. Unlike in previous work, handedness was not the determining factor in choosing which wrist to co-contract to stabilize the object. However, each participant preferred to co-contract one hand over the other, a choice that was consistent for both the static and dynamic objects. While role allocation did not seem to be affected by task requirements, it may have resulted in different motor behaviours as indicated by the changes in the object torque. Further investigation is needed to elucidate the factors that determine the preference in stabilizing with either the dominant or non-dominant hand.
Huang, Yanpei; Eden, Jonathan; Ivanova, Ekaterina; Burdet, Etienne
Human Performance of Three Hands in Unimanual, Bimanual and Trimanual Tasks Proceedings Article
In: 2022 44th Annual International Conference of the IEEE Engineering in Medicine & Biology Society (EMBC), pp. 1493–1497, 2022, (ISSN: 2694-0604).
Abstract | Links | BibTeX | Tags: Biology, Motion control, Robot kinematics, Task analysis, Training, Virtual reality
@inproceedings{huang_human_2022,
title = {Human Performance of Three Hands in Unimanual, Bimanual and Trimanual Tasks},
author = { Yanpei Huang and Jonathan Eden and Ekaterina Ivanova and Etienne Burdet},
doi = {10.1109/EMBC48229.2022.9871248},
year = {2022},
date = {2022-07-01},
booktitle = {2022 44th Annual International Conference of the IEEE Engineering in Medicine & Biology Society (EMBC)},
pages = {1493–1497},
abstract = {Trimanual operation using a robotic supernumerary limb is a new and challenging mechanism for human operators that could enable a single user to perform tasks requiring more than two hands. Foot-controlled interfaces have previously proven able to be intuitively controlled, enabling simple tasks to be performed. However, the effect of going from unimanual to bimanual and then to trimanual tasks on subjects performance and coordination is not well understood. In this paper, unimanual, bimanual and trimanual teleoperation tasks were performed in a virtual reality scene to evaluate the impact of extending to trimanual actions. 15 participants were required to move their limbs together in a coordinated reaching activity. The results show that the addition of another hand resulted in an increase in operating time, where the time increased in going from unimanual to bimanual operation and then increased further when going from bimanual to trimanual. Moreover, the success rate for performing bimanual and trimanual tasks was strongly influenced by the subject's performance in ipsilateral hand-foot activities, where the ipsilateral combination had a lower success rate than contralateral limbs. The addition of a hand did not affect any two-hand coordination rate and even in some cases reduced coordination deviations. Clinical relevance - This work can contribute to build efficient training and learning framework on human multiple limbs motion control and coordination for both rehabilitation and augmentation.},
note = {ISSN: 2694-0604},
keywords = {Biology, Motion control, Robot kinematics, Task analysis, Training, Virtual reality},
pubstate = {published},
tppubtype = {inproceedings}
}
Trimanual operation using a robotic supernumerary limb is a new and challenging mechanism for human operators that could enable a single user to perform tasks requiring more than two hands. Foot-controlled interfaces have previously proven able to be intuitively controlled, enabling simple tasks to be performed. However, the effect of going from unimanual to bimanual and then to trimanual tasks on subjects performance and coordination is not well understood. In this paper, unimanual, bimanual and trimanual teleoperation tasks were performed in a virtual reality scene to evaluate the impact of extending to trimanual actions. 15 participants were required to move their limbs together in a coordinated reaching activity. The results show that the addition of another hand resulted in an increase in operating time, where the time increased in going from unimanual to bimanual operation and then increased further when going from bimanual to trimanual. Moreover, the success rate for performing bimanual and trimanual tasks was strongly influenced by the subject's performance in ipsilateral hand-foot activities, where the ipsilateral combination had a lower success rate than contralateral limbs. The addition of a hand did not affect any two-hand coordination rate and even in some cases reduced coordination deviations. Clinical relevance - This work can contribute to build efficient training and learning framework on human multiple limbs motion control and coordination for both rehabilitation and augmentation.
2021
Blondin, Camille M.; Ivanova, Ekaterina; Eden, Jonathan; Burdet, Etienne
Perception and Performance of Electrical Stimulation for Proprioception Proceedings Article
In: 2021 43rd Annual International Conference of the IEEE Engineering in Medicine & Biology Society (EMBC), pp. 4550–4554, 2021, (ISSN: 2694-0604).
Abstract | Links | BibTeX | Tags: Biology, Elbow, Electrical stimulation, Electrodes
@inproceedings{blondin_perception_2021,
title = {Perception and Performance of Electrical Stimulation for Proprioception},
author = { Camille M. Blondin and Ekaterina Ivanova and Jonathan Eden and Etienne Burdet},
doi = {10.1109/EMBC46164.2021.9630186},
year = {2021},
date = {2021-11-01},
booktitle = {2021 43rd Annual International Conference of the IEEE Engineering in Medicine & Biology Society (EMBC)},
pages = {4550–4554},
abstract = {Proprioception, yielding awareness of the body’s position and motion in space, is typically lacking in prostheses and supernumerary limbs. Electrical stimulation is one technique that may provide these devices with proprioception. This paper first investigates how the modalities of electrotactile cues, such as frequency and intensity, are perceived. Using the results, we designed and compared several comfortable and perceptible feedback mappings for spatial cues. Two experiments were conducted using a 16-electrode bracelet worn above the elbow to provide electrical stimuli. We found that subjects could localize the stimulating electrode with a precision of ±1 electrode (110 mm) in all feedback conditions. Moreover, within the range of pulse intensities perceived as comfortable, the participants’ performance was more sensitive to changes in frequency than in intensity. The highest performance was obtained for the condition which increased both intensity and frequency with radial distance. These results suggest that electrical stimulation can be used for artificial proprioceptive feedback, which can ensure a comfortable and intuitive interaction and provides high spatial accuracy.},
note = {ISSN: 2694-0604},
keywords = {Biology, Elbow, Electrical stimulation, Electrodes},
pubstate = {published},
tppubtype = {inproceedings}
}
Proprioception, yielding awareness of the body’s position and motion in space, is typically lacking in prostheses and supernumerary limbs. Electrical stimulation is one technique that may provide these devices with proprioception. This paper first investigates how the modalities of electrotactile cues, such as frequency and intensity, are perceived. Using the results, we designed and compared several comfortable and perceptible feedback mappings for spatial cues. Two experiments were conducted using a 16-electrode bracelet worn above the elbow to provide electrical stimuli. We found that subjects could localize the stimulating electrode with a precision of ±1 electrode (110 mm) in all feedback conditions. Moreover, within the range of pulse intensities perceived as comfortable, the participants’ performance was more sensitive to changes in frequency than in intensity. The highest performance was obtained for the condition which increased both intensity and frequency with radial distance. These results suggest that electrical stimulation can be used for artificial proprioceptive feedback, which can ensure a comfortable and intuitive interaction and provides high spatial accuracy.