2023
Peña-Pérez, Nuria; Mutalib, Sharah Abdul; Eden, Jonathan; Farkhatdinov, Ildar; Burdet, Etienne
The Impact of Stiffness in Bimanual Versus Dyadic Interactions Requiring Force Exchange Journal Article
In: IEEE Transactions on Haptics, pp. 1–6, 2023, ISSN: 2329-4051, (Conference Name: IEEE Transactions on Haptics).
Abstract | Links | BibTeX | Tags: bimanual control, Force, Grasping, human-human interaction, Monitoring, object stiffness, Target tracking, Task analysis, Torque, Virtual object manipulation, Wrist
@article{pena-perez_impact_2023,
title = {The Impact of Stiffness in Bimanual Versus Dyadic Interactions Requiring Force Exchange},
author = {Nuria Peña-Pérez and Sharah Abdul Mutalib and Jonathan Eden and Ildar Farkhatdinov and Etienne Burdet},
doi = {10.1109/TOH.2023.3274584},
issn = {2329-4051},
year = {2023},
date = {2023-01-01},
urldate = {2023-01-01},
journal = {IEEE Transactions on Haptics},
pages = {1–6},
abstract = {During daily activities, humans routinely manipulate objects bimanually or with the help of a partner. This work explored how bimanual and dyadic coordination modes are impacted by the object's stiffness, which conditions inter-limb haptic communication. For this, we recruited twenty healthy participants who performed a virtual task inspired by object handling, where we looked at the initiation of force exchange and its continued maintenance while tracking. Our findings suggest that while individuals and dyads displayed different motor behaviours, which may stem from the dyad's need to estimate their partner's actions, they exhibited similar tracking accuracy. For both coordination modes, increased stiffness resulted in better tracking accuracy and more correlated motions, but required a larger effort through increased average torque. These results suggest that stiffness may be a key consideration in applications such as rehabilitation, where bimanual or external physical assistance is often provided.},
note = {Conference Name: IEEE Transactions on Haptics},
keywords = {bimanual control, Force, Grasping, human-human interaction, Monitoring, object stiffness, Target tracking, Task analysis, Torque, Virtual object manipulation, Wrist},
pubstate = {published},
tppubtype = {article}
}
During daily activities, humans routinely manipulate objects bimanually or with the help of a partner. This work explored how bimanual and dyadic coordination modes are impacted by the object's stiffness, which conditions inter-limb haptic communication. For this, we recruited twenty healthy participants who performed a virtual task inspired by object handling, where we looked at the initiation of force exchange and its continued maintenance while tracking. Our findings suggest that while individuals and dyads displayed different motor behaviours, which may stem from the dyad's need to estimate their partner's actions, they exhibited similar tracking accuracy. For both coordination modes, increased stiffness resulted in better tracking accuracy and more correlated motions, but required a larger effort through increased average torque. These results suggest that stiffness may be a key consideration in applications such as rehabilitation, where bimanual or external physical assistance is often provided.
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.