Evaluation of force and torque magnitude discrimination thresholds on the human hand-arm system

Authors:
M. Vicentini;S. Galvan;D. Botturi;P. Fiorini
Affiliations:
University of Verona, Verona, Italy;University of Verona, Verona, Italy;University of Verona, Verona, Italy;University of Verona, Verona, Italy
Venue:
ACM Transactions on Applied Perception (TAP)
Year:
2010

Citing 8
Cited 0

Force and touch feedback for virtual reality

Force and touch feedback for virtual reality
Measuring Just Noticeable Differences for Haptic Force Feedback: Implications for Rehabilitation

HAPTICS '02 Proceedings of the 10th Symposium on Haptic Interfaces for Virtual Environment and Teleoperator Systems
Realizing the full potential of virtual reality: human factors issues that could stand in the way

VRAIS '95 Proceedings of the Virtual Reality Annual International Symposium (VRAIS'95)
Deriving Haptic Design Guidelines from Human Physiological, Psychophysical, and Neurological Foundations

IEEE Computer Graphics and Applications
A Psychophysically Motivated Compression Approach for 3D Haptic Data

VR '06 Proceedings of the IEEE conference on Virtual Reality
Haptic discrimination of force direction and the influence of visual information

ACM Transactions on Applied Perception (TAP)
Effect of a Pneumatically Driven Haptic Interface on the Perceptional Capabilities of Human Operators

Presence: Teleoperators and Virtual Environments
The Benefit of Force Feedback in Surgery: Examination of Blunt Dissection

Presence: Teleoperators and Virtual Environments

Quantified Score

Hi-index	0.00

Visualization

Abstract

This article reports on experiments about haptic perception aimed at measuring the force/torque differential thresholds applied to the hand-arm system. The experimental work analyzes how force is sent back to the user by means of a 6 degrees-of-freedom haptic device. Our findings on force perception indicate that the just-noticeable-difference is generally higher than previously reported in the literature and not constant along the stimulus continuum. We found evidence that the thresholds change also among the different directions. Furthermore, asymmetries in force perceptions, which were not described in previous reports, can be evinced for most of the directions. These findings support our claim that human beings perceive forces differently along different directions, thus suggesting that perception can also be enhanced by suitable signal processing, that is, with a manipulation of the force signal before it reaches the haptic device. We think that the improvement of the user perception can have a great impact in many applications and in particular we are focusing on surgical teleoperation scenarios.