@proceedings {7254453, title = {Comparison of human haptic size identification and discrimination performance in real and simulated environments}, year = {2002}, note = {

human performance;size identification;size discrimination;simulated environments;haptic interface;machine performance levels;machine parameters;sub-optimal virtual environment;real environment;perception tasks;perceptual information;machine quality;maximum end-point force;system bandwidth;time delay;

}, pages = {10 - 17}, address = {Orlando, FL, USA}, abstract = {

The performance levels of human subjects in size identification and discrimination experiments in both real and virtual environments are presented. The virtual environments are displayed with a three degree-of-freedom haptic interface, developed at Vanderbilt University. The results indicate that performance of the size identification and discrimination tasks in the virtual environment is comparable to that in the real environment, implying that the haptic device does a good job of simulating reality for these tasks. Additionally, performance in the virtual environment was measured at below-maximum machine performance levels for three machine parameters. The tabulated scores for the perception tasks in a sub-optimal virtual environment were found to be comparable to that in the real environment, supporting previous claims that haptic interface hardware may be able to convey, for these perceptual tasks, sufficient perceptual information to the user with relatively low levels of machine quality in terms of the following parameters: maximum end-point force, system bandwidth and time delay

}, keywords = {delay estimation, force feedback, Haptic interfaces, human factors, mechanoception, Virtual reality}, url = {http://dx.doi.org/10.1109/HAPTIC.2002.998935}, attachments = {https://mahilab.rice.edu/sites/default/files/publications/omalley2002ieeehumanhaptic.pdf}, author = {Marcia Kilchenman and Michael Goldfarb} } @proceedings {01416683554, title = {Force saturation, system bandwidth, information transfer, and surface quality in haptic interfaces}, volume = {2}, year = {2001}, note = {

Information transfer;

}, pages = {1382 - 1387}, address = {Seoul}, abstract = {

This paper presents a two-part study of the effects of maximum endpoint force and system bandwidth on haptic perception. First, size identification experiments were performed to determine the effects of system quality, in terms of these two system parameters, on the ability of a human to identify square cross-section ridges by size in a simulated environment. Then, discrimination experiments were performed to determine relationships between haptic interface machine parameters and simulation quality in terms of perceived surface hardness. Results indicate that haptic interface hardware may be able to convey sufficient perceptual information to the user with relatively low levels of force feedback and system bandwidth, yet subjects can perceive improvements in simulated surface quality as levels are further increased.

}, keywords = {Bandwidth, Computer simulation, Computer software, Feedback, Hardness, Manipulators}, url = {http://dx.doi.org/10.1109/ROBOT.2001.932803}, attachments = {https://mahilab.rice.edu/sites/default/files/publications/omalley2001ieee.pdf}, author = {Marcia Kilchenman and Michael Goldfarb} } @proceedings {75, title = {Implications of haptic interface force saturation on the haptic display of detail}, volume = {69-2}, year = {2000}, pages = {1125-1131}, attachments = {https://mahilab.rice.edu/sites/default/files/publications/kilchenman2000asme.pdf}, author = {Marcia Kilchenman and Michael Goldfarb} }