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Psychophysics of Haptic Interaction
Head: Ralph Hollis
Contact: Ralph Hollis (rhollis@cs.cmu.edu)

Mailing address:
Carnegie Mellon University
Robotics Institute
5000 Forbes Avenue
Pittsburgh, PA 15213

Associated lab/group: Microdynamic Systems Laboratory

For more information, see this project's homepage.

This page last updated - August 2005.

In the Microdynamics Systems Laboratory we are interested in measuring how much reality a haptic device can deliver (its fidelity). We have used our magnetic levitation haptic interface to perform a set of psychophysical experiments that examine the way in which users interact with real and virtual haptic worlds. For an introduction, an elementary discussion of haptics can be found in the encyclopedia article "Haptics" by Ralph Hollis.

Previous investigations of haptic fidelity have mostly focused on engineering qualities related to device kinematics and dynamics such as frequency response or position bandwidth. In contrast, psychophysical studies of haptic fidelity apply careful metrics to user task performance during the execution of a simple task.

Name - Title <Email Address>
• [Home] Ralph Hollis - Research Professor <rhollis@cs.cmu.edu>
• [Home] Roberta Klatzky - Professor <klatzky@cmu.edu>
• Hanns Tappeiner - PhD Student, RI <hwt+@andrew.cmu.edu>
• Bertram Unger - PhD Student, RI <bju@andrew.cmu.edu>

Note: This list may not be comprehensive. It contains only those publications in the RI publications database. Entries are listed in reverse chronological order.

• Haptic Rendering and Psychophysical Evaluation of a Virtual Three-Dimensional Helical Spring
  V. Varadharajan
  master's thesis, tech. report CMU-RI-TR-07-21, Robotics Institute, Carnegie Mellon University, May, 2007. [Abstract]
  Download: pdf [866 KB] copyrighted

• Virtual Peg-In-Hole Performance using a 6-DOF Magnetic Levitation Haptic Device: Comparison with Real Forces and with Visual Guidance Alone
  B. Unger, A. Nicolaidis, P. Berkelman, A. Thompson, S. Lederman, R. Klatzky, and R. Hollis
  Proceedings of the 10th Symposium on Haptic Interfaces for Virtual Environment and Teleoperator Systems (HAPTICS 2002), March, 2002, pp. 263 - 270. [Abstract]
  Download: pdf [408 KB] copyrighted

• Comparison of 3D Haptic Peg-In-Hole Tasks in Real and Virtual Environments
  B. Unger, A. Nicolaidis, P. Berkelman, A. Thompson, R. Klatzky, and R. Hollis
  Proceedings of the 2001 IEEE/RSJ International Conference on Intelligent Robots and Systems (IROS '01), Vol. 3, September, 2001, pp. 1751 - 1756. [Abstract]
  Download: pdf [383 KB] copyrighted