Credits: References, Videos
- Learn the main scientific methods for studying haptic perception
- Discover perceptual illusions involving the sense of touch
- Understand the usage of GFF devices in perception studies
Readings and Resources
- Ernst, M. O., & Banks, M. S. (2002). Humans integrate visual and haptic information in a statistically optimal fashion. Nature, 415(6870), 429-433.
- Jones, L. A., & Tan, H. Z. (2012). Application of psychophysical techniques to haptic research. IEEE transactions on haptics, 6(3), 268-284.
- Levitt, H. C. C. H. (1971). Transformed up‐down methods in psychoacoustics. The Journal of the Acoustical society of America, 49(2B), 467-477.
- Provancher, W. R., & Sylvester, N. D. (2009). Fingerpad skin stretch increases the perception of virtual friction. IEEE Transactions on Haptics, 2(4), 212-223.
- Robles-De-La-Torre, G., & Hayward, V. (2001). Force can overcome object geometry in the perception of shape through active touch. Nature, 412(6845), 445-448.
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Assignments(Example Solution Key)
1. What is the goal of psychophysics experiments?
2. What is the definition of just noticeable difference (JND)? How is it computed?
3. Design a haptic experiment that measures the JND for stiffness (or texture roughness) with GFF devices.
- What psychophysics method would you use? Why?
- What biases and confounding factors could be present?
- Find potential devices for running your experiment on Haptipedia. Justify your choice.
- What limitations could prevent you from finding the true JND value for stiffness (or texture roughness)?
Let us know your comments and questions about this chapter.