Haptic Exploration of Spheres: Anatomical Regions used for Perception

Haller, K. and Hannaford, B. (2011) Haptic Exploration of Spheres: Anatomical Regions used for Perception. In: Proceedings, IEEE World Congress on Haptics, Istanbul, Turkey.

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Humans can perceive differences in sphericity of objects in the hand within a certain error margin. Subjects can detect sphericity based on geometry, texture, and other physical cues. The part of the hand used to distinguish a perfect sphere from a distorted on is examined in this paper. In this experiment subjects were asked to discern a perfect steel ball bearing from a distorted one without visual cues. During the final discrimination task subjects were given a pair of spheres coated in ink, staining their hands where they touched the ball bearings. Photographs were taken of the ink- stained hands and analyzed with a grid based on anatomical features. The parts of the hand most commonly used among all subjects were the thumb and the area spanning the index and middle finger. These regions had an average ink coverage of between 81 and 100 percent, much higher values than the rest of the hand.

Item Type: Conference or Workshop Item (Paper)
Subjects: D Haptics
Depositing User: Brady Houston
Date Deposited: 14 Jul 2015 18:44
Last Modified: 14 Jul 2015 18:44
URI: http://brl.ee.washington.edu/eprints/id/eprint/190

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