Open AccessCorrecting for Visuo-Haptic Biases in 3D Haptic Guidance
Author(s) -
Femke E. van Beek,
Irene A. Kuling,
Eli Brenner,
Wouter M. Bergmann Tiest,
Astrid M. L. Kappers
Publication year - 2016
Publication title -
plos one
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.99
H-Index - 332
ISSN - 1932-6203
DOI - 10.1371/journal.pone.0158709
Subject(s) - haptic technology , stereotaxy , computer science , perception , computer vision , artificial intelligence , haptic perception , task (project management) , point (geometry) , human–computer interaction , psychology , engineering , mathematics , geometry , systems engineering , neuroscience
Visuo-haptic biases are observed when bringing your unseen hand to a visual target. The biases are different between, but consistent within participants. We investigated the usefulness of adjusting haptic guidance to these user-specific biases in aligning haptic and visual perception. By adjusting haptic guidance according to the biases, we aimed to reduce the conflict between the modalities. We first measured the biases using an adaptive procedure. Next, we measured performance in a pointing task using three conditions: 1) visual images that were adjusted to user-specific biases, without haptic guidance, 2) veridical visual images combined with haptic guidance, and 3) shifted visual images combined with haptic guidance. Adding haptic guidance increased precision. Combining haptic guidance with user-specific visual information yielded the highest accuracy and the lowest level of conflict with the guidance at the end point. These results show the potential of correcting for user-specific perceptual biases when designing haptic guidance.