Perceptual Limits of Visual-Haptic Simultaneity in Virtual Reality Interactions

Massimiliano Di Luca, Arash Mahnan

Research output: Chapter in Book/Report/Conference proceedingConference contribution

2 Scopus citations

Abstract

The goal of this work is to establish the range of visual-haptic asynchronies that go unnoticed when touching an object. To perform a psychophysical study, however, we would need asynchronous visual-haptic stimuli, but because the contact of the finger with a real object inevitably creates synchronized haptic feedback, here we employ instead a virtual reproduction of the interaction. Participants immersed in a realistic Virtual Reality environment tapped on a virtual object with their index while viewing a fully articulated representation of their hand. Upon tapping, they received haptic feedback in the form of vibration at their fingertip. After each tap, participants judged whether they perceived the view of the contact and the haptic signal to be synchronous or asynchronous and they also reported which of the two seemed to happen first. Despite the difference between the two judgments, results indicate that none of the 19 participants could reliably detect the asynchrony if haptic feedback was presented less than 50ms after the view of the contact with an object. The asynchrony tolerated for haptic before visual feedback was instead only 15ms. These findings can be used as guidelines for haptic feedback in hand-based interactions in Virtual Reality.

Original languageEnglish (US)
Title of host publication2019 IEEE World Haptics Conference, WHC 2019
PublisherInstitute of Electrical and Electronics Engineers Inc.
Pages67-72
Number of pages6
ISBN (Electronic)9781538694619
DOIs
StatePublished - Jul 2019
Event2019 IEEE World Haptics Conference, WHC 2019 - Tokyo, Japan
Duration: Jul 9 2019Jul 12 2019

Publication series

Name2019 IEEE World Haptics Conference, WHC 2019

Conference

Conference2019 IEEE World Haptics Conference, WHC 2019
CountryJapan
CityTokyo
Period7/9/197/12/19

Bibliographical note

Publisher Copyright:
© 2019 IEEE.

Copyright:
Copyright 2020 Elsevier B.V., All rights reserved.

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