Effects of Likeness and Synchronicity on the Ownership Illusion over a Moving Virtual Robotic Arm and Hand

Bouke N. Krom, Milène Catoire, Alexander Toet, Roelof J.E. van Dijk, Johannes B.F. van Erp

Research output: Chapter in Book/Report/Conference proceedingConference contributionAcademicpeer-review

2 Citations (Scopus)


In this study we investigated body ownership over a virtual hand and arm as a function of their visual appearance (likeness) and synchronicity of visuo-tactile stimulation with a virtual electric toothbrush and a vibrotactile glove. In all conditions, participants controlled the movement of arm and fingers, maintaining synchronicity in motor-proprioceptive-visual signals. While the effects of varying likeness and temporal synchronicity of visual and haptic stimuli on the ownership illusion have both been investigated individually before, their relative contribution is still unknown. We find that likeness should be complete: making only the hand robotic reduces the subjective ownership illusion to same level as that of a full robotic arm and hand. Visuo-tactile synchronicity is not a hard prerequisite for an ownership illusion to occur: a high degree of agency with congruent motor-proprioceptive-visual cues and an arm/hand layout similar to one's own body can be sufficiently strong to overrule incongruent visuo-tactile cues. This work is part of a larger study on the relative contribution of factors such as likeness, viewing mode, tactile stimulation and degree of agency on the body ownership illusion. The results may contribute to the enhancement of dexterous performance in remote telemanipulation tasks.

Original languageEnglish
Title of host publication2019 IEEE World Haptics Conference, WHC 2019
Place of PublicationPiscataway, NJ
Number of pages6
ISBN (Electronic)978-1-5386-9461-9
ISBN (Print)978-1-5386-9462-6
Publication statusPublished - Jul 2019
Event2019 IEEE World Haptics Conference, WHC 2019: the 8th Joint Eurohaptics Conference and the IEEE Haptics Symposium - Tokyo, Japan
Duration: 9 Jul 201912 Jul 2019
Conference number: 8


Conference2019 IEEE World Haptics Conference, WHC 2019
Abbreviated titleWHC 2019

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