Re-association of Body Parts: Illusory Ownership of a Virtual Arm Associated With the Contralateral Real Finger by Visuo-Motor Synchrony

Overview

Journal Front Robot AI

Specialty Biomedical Engineering

Date 2021 Jan 27

PMID 33501195

Citations 5

Authors

Ryota Kondo

Yamato Tani

Maki Sugimoto

Kouta Minamizawa

Masahiko Inami

Michiteru Kitazaki

Affiliations

Soon will be listed here.

Abstract

Illusory ownership can be induced in a virtual body by visuo-motor synchrony. Our aim was to test the possibility of a re-association of the right thumb with a virtual left arm and express the illusory body ownership of the re-associated arm through a synchronous or asynchronous movement of the body parts through action and vision. Participants felt that their right thumb was the virtual left arm more strongly in the synchronous condition than in the asynchronous one, and the feeling of ownership of the virtual arm was also stronger in the synchronous condition. We did not find a significant difference in the startle responses to a sudden knife appearance to the virtual arm between the two synchrony conditions, as there was no proprioceptive drift of the thumb. These results suggest that a re-association of the right thumb with the virtual left arm could be induced by visuo-motor synchronization; however, it may be weaker than the natural association.

Citing Articles

Temporal visuomotor synchrony induces embodiment towards an avatar with biomechanically impossible arm movements.

Hapuarachchi H, Ishimoto H, Kitazaki M, Sugimoto M, Inami M Iperception. 2023; 14(6):20416695231211699.

PMID: 37969571 PMC: 10631331. DOI: 10.1177/20416695231211699.

Effect of connection induced upper body movements on embodiment towards a limb controlled by another during virtual co-embodiment.

Hapuarachchi H, Hagiwara T, Ganesh G, Kitazaki M PLoS One. 2023; 18(1):e0278022.

PMID: 36602991 DOI: 10.1371/journal.pone.0278022.

Knowing the intention behind limb movements of a partner increases embodiment towards the limb of joint avatar.

Hapuarachchi H, Kitazaki M Sci Rep. 2022; 12(1):11453.

PMID: 35882868 PMC: 9325764. DOI: 10.1038/s41598-022-15932-x.

Embodiment of supernumerary robotic limbs in virtual reality.

Arai K, Saito H, Fukuoka M, Ueda S, Sugimoto M, Kitazaki M Sci Rep. 2022; 12(1):9769.

PMID: 35760810 PMC: 9237069. DOI: 10.1038/s41598-022-13981-w.

Individuals Prioritize the Reach Straightness and Hand Jerk of a Shared Avatar over Their Own.

Hagiwara T, Ganesh G, Sugimoto M, Inami M, Kitazaki M iScience. 2020; 23(12):101732.

PMID: 33376966 PMC: 7756142. DOI: 10.1016/j.isci.2020.101732.

References

Kalckert A, Ehrsson H . The moving rubber hand illusion revisited: comparing movements and visuotactile stimulation to induce illusory ownership. Conscious Cogn. 2014; 26:117-32. DOI: 10.1016/j.concog.2014.02.003. View

Kalckert A, Ehrsson H . The Onset Time of the Ownership Sensation in the Moving Rubber Hand Illusion. Front Psychol. 2017; 8:344. PMC: 5345084. DOI: 10.3389/fpsyg.2017.00344. View

Maister L, Sebanz N, Knoblich G, Tsakiris M . Experiencing ownership over a dark-skinned body reduces implicit racial bias. Cognition. 2013; 128(2):170-8. PMC: 3750641. DOI: 10.1016/j.cognition.2013.04.002. View

Aglioti S, Smania N, Atzei A, Berlucchi G . Spatio-temporal properties of the pattern of evoked phantom sensations in a left index amputee patient. Behav Neurosci. 1998; 111(5):867-72. DOI: 10.1037//0735-7044.111.5.867. View

Guterstam A, Ehrsson H . Disowning one's seen real body during an out-of-body illusion. Conscious Cogn. 2012; 21(2):1037-42. DOI: 10.1016/j.concog.2012.01.018. View

Ramachandran V, Stewart M . Perceptual correlates of massive cortical reorganization. Science. 1992; 258(5085):1159-60. DOI: 10.1126/science.1439826. View

Petkova V, Khoshnevis M, Ehrsson H . The perspective matters! Multisensory integration in ego-centric reference frames determines full-body ownership. Front Psychol. 2011; 2:35. PMC: 3108400. DOI: 10.3389/fpsyg.2011.00035. View

Ramachandran V, Altschuler E . The use of visual feedback, in particular mirror visual feedback, in restoring brain function. Brain. 2009; 132(Pt 7):1693-710. DOI: 10.1093/brain/awp135. View

Lotze M, Grodd W, Birbaumer N, Erb M, Huse E, Flor H . Does use of a myoelectric prosthesis prevent cortical reorganization and phantom limb pain?. Nat Neurosci. 1999; 2(6):501-2. DOI: 10.1038/9145. View

10.

Kalckert A, Ehrsson H . The spatial distance rule in the moving and classical rubber hand illusions. Conscious Cogn. 2014; 30:118-32. DOI: 10.1016/j.concog.2014.08.022. View

11.

Kokkinara E, Slater M . Measuring the effects through time of the influence of visuomotor and visuotactile synchronous stimulation on a virtual body ownership illusion. Perception. 2014; 43(1):43-58. DOI: 10.1068/p7545. View

12.

Guterstam A, Petkova V, Ehrsson H . The illusion of owning a third arm. PLoS One. 2011; 6(2):e17208. PMC: 3044173. DOI: 10.1371/journal.pone.0017208. View

13.

Longo M, Schuur F, Kammers M, Tsakiris M, Haggard P . What is embodiment? A psychometric approach. Cognition. 2008; 107(3):978-98. DOI: 10.1016/j.cognition.2007.12.004. View

14.

Durgin F, Evans L, Dunphy N, Klostermann S, Simmons K . Rubber hands feel the touch of light. Psychol Sci. 2007; 18(2):152-7. DOI: 10.1111/j.1467-9280.2007.01865.x. View

15.

Peck T, Seinfeld S, Aglioti S, Slater M . Putting yourself in the skin of a black avatar reduces implicit racial bias. Conscious Cogn. 2013; 22(3):779-87. DOI: 10.1016/j.concog.2013.04.016. View

16.

Kondo R, Sugimoto M, Minamizawa K, Hoshi T, Inami M, Kitazaki M . Illusory body ownership of an invisible body interpolated between virtual hands and feet via visual-motor synchronicity. Sci Rep. 2018; 8(1):7541. PMC: 5954161. DOI: 10.1038/s41598-018-25951-2. View

17.

Petkova V, Ehrsson H . When right feels left: referral of touch and ownership between the hands. PLoS One. 2009; 4(9):e6933. PMC: 2734169. DOI: 10.1371/journal.pone.0006933. View

18.

Ehrsson H . The experimental induction of out-of-body experiences. Science. 2007; 317(5841):1048. DOI: 10.1126/science.1142175. View

19.

Yang T, Gallen C, Schwartz B, Bloom F, Ramachandran V, COBB S . Sensory maps in the human brain. Nature. 1994; 368(6472):592-3. DOI: 10.1038/368592b0. View

20.

Guterstam A, Gentile G, Ehrsson H . The invisible hand illusion: multisensory integration leads to the embodiment of a discrete volume of empty space. J Cogn Neurosci. 2013; 25(7):1078-99. DOI: 10.1162/jocn_a_00393. View