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Journal articles on the topic 'Visuo-tactile stimulation'

Author: Grafiati

Published: 9 March 2023

Last updated: 31 July 2025

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1

Preuss Mattsson, Nora, Sara Coppi, Marie Chancel, and H. Henrik Ehrsson. "Combination of visuo-tactile and visuo-vestibular correlations in illusory body ownership and self-motion sensations." PLOS ONE 17, no. 11 (2022): e0277080. http://dx.doi.org/10.1371/journal.pone.0277080.

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Previous studies have shown that illusory ownership over a mannequin’s body can be induced through synchronous visuo-tactile stimulation as well as through synchronous visuo-vestibular stimulation. The current study aimed to elucidate how three-way combinations of correlated visual, tactile and vestibular signals contribute to the senses of body ownership and self-motion. Visuo-tactile temporal congruence was manipulated by touching the mannequin’s body and the participant’s unseen real body on the trunk with a small object either synchronously or asynchronously. Visuo-vestibular temporal cong

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Martolini, Chiara, Giulia Cappagli, Sabrina Signorini, and Monica Gori. "Effects of Increasing Stimulated Area in Spatiotemporally Congruent Unisensory and Multisensory Conditions." Brain Sciences 11, no. 3 (2021): 343. http://dx.doi.org/10.3390/brainsci11030343.

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Research has shown that the ability to integrate complementary sensory inputs into a unique and coherent percept based on spatiotemporal coincidence can improve perceptual precision, namely multisensory integration. Despite the extensive research on multisensory integration, very little is known about the principal mechanisms responsible for the spatial interaction of multiple sensory stimuli. Furthermore, it is not clear whether the size of spatialized stimulation can affect unisensory and multisensory perception. The present study aims to unravel whether the stimulated area’s increase has a

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Shibuya, Satoshi, and Yukari Ohki. "Mu Rhythm Desynchronization while Observing Rubber Hand Movement in the Mirror: The Interaction of Body Representation with Visuo-Tactile Stimulation." Brain Sciences 13, no. 6 (2023): 969. http://dx.doi.org/10.3390/brainsci13060969.

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During rubber hand illusion (RHI), participants feel that a rubber (fake) hand is their own (i.e., embodiment of the rubber hand) if the unseen real hand and seen rubber hand are stroked synchronously (i.e., visuo-tactile stimuli). The RHI is also evoked if the real and rubber hands are placed in the same position (i.e., visual-proprioceptive congruency), which can be performed using a mirror setting. Using electroencephalography (EEG) and mirror settings, we compared μ rhythm (8–13 Hz) event-related desynchronization (ERD; an index of sensorimotor activation) while watching the movements of e

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Roel Lesur, Marte, Helena Aicher, Sylvain Delplanque, and Bigna Lenggenhager. "Being Short, Sweet, and Sour: Congruent Visuo-Olfactory Stimulation Enhances Illusory Embodiment." Perception 49, no. 6 (2020): 693–96. http://dx.doi.org/10.1177/0301006620928669.

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Bodily self-identification has shown to be easily altered through spatiotemporally congruent multimodal signals. While such manipulations are mostly studied through visuo-tactile or visuo-motor stimulation, here we investigated whether congruent visuo-olfactory cues might enhance illusory self-identification with an arbitrary object. Using virtual reality, healthy individuals saw a grapefruit from its supposed first-person perspective that was touched in synchrony with their own body. The touch attempted to replicate what was seen as softly squeezing the grapefruit. Crucially, when we addition

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Wang, Chenxi, Lanqi Gao, Chuan Zhang, Jun Li, and Jixin Liu. "Neurobiological Mechanisms of Enhanced Pain-Relieving Transcutaneous Electrical Nerve Stimulation via Visuo-Tactile Stimulation in Immersive Virtual Reality: Randomized Controlled Trial." Journal of Medical Internet Research 27 (March 19, 2025): e63137. https://doi.org/10.2196/63137.

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Background Enhancing the effectiveness of current pain relief strategies is a persistent clinical challenge. Although transcutaneous electrical nerve stimulation (TENS) is used in various painful conditions, its effectiveness may decline over time, requiring additional pain management strategies. Immersive virtual reality (VR) with personalized visuo-tactile stimulation has demonstrated analgesic properties. Nevertheless, whether visuo-tactile stimulation can enhance the pain-relieving outcomes of TENS and its underlying neurophysiological mechanisms remains largely unknown. Objective The stud

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Beck, Brianna, Caterina Bertini, and Elisabetta Ladavas. "Interpersonal multisensory stimulation and emotion: The impact of threat-indicative facial expressions on enfacement." Seeing and Perceiving 25 (2012): 97–98. http://dx.doi.org/10.1163/187847612x647306.

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Prior studies have identified an ‘enfacement effect’ in which participants incorporate another’s face into their self-face representation after observing that face touched repeatedly in synchrony with touch on their own face (Sforza et al., 2010; Tsakiris, 2008). The degree of self-face/other-face merging is positively correlated with participants’ trait-level empathy scores (Sforza et al., 2010) and affects judgments of the other’s personality (Paladino et al., 2010), suggesting that enfacement also modulates higher-order representations of ‘self’ and ‘other’ involved in social and emotional

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Campus, C., L. Brayda, F. De Carli, et al. "Tactile exploration of virtual objects for blind and sighted people: the role of beta 1 EEG band in sensory substitution and supramodal mental mapping." Journal of Neurophysiology 107, no. 10 (2012): 2713–29. http://dx.doi.org/10.1152/jn.00624.2011.

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The neural correlates of exploration and cognitive mapping in blindness remain elusive. The role of visuo-spatial pathways in blind vs. sighted subjects is still under debate. In this preliminary study, we investigate, as a possible estimation of the activity in the visuo-spatial pathways, the EEG patterns of blind and blindfolded-sighted subjects during the active tactile construction of cognitive maps from virtual objects compared with rest and passive tactile stimulation. Ten blind and ten matched, blindfolded-sighted subjects participated in the study. Events were defined as moments when t

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Porras Garcia, Bruno, Marta Ferrer Garcia, Agata Olszewska, et al. "Is This My Own Body? Changing the Perceptual and Affective Body Image Experience among College Students Using a New Virtual Reality Embodiment-Based Technique." Journal of Clinical Medicine 8, no. 7 (2019): 925. http://dx.doi.org/10.3390/jcm8070925.

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Body image disturbances (BIDs) have been widely studied using virtual reality (VR) devices that induce a full body illusion (FBI) and allow manipulation of the individual’s perceptual and affective experiences of the body. This study aimed to assess whether the induction of the FBI over a virtual body would produce changes in body-related anxiety and BIDs using a new whole-body visuo-tactile stimulation procedure. Fifty non-clinical participants were randomly assigned to synchronous or asynchronous visuo-tactile groups. During the pre-assessment, all participants filled in BIDs and body-anxiet

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Litwin, Piotr, Beata Zybura, and Paweł Motyka. "Tactile information counteracts the attenuation of rubber hand illusion attributable to increased visuo-proprioceptive divergence." PLOS ONE 15, no. 12 (2020): e0244594. http://dx.doi.org/10.1371/journal.pone.0244594.

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Sense of body ownership is an immediate and distinct experience of one’s body as belonging to oneself. While it is well-recognized that ownership feelings emerge from the integration of visual and somatosensory signals, the principles upon which they are integrated are still intensely debated. Here, we used the rubber hand illusion (RHI) to examine how the interplay of visual, tactile, and proprioceptive signals is governed depending on their spatiotemporal properties. For this purpose, the RHI was elicited in different conditions varying with respect to the extent of visuo-proprioceptive dive

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Segond, Hervé, Déborah Weiss, and Eliana Sampaio. "Human Spatial Navigation via a Visuo-Tactile Sensory Substitution System." Perception 34, no. 10 (2005): 1231–49. http://dx.doi.org/10.1068/p3409.

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Spatial navigation within a real 3-D maze was investigated to study space perception on the sole basis of tactile information transmitted by means of a ‘tactile vision substitution system' (TVSS) allowing the conversion of optical images—collected by a micro camera—into ‘tactile images’ via a matrix in contact with the skin. The development of such a device is based on concepts of cerebral and functional plasticity, enabling subjective reproduction of visual images from tactile data processing. Blindfolded sighted subjects had to remotely control the movements of a robot on which the TVSS came

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Sforza, Anna, Ilaria Bufalari, Patrick Haggard, and Salvatore M. Aglioti. "My face in yours: Visuo-tactile facial stimulation influences sense of identity." Social Neuroscience 5, no. 2 (2010): 148–62. http://dx.doi.org/10.1080/17470910903205503.

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Preatoni, Greta, Francesca Dell’Eva, Giacomo Valle, Alessandra Pedrocchi, and Stanisa Raspopovic. "Reshaping the full body illusion through visuo-electro-tactile sensations." PLOS ONE 18, no. 2 (2023): e0280628. http://dx.doi.org/10.1371/journal.pone.0280628.

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The physical boundaries of our body do not define what we perceive as self. This malleable representation arises from the neural integration of sensory information coming from the environment. Manipulating the visual and haptic cues produces changes in body perception, inducing the Full Body Illusion (FBI), a vastly used approach to exploring humans’ perception. After pioneering FBI demonstrations, issues arose regarding its setup, using experimenter-based touch and pre-recorded videos. Moreover, its outcome measures are based mainly on subjective reports, leading to biased results, or on hete

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Lunghi, Claudia, and M. Concetta Morrone. "Early Interaction between Vision and Touch during Binocular Rivalry." Multisensory Research 26, no. 3 (2013): 291–306. http://dx.doi.org/10.1163/22134808-00002411.

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Multisensory integration is known to occur at high neural levels, but there is also growing evidence that cross-modal signals can be integrated at the first stages of sensory processing. We investigated whether touch specifically affected vision during binocular rivalry, a particular type of visual bistability that engages neural competition in early visual cortices. We found that tactile signals interact with visual signals outside of awareness, when the visual stimulus congruent with the tactile one is perceptually suppressed during binocular rivalry and when the interaction is strictly tune

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Vallar, Giuseppe, Maria Luisa Rusconi, and Bruno Bernardini. "Modulation of neglect hemianesthesia by transcutaneous electrical stimulation." Journal of the International Neuropsychological Society 2, no. 5 (1996): 452–59. http://dx.doi.org/10.1017/s1355617700001533.

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AbstractThe effects of transcutaneous electrical stimulation on deficits of tactile perception contralateral to a hemispheric lesion were investigated in 10 right brain-damaged patients and in four left brain-damaged patients. The somatosensory deficit recovered, transiently and in part, after stimulation of the side of the neck contralateral to the side of the lesion, in all 10 patients with lesions in the right hemisphere, both with (six cases) and without (four cases) left visuo-spatial hemineglect, and in one left brain-damaged patient with right hemineglect. In three left brain-damaged pa

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Cardini, Flavia, Patrick Haggard, and Elisabetta Ladavas. "Seeing and feeling for self and other: Proprioceptive spatial location determines multisensory enhancement of touch." Seeing and Perceiving 25 (2012): 113. http://dx.doi.org/10.1163/187847612x647469.

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In the Visual Enhancement of Touch (VET), simply viewing one’s hand improves tactile spatial perception, even though vision is non-informative. While previous studies had suggested that looking at another person’s hand could also enhance tactile perception, no previous study had systematically investigated the differences between viewing one’s body and someone else’s. The aim of this study was to shed light on the relation between visuo–tactile interactions and the self-other distinction. In Experiment 1 we manipulated the spatial location where a hand was seen. Viewing one’s hand enhanced tac

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Tagini, Sofia, Federica Scarpina, Francesca Bruni, Massimo Scacchi, Alessandro Mauro, and Massimiliano Zampini. "The Virtual Hand Illusion in Obesity: Dissociation Between Multisensory Interactions Supporting Illusory Experience and Self-Location Recalibration." Multisensory Research 33, no. 3 (2020): 337–61. http://dx.doi.org/10.1163/22134808-20191425.

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Abstract The Rubber Hand Illusion (RHI) is used widely to investigate the multisensory integration mechanisms that support bodily self-consciousness and, more specifically, body ownership and self-location. It has been reported that individuals affected by obesity show anomalous multisensory integration processes. We propose that these obesity-induced changes could lead to an unusual susceptibility to the RHI and anomalous bodily self-experience. To test this hypothesis, we administered a modified version of the RHI (using a picture of the participant’s hand) to individuals affected by obesity

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17

Gordon, Calum, Alba Barbullushi, Stefano Tombolini, et al. "Visuo–tactile stimulation, but not type of movement, modulates pain during the vision of a moving virtual limb." Pain Management 9, no. 5 (2019): 449–60. http://dx.doi.org/10.2217/pmt-2019-0019.

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Aim: Evidence has revealed a relationship between pain and the observation of limb movement, but it is unknown whether different types of movements have diverse modulating effects. In this immersive virtual reality study, we explored the effect of the vision of different virtual arm movements (arm vs wrist) on heat pain threshold of healthy participants. Patients & methods: 40 healthy participants underwent four conditions in virtual reality, while heat pain thresholds were measured. Visuo–tactile stimulation was used to attempt to modulate the feeling of virtual limb ownership while the p

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Zazio, Agnese, Giacomo Guidali, Ottavia Maddaluno, Carlo Miniussi, and Nadia Bolognini. "Hebbian associative plasticity in the visuo-tactile domain: A cross-modal paired associative stimulation protocol." NeuroImage 201 (November 2019): 116025. http://dx.doi.org/10.1016/j.neuroimage.2019.116025.

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Guterstam, Arvid, Dennis E. O. Larsson, Joanna Szczotka, and H. Henrik Ehrsson. "Duplication of the bodily self: a perceptual illusion of dual full-body ownership and dual self-location." Royal Society Open Science 7, no. 12 (2020): 201911. http://dx.doi.org/10.1098/rsos.201911.

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Previous research has shown that it is possible to use multisensory stimulation to induce the perceptual illusion of owning supernumerary limbs, such as two right arms. However, it remains unclear whether the coherent feeling of owning a full-body may be duplicated in the same manner and whether such a dual full-body illusion could be used to split the unitary sense of self-location into two. Here, we examined whether healthy human participants can experience simultaneous ownership of two full-bodies, located either close in parallel or in two separate spatial locations. A previously described

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Dobricki, Martin, Betty J. Mohler, and Heinrich H. Bülthoff. "The structure of self-experience during visuo–tactile stimulation of a virtual and the physical body." Seeing and Perceiving 25 (2012): 214. http://dx.doi.org/10.1163/187847612x648413.

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The simultaneous visuo–tactile stimulation of an individual’s body and a virtual body (avatar) is an experimental method used to investigate the mechanisms of self-experience. Studies incorporating this method found that it elicits the experience of bodily ownership over the avatar. Moreover, as part of our own research we found that it also has an effect on the experience of agency, spatial presence, as well as on the perception of self-motion, and thus on self-localization. However, it has so far not been investigated whether these effects represent distinct categories within conscious exper

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Spaccasassi, Chiara, Ivana Frigione, and Angelo Maravita. "Bliss in and Out of the Body: The (Extra)Corporeal Space Is Impervious to Social Pleasant Touch." Brain Sciences 11, no. 2 (2021): 225. http://dx.doi.org/10.3390/brainsci11020225.

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Slow, gentle stimulation of hairy skin is generally accompanied by hedonic sensations. This phenomenon, also known as (positive) affective touch, is likely to be the basis of affiliative interactions with conspecifics by promoting inter-individual bindings. Previous studies on healthy humans have demonstrated that affective touch can remarkably impact behavior. For instance, by administering the Rubber Hand Illusion (RHI) paradigm, the embodiment of a fake hand enhances after a slow, affective touch compared to a fast, neutral touch. However, results coming from this area are not univocal. In

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Teaford, Max, Jason Gilliland, Olivia Hodkey, et al. "Preliminary Evaluation of the Moving Rubber Foot Illusion in a Sample of Female University Students." Perception 50, no. 11 (2021): 966–75. http://dx.doi.org/10.1177/03010066211058802.

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The Rubber Foot Illusion (RFI) is an illusion in which one is made to feel that a model foot is their own through synchronous visuo-tactile stimulation. Previous research suggests that the conditions the RFI can be elicited under are similar to those of the Rubber Hand Illusion (RHI). However, it was unknown if the RFI could be elicited by synchronous movement of a participant’s foot and a model foot. To examine this, we developed the Moving Rubber Foot Illusion (mRFI) and compared participants’ experience of it to the RFI. The results of this study suggests that the RFI can be elicited throug

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Provenzano, Luca, Giuseppina Porciello, Sofia Ciccarone, et al. "Characterizing Body Image Distortion and Bodily Self-Plasticity in Anorexia Nervosa via Visuo-Tactile Stimulation in Virtual Reality." Journal of Clinical Medicine 9, no. 1 (2019): 98. http://dx.doi.org/10.3390/jcm9010098.

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We combined virtual reality and multisensory bodily illusion with the aim to characterize and reduce the perceptual (body overestimation) and the cognitive-emotional (body dissatisfaction) components of body image distortion (BID) in anorexia nervosa (AN). For each participant (20 anorexics, 20 healthy controls) we built personalized avatars that reproduced their own body size, shape, and verisimilar increases and losses of their original weight. Body overestimation and dissatisfaction were measured by asking participants to choose the avatar that best resembled their real and ideal body. Resu

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Padilla-Castañeda, Miguel A., Antonio Frisoli, Silvia Pabon, and Massimo Bergamasco. "The Modulation of Ownership and Agency in the Virtual Hand Illusion under Visuotactile and Visuomotor Sensory Feedback." Presence: Teleoperators and Virtual Environments 23, no. 2 (2014): 209–25. http://dx.doi.org/10.1162/pres_a_00181.

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It is well known by the virtual hand illusion (VHI) that simultaneous and synchronous visuotactile sensory feedback within a virtual environment elicits the feeling of ownership of a virtual hand, by observing for some seconds in a scene a virtual hand being touched while at the same time receiving tactile stimulation on the real hand in the corresponding positions. In this paper, we investigate possible modulations in the feeling of ownership (sensation of owning a virtual hand) and of agency (sensation of owning virtual movements and actions) according to whether or not the participant's own

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Porras-Garcia, Bruno, Marta Ferrer-Garcia, Eduardo Serrano-Troncoso, et al. "Validity of Virtual Reality Body Exposure to Elicit Fear of Gaining Weight, Body Anxiety and Body-Related Attentional Bias in Patients with Anorexia Nervosa." Journal of Clinical Medicine 9, no. 10 (2020): 3210. http://dx.doi.org/10.3390/jcm9103210.

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Fear of gaining weight (FGW), body image disturbances, associated anxiety and body-related attentional bias are the core symptoms of anorexia nervosa (AN) and play critical roles in its development and maintenance. The aim of the current study is to evaluate the usefulness of virtual reality-based body exposure software for the assessment of important body-related cognitive and emotional responses in AN. Thirty female patients with AN, one of them subclinical, and 43 healthy college women, 25 with low body dissatisfaction (BD) and 18 with high BD, owned a virtual body that had their silhouette

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Gentili, Sandro, Maria Richetta, Stefano Mugnaini, S. Mancini, and Enrico M. Staderini. "The Use of Vibrotactile Stimulation for Improving Manual Tasks in Parkinson's Disease Patients." Materials Science Forum 879 (November 2016): 2348–51. http://dx.doi.org/10.4028/www.scientific.net/msf.879.2348.

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In spite of the potentially harmful effects of vibrations on the human body, a new path was recently opened for the use of these mechanical means in the therapeutic field. The stimulation of proprioceptive and exteroceptive sensitivity is the main target in both peripheral (diabetes type 1 and type 2) and central (stroke, Parkinson's disease multiple sclerosis) nervous system disorders, particularly for the recovery and maintenance of functional state. By the way the response to the treatment is highly variable from subject to subject. Our experimental apparatus consists of a virtual reality s

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Litwin, Piotr. "Extending Bayesian Models of the Rubber Hand Illusion." Multisensory Research 33, no. 2 (2020): 127–60. http://dx.doi.org/10.1163/22134808-20191440.

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Abstract Human body sense is surprisingly flexible — in the Rubber Hand Illusion (RHI), precisely administered visuo-tactile stimulation elicits a sense of ownership over a fake hand. The general consensus is that there are certain semantic top-down constraints on which objects may be incorporated in this way: in particular, to-be-embodied objects should be structurally similar to a visual representation stored in an internal body model. However, empirical evidence shows that the sense of ownership may extend to objects strikingly distinct in morphology and structure (e.g., robotic arms) and t

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Caola, Barbara, Martina Montalti, Alessandro Zanini, Antony Leadbetter, and Matteo Martini. "The Bodily Illusion in Adverse Conditions: Virtual Arm Ownership During Visuomotor Mismatch." Perception 47, no. 5 (2018): 477–91. http://dx.doi.org/10.1177/0301006618758211.

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Classically, body ownership illusions are triggered by cross-modal synchronous stimulations, and hampered by multisensory inconsistencies. Nonetheless, the boundaries of such illusions have been proven to be highly plastic. In this immersive virtual reality study, we explored whether it is possible to induce a sense of body ownership over a virtual body part during visuomotor inconsistencies, with or without the aid of concomitant visuo-tactile stimulations. From a first-person perspective, participants watched a virtual tube moving or an avatar’s arm moving, with or without concomitant synchr

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Rosenblum, Lisa, Alexander Kreß, Jakob C. B. Schwenk, and Frank Bremmer. "Visuo-tactile heading perception." Journal of Neurophysiology, October 19, 2022. http://dx.doi.org/10.1152/jn.00231.2022.

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Self-motion through an environment induces various sensory signals, i.e., visual, vestibular, auditory, or tactile. Numerous studies have investigated the role of visual and vestibular stimulation for the perception of self-motion direction (heading). Here, we investigated the rarely considered interaction of visual and tactile stimuli in heading perception. Participants were presented optic flow simulating forward self-motion across a horizontal ground plane (visual) or airflow towards the participants' forehead (tactile), or both. In separate blocks of trials, participants indicated perceive

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Pratviel, Yvan, Alix Bouni, Véronique Deschodt-Arsac, Florian Larrue, and Laurent M. Arsac. "Avatar embodiment in VR: Are there individual susceptibilities to visuo-tactile or cardio-visual stimulations?" Frontiers in Virtual Reality 3 (September 6, 2022). http://dx.doi.org/10.3389/frvir.2022.954808.

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Virtual reality has obvious potential to help humans developing/recovering brain functions, which operates through modulation of multisensory inputs. Some interventions using VR rely on the need to embody a virtual avatar, which stimulates cognitive-motor adaptations. Recent research has shown that embodiment can be facilitated by synchronizing natural sensory inputs with their visual redundancy on the avatar, e.g., the user’s heartbeat flashing around its avatar (cardio-visual stimulation) or the user’s body being physically stroked while the avatar is touched in synchronized conditions (visu

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Norris, Trevor A., Thomas E. Augenstein, Kazandra M. Rodriguez, Edward S. Claflin, and Chandramouli Krishnan. "Shaping corticospinal pathways in virtual reality: effects of task complexity and sensory feedback during mirror therapy in neurologically intact individuals." Journal of NeuroEngineering and Rehabilitation 21, no. 1 (2024). http://dx.doi.org/10.1186/s12984-024-01454-2.

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Abstract Background Restoration of limb function for individuals with unilateral weakness typically requires volitional muscle control, which is often not present for individuals with severe impairment. Mirror therapy—interventions using a mirror box to reflect the less-impaired limb onto the more-impaired limb—can facilitate corticospinal excitability, leading to enhanced recovery in severely impaired clinical populations. However, the mirror box applies limitations on mirror therapy, namely that all movements appear bilateral and are confined to a small area, impeding integration of complex

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Ono, Mikoto, Nobuyuki Hirose, and Shuji Mori. "Tactile information affects alternating visual percepts during binocular rivalry using naturalistic objects." Cognitive Research: Principles and Implications 7, no. 1 (2022). http://dx.doi.org/10.1186/s41235-022-00390-w.

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Abstract Introduction Past studies have provided evidence that the effects of tactile stimulation on binocular rivalry are mediated by primitive features (orientation and spatial frequency) common in vision and touch. In this study, we examined whether such effects on binocular rivalry can be obtained through the roughness of naturalistic objects. In three experiments, the total dominant time of visual percepts of two objects was measured under binocular rivalry when participants touched one of the objects. Result In Experiment 1, the total dominant time for the image of artificial turf and ba

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Maria, Del Vecchio, Fossataro Carlotta, Maria Zauli Flavia, et al. "Tonic somatosensory responses and deficits of tactile awareness converge in the parietal operculum." October 11, 2021. https://doi.org/10.1093/brain/awab384.

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Although clinical neuroscience and the neuroscience of consciousness have long sought mechanistic explanations of tactile-awareness disorders, mechanistic insights are rare, mainly because of the difficulty of depicting the fine- grained neural dynamics underlying somatosensory processes. Here, we combined the stereo-EEG responses to somatosensory stimulation with the lesion mapping of patients with a tactile-awareness disorder, namely tactile extinction. Whereas stereo-EEG responses present different temporal patterns, including early/phasic and long-lasting/tonic activities, tactile-extincti

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Farizon, D., P. F. Dominey, and J. Ventre-Dominey. "Insights on embodiment induced by visuo-tactile stimulation during robotic telepresence." Scientific Reports 11, no. 1 (2021). http://dx.doi.org/10.1038/s41598-021-02091-8.

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AbstractUsing a simple neuroscience-inspired procedure to beam human subjects into robots, we previously demonstrated by visuo-motor manipulations that embodiment into a robot can enhance the acceptability and closeness felt towards the robot. In that study, the feelings of likeability and closeness toward the robot were significantly related to the sense of agency, independently of the sensations of enfacement and location. Here, using the same paradigm we investigated the effect of a purely sensory manipulation on the sense of robotic embodiment associated to social cognition. Wearing a head

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Chen, Siyi, Zhuanghua Shi, Hermann J. Müller, and Thomas Geyer. "Multisensory visuo-tactile context learning enhances the guidance of unisensory visual search." Scientific Reports 11, no. 1 (2021). http://dx.doi.org/10.1038/s41598-021-88946-6.

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AbstractDoes multisensory distractor-target context learning enhance visual search over and above unisensory learning? To address this, we had participants perform a visual search task under both uni- and multisensory conditions. Search arrays consisted of one Gabor target that differed from three homogeneous distractors in orientation; participants had to discriminate the target’s orientation. In the multisensory session, additional tactile (vibration-pattern) stimulation was delivered to two fingers of each hand, with the odd-one-out tactile target and the distractors co-located with the cor

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Vabba, Alisha, Keisuke Suzuki, Milica Doric, Tim J. Möller, Sarah Garfinkel, and Hugo Critchley. "The Vagus Nerve as a Gateway to Body Ownership: taVNS Reduces Susceptibility to a Virtual Version of the Cardiac and Tactile Rubber Hand Illusion." Psychophysiology 62, no. 3 (2025). https://doi.org/10.1111/psyp.70040.

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ABSTRACTTranscutaneous auricular vagus nerve stimulation (taVNS) has been shown to influence cognitive and emotional function and enhance interoceptive awareness. This study investigates if taVNS effects extend to the experience of body ownership, as measured via susceptibility to the rubber hand illusion (RHI) in a virtual reality setting. The experiment involved 27 participants who underwent real and sham stimulation in two separate sessions while experiencing synchronous or asynchronous visuo‐cardiac and visuo‐tactile feedback on a virtual arm in place of their own. Results indicated that a

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Kristensen, Sofie S., Kaan Kesgin, and Henrik Jörntell. "High-dimensional cortical signals reveal rich bimodal and working memory-like representations among S1 neuron populations." Communications Biology 7, no. 1 (2024). http://dx.doi.org/10.1038/s42003-024-06743-z.

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AbstractComplexity is important for flexibility of natural behavior and for the remarkably efficient learning of the brain. Here we assessed the signal complexity among neuron populations in somatosensory cortex (S1). To maximize our chances of capturing population-level signal complexity, we used highly repeatable resolvable visual, tactile, and visuo-tactile inputs and neuronal unit activity recorded at high temporal resolution. We found the state space of the spontaneous activity to be extremely high-dimensional in S1 populations. Their processing of tactile inputs was profoundly modulated

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Moon, Hyuk-June, Louis Albert, Emanuela De Falco, et al. "Changes in spatial self-consciousness elicit grid cell–like representation in the entorhinal cortex." Proceedings of the National Academy of Sciences 121, no. 12 (2024). http://dx.doi.org/10.1073/pnas.2315758121.

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Grid cells in the entorhinal cortex (EC) encode an individual’s location in space, integrating both environmental and multisensory bodily cues. Notably, body-derived signals are also primary signals for the sense of self. While studies have demonstrated that continuous application of visuo-tactile bodily stimuli can induce perceptual shifts in self-location, it remains unexplored whether these illusory changes suffice to trigger grid cell–like representation (GCLR) within the EC, and how this compares to GCLR during conventional virtual navigation. To address this, we systematically induced il

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Cataldo, Antonio, Damiano Crivelli, Gabriella Bottini, Hiroaki Gomi, and Patrick Haggard. "Active self-touch restores bodily proprioceptive spatial awareness following disruption by ‘rubber hand illusion'." Proceedings of the Royal Society B: Biological Sciences 291, no. 2015 (2024). http://dx.doi.org/10.1098/rspb.2023.1753.

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Bodily self-awareness relies on a constant integration of visual, tactile, proprioceptive, and motor signals. In the ‘rubber hand illusion' (RHI), conflicting visuo-tactile stimuli lead to changes in self-awareness. It remains unclear whether other, somatic signals could compensate for the alterations in self-awareness caused by visual information about the body. Here, we used the RHI in combination with robot-mediated self-touch to systematically investigate the role of tactile, proprioceptive and motor signals in maintaining and restoring bodily self-awareness. Participants moved the handle

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Teaford, Max, Jared Fitzpatrick, and L. James Smart. "The Impact of Experimentally Induced Limb Ischemia on the Rubber Hand Illusion." Perception, December 7, 2020, 030100662097779. http://dx.doi.org/10.1177/0301006620977797.

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The rubber hand illusion (RHI) is a perceptual illusion in which one experiences an object as part of their body when synchronous visuo-tactile stimulation is applied to one’s hand and the object. There are a variety of factors that can impact the occurrence of the RHI. In the present study, we demonstrate that experimentally induced peripheral ischemia can impact the RHI, namely it can result in larger alterations to the perceived position of one’s hand. This study suggests that alterations to the cardiovascular system may be a source of individual differences in the RHI literature. Future st

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Rossi Sebastiano, Alice, Irene Ronga, Carlotta Fossataro, Mattia Galigani, Karol Poles, and Francesca Garbarini. "Multisensory-driven facilitation within the peripersonal space is modulated by the expectations about stimulus location on the body." Scientific Reports 12, no. 1 (2022). http://dx.doi.org/10.1038/s41598-022-21469-w.

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AbstractCompelling evidence from human and non-human studies suggests that responses to multisensory events are fastened when stimuli occur within the space surrounding the bodily self (i.e., peripersonal space; PPS). However, some human studies did not find such effect. We propose that these dissonant voices might actually uncover a specific mechanism, modulating PPS boundaries according to sensory regularities. We exploited a visuo-tactile paradigm, wherein participants provided speeded responses to tactile stimuli and rated their perceived intensity while ignoring simultaneous visual stimul

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Le Jeune, François, Marco D’Alonzo, Valeria Piombino, Alessia Noccaro, Domenico Formica, and Giovanni Di Pino. "Experiencing an elongated limb in virtual reality modifies the tactile distance perception of the corresponding real limb." eneuro, June 6, 2024, ENEURO.0244–23.2024. http://dx.doi.org/10.1523/eneuro.0244-23.2024.

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In measurement, a reference frame is needed to compare the measured object to something already known. This raises the neuroscientific question of which reference frame is used by humans when exploring the environment. Previous studies suggested that, in touch, the body employed as measuring tool also serves as reference frame. Indeed, an artificial modification of the perceived dimensions of the body changes the tactile perception of external object dimensions. However, it is unknown if such a change in tactile perception would occur when the body schema is modified through the illusion of ow

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Odermatt, Ingrid A., Karin A. Buetler, Nicolas Wenk, et al. "Congruency of Information Rather Than Body Ownership Enhances Motor Performance in Highly Embodied Virtual Reality." Frontiers in Neuroscience 15 (July 2, 2021). http://dx.doi.org/10.3389/fnins.2021.678909.

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In immersive virtual reality, the own body is often visually represented by an avatar. This may induce a feeling of body ownership over the virtual limbs. Importantly, body ownership and the motor system share neural correlates. Yet, evidence on the functionality of this neuroanatomical coupling is still inconclusive. Findings from previous studies may be confounded by the congruent vs. incongruent multisensory stimulation used to modulate body ownership. This study aimed to investigate the effect of body ownership and congruency of information on motor performance in immersive virtual reality

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Grewe, C. Martin, Tuo Liu, Andrea Hildebrandt, and Stefan Zachow. "The Open Virtual Mirror Framework for enfacement illusions." Behavior Research Methods, May 2, 2022. http://dx.doi.org/10.3758/s13428-021-01761-9.

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AbstractEnfacement illusions are traditionally elicited by visuo-tactile stimulation, but more active paradigms become possible through the usage of virtual reality techniques. For instance, virtual mirrors have been recently proposed to induce enfacement by visuo-motor stimulation. In a virtual mirror experiment, participants interact with an avatar that imitates their facial movements. The active control over the avatar greatly enhances the sense of agency, which is an important ingredient for successful enfacement illusion induction. Due to technological challenges, most virtual mirrors so

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Finotti, Gianluca, Sara Garofalo, Marcello Costantini, and Dennis R. Proffitt. "Temporal dynamics of the Rubber Hand Illusion." Scientific Reports 13, no. 1 (2023). http://dx.doi.org/10.1038/s41598-023-33747-2.

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AbstractIt is widely accepted that the representation of the body is not fixed and immutable, but rather flexible and constantly updated based on a continuous stream of multisensory information. This mechanism can be very useful to adapt to several situations, but it would not be adaptive if the body representation was too malleable or if it wasn’t capable of restoring its integrity after a transient modification. Here we used the Rubber Hand Illusion (RHI) to investigate how quickly the body representation can be modified. Previous studies have investigated the timing of the onset and offset

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Cook, Caryn, Laura Crucianelli, and Maria Laura Filippetti. "Changes in self-other boundaries modulate children’s body image attitudes." Frontiers in Human Neuroscience 17 (May 3, 2023). http://dx.doi.org/10.3389/fnhum.2023.1181395.

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One’s own face is a key distinctive feature of our physical appearance, yet multisensory visuo-tactile stimulation can alter self-other boundaries, eliciting changes in adult’s self-face representation and social cognition processes. This study tested whether changing self-face representation by altering self-other boundaries with the enfacement illusion modulates body image attitudes toward others in 6−11-year-old children (N = 51; 31 girls; predominantly White). Across all ages, congruent multisensory information led to stronger enfacement (η2p = 0.06). Participants who experienced a stronge

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Song, Zhe, Xiting Zhang, Xiaotian Xu, et al. "The effects of immersion and visuo-tactile stimulation on motor imagery in stroke patients are related to the sense of ownership." IEEE Transactions on Neural Systems and Rehabilitation Engineering, 2024, 1. http://dx.doi.org/10.1109/tnsre.2024.3364505.

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Toi, Chiharu, Akira Ishiguchi, and Shu Imaizumi. "Height of the first-person perspective affects the out-of-body experience illusion." Frontiers in Virtual Reality 5 (September 13, 2024). http://dx.doi.org/10.3389/frvir.2024.1445725.

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Bodily illusions have been used to investigate one’s sense of self and body ownership. This study explored the effect of the height of the first-person perspective (1PP) on out-of-body experience (OBE) illusion in which participants see their backs through a head-mounted display, receive visuo-tactile stimulation, and gradually feel as if they are sitting behind themselves, experiencing a sensation similar to an OBE. We hypothesized that increasing or decreasing the height of the 1PP would induce the OBE illusion at all heights and that participants’ perceived own heights would adjust accordin

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Panagiotopoulou, Elena, Laura Crucianelli, Alessandra Lemma, and Aikaterini Fotopoulou. "Identifying with the beautiful: Facial attractiveness effects on unisensory and multisensory self–other distinction." Quarterly Journal of Experimental Psychology, October 13, 2021, 174702182110503. http://dx.doi.org/10.1177/17470218211050318.

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People tend to evaluate their own traits and abilities favourably and such favourable self-perceptions extend to attractiveness. However, the exact mechanism underlying this self-enhancement bias remains unclear. One possibility could be the identification with attractive others through blurring of self–other boundaries. Across two experiments, we used the enfacement illusion to investigate the effect of others’ attractiveness in the multisensory perception of the self. In Experiment 1 ( N = 35), participants received synchronous or asynchronous interpersonal visuo-tactile stimulation with an

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Panagiotopoulou, Elena, Laura Crucianelli, Alessandra Lemma, and Aikaterini Fotopoulou. "Identifying with the beautiful: Facial attractiveness effects on unisensory and multisensory self–other distinction." Quarterly Journal of Experimental Psychology, October 13, 2021, 174702182110503. http://dx.doi.org/10.1177/17470218211050318.

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People tend to evaluate their own traits and abilities favourably and such favourable self-perceptions extend to attractiveness. However, the exact mechanism underlying this self-enhancement bias remains unclear. One possibility could be the identification with attractive others through blurring of self–other boundaries. Across two experiments, we used the enfacement illusion to investigate the effect of others’ attractiveness in the multisensory perception of the self. In Experiment 1 ( N = 35), participants received synchronous or asynchronous interpersonal visuo-tactile stimulation with an

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