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Rubber hand illusion

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https://www.readbyqxmd.com/read/27880880/heartfelt-embodiment-changes-in-body-ownership-and-self-identification-produce-distinct-changes-in-interoceptive-accuracy
#1
Maria L Filippetti, Manos Tsakiris
Interoceptive and exteroceptive information are both essential for the construction and update of self-awareness. Whereas several studies have shown how interoceptive accuracy or cardiac feedback influences body-awareness, no studies have looked at the reverse effect, namely how exteroceptively-driven changes in body-ownership and self-identification can influence individuals' ability to detect internal bodily signals. We exposed participants to the Rubber Hand Illusion (Experiment 1) and to the Enfacement Illusion (Experiment 2), and tested how this change in the sense of body-ownership and self-identification affected their interoceptive accuracy (IAcc)...
November 20, 2016: Cognition
https://www.readbyqxmd.com/read/27876453/-i-can-t-tell-whether-it-s-my-hand-a-pilot-study-of-the-neurophenomenology-of-body-representation-during-the-rubber-hand-illusion-in-trauma-related-disorders
#2
Daniela Rabellino, Sherain Harricharan, Paul A Frewen, Dalila Burin, Margaret C McKinnon, Ruth A Lanius
BACKGROUND: Early traumatic experiences are thought to be causal factors in the development of trauma-related dissociative experiences, including depersonalization and derealization. The rubber hand illusion (RHI), a well-known paradigm that measures multi-sensorial integration of a rubber hand into one's own body representation, has been used to investigate alterations in the experience of body ownership and of body representation. Critically, however, it has never been studied in individuals with trauma-related disorders...
2016: European Journal of Psychotraumatology
https://www.readbyqxmd.com/read/27869190/embodied-neurofeedback-with-an-anthropomorphic-robotic-hand
#3
Niclas Braun, Reiner Emkes, Jeremy D Thorne, Stefan Debener
Neurofeedback-guided motor imagery training (NF-MIT) has been suggested as a promising therapy for stroke-induced motor impairment. Whereas much NF-MIT research has aimed at signal processing optimization, the type of sensory feedback given to the participant has received less attention. Often the feedback signal is highly abstract and not inherently coupled to the mental act performed. In this study, we asked whether an embodied feedback signal is more efficient for neurofeedback operation than a non-embodiable feedback signal...
November 21, 2016: Scientific Reports
https://www.readbyqxmd.com/read/27853620/forward-modelling-the-rubber-hand-illusion-of-ownership-modifies-motor-sensory-predictions-by-the-brain
#4
Laura Aymerich-Franch, Damien Petit, Abderrahmane Kheddar, Gowrishankar Ganesh
The question of how we attribute observed body parts as our own, and the consequences of this attribution on our sensory-motor processes, is fundamental to understand how our brain distinguishes between self and other. Previous studies have identified interactions between the illusion of ownership, and multi-sensory integration and cross-sensory predictions by the brain. Here we show that illusory ownership additionally modifies the motor-sensory predictions by the brain. In our preliminary experiments, we observed a new numbness illusion following the classical rubber-hand illusion (RHI); brushing only the rubber hand after induction of the RHI results in illusory numbness in one's real hand...
August 2016: Royal Society Open Science
https://www.readbyqxmd.com/read/27847924/the-sense-of-body-ownership-in-schizophrenia-research-in-the-rubber-hand-illusion-paradigm
#5
Beata Mirucka
OBJECTIVES: The aim of the research was to explore the susceptibility to disturbances in one's sense of body ownership induced in patients with schizophrenia. The research questions were: 1) Is Rubber Hand Illusion (RHI) significantly more intense in a group of patients with schizophrenia than in a group of patients without a diagnosed mental illness? 2) Is there a correlation between disturbances in the sense of body ownership and the personality organization level, reflected in defense mechanisms? 3) Do the disturbances in the sense of body ownership correlate with the most common defense mechanisms? METHODS: 64 people took part in the study, including 31 patients with diagnosed schizophrenia, according to ICD-10 (93...
2016: Psychiatria Polska
https://www.readbyqxmd.com/read/27847822/multisensory-integration-in-the-virtual-hand-illusion-with-active-movement
#6
Woong Choi, Liang Li, Satoru Satoh, Kozaburo Hachimura
Improving the sense of immersion is one of the core issues in virtual reality. Perceptual illusions of ownership can be perceived over a virtual body in a multisensory virtual reality environment. Rubber Hand and Virtual Hand Illusions showed that body ownership can be manipulated by applying suitable visual and tactile stimulation. In this study, we investigate the effects of multisensory integration in the Virtual Hand Illusion with active movement. A virtual xylophone playing system which can interactively provide synchronous visual, tactile, and auditory stimulation was constructed...
2016: BioMed Research International
https://www.readbyqxmd.com/read/27821580/self-grounded-vision-hand-ownership-modulates-visual-location-through-cortical-beta-and-gamma-oscillations
#7
Nathan Faivre, Jonathan Doenz, Michele Scandola, Herberto Dhanis, Javier Bello Ruiz, Fosco Bernasconi, Roy Salomon, Olaf Blanke
: Vision is known to be shaped by context, defined by environmental and bodily signals. In the Taylor illusion, the size of an afterimage projected on one's hand changes according to proprioceptive signals conveying hand position. Here, we assessed whether the Taylor illusion does not just depend on the physical hand position, but also on bodily self-consciousness as quantified through illusory hand ownership. Relying on the somatic rubber hand illusion, we manipulated hand ownership, such that participants embodied a rubber hand placed next to their own hand...
November 7, 2016: Journal of Neuroscience: the Official Journal of the Society for Neuroscience
https://www.readbyqxmd.com/read/27798192/the-rubber-tail-illusion-as-evidence-of-body-ownership-in-mice
#8
Makoto Wada, Kouji Takano, Hiroki Ora, Masakazu Ide, Kenji Kansaku
: The ownership of one's body parts represents a fundamental aspect of self-consciousness. Accumulating empirical evidence supports the existence of this concept in humans and nonhuman primates, but it is unclear whether nonprimate mammals experience similar feelings. Therefore, the present study used rubber tails to investigate body ownership in rodents. When the real tails and rubber tails were synchronously stroked, the mice responded as if their own tails were touched when the rubber tails were grasped...
October 26, 2016: Journal of Neuroscience: the Official Journal of the Society for Neuroscience
https://www.readbyqxmd.com/read/27760692/decreased-motor-cortex-excitability-mirrors-own-hand-disembodiment-during-the-rubber-hand-illusion
#9
Francesco Della Gatta, Francesca Garbarini, Guglielmo Puglisi, Antonella Leonetti, Annamaria Berti, Paola Borroni
During the rubber hand illusion (RHI), subjects experience an artificial hand as part of their own body, while the real hand is subject to a sort of 'disembodiment'. Can this altered belief about the body also affect physiological mechanisms involved in body-ownership, such as motor control? Here we ask whether the excitability of the motor pathways to the real (disembodied) hand are affected by the illusion. Our results show that the amplitude of the motor-evoked potentials recorded from the real hand is significantly reduced, with respect to baseline, when subjects in the synchronous (but not in the asynchronous) condition experience the fake hand as their own...
October 20, 2016: ELife
https://www.readbyqxmd.com/read/27711234/a-virtual-reality-full-body-illusion-improves-body-image-disturbance-in-anorexia-nervosa
#10
Anouk Keizer, Annemarie van Elburg, Rossa Helms, H Chris Dijkerman
BACKGROUND: Patients with anorexia nervosa (AN) have a persistent distorted experience of the size of their body. Previously we found that the Rubber Hand Illusion improves hand size estimation in this group. Here we investigated whether a Full Body Illusion (FBI) affects body size estimation of body parts more emotionally salient than the hand. In the FBI, analogue to the RHI, participants experience ownership over an entire virtual body in VR after synchronous visuo-tactile stimulation of the actual and virtual body...
2016: PloS One
https://www.readbyqxmd.com/read/27651139/body-ownership-and-agency-task-dependent-effects-of-the-virtual-hand-illusion-on-proprioceptive-drift
#11
Satoshi Shibuya, Satoshi Unenaka, Yukari Ohki
Body ownership and agency are fundamental to self-consciousness. These bodily experiences have been intensively investigated using the rubber hand illusion, wherein participants perceive a fake hand as their own. After presentation of the illusion, the position of the participant's hand then shifts toward the location of the fake hand (proprioceptive drift). However, it remains controversial whether proprioceptive drift is able to provide an objective measurement of body ownership, and whether agency also affects drift...
September 20, 2016: Experimental Brain Research. Experimentelle Hirnforschung. Expérimentation Cérébrale
https://www.readbyqxmd.com/read/27646600/body-representations-in-schizophrenia-an-alteration-of-body-structural-description-is-common-to-people-with-schizophrenia-while-alterations-of-body-image-worsen-with-passivity-symptoms
#12
Kyran T Graham-Schmidt, Mathew T Martin-Iverson, Nicholas P Holmes, Flavie Waters
INTRODUCTION: Individuals with schizophrenia, particularly those with passivity symptoms, often feel that their actions and thoughts are controlled by an external agent. Recent evidence has elucidated the role of body representations in the aetiology of passivity symptoms, yet one representation - body structural description - has not yet been examined. Additionally, body image has rarely been examined outside of bodily illusions (e.g., rubber hand experiments) and external validation is required...
July 2016: Cognitive Neuropsychiatry
https://www.readbyqxmd.com/read/27639162/body-distortions-in-anorexia-nervosa-evidence-for-changed-processing-of-multisensory-bodily-signals
#13
Regine Zopf, Erika Contini, Chris Fowler, Naresh Mondraty, Mark A Williams
Body size and shape distortion is a core feature of Anorexia Nervosa (AN) - patients experience their body as fat while objectively being very thin. The cause of this distortion is unclear and disturbances in body perception could be involved. Body perception comprises estimating shape and location of one's body and requires integrating multisensory signals. We investigated if and how body location perception is changed and tested 23 AN patients and 23 healthy controls (HC) in a Rubber Hand Illusion (RHI) reaching paradigm...
November 30, 2016: Psychiatry Research
https://www.readbyqxmd.com/read/27620801/causal-dynamics-of-scalp-electroencephalography-oscillation-during-the-rubber-hand-illusion
#14
Noriaki Kanayama, Alberto Morandi, Kazuo Hiraki, Francesco Pavani
Rubber hand illusion (RHI) is an important phenomenon for the investigation of body ownership and self/other distinction. The illusion is promoted by the spatial and temporal contingencies of visual inputs near a fake hand and physical touches to the real hand. The neural basis of this phenomenon is not fully understood. We hypothesized that the RHI is associated with a fronto-parietal circuit, and the goal of this study was to determine the dynamics of neural oscillation associated with this phenomenon. We measured electroencephalography while delivering spatially congruent/incongruent visuo-tactile stimulations to fake and real hands...
September 12, 2016: Brain Topography
https://www.readbyqxmd.com/read/27592410/temporal-limits-on-rubber-hand-illusion-reflect-individuals-temporal-resolution-in-multisensory-perception
#15
Marcello Costantini, Jeffrey Robinson, Daniele Migliorati, Brunella Donno, Francesca Ferri, Georg Northoff
Synchronous, but not asynchronous, multisensory stimulation has been successfully employed to manipulate the experience of body ownership, as in the case of the rubber hand illusion. Hence, it has been assumed that the rubber hand illusion is bound by the same temporal rules as in multisensory integration. However, empirical evidence of a direct link between the temporal limits on the rubber hand illusion and those on multisensory integration is still lacking. Here we provide the first comprehensive evidence that individual susceptibility to the rubber hand illusion depends upon the individual temporal resolution in multisensory perception, as indexed by the temporal binding window...
September 1, 2016: Cognition
https://www.readbyqxmd.com/read/27561829/body-ownership-and-a-new-proprioceptive-role-for-muscle-spindles
#16
A A Butler, M E Héroux, S C Gandevia
Knowledge of which body parts belong to us is referred to as the sense of body ownership. There is increasing evidence that this important aspect of human proprioception is highly malleable. Research into ownership of individual body parts was stimulated by Botvinick and Cohen's rubber-hand illusion (Nature 391,1998, 756), which demonstrated that an artificial body part can be incorporated in one's body representation and can cause real body parts to be sensed erroneously. Here, we review key studies that have advanced our understanding of the sense of body ownership, including the important role played by multisensory integration and spatiotemporal congruence of sensory signals...
August 26, 2016: Acta Physiologica
https://www.readbyqxmd.com/read/27554087/inducing-ownership-over-an-other-perspective-with-a-visuo-tactile-manipulation
#17
Adria E N Hoover, Laurence R Harris
Seeing our body from a 'self' perspective while performing a movement improves our ability to detect asynchrony between the visual and proprioceptive information concerning that movement: a signature of enhanced body ownership referred to as the 'self-advantage'. We consequently experience no self-advantage when seeing our body from an 'other' perspective. Here we ask whether introducing visuo-tactile stimulation (VTS), similar to that used in the rubber hand illusion to invoke ownership over a dummy hand, would produce a self-advantage when viewing the body from a typically 'other' perspective...
August 23, 2016: Experimental Brain Research. Experimentelle Hirnforschung. Expérimentation Cérébrale
https://www.readbyqxmd.com/read/27454579/-robot-hand-illusion-under-delayed-visual-feedback-relationship-between-the-senses-of-ownership-and-agency
#18
Mohamad Arif Fahmi Ismail, Sotaro Shimada
The rubber hand illusion (RHI) is an illusion of the self-ownership of a rubber hand that is touched synchronously with one's own hand. While the RHI relates to visual and tactile integration, we can also consider a similar illusion with visual and motor integration on a fake hand. We call this a "robot hand illusion" (RoHI), which relates to both the senses of ownership and agency. Here we investigate the effect of delayed visual feedback on the RoHI. Participants viewed a virtual computer graphic hand controlled by their hand movement recorded using a data glove device...
2016: PloS One
https://www.readbyqxmd.com/read/27423343/body-plasticity-in-borderline-personality-disorder-a-link-to-dissociation
#19
Robin Bekrater-Bodmann, Boo Young Chung, Jens Foell, Dorothee Maria Gescher, Martin Bohus, Herta Flor
INTRODUCTION: Patients with borderline personality disorder (BPD) often report an unstable sense of self, which is further enhanced in dissociative states. As one consequence, BPD patients show a labile body percept, which might result in a higher degree of body plasticity. However, experimental data on body plasticity in BPD are not yet available. MATERIALS AND METHODS: The rubber hand illusion (RHI) probes the plasticity of one's body by inducing the feeling of ownership for an artificial limb...
August 2016: Comprehensive Psychiatry
https://www.readbyqxmd.com/read/27413556/functional-connectivity-analysis-of-nirs-data-under-rubber-hand-illusion-to-find-a-biomarker-of-sense-of-ownership
#20
Naoki Arizono, Yuji Ohmura, Shiro Yano, Toshiyuki Kondo
The self-identification, which is called sense of ownership, has been researched through methodology of rubber hand illusion (RHI) because of its simple setup. Although studies with neuroimaging technique, such as fMRI, revealed that several brain areas are associated with the sense of ownership, near-infrared spectroscopy (NIRS) has not yet been utilized. Here we introduced an automated setup to induce RHI, measured the brain activity during the RHI with NIRS, and analyzed the functional connectivity so as to understand dynamical brain relationship regarding the sense of ownership...
2016: Neural Plasticity
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