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Rubber hand illusion

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https://www.readbyqxmd.com/read/29157413/incorporation-of-prosthetic-limbs-into-the-body-representation-of-amputees-evidence-from-the-crossed-hands-temporal-order-illusion
#1
Yuki Sato, Toshihiro Kawase, Kouji Takano, Charles Spence, Kenji Kansaku
Understanding how we consciously experience our bodies is a fundamental issue in both psychology and neuroscience. To date, the incorporation of nonbody objects into the body representation has been investigated extensively, and the incorporation of prosthetic arms in amputees has been demonstrated using the rubber hand illusion. In this study, we investigated the incorporation of prosthetic arms in amputees using the crossed hands illusion, in which successive somatosensory stimuli are delivered, one to each arm, at intervals of 300ms or less, and where arm crossing often causes inversion of perceived tactile temporal order...
2017: Progress in Brain Research
https://www.readbyqxmd.com/read/29147006/the-influence-of-skin-colour-on-the-experience-of-ownership-in-the-rubber-hand-illusion
#2
Marilia Lira, Julia H Egito, Patricia A Dall'Agnol, David M Amodio, Óscar F Gonçalves, Paulo S Boggio
Racial prejudice is associated with a fundamental distinction between "us" and "them"-a distinction linked to the perceived overlap between representations of the self and others. Implicit prejudice has been shown to reduce the intensity of White individuals' hand ownership sensation as induced by the Rubber Hand Illusion (RHI) with dark rubber hands. However, evidence for this link to implicit prejudice comes from self-report questionnaire data regarding the RHI. As an alternative, we assessed the onset time of the RHI...
November 16, 2017: Scientific Reports
https://www.readbyqxmd.com/read/29122723/the-neuronal-network-involved-in-self-attribution-of-an-artificial-hand-a-lesion-network-symptom-mapping-study
#3
Max Wawrzyniak, Julian Klingbeil, Daniel Zeller, Dorothee Saur, Joseph Classen
The feeling of body-ownership can be experimentally manipulated using the rubber hand illusion (RHI) paradigm. Participants experience a sense of ownership over an artificial hand when their hidden real hand and the visible artificial hand are synchronously stroked. Using lesion masks and behavioral data from a previous study on RHI failure in acute stroke patients, we here employed lesion network-symptom-mapping (LNSM) based on normative functional connectome data to identify lesion-dependent network connectivity related to the experience of self-attribution of an artificial hand in the RHI paradigm...
November 6, 2017: NeuroImage
https://www.readbyqxmd.com/read/29109038/movements-and-body-ownership-evidence-from-the-rubber-hand-illusion-after-mechanical-limb-immobilization
#4
Dalila Burin, Francesca Garbarini, Valentina Bruno, Carlotta Fossataro, Cristina Destefanis, Anna Berti, Lorenzo Pia
There is no consensus on whether, and to what extent, actions contribute to constructing awareness of one's own body. Here we investigated at both physiological and behavioral level whether a prolonged limb immobilization affects body ownership. We tested a group of healthy participants, whose left-hand movements were prevented by a cast for one week, and a control group without any movement restriction. In both groups, we measured the strength of the rubber hand illusion (i.e., proprioceptive shift and questionnaire on ownership) and the physiological parameters known to be modulated by short-term arm immobilization (i...
November 3, 2017: Neuropsychologia
https://www.readbyqxmd.com/read/29103810/subjective-behavioral-and-physiological-responses-to-the-rubber-hand-illusion-do-not-vary-with-age-in-the-adult-phase
#5
Priscila Palomo, Adrián Borrego, Ausiàs Cebolla, Roberto Llorens, Marcelo Demarzo, Rosa M Baños
The Rubber Hand Illusion (RHI) is a perceptual illusion that enables integration of artificial limbs into the body representation through combined multisensory integration. Most previous studies investigating the RHI have involved young healthy adults within a very narrow age range (typically 20-30 years old). The purpose of this paper was to determine the influence of age on the RHI. The RHI was performed on 93 healthy adults classified into three groups of age (20-35 years old, N = 41; 36-60 years old, N = 28; and 61-80 years old, N = 24), and its effects were measured with subjective (Embodiment of Rubber Hand Questionnaire), behavioral (proprioceptive drift), and physiological (changes in skin temperature and conductance) measures...
November 3, 2017: Consciousness and Cognition
https://www.readbyqxmd.com/read/29082527/time-touch-and-temperature-affect-perceived-finger-position-and-ownership-in-the-grasp-illusion
#6
Martin E Héroux, Nicolas Bayle, Annie A Butler, Simon C Gandevia
Perceived body position and ownership are fundamental to our ability to sense and interact with the world. Previous work indicates that temporally congruent, repetitive multisensory stimuli are needed to alter the sense of body ownership. In the present study 30 subjects passively grasped an artificial rubber finger with their left index and thumb while their right index finger, located 12 cm below, was lightly clamped. Fingers with varied physical characteristics were also passively grasped to determine how these characteristics influenced perceived body position and ownership...
October 29, 2017: Journal of Physiology
https://www.readbyqxmd.com/read/29060078/motor-imagery-enhancement-paradigm-using-moving-rubber-hand-illusion-system
#7
Minsu Song, Jonghyun Kim
Motor imagery (MI) has been widely used in neurorehabilitation and brain computer interface. The size of event-related desynchronization (ERD) is a key parameter for successful motor imaginary rehabilitation and BCI adaptation. Many studies have used visual guidance for enhancement/ amplification of motor imagery ERD amplitude, but their enhancements were not significant. We propose a novel ERD enhancing paradigm using body-ownership illusion, or also known as rubber hand illusion (RHI). The system was made by motorized, moving rubber hand which can simulate wrist extension...
July 2017: Conference Proceedings: Annual International Conference of the IEEE Engineering in Medicine and Biology Society
https://www.readbyqxmd.com/read/28982176/affective-vocalizations-influence-body-ownership-as-measured-in-the-rubber-hand-illusion
#8
Tahnée Engelen, Rebecca Watson, Francesco Pavani, Beatrice de Gelder
Emotional signals, like threatening sounds, automatically ready the perceiver to prepare an appropriate defense behavior. Conjecturing that this would manifest itself in extending the safety zone around the body we used the rubber hand illusion (RHI) to test this prediction. The RHI is a perceptual illusion in which body ownership is manipulated by synchronously stroking a rubber hand and real hand occluded from view. Many factors, both internal and external, have been shown to influence the strength of the illusion, yet the effect of emotion perception on body ownership remains unexplored...
2017: PloS One
https://www.readbyqxmd.com/read/28932382/feeling-touch-through-glass-a-modified-rubber-hand-paradigm
#9
Rebekah C White, Jiexin Li, David Shacklette
A variation on the rubber hand paradigm creates a striking illusion in which it seems to the participant that she or he is feeling touch through glass. This illusion provides insight about how individuals make use of predictive signals for integrating vision and touch.
September 2017: I-Perception
https://www.readbyqxmd.com/read/28891265/altered-bodily-self-consciousness-in-multiple-sclerosis
#10
Elena Nava, Flavia Mattioli, Chiara Gamberini, Chiara Stampatori, Fabio Bellomi, Chiara Turati, Ruggero Capra, Nadia Bolognini
In this study, we assessed the impact of multiple sclerosis (MS) on bodily self-consciousness (BSC) using the Rubber Hand Illusion. Patients with MS showed a dissociation between body ownership and self-location: they did report an explicit ownership of the rubber hand, but they did not point towards it, showing a defective ability of localizing body parts in space. This evidence indicates that MS may affect selective components of BSC, whose impairment may contribute to, and even worsen, the functional disability of MS...
September 10, 2017: Journal of Neuropsychology
https://www.readbyqxmd.com/read/28864079/rubber-hand-illusion-increases-pain-caused-by-electric-stimuli
#11
Marta Siedlecka, Nadine Spychała, Marta Łukowska, Karolina Wiercioch, Michał Wierzchoń
The rubber hand illusion (RHI) has been shown to alter the experience of pain, although studies have yielded inconsistent results. In this experiment tested the influence of RHI on the intensity of pain caused by electric stimuli. Electric stimuli were delivered to participants' experimental and control hands before RHI induction (control condition) and afterwards (experimental condition), in a procedure that was double-blind in respect to location and strength of noxious stimulation All hands were covered during the stimulation to avoid the analgesic effect of seeing one's own body part...
August 29, 2017: Journal of Pain: Official Journal of the American Pain Society
https://www.readbyqxmd.com/read/28813981/a-magnetic-compatible-supernumerary-robotic-finger-for-functional-magnetic-resonance-imaging-fmri-acquisitions-device-description-and-preliminary-results
#12
Irfan Hussain, Emiliano Santarnecchi, Andrea Leo, Emiliano Ricciardi, Simone Rossi, Domenico Prattichizzo
The Supernumerary robotic limbs are a recently introduced class of wearable robots that, differently from traditional prostheses and exoskeletons, aim at adding extra effectors (i.e., arms, legs, or fingers) to the human user, rather than substituting or enhancing the natural ones. However, it is still undefined whether the use of supernumerary robotic limbs could specifically lead to neural modifications in brain dynamics. The illusion of owning the part of body has been already proven in many experimental observations, such as those relying on multisensory integration (e...
July 2017: IEEE ... International Conference on Rehabilitation Robotics: [proceedings]
https://www.readbyqxmd.com/read/28790906/neurophysiological-correlates-of-the-rubber-hand-illusion-in-late-evoked-and-alpha-beta-band-activity
#13
Isa S Rao, Christoph Kayser
The rubber hand illusion (RHI) allows insights into how the brain resolves conflicting multisensory information regarding body position and ownership. Previous neuroimaging studies have reported a variety of neurophysiological correlates of illusory hand ownership, with conflicting results likely originating from differences in experimental parameters and control conditions. Here, we overcome these limitations by using a fully automated and precisely-timed visuo-tactile stimulation setup to record evoked responses and oscillatory responses in participants who felt the RHI...
2017: Frontiers in Human Neuroscience
https://www.readbyqxmd.com/read/28780698/multisensory-integration-and-age-dependent-sensitivity-to-body-representation-modification-induced-by-the-rubber-hand-illusion
#14
János Kállai, Péter Kincses, Beatrix Lábadi, Krisztina Dorn, Tibor Szolcsányi, Gergely Darnai, Ernő Hupuczi, József Janszky, Árpád Csathó
The aim of the present study was to compare junior and senior healthy participants for their multimodal integration capability. The instrument used for the investigation was the rubber hand illusion (RHI) where synchronous and asynchronous multimodal stimulation were applied. The study focused on assessing the rate of integration for visuo-tactile and visuo-proprioceptive stimuli. METHODS: From a large sample of right-handed volunteers, 50 senior employees (containing younger and middle age adults) and 51 senior retired (senior adults) participants were recruited...
November 2017: Cognitive Processing
https://www.readbyqxmd.com/read/28735225/no-consistent-cooling-of-the-real-hand-in-the-rubber-hand-illusion
#15
Alyanne M de Haan, Haike E Van Stralen, Miranda Smit, Anouk Keizer, Stefan Van der Stigchel, H Chris Dijkerman
In the rubber hand illusion (RHI), participants view a rubber hand that is stroked synchronously with their real, hidden hand. This procedure results in experiencing an increased sense of ownership over the rubber hand and demonstrates how multisensory information (vision, touch) can influence the sense of body ownership. However, it has also been suggested that a (lack of) sense of ownership over an own body part may in turn influence bodily processes. This suggestion has previously been supported by the observation that a decrease in skin temperature in the real hand correlated with ownership over the rubber hand...
September 2017: Acta Psychologica
https://www.readbyqxmd.com/read/28720401/multisensory-integration-induces-body-ownership-of-a-handtool-but-not-any-handtool
#16
Veronica Weser, Gianluca Finotti, Marcello Costantini, Dennis R Proffitt
Bodily boundaries are computed by integrating multisensory bodily signals and can be experimentally manipulated using bodily illusions. Research on tool use demonstrates that tools alter body representations motorically to account for changes in a user's action repertoire. The present experiment sought to unify perceptual and motoric accounts of tool embodiment using a modified Rubber Hand Illusion (RHI) that also addressed the skill and practice aspects of the tool use literature. In Experiment 1, synchronous multisensory stimulation induced perceptual embodiment of a tool, chopsticks...
July 16, 2017: Consciousness and Cognition
https://www.readbyqxmd.com/read/28716932/body-ownership-determines-the-attenuation-of-self-generated-tactile-sensations
#17
Konstantina Kilteni, H Henrik Ehrsson
Self-perception depends on the brain's abilities to differentiate our body from the environment and to distinguish between the sensations generated as a consequence of voluntary movement and those arising from events in the external world. The first process refers to the sense of ownership of our body and relies on the dynamic integration of multisensory (afferent) signals. The second process depends on internal forward models that use (efferent) information from our motor commands to predict and attenuate the sensory consequences of our movements...
August 1, 2017: Proceedings of the National Academy of Sciences of the United States of America
https://www.readbyqxmd.com/read/28705456/feeling-touch-on-the-own-hand-restores-the-capacity-to-visually-discriminate-it-from-someone-else-hand-pathological-embodiment-receding-in-brain-damage-patients
#18
Carlotta Fossataro, Valentina Bruno, Patrizia Gindri, Lorenzo Pia, Anna Berti, Francesca Garbarini
The sense of body ownership, i.e., the belief that a specific body part belongs to us, can be selectively impaired in brain-damaged patients. Recently, a pathological form of embodiment has been described in patients who, when the examiner's hand is located in a body-congruent position, systematically claim that it is their own hand (E+ patients). This paradoxical behavior suggests that, in these patients, the altered sense of body ownership also affects their capacity of visually discriminating the body-identity details of the own and the alien hand, even when both hands are clearly visible on the table...
June 23, 2017: Cortex; a Journal Devoted to the Study of the Nervous System and Behavior
https://www.readbyqxmd.com/read/28644914/the-role-of-expectation-in-multisensory-body-representation-neural-evidence
#19
Francesca Ferri, Ettore Ambrosini, Paola Pinti, Arcangelo Merla, Marcello Costantini
Sensory events contribute to body ownership, the feeling that the body belongs to me. However, the encoding of sensory events is not only reactive, but also proactive in that our brain generates prediction about forthcoming stimuli. In previous studies, we have shown that prediction of sensory events is a sufficient condition to induce the sense of body ownership. In this study, we investigated the underlying neural mechanisms. Participants were seated with their right arm resting upon a table just below another smaller table...
August 2017: European Journal of Neuroscience
https://www.readbyqxmd.com/read/28634447/the-moving-rubber-hand-illusion-reveals-that-explicit-sense-of-agency-for-tapping-movements-is-preserved-in-functional-movement-disorders
#20
Angela Marotta, Federica Bombieri, Massimiliano Zampini, Federico Schena, Carlo Dallocchio, Mirta Fiorio, Michele Tinazzi
Functional movement disorders (FMD) are characterized by motor symptoms (e.g., tremor, gait disorder, and dystonia) that are not compatible with movement abnormalities related to a known organic cause. One key clinical feature of FMD is that motor symptoms are similar to voluntary movements but are subjectively experienced as involuntary by patients. This gap might be related to abnormal self-recognition of bodily action, which involves two main components: sense of agency and sense of body ownership. The aim of this study was to systematically investigate whether this function is altered in FMD, specifically focusing on the subjective feeling of agency, body ownership, and their interaction during normal voluntary movements...
2017: Frontiers in Human Neuroscience
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