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Rubber hand illusion

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https://www.readbyqxmd.com/read/28932382/feeling-touch-through-glass-a-modified-rubber-hand-paradigm
#1
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
#2
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
#3
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
#4
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
#5
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
#6
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...
August 5, 2017: Cognitive Processing
https://www.readbyqxmd.com/read/28735225/no-consistent-cooling-of-the-real-hand-in-the-rubber-hand-illusion
#7
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
#8
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
#9
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
#10
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
#11
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
#12
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
https://www.readbyqxmd.com/read/28611387/visuotactile-integration-modulates-motor-performance-in-a-perceptual-decision-making-task
#13
Klaudia Grechuta, Jelena Guga, Giovanni Maffei, Belen Ballester Rubio, Paul F M J Verschure
Body ownership is critically dependent on multimodal integration as for instance revealed in the Rubber Hand Illusion (RHI) and a number of studies which have addressed the neural correlates of the processes underlying this phenomenon. Both experimental and clinical research have shown that the structures underlying body ownership seem to significantly overlap with those of motor control including the parietal and ventral premotor cortices, Temporal Parietal Junction (TPJ) and the insula. This raises the question of whether this structural overlap between body ownership and motor control structures is of any functional significance...
June 13, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28577446/that-s-my-hand-therefore-that-s-my-willed-action-how-body-ownership-acts-upon-conscious-awareness-of-willed-actions
#14
Dalila Burin, Maria Pyasik, Adriana Salatino, Lorenzo Pia
Whether and how body ownership ("this body is mine") contributes to human conscious experience of voluntary action is still unclear. In order to answer this question, here we incorporated two signatures (i.e., an ad hoc questionnaire and the sensory attenuation paradigm) of human's sense of agency ("this action is due to my own will") within a well-known experimental manipulation of body ownership (i.e., the rubber hand illusion paradigm). In two different experiments, we showed that the illusory ownership over a fake hand (induced by the rubber hand illusion) triggered also an illusory agency over its movements at both explicit and implicit level...
September 2017: Cognition
https://www.readbyqxmd.com/read/28560494/spatial-limits-of-visuotactile-interactions-in-the-presence-and-absence-of-tactile-stimulation
#15
Laura Mirams, Ellen Poliakoff, Donna M Lloyd
The presence of a light flash near to the body not only increases the ability to detect a weak touch but also increases reports of feeling a weak touch that did not occur. The somatic signal detection task (SSDT) provides a behavioural marker by which to clarify the spatial extent of such visuotactile interactions in peripersonal space. Whilst previous evidence suggests a limit to the spatial extent over which visual input can distort the perception of tactile stimulation during the rubber hand illusion, the spatial boundaries of light-induced tactile sensations are not known...
May 30, 2017: Experimental Brain Research. Experimentelle Hirnforschung. Expérimentation Cérébrale
https://www.readbyqxmd.com/read/28532579/interoceptive-ingredients-of-body-ownership-affective-touch-and-cardiac-awareness-in-the-rubber-hand-illusion
#16
Laura Crucianelli, Charlotte Krahé, Paul M Jenkinson, Aikaterini Katerina Fotopoulou
The sense of body ownership represents a fundamental aspect of bodily self-consciousness. Using multisensory integration paradigms, recent studies have shown that both exteroceptive and interoceptive information contribute to our sense of body ownership. Interoception refers to the physiological sense of the condition of the body, including afferent signals that originate inside the body and outside the body. However, it remains unclear whether individual sensitivity to interoceptive modalities is unitary or differs between modalities...
May 1, 2017: Cortex; a Journal Devoted to the Study of the Nervous System and Behavior
https://www.readbyqxmd.com/read/28524804/from-mirror-touch-synesthesia-to-models-of-vicarious-experience-a-reply-to-commentaries
#17
Jamie Ward, Michael J Banissy
In this reply to the eight commentaries to our article, we discuss three important challenges. First, we discuss the relationship of mirror-touch to other forms of synesthesia. We note that synesthetic experiences are generally not mistaken as veridical but this does not mean that they lack percept-like qualities. We acknowledge that neither Threshold Theory nor Self-Other Theory offer a direct account of other forms of synesthesia, although we discuss how the latter could. Second, we discuss alternative explanations...
June 5, 2017: Cognitive Neuroscience
https://www.readbyqxmd.com/read/28515865/innocent-body-shadow-mimics-physical-body
#18
Kenri Kodaka, Ayaka Kanazawa
The paradigm of the rubber hand illusion was applied to a shadow to determine whether the body-shadow is a good candidate for the alternative belonging to our body. Three kinds of shadows, a physical hand, a hand-shaped cloth, and a rectangle cloth, were tested for this purpose. The questionnaire results showed that both anatomical similarity and visuo-proprioception correlation were effective in enhancing illusory ownership of the shadow. According to the proprioceptive drift measurement, whether the shadow purely originated from the physical body was a critical factor in yielding the significantly positive drift...
May 2017: I-Perception
https://www.readbyqxmd.com/read/28456392/asynchrony-in-the-rubber-hand-paradigm-unexpected-illusions-following-stroke
#19
Rebekah C White, Anne M Aimola Davies
No abstract text is available yet for this article.
August 2017: Cortex; a Journal Devoted to the Study of the Nervous System and Behavior
https://www.readbyqxmd.com/read/28455248/placebo-analgesia-from-a-rubber-hand
#20
Matthew J Coleshill, David N George, Giuliana Mazzoni
Placebo analgesia, reductions in pain after administration of an inert treatment, is a well documented phenomenon. We report, to our knowledge, the first demonstration that placebo analgesia can be experienced when a sham analgesic is applied onto a rubber hand. The effect was obtained by exploiting the rubber hand illusion, in which ownership is felt over a rubber arm that is unattached to the body. Under conditions of synchronous as well as asynchronous visuotactile stimulation, a thermal pain stimulus was delivered on the real arm of 20 participants and seemingly also on the rubber arm, before and after applying a sham analgesic and a control cream only to the rubber arm...
September 2017: Journal of Pain: Official Journal of the American Pain Society
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