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Rubber hand illusion

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https://www.readbyqxmd.com/read/28532579/interoceptive-ingredients-of-body-ownership-affective-touch-and-cardiac-awareness-in-the-rubber-hand-illusion
#1
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-synaesthesia-to-models-of-vicarious-experience-a-reply-to-commentaries
#2
Jamie Ward, Michael J Banissy
In this reply to the eight commentaries to our article (Ward & Banissy, 2015) we discuss three important challenges. Firstly, we discuss the relationship of mirror-touch to other forms of synaesthesia. We note that synaesthetic 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 synaesthesia, although we discuss how the latter could. Secondly, we discuss alternative explanations...
May 19, 2017: Cognitive Neuroscience
https://www.readbyqxmd.com/read/28515865/innocent-body-shadow-mimics-physical-body
#3
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
#4
Rebekah C White, Anne M Aimola Davies
No abstract text is available yet for this article.
March 31, 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
#5
M J Coleshill, D N George, G Mazzoni
Placebo analgesia, reductions in pain following administration of an inert treatment, is a well-documented phenomenon. We report 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 both synchronous and asynchronous visuo-tactile stimulation, a thermal pain stimulus was delivered on the real arm of twenty participants and seemingly also on the rubber arm, before and after applying a sham analgesic and a control cream only to the rubber arm...
April 25, 2017: Journal of Pain: Official Journal of the American Pain Society
https://www.readbyqxmd.com/read/28439234/salivary-oxytocin-concentration-associates-with-the-subjective-feeling-of-body-ownership-during-the-rubber-hand-illusion
#6
Masakazu Ide, Makoto Wada
Oxytocin is a hormone of the posterior pituitary that promotes lactation, maternal bonding, and birth. Recent studies have shown that oxytocin may modulate social recognition in both sexes, and thus it may be related to empathy. Brain regions that are associated with social recognition and empathy (e.g., the insular cortex) are activated in the rubber hand illusion (RHI), which involves illusory ownership of a rubber hand caused by brush strokes applied synchronously to both a rubber hand and one of the participant's hand, which is hidden from view...
2017: Frontiers in Human Neuroscience
https://www.readbyqxmd.com/read/28419720/illusory-hand-ownership-in-a-patient-with-personal-neglect-for-the-upper-limb-but-no-somatoparaphenia
#7
Roberta Ronchi, Lukas Heydrich, Andrea Serino, Olaf Blanke
The symptoms of patients with left personal neglect are characterized by inattention towards contralesional (left) body parts while at the same time explicitly ascertaining ownership for the neglected hemibody. It is currently unknown if personal neglect is associated with more subtle or implicit disturbances of own body perception and body ownership as measured with the rubber hand illusion. In this study, we report data from a patient with a right hemispheric lesion and personal neglect, without associated somatosensory deficits...
April 17, 2017: Journal of Neuropsychology
https://www.readbyqxmd.com/read/28345944/enhanced-integration-of-multisensory-body-information-by-proximity-to-habitual-action-space
#8
Harriet Dempsey-Jones, Ada Kritikos
Previous research suggests integration of visual and somatosensory inputs is enhanced within reaching (peripersonal) space. In such experiments, somatosensory inputs are presented on the body while visual inputs are moved relatively closer to, or further from the body. It is unclear, therefore, whether enhanced integration in "peripersonal space" is truly due to proximity of visual inputs to the body space, or, simply the distance between the inputs (which also affects integration). Using a modified induction of the rubber hand illusion, here we measured proprioceptive drift as an index of visuosomatosensory integration when distance between the two inputs was constrained, and absolute distance from the body was varied...
April 2017: Journal of Experimental Psychology. Human Perception and Performance
https://www.readbyqxmd.com/read/28344566/the-onset-time-of-the-ownership-sensation-in-the-moving-rubber-hand-illusion
#9
Andreas Kalckert, H H Ehrsson
The rubber hand illusion (RHI) is a perceptual illusion whereby a model hand is perceived as part of one's own body. This illusion has been extensively studied, but little is known about the temporal evolution of this perceptual phenomenon, i.e., how long it takes until participants start to experience ownership over the model hand. In the present study, we investigated a version of the rubber hand experiment based on finger movements and measured the average onset time in active and passive movement conditions...
2017: Frontiers in Psychology
https://www.readbyqxmd.com/read/28289799/does-affective-touch-influence-the-virtual-reality-full-body-illusion
#10
Jutta R de Jong, Anouk Keizer, Manja M Engel, H Chris Dijkerman
The sense of how we experience our physical body as our own represents a fundamental component of human self-awareness. Body ownership can be studied with bodily illusions which are generated by inducing a visuo-tactile conflict where individuals experience illusionary ownership over a fake body or body part, such as a rubber hand. Previous studies showed that different types of touch modulate the strength of experienced ownership over a rubber hand. Specifically, participants experienced more ownership after the rubber hand illusion was induced through affective touch vs non-affective touch...
March 13, 2017: Experimental Brain Research. Experimentelle Hirnforschung. Expérimentation Cérébrale
https://www.readbyqxmd.com/read/28287602/creating-virtual-hand-and-virtual-face-illusions-to-investigate-self-representation
#11
Ke Ma, Dominique P Lippelt, Bernhard Hommel
Studies investigating how people represent themselves and their own body often use variants of "ownership illusions", such as the traditional rubber-hand illusion or the more recently discovered enfacement illusion. However, these examples require rather artificial experimental setups, in which the artificial effector needs to be stroked in synchrony with the participants' real hand or face-a situation in which participants have no control over the stroking or the movements of their real or artificial effector...
March 1, 2017: Journal of Visualized Experiments: JoVE
https://www.readbyqxmd.com/read/28263626/predisposition-to-out-of-body-experience-obe-is-associated-with-aberrations-in-multisensory-integration-psychophysiological-support-from-a-rubber-hand-illusion-study
#12
Jason J Braithwaite, Derrick G Watson, Hayley Dewe
It has been argued that disorders in body-ownership and aberrant experiences in self-consciousness are due to biases in multisensory integration. Here we examine whether such biases are also associated with spontaneous out-of-body experiences (OBEs) in a nonclinical population. One-hundred and 80 participants took part in a rubber hand illusion (RHI) experiment with synchronous and asynchronous visual and tactile stimulation. A realistic threat was delivered to the rubber hand after a fixed period of stimulation...
March 6, 2017: Journal of Experimental Psychology. Human Perception and Performance
https://www.readbyqxmd.com/read/28251370/comt-genotype-is-associated-with-plasticity-in-sense-of-body-ownership-a-pilot-study
#13
Motoyasu Honma, Takuya Yoshiike, Hiroki Ikeda, Kenichi Kuriyama
The sense of body ownership constantly adapts to new environments, and awareness of a distinction between oneself and others is a fundamental ability. However, it remains unclear whether plasticity in the sense of body ownership is dependent on genetic factors. The present study investigated the influence of the catechol-O-methyltransferase (COMT) Val(158)Met genotype on illusory learning of a sense of body ownership and dissociation. 76 healthy Japanese participants experienced the rubber hand illusion (RHI), which is produced by sensory integration of conflicting modalities, with the intent to experimentally alter objective perceived locations and subjective ownership ratings...
March 1, 2017: Psychological Research
https://www.readbyqxmd.com/read/28203632/timing-disownership-experiences-in-the-rubber-hand-illusion
#14
Timothy Lane, Su-Ling Yeh, Philip Tseng, An-Yi Chang
Some investigators of the rubber hand illusion (RHI) have suggested that when standard RHI induction procedures are employed, if the rubber hand is experienced by participants as owned, their corresponding biological hands are experienced as disowned. Others have demurred: drawing upon a variety of experimental data and conceptual considerations, they infer that experience of the RHI might include the experience of a supernumerary limb, but that experienced disownership of biological hands does not occur. Indeed, some investigators even categorically deny that any experimental paradigm has been employed or any evidence can be adduced to support the claim that disownership experiences occur during the RHI...
2017: Cognitive Research: Principles and Implications
https://www.readbyqxmd.com/read/28186673/modulation-of-fronto-parietal-connections-during-the-rubber-hand-illusion
#15
Anke Ninija Karabanov, Anina Ritterband-Rosenbaum, Mark Schram Christensen, Hartwig Roman Siebner, Jens Bo Nielsen
Accumulating evidence suggests that parieto-frontal connections play a role in adjusting body ownership during the Rubber Hand Illusion (RHI). Using a motor version of the rubber hand illusion paradigm, we applied single-site and dual-site transcranial magnetic stimulation (TMS) to investigate cortico-spinal and parietal-frontal connectivity during perceived rubber hand ownership. Healthy volunteers received a conditioning TMS pulse over left anterior intraparietal sulcus (aIPS) and a test TMS pulse over left primary motor cortex (M1)...
April 2017: European Journal of Neuroscience
https://www.readbyqxmd.com/read/28153639/parkinson-s-disease-alters-multisensory-perception-insights-from-the-rubber-hand-illusion
#16
Catherine Ding, Colin J Palmer, Jakob Hohwy, George J Youssef, Bryan Paton, Naotsugu Tsuchiya, Julie C Stout, Dominic Thyagarajan
BACKGROUND: Manipulation of multisensory integration induces illusory perceptions of body ownership. Patients with Parkinson's disease (PD), a neurodegenerative disorder characterised by striatal dopamine deficiency, are prone to illusions and hallucinations and have sensory deficits. Dopaminergic treatment also aggravates hallucinations in PD. Whether multisensory integration in body ownership is altered by PD is unexplored. OBJECTIVE: To study the effect of dopamine neurotransmission on illusory perceptions of body ownership...
January 31, 2017: Neuropsychologia
https://www.readbyqxmd.com/read/28108385/seeing-an-embodied-virtual-hand-is-analgesic-contingent-on-co-location
#17
Birgit Nierula, Matteo Martini, Marta Matamala-Gomez, Mel Slater, Maria V Sanchez-Vives
Seeing one's own body has been reported to have analgesic properties. Analgesia has also been described when seeing an embodied virtual body co-located with the real one. However, there is a controversy regarding whether this effect holds true when seeing an illusory-owned body part, such as during the rubber-hand illusion. A critical difference between these paradigms is the distance between real and surrogate body part. Co-location of real arm and surrogate is possible in an immersive virtual environment, but not during illusory ownership of a rubber arm...
January 17, 2017: Journal of Pain: Official Journal of the American Pain Society
https://www.readbyqxmd.com/read/28106139/spatio-temporal-tolerance-of-visuo-tactile-illusions-in-artificial-skin-by-recurrent-neural-network-with-spike-timing-dependent-plasticity
#18
Alexandre Pitti, Ganna Pugach, Philippe Gaussier, Sotaro Shimada
Perceptual illusions across multiple modalities, such as the rubber-hand illusion, show how dynamic the brain is at adapting its body image and at determining what is part of it (the self) and what is not (others). Several research studies showed that redundancy and contingency among sensory signals are essential for perception of the illusion and that a lag of 200-300 ms is the critical limit of the brain to represent one's own body. In an experimental setup with an artificial skin, we replicate the visuo-tactile illusion within artificial neural networks...
January 20, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28080303/the-development-of-a-cross-modal-sense-of-body-ownership
#19
Elena Nava, Nadia Bolognini, Chiara Turati
In this study, we investigated the contribution of tactile and proprioceptive cues to the development of the sense of body ownership by testing the susceptibility of 4- to 5-year-old children, 8- to 9-year-old children, and adults to the somatic rubber-hand illusion (SRHI). We found that feelings of owning a rubber hand in the SHRI paradigm, as assessed by explicit reports (i.e., questionnaire), are already present by age 4 and do not change throughout development. In contrast, the effect of the illusion on the sense of hand position, as assessed by a pointing task, was present only in 8- to 9-year-old children and adults; the magnitude of such capture increased with age...
March 2017: Psychological Science
https://www.readbyqxmd.com/read/28077329/body-schema-plasticity-after-stroke-subjective-and-neurophysiological-correlates-of-the-rubber-hand-illusion
#20
Roberto Llorens, Adrián Borrego, Priscila Palomo, Ausiàs Cebolla, Enrique Noé, Sergi Bermúdez I Badia, Rosa Baños
Stroke can lead to motor impairments that can affect the body structure and restraint mobility. We hypothesize that brain lesions and their motor sequelae can distort the body schema, a sensorimotor map of body parts and elements in the peripersonal space through which human beings embody the reachable space and ready the body for forthcoming movements. Two main constructs have been identified in the embodiment mechanism: body-ownership, the sense that the body that one inhabits is his/her own, and agency, the sense that one can move and control his/her body...
February 2017: Neuropsychologia
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