The rubber hand illusion in action

Kammers, Marjolein P.M.; Vignemont, Frédérique de; Verhagen, Lennart; Dijkerman, H. Chris

doi:10.1016/j.neuropsychologia.2008.07.028

Cited by 340 publications

(330 citation statements)

References 29 publications

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“…Such deficits provide a double dissociation between body representations underlying perception and action, and also suggest a specific cognitive function of organising individual body parts into a coherent whole. This distinction has also been found in healthy individuals: bodily illusions have different effects on perceptual and motor tasks (Kammers et al 2006;2009a). Here, however, we focus on two other distinctive features of body representations that have received much less attention.…”

Section: Introductionmentioning

confidence: 76%

Specificity and Coherence of Body Representations

et al. 2009

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Bodily illusions differently affect body representations underlying perception and action. We investigated whether this task-dependency is mediated by two dimensions of embodiment: the sense of agency and the sense of the body as a coherent whole. In Experiment 1 a video Rubber Hand Illusion (vRHI) was induced with either active or passive movement and proprioceptive biases were measured via active responses or perceptual judgments. The Rresults showed that firstly that the vRHI is largely perceptual because it affected passive perceptual localisation judgments, but did not affect the active pointing responses but only the passive perceptual localisation judgments. Secondly, within the perceptual responses there was revealed a congruence effect, such that perceptual biases were larger following passive induction. There was only a trend for thisthe converse effect for the pointing responses, whereas motor biases were larger following active induction. In Experiment 2, we used the traditional RHI to investigate the coherence of body representation by synchronous stimulation of either matching or mismatching fingers on the rubber hand and the participant's own hand. Stimulation of matching fingers induced a local proprioceptive bias for only the stimulated finger, but did not affect the perceived shape of the hand as a whole. In contrast, spatial mismatch eliminated the RHI entirely. The present results show: (1) that the sense of agency has specific effects, depending on whether we represent our body for perception or to guide action, and (2) representations of specific body parts can be altered without affecting perception of the spatial configuration of the body as a whole.

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Section: Introductionmentioning

confidence: 76%

Specificity and Coherence of Body Representations

et al. 2009

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“…These questions were adapted from earlier studies examining a standard rubber arm illusion [3,14,17] and were administered to capture the key perceptual components of the virtual arm protocol.…”

Section: Manipulation Checkmentioning

confidence: 99%

Initial validation of a virtual blood draw exposure paradigm for fear of blood and needles

Trost

Jones

Guck

et al. 2017

Journal of Anxiety Disorders

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Fear of blood, injections, and needles commonly prevents or delays individuals' receipt of health care, such as vaccines or blood draws. Innovative methods are needed to overcome these fears and reduce anxiety related to activities of this nature. The present study describes initial testing of an arm illusion paradigm that may prove useful during early phases of graded exposure for people with blood and needle fear. Seventy-four undergraduate students aged 18-29 years were tested. In line with study aims, results indicated that the virtual blood draw paradigm promoted strong perceptions of arm ownership and elicited significant changes in physiological indices (blood pressure, heart rate, electrodermal activity, respiratory rate) in response to key procedure elements (e.g., needle insertion). Further, bivariate correlations indicated that individual differences in self-reported blood and needle fear collected prior to the illusion paradigm were significantly associated with presyncopal symptoms reported following the procedure. In regression analyses, self-reported measures of blood and needle fear explained unique variance in presyncopal symptoms even after controlling for general state anxiety. These findings provide initial support for the virtual blood draw paradigm as a promising tool to help provide graded exposure to medical procedures involving needles and blood draw.

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“…In the past, several studies showed that visual information can be used to recalibrate motor responses controlled by kinesthetic afferents. The most famous studies in that direction are prism adaptation paradigms (Hay and Pick 1966;Redding et al 2005;Welch et al 1979) and the rubber hand illusion (Botvinick and Cohen 1998;Kammers et al 2009). Concerning specifically arm motor responses controlled by vestibular afferents, we are only aware of one study showing such a visual recalibration.…”

Section: Discussionmentioning

confidence: 99%

It is all me: the effect of viewpoint on visual–vestibular recalibration

et al. 2011

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Participants performed a visual-vestibular motor recalibration task in virtual reality. The task consisted of keeping the extended arm and hand stable in space during a whole-body rotation induced by a robotic wheelchair. Performance was first quantified in a pre-test in which no visual feedback was available during the rotation. During the subsequent adaptation phase, optical flow resulting from body rotation was provided. This visual feedback was manipulated to create the illusion of a smaller rotational movement than actually occurred, hereby altering the visual-vestibular mapping. The effects of the adaptation phase on hand stabilization performance were measured during a post-test that was identical to the pre-test. Three different groups of subjects were exposed to different perspectives on the visual scene, i.e., first-person, top view, or mirror view. Sensorimotor adaptation occurred for all three viewpoint conditions, performance in the posttest session showing a marked under-compensation relative to the pre-test performance. In other words, all viewpoints gave rise to a remapping between vestibular input and the motor output required to stabilize the arm. Furthermore, the first-person and mirror view adaptation induced a significant decrease in variability of the stabilization performance. Such variability reduction was not observed for the top view adaptation. These results suggest that even if all three viewpoints can evoke substantial adaptation aftereffects, the more naturalistic first-person view and the richer mirror view should be preferred when reducing motor variability constitutes an important issue.

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The rubber hand illusion in action

Cited by 340 publications

References 29 publications

Specificity and Coherence of Body Representations

Specificity and Coherence of Body Representations

Initial validation of a virtual blood draw exposure paradigm for fear of blood and needles

It is all me: the effect of viewpoint on visual–vestibular recalibration

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