Evidence map›Paper›PMID 34288558›Full record

SynthesisBrain and behavior2021

Neural mechanisms underlying the Rubber Hand Illusion: A systematic review of related neurophysiological studies.

Stefan Golaszewski, Vanessa Frey, Aljoscha Thomschewski, Luca Sebastianelli, Viviana Versace, Leopold Saltuari, Eugen Trinka, Raffaele Nardone

Open access · goldAbstract readSystematic Review
In one paragraph

Synthesis in Brain and behavior, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 13 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
13citing papers in PubMed, 1 pooled it
4.4field-weighted citation impact, top 6% of its field
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

13 citing papers in PubMed, 1 synthesis or guideline pooled it, 26 citations in OpenAlex.

  1. Pooled it
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  3. Review
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  6. Review
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  12. Bodily Illusions and Motor Imagery in Fibromyalgia.Frontiers in human neuroscience · 2021
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4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

8 authors at 3 institutions in 3 countries.

Stefan GolaszewskiDepartment of Neurology, Christian Doppler Klinik, Paracelsus Medical University, Salzburg, Austria.ORCID 0000-0002-2055-0072
Vanessa FreyDepartment of Neurology, Christian Doppler Klinik, Paracelsus Medical University, Salzburg, Austria.
Aljoscha ThomschewskiDepartment of Neurology, Christian Doppler Klinik, Paracelsus Medical University, Salzburg, Austria.
Luca SebastianelliDepartment of Neurorehabilitation, Hospital of Vipiteno (SABES-ASDAA), Vipiteno-Sterzing, Italy.
Viviana VersaceDepartment of Neurorehabilitation, Hospital of Vipiteno (SABES-ASDAA), Vipiteno-Sterzing, Italy.
Leopold SaltuariDepartment of Neurorehabilitation, Hospital of Vipiteno (SABES-ASDAA), Vipiteno-Sterzing, Italy.
Eugen TrinkaDepartment of Neurology, Christian Doppler Klinik, Paracelsus Medical University, Salzburg, Austria.
Raffaele NardoneDepartment of Neurology, Christian Doppler Klinik, Paracelsus Medical University, Salzburg, Austria.ORCID 0000-0001-5243-6760
Paracelsus Medical University · ATTechno Innovation South Tyrol (Italy) · ITUniversity of Salzburg · AT

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

introductionMany researchers took advantage of the well-established rubber hand illusion (RHI) paradigm to explore the link between the sense of body ownership and the different brain structures and networks. Here, we aimed to review the studies that have investigated this phenomenon by means of neurophysiological techniques.

methodsThe MEDLINE, accessed by Pubmed and EMBASE electronic databases, was searched using the medical subject headings: "Rubber hand illusion" AND "Transcranial magnetic stimulation (TMS)" OR "Evoked potentials (EP)" OR "Event related potentials (ERP)" OR "Electroencephalography (EEG)".

resultsTranscranial magnetic stimulation studies revealed a significant excitability drop in primary motor cortex hand circuits accompanying the disembodiment of the real hand during the RHI experience and that the perceived ownership over the rubber hand is associated with normal parietal-motor communication. Moreover, TMS provided causal evidence that the extrastriate body area is involved in the RHI and subsequently in body representation, while neuromodulation of ventral premotor area and the inferior parietal lobe did not result in an enhancement of embodiment. EP and ERP studies suggest that pre-existing body representations may affect larger stages of tactile processing and support predictive coding models of the functional architecture of multisensory integration in bodily perceptual experience. High-frequency oscillations on EEG play a role in the integrative processing of stimuli across modalities, and EEG activity in γ band activity in the parietal area reflects the visuotactile integration process. EEG studies also revealed that RHI is associated with the neural circuits underlying motor control and that premotor areas play a crucial role in mediating illusory body ownership.

conclusionNeurophysiological studies shed new light on our understanding of the different aspects that contribute to the formation of a coherent self-awareness in humans.

Indexed as

IllusionsTouch PerceptionBody ImageHandHumansParietal LobeProprioceptionVisual Perceptionelectroencephalographyevent-related potentialsevoked potentialsrubber hand illusiontranscranial magnetic stimulation

Identifiers

PMID34288558
PMCPMC8413782
OpenAlexW3183920457

What OpenQuestion holds

Textmetadata
LicenceCC BY
Read underepoch 390

Registered trials

None linked

Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.