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Related Experiment Video

Updated: May 20, 2026

Creating Virtual-hand and Virtual-face Illusions to Investigate Self-representation

Creating Virtual-hand and Virtual-face Illusions to Investigate Self-representation

Published on: March 1, 2017

The rubber hand illusion modulates pseudoneglect.

Sebastian Ocklenburg¹, Jutta Peterburs, Naima Rüther

¹Abteilung Biopsychologie, Institut für Kognitive Neurowissenschaft, Fakultät für Psychologie, Ruhr-Universität Bochum, Universitätsstraße 150, D-44780 Bochum, Germany. sebastian.ocklenburg@rub.de

Neuroscience Letters

|July 10, 2012

Summary

This summary is machine-generated.

The rubber hand illusion (RHI) can reduce pseudoneglect, a leftward bias in spatial tasks. This effect was strongest in individuals who vividly experienced the illusion, particularly when applied to the left hand.

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Area of Science:

Neuroscience
Cognitive Psychology
Perception

Background:

The rubber hand illusion (RHI) is a phenomenon where individuals perceive ownership of an artificial hand.
Body image integration is hypothesized to influence spatial processing and body midline perception.
Pseudoneglect, a leftward bias in line bisection, is a common finding in neurologically healthy adults.

Purpose of the Study:

To investigate the effect of the RHI on pseudoneglect.
To explore whether the strength of the illusion influences its impact on pseudoneglect.
To determine if the side of application (left vs. right hand) affects the RHI's influence on pseudoneglect.

Main Methods:

The study involved 79 neurologically healthy adults performing a line bisection task.
The rubber hand illusion was induced through synchronous tactile and visual stimulation.
Participants were categorized as high or low responders based on the vividness of their illusion experience.

Main Results:

Pseudoneglect was significantly reduced following the application of the RHI.
The reduction in pseudoneglect was more pronounced in high responders compared to low responders.
Pseudoneglect was eliminated only when the RHI was applied to the left hand.

Conclusions:

The RHI can modulate spatial biases, specifically reducing pseudoneglect.
The subjective experience of the illusion is crucial for its effect on spatial processing.
Integrating a rubber hand into the body schema, particularly on the left side, shifts the subjective body midline rightward, counteracting leftward spatial biases consistent with hemispheric asymmetry.