Rubber Hand Illusions and Size–Weight Illusions: Self-Representation Modulates Representation of External Objects

Patrick Haggard; Shyma Jundi

doi:10.1068/p6399

journal article Jan 01, 2009

Rubber Hand Illusions and Size–Weight Illusions: Self-Representation Modulates Representation of External Objects

Patrick Haggard

Shyma Jundi

Perception Vol. 38 No. 12 pp. 1796-1803 · SAGE Publications

View at Publisher Save 10.1068/p6399

Abstract

Bodily illusions offer an experimental method to investigate the origins and functional role of the sense of one's own body. Using the rubber hand illusion (RHI) we show that a representation of one's own body is implicitly used to calibrate perception of external objects. Twelve participants experienced the RHI while watching stimulation of a large or small glove simultaneously with stimulation of their own hand. They then grasped cylinders of identical size but varying weight. RHI with the large glove caused the cylinders to feel heavier. We suggest that an illusory increase in hand size made the subsequently grasped cylinder feel correspondingly small, evoking a size–weight illusion. Self-representation thus influenced exteroception. The sense of one's own body provides a fundamental reference for perception in general.

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49

Citations

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References

Details

Published: Jan 01, 2009
Vol/Issue: 38(12)
Pages: 1796-1803
License: View

Authors

P

Patrick Haggard

Institute of Cognitive Neuroscience and Department of Psychology, University College London, 17 Queen Square, London WC1N 3AR, UK

S

Shyma Jundi

Department of Psychology, University College London, London, UK

Cite This Article

Patrick Haggard, Shyma Jundi (2009). Rubber Hand Illusions and Size–Weight Illusions: Self-Representation Modulates Representation of External Objects. Perception, 38(12), 1796-1803. https://doi.org/10.1068/p6399

Rubber Hand Illusions and Size–Weight Illusions: Self-Representation Modulates Representation of External Objects

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