Individual differences in the rubber-hand illusion : predicting self-reports of people's personal experiences

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Abstract

Can we assess individual differences in the extent to which a person perceives the rubber-hand illusion on the basis of self-reported experiences? In this research, we develop such an instrument using Rasch-type models. In our conception, incorporating an object (e.g., a rubber hand) into one's body image requires various sensorimotor and cognitive processes. The extent to which people can meet these requirements thus determines how intensely people experience and, simultaneously, describe the illusion. As a consequence, individual differences in people's susceptibility to the rubber-hand illusion can be determined by inspecting reports of their personal experiences. The proposed model turned out to be functional in its capability to predict self-reports of people's experiences and to reliably assess individual differences in susceptibility to the illusion. Regarding validity, we found a small, but significant, correlation between individual susceptibility and proprioceptive drift. Additionally, we found that asynchrony, and tapping rather than stroking the fingers constrain the experience of the illusion.
Original languageEnglish
Pages (from-to)169-177
Number of pages9
JournalActa psychologica
Volume141
Issue number2
DOIs
Publication statusPublished - 2012

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Rubber
Individuality
Self Report
Hand
Body Image
Fingers
Personal Experience
Individual Differences
Self-report
Susceptibility
Rubber Hand Illusion
Illusion
Research

Cite this

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title = "Individual differences in the rubber-hand illusion : predicting self-reports of people's personal experiences",
abstract = "Can we assess individual differences in the extent to which a person perceives the rubber-hand illusion on the basis of self-reported experiences? In this research, we develop such an instrument using Rasch-type models. In our conception, incorporating an object (e.g., a rubber hand) into one's body image requires various sensorimotor and cognitive processes. The extent to which people can meet these requirements thus determines how intensely people experience and, simultaneously, describe the illusion. As a consequence, individual differences in people's susceptibility to the rubber-hand illusion can be determined by inspecting reports of their personal experiences. The proposed model turned out to be functional in its capability to predict self-reports of people's experiences and to reliably assess individual differences in susceptibility to the illusion. Regarding validity, we found a small, but significant, correlation between individual susceptibility and proprioceptive drift. Additionally, we found that asynchrony, and tapping rather than stroking the fingers constrain the experience of the illusion.",
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Individual differences in the rubber-hand illusion : predicting self-reports of people's personal experiences. / Haans, A.; Kaiser, F.G.; Bouwhuis, D.G.; IJsselsteijn, W.A.

In: Acta psychologica, Vol. 141, No. 2, 2012, p. 169-177.

Research output: Contribution to journalArticleAcademicpeer-review

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