Relationships Between Personality Features and the Rubber Hand Illusion: An Exploratory Study

The rubber hand illusion paradigm allows investigating human body ownership by inducing an illusion of owning a life-sized fake hand. Despite the wide consensus on the fact that integration of multisensory signals is the main interpretative framework of the rubber hand illusion, increasing amount of...

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Bibliographic Details
Published in:Frontiers in psychology 2019-12, Vol.10, p.2762-2762
Main Authors: Burin, Dalila, Pignolo, Claudia, Ales, Francesca, Giromini, Luciano, Pyasik, Maria, Ghirardello, Davide, Zennaro, Alessandro, Angilletta, Miriana, Castellino, Laura, Pia, Lorenzo
Format: Article
Language:English
Subjects:
body ownership
Personality Assessment Inventory
personality traits
Psychology
Rorschach
rubber hand illusion
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Summary:The rubber hand illusion paradigm allows investigating human body ownership by inducing an illusion of owning a life-sized fake hand. Despite the wide consensus on the fact that integration of multisensory signals is the main interpretative framework of the rubber hand illusion, increasing amount of data show that additional factors might contribute to the emergence of the illusion and, in turn, explain the strong inter-individual differences of the illusory patterns. Here, we explored whether and how personality features contribute to the emergence of the illusion by administering to healthy participants the rubber hand illusion paradigm along with two well-known personality tests, i.e., the Personality Assessment Inventory (PAI) and the Rorschach test. Results showed that two Rorschach domains (i.e., "Perception and Thinking Problems" and "Self and Other Representation") were positively correlated with the illusory mislocalization of the own left hand toward the fake hand. Further analyses suggested that while the tendency to perceive unconventionally is related to mislocalizing the own hand toward the fake hand, the association of the RHI index and other personality features measured by the Rorschach remain uncertain. However, our findings in general suggest that personality features might have a role in the emergence of the rubber hand illusion. This, in turn, could explain the high inter-individual variability of the illusory effects.
ISSN:1664-1078
1664-1078
DOI:10.3389/fpsyg.2019.02762