Temperament and psychopathological syndromes specific susceptibility for rubber hand illusion

Kállai, János; Gábor, Hegedűs; Feldmann, Ádám; Rózsa, Sándor; Darnai, Gergely; Herold, Róbert; Dorn, Krisztina; Kincses, Péter; Csathó, Árpád; Szolcsányi, Tibor

doi:10.1016/j.psychres.2015.05.109

Cited by 26 publications

(24 citation statements)

References 48 publications

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“…Indeed, in line with these hypotheses, the findings related to the "Perception and Thinking Problems" domain, allows us to hypothesize that a sort of proclivity to put together ideas and visual images in a more idiosyncratic way might be added to the tendency to perceive the world less accurately increasing the mislocalization of the own hand toward the fake hand. It is worth noting that the association between these psychosisrelated processes in the Rorschach and the RHI is consistent with previous research that linked psychosis-proneness to RHI susceptibility (Asai et al, 2011;Thakkar et al, 2011;Germine et al, 2013;Kallai et al, 2015). Taken together, these data suggest that weaker body ownership, as indexed by the RHI, could be rooted in psychosis probe traits.…”

Section: Discussionsupporting

confidence: 88%

“…Firstly, there is an extreme inter-individual variability in terms of RHI susceptibility within human population (Haans et al, 2012), with people reporting the illusion by simply seeing the fake hand (Rohde et al, 2011), others claiming its changing appearance (Lewis and Lloyd, 2010), others only having an impression of strangeness, and others experiencing no illusory experience at all (Wold et al, 2014). Secondly, the illusion strength is modulated by a variety of different additional factors other than the ones mentioned above: attentional fluctuations (Haans et al, 2012), interoceptive sensitivity (Tsakiris et al, 2011), temporal resolution in multisensory perception (Costantini et al, 2016), degree of empathic concern (Durgin et al, 2007;Asai et al, 2011), psychosis proneness (Asai et al, 2011;Thakkar et al, 2011;Germine et al, 2013;Kallai et al, 2015), malleability of body image (Eshkevari et al, 2012), emotional intelligence (Perepelkina et al, 2017) and hypnotic (Walsh et al, 2015)/sensory (Marotta et al, 2016) suggestibility.…”

Section: Introductionmentioning

confidence: 99%

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

et al. 2019

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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 wellknown 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.

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Section: Discussionsupporting

confidence: 88%

Section: Introductionmentioning

confidence: 99%

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

et al. 2019

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“…Certain personality traits reportedly account for individual variability at the RHI [18–20], including paranoid ideation, psychoticism predisposition, and interpersonal sensitivity [18–20], which are not directly related to sensory perception, although the RHI is related to specific types of sensory stimulation (i.e., visual, tactile, and proprioceptive). The current study sheds new light on the factors influencing individual susceptibility to the RHI.…”

Section: Discussionmentioning

confidence: 99%

“…Previous studies have revealed large variability on both measures of the RHI across individuals, which is likely rooted in specific dispositional traits [16–20]. However, despite the sensory nature of the RHI (i.e., visual, tactile, and proprioceptive), to our knowledge, no studies have investigated whether this variability could arise from an individual’s sensory suggestibility.…”

Section: Introductionmentioning

confidence: 93%

Individual Differences in the Rubber Hand Illusion Are Related to Sensory Suggestibility

et al. 2016

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In the rubber hand illusion (RHI), watching a rubber hand being stroked in synchrony with one’s own hidden hand may induce a sense of ownership over the rubber hand. The illusion relies on bottom-up multisensory integration of visual, tactile, and proprioceptive information, and on top-down processes through which the rubber hand is incorporated into pre-existing representations of the body. Although the degree of illusory experience varies largely across individuals, the factors influencing individual differences are unknown. We investigated whether sensory suggestibility might modulate susceptibility to the RHI. Sensory suggestibility is a personality trait related to how individuals react to sensory information. Because of its sensory nature, this trait could be relevant for studies using the RHI paradigm. Seventy healthy volunteers were classified by Sensory Suggestibility Scale (SSS) scores as having high or low suggestibility and assigned to either a high- (High-SSS) or a low-suggestibility (Low-SSS) group. Two components of the RHI were evaluated in synchronous and asynchronous stroking conditions: subjective experience of sense of ownership over the rubber hand via a 9-statement questionnaire, and proprioceptive drift as measured with a ruler. The High-SSS group was generally more susceptible to the subjective component; in the synchronous condition, they rated the statement assessing the sense of ownership higher than the Low-SSS group. The scores for this statement significantly correlated with the total SSS score, indicating that the higher the sensory suggestibility, the stronger the sense of ownership. No effect of sensory suggestibility on proprioceptive drift was observed, suggesting that the effect is specific for the subjective feeling of ownership. This study demonstrates that sensory suggestibility may contribute to participants’ experience of the illusion and should be considered when using the RHI paradigm.

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“…Interestingly, multisensory perceptual experiences predicted by the individual TBW 11 seem to be abnormal also in sub-clinical populations with high levels of schizotypy. 12,13 This suggests that lower temporal resolution in multisensory perception might be a behavioral marker of psychosis proneness. However, no study has investigated the TBW in schizotypy so far.…”

Section: Introductionmentioning

confidence: 99%

A Neural “Tuning Curve” for Multisensory Experience and Cognitive-Perceptual Schizotypy

Ferri

Nikolova

Perrucci

et al. 2017

Schizophrenia Bulletin

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Our coherent perception of external events is enabled by the integration of inputs from different senses occurring within a range of temporal offsets known as the temporal binding window (TBW), which varies from person to person. A relatively wide TBW may increase the likelihood that stimuli originating from different environmental events are erroneously integrated and abnormally large TBW has been found in psychiatric disorders characterized by unusual perceptual experiences. Despite strong evidence of inter-individual differences in TBW, both within clinical and nonclinical populations, the neurobiological underpinnings of this variability remain unclear. We adopted an integrated strategy linking TBW to temporal dynamics in functional magnetic resonance imaging (fMRI)-resting-state activity and cortical excitation/inhibition (E/I) balance. E/I balance was indexed by glutamate/Gamma-AminoButyric Acid (GABA) concentrations and common variation in glutamate and GABA genes in a healthy sample. Stronger resting-state longrange temporal correlations, indicated by larger power law exponent (PLE), in the auditory cortex, robustly predicted narrower audio-tactile TBW, which was in turn associated with lower cognitive-perceptual schizotypy. Furthermore, PLE was highest and TBW narrowest for individuals with intermediate levels of E/I balance, with shifts towards either extreme resulting in reduced multisensory temporal precision and increased schizotypy, effectively forming a neural "tuning curve" for multisensory experience and schizophrenia risk. Our findings shed light on the neurobiological underpinnings of multisensory integration and its potentially clinically relevant inter-individual variability.

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Temperament and psychopathological syndromes specific susceptibility for rubber hand illusion

Cited by 26 publications

References 48 publications

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

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

Individual Differences in the Rubber Hand Illusion Are Related to Sensory Suggestibility

A Neural “Tuning Curve” for Multisensory Experience and Cognitive-Perceptual Schizotypy

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