Body ownership across schizotypy dimensions: A rubber hand illusion experiment
Bodily self disturbances are core features of schizophrenia. Body ownership, one component of the bodily self, can be assessed with the Rubber Hand Illusion (RHI), which is induced by a synchronous brushing of a visible fake hand and one's own occluded hand. Schizophrenia is associated with inc...
| Main Authors: | , |
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| Format: | Article |
| Language: | English |
| Published: |
Elsevier
2022-09-01
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| Series: | Psychiatry Research Communications |
| Subjects: | |
| Online Access: | http://www.sciencedirect.com/science/article/pii/S2772598722000393 |
| _version_ | 1818049575022231552 |
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| author | Lénie J. Torregrossa Sohee Park |
| author_facet | Lénie J. Torregrossa Sohee Park |
| author_sort | Lénie J. Torregrossa |
| collection | DOAJ |
| description | Bodily self disturbances are core features of schizophrenia. Body ownership, one component of the bodily self, can be assessed with the Rubber Hand Illusion (RHI), which is induced by a synchronous brushing of a visible fake hand and one's own occluded hand. Schizophrenia is associated with increased RHI strength and diminished body ownership. This study examined RHI in relation to schizotypy to extend our understanding of self-disturbances in the schizophrenia-spectrum.Ninety-seven college students completed the RHI task and self-report questionnaires. Regressions were used to assess the RHI strength in relation to the 3 schizotypy factors (positive, negative, disorganized). We also examined the correlations between self-reported bodily self disturbances and RHI strength.Positive schizotypy predicted a stronger subjective experience of the RHI, whereas negative schizotypy predicted weakened RHI susceptibility. Questionnaire measures of self-disturbances correlated with stronger RHI. In sum, we confirmed the link between positive schizotypy and the subjective experience of the RHI, which suggests a weakened sense of body ownership. Interestingly, we also found a relationship between negative schizotypy and reduced RHI, which implies strengthened body ownership. These results also underscore the complexity of the link between the phenomenological experience of bodily disturbances and the experimentally measured sense of body ownership. |
| first_indexed | 2024-12-10T10:39:45Z |
| format | Article |
| id | doaj.art-80f64239a330419eb7ae84a8f5847119 |
| institution | Directory Open Access Journal |
| issn | 2772-5987 |
| language | English |
| last_indexed | 2024-12-10T10:39:45Z |
| publishDate | 2022-09-01 |
| publisher | Elsevier |
| record_format | Article |
| series | Psychiatry Research Communications |
| spelling | doaj.art-80f64239a330419eb7ae84a8f58471192022-12-22T01:52:20ZengElsevierPsychiatry Research Communications2772-59872022-09-0123100058Body ownership across schizotypy dimensions: A rubber hand illusion experimentLénie J. Torregrossa0Sohee Park1Corresponding author. Vanderbilt University, 111 21st Ave. S, Wilson Hall, Room 311, Nashville, TN, 37240, USA.; Department of Psychology, Vanderbilt University, Nashville, TN, USADepartment of Psychology, Vanderbilt University, Nashville, TN, USABodily self disturbances are core features of schizophrenia. Body ownership, one component of the bodily self, can be assessed with the Rubber Hand Illusion (RHI), which is induced by a synchronous brushing of a visible fake hand and one's own occluded hand. Schizophrenia is associated with increased RHI strength and diminished body ownership. This study examined RHI in relation to schizotypy to extend our understanding of self-disturbances in the schizophrenia-spectrum.Ninety-seven college students completed the RHI task and self-report questionnaires. Regressions were used to assess the RHI strength in relation to the 3 schizotypy factors (positive, negative, disorganized). We also examined the correlations between self-reported bodily self disturbances and RHI strength.Positive schizotypy predicted a stronger subjective experience of the RHI, whereas negative schizotypy predicted weakened RHI susceptibility. Questionnaire measures of self-disturbances correlated with stronger RHI. In sum, we confirmed the link between positive schizotypy and the subjective experience of the RHI, which suggests a weakened sense of body ownership. Interestingly, we also found a relationship between negative schizotypy and reduced RHI, which implies strengthened body ownership. These results also underscore the complexity of the link between the phenomenological experience of bodily disturbances and the experimentally measured sense of body ownership.http://www.sciencedirect.com/science/article/pii/S2772598722000393SchizotypyBody ownershipRHIBodily selfEmbodiment |
| spellingShingle | Lénie J. Torregrossa Sohee Park Body ownership across schizotypy dimensions: A rubber hand illusion experiment Psychiatry Research Communications Schizotypy Body ownership RHI Bodily self Embodiment |
| title | Body ownership across schizotypy dimensions: A rubber hand illusion experiment |
| title_full | Body ownership across schizotypy dimensions: A rubber hand illusion experiment |
| title_fullStr | Body ownership across schizotypy dimensions: A rubber hand illusion experiment |
| title_full_unstemmed | Body ownership across schizotypy dimensions: A rubber hand illusion experiment |
| title_short | Body ownership across schizotypy dimensions: A rubber hand illusion experiment |
| title_sort | body ownership across schizotypy dimensions a rubber hand illusion experiment |
| topic | Schizotypy Body ownership RHI Bodily self Embodiment |
| url | http://www.sciencedirect.com/science/article/pii/S2772598722000393 |
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