Predisposition to Out-of-Body Experience (OBE) is associated with aberrations in multisensory integration:psychophysiological support from a “rubber-hand illusion” study

Braithwaite, Jason J and Watson, Derrick and Dewe, Hayley (2017) Predisposition to Out-of-Body Experience (OBE) is associated with aberrations in multisensory integration:psychophysiological support from a “rubber-hand illusion” study. Journal of Experimental Psychology: Human Perception and Performance, 43 (6). pp. 1125-1143. ISSN 0096-1523

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Abstract

It has been argued that disorders in body-ownership and aberrant experiences in self-consciousness are due to biases in multisensory integration. Here we examine whether such biases are also associated with spontaneous Out-of-Body Experiences (OBEs) in a non-clinical population. One-hundred and eighty participants took part in a rubber-hand illusion (RHI) experiment with synchronous and asynchronous visual and tactile stimulation. A realistic threat was delivered to the rubber-hand after a fixed period of stimulation. Self-report exit questionnaires measured the subjective strength of the illusion and psychophysiological measures (skin conductance responses / finger temperature) provided an objective index of fear / anxiety towards the threat. Control participants reported a stronger RHI, and revealed larger threat-related skin conductance responses during synchronous compared with asynchronous brushing. For participants predisposed to OBEs, the magnitude of the skin conductance was not influenced by brushing synchrony - fear responses were just as strong in the asynchronous condition as they were in the synchronous condition. There were also no reliable effects of finger-temperature for either group. Collectively, these findings are taken as support for the presence of particular biases in multisensory integration (perhaps via predictive coding mechanisms) in which imprecise top-down tuning occurs resulting in aberrant experiences in self-consciousness even in non-clinical hallucinators.

Item Type:
Journal Article
Journal or Publication Title:
Journal of Experimental Psychology: Human Perception and Performance
Additional Information:
This article may not exactly replicate the authoritative document published in the APA journal. It is not the copy of record.
Uncontrolled Keywords:
/dk/atira/pure/subjectarea/aacsb/disciplinebasedresearch
Subjects:
ID Code:
84392
Deposited By:
Deposited On:
27 Jan 2017 09:26
Refereed?:
Yes
Published?:
Published
Last Modified:
23 Sep 2020 03:19