Turning body and self inside out: visualized heartbeats alter bodily self-consciousness and tactile perception

Aspell, Jane E. and Heydrich, Lukas and Marillier, Guillaume and Lavanchy, Tom and Herbelin, Bruno and Blanke, Olaf (2013) Turning body and self inside out: visualized heartbeats alter bodily self-consciousness and tactile perception. Psychological Science, 24 (12). pp. 2445-2453. ISSN 1467-9280

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Official URL: https://doi.org/10.1177/0956797613498395

Abstract

Prominent theories highlight the importance of bodily perception for self-consciousness, but it is currently not known whether bodily perception is based on interoceptive or exteroceptive signals or on integrated signals from these anatomically distinct systems. In the research reported here, we combined both types of signals by surreptitiously providing participants with visual exteroceptive information about their heartbeat: A real-time video image of a periodically illuminated silhouette outlined participants' (projected, "virtual") bodies and flashed in synchrony with their heartbeats. We investigated whether these "cardio-visual" signals could modulate bodily self-consciousness and tactile perception. We report two main findings. First, synchronous cardio-visual signals increased self-identification with and self-location toward the virtual body, and second, they altered the perception of tactile stimuli applied to participants' backs so that touch was mislocalized toward the virtual body. We argue that the integration of signals from the inside and the outside of the human body is a fundamental neurobiological process underlying self-consciousness.

Item Type: Journal Article
Keywords: cognitive neuroscience, consciousness, human body, virtual reality, vision
Faculty: ARCHIVED Faculty of Science & Technology (until September 2018)
Depositing User: Repository Admin
Date Deposited: 20 May 2014 10:43
Last Modified: 22 Apr 2021 15:54
URI: https://arro.anglia.ac.uk/id/eprint/317207

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