Unconscious integration of multisensory bodily inputs in the peripersonal space shapes bodily self-consciousness.
Recent studies have highlighted the role of multisensory integration as a key mechanism of self-consciousness. In particular, integration of bodily signals within the peripersonal space (PPS) underlies the experience of the self in a body we own (self-identification) and that is experienced as occup...
| Publicado en: | Cognition Vol. 166; pp. 174 - 184 |
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| Autores principales: | , , , , , , |
| Formato: | research Journal Article |
| Publicado: |
Elsevier B.V.
Sep2017
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| Acceso en línea: | Ver este registro en EBSCOhost |
| fields | @attributes: recordID: 1 pdfLink: plink: https://search.ebscohost.com/login.aspx?direct=true&db=ccm&AN=123830629&site=ehost-live header: @attributes: shortDbName: ccm uiTerm: 123830629 longDbName: CINAHL Complete uiTag: AN controlInfo: bkinfo: dissinfo: jinfo: jid: 00100277 3H9 jtl: Cognition issn: 00100277 maglogo: N pubinfo: dt: Sep2017 vid: 166 pid: 1004 pub: Elsevier B.V. artinfo: ui: 123830629 123830629 NLM28577447 123830629 10.1016/j.cognition.2017.05.028 NLM28577447 123830629 ppf: 174 ppct: 10 formats: tig: atl: Unconscious integration of multisensory bodily inputs in the peripersonal space shapes bodily self-consciousness. aug: au: Salomon, Roy Noel, Jean-Paul Łukowska, Marta Faivre, Nathan Metzinger, Thomas Serino, Andrea Blanke, Olaf affil: Center for Neuroprosthetics, School of Life Sciences, Ecole Polytechnique Fédérale de Lausanne, Lausanne, Switzerland sug: subj: Consciousness Cognition Personal Boundaries Body Image Self Concept Physical Stimulation Touch Physiology Proprioception Physiology Visual Perception Physiology Female Human Male Validation Studies Comparative Studies Evaluation Research Multicenter Studies Female Male ab: Recent studies have highlighted the role of multisensory integration as a key mechanism of self-consciousness. In particular, integration of bodily signals within the peripersonal space (PPS) underlies the experience of the self in a body we own (self-identification) and that is experienced as occupying a specific location in space (self-location), two main components of bodily self-consciousness (BSC). Experiments investigating the effects of multisensory integration on BSC have typically employed supra-threshold sensory stimuli, neglecting the role of unconscious sensory signals in BSC, as tested in other consciousness research. Here, we used psychophysical techniques to test whether multisensory integration of bodily stimuli underlying BSC also occurs for multisensory inputs presented below the threshold of conscious perception. Our results indicate that visual stimuli rendered invisible through continuous flash suppression boost processing of tactile stimuli on the body (Exp. 1), and enhance the perception of near-threshold tactile stimuli (Exp. 2), only once they entered PPS. We then employed unconscious multisensory stimulation to manipulate BSC. Participants were presented with tactile stimulation on their body and with visual stimuli on a virtual body, seen at a distance, which were either visible or rendered invisible. We found that participants reported higher self-identification with the virtual body in the synchronous visuo-tactile stimulation (as compared to asynchronous stimulation; Exp. 3), and shifted their self-location toward the virtual body (Exp.4), even if stimuli were fully invisible. Our results indicate that multisensory inputs, even outside of awareness, are integrated and affect the phenomenological content of self-consciousness, grounding BSC firmly in the field of psychophysical consciousness studies. pubtype: Academic Journal doctype: research Journal Article ougenre: Article language: English refInfo: holdings: @attributes: islocal: N |
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