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Being Short, Sweet, and Sour: Congruent Visuo-Olfactory Stimulation Enhances Illusory Embodiment


Roel Lesur, Marte; Aicher, Helena; Delplanque, Sylvain; Lenggenhager, Bigna (2020). Being Short, Sweet, and Sour: Congruent Visuo-Olfactory Stimulation Enhances Illusory Embodiment. Perception, 49(6):693-696.

Abstract

Bodily self-identification has shown to be easily altered through spatiotemporally congruent multimodal signals. While such manipulations are mostly studied through visuo-tactile or visuo-motor stimulation, here we investigated whether congruent visuo-olfactory cues might enhance illusory self-identification with an arbitrary object. Using virtual reality, healthy individuals saw a grapefruit from its supposed first-person perspective that was touched in synchrony with their own body. The touch attempted to replicate what was seen as softly squeezing the grapefruit. Crucially, when we additionally presented the smell of a grapefruit in synchrony with the squeezing, they self-identified stronger with the fruit than when they smelled strawberry.

Abstract

Bodily self-identification has shown to be easily altered through spatiotemporally congruent multimodal signals. While such manipulations are mostly studied through visuo-tactile or visuo-motor stimulation, here we investigated whether congruent visuo-olfactory cues might enhance illusory self-identification with an arbitrary object. Using virtual reality, healthy individuals saw a grapefruit from its supposed first-person perspective that was touched in synchrony with their own body. The touch attempted to replicate what was seen as softly squeezing the grapefruit. Crucially, when we additionally presented the smell of a grapefruit in synchrony with the squeezing, they self-identified stronger with the fruit than when they smelled strawberry.

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Additional indexing

Item Type:Journal Article, refereed, original work
Communities & Collections:06 Faculty of Arts > Institute of Psychology
Dewey Decimal Classification:150 Psychology
Scopus Subject Areas:Social Sciences & Humanities > Experimental and Cognitive Psychology
Health Sciences > Ophthalmology
Life Sciences > Sensory Systems
Physical Sciences > Artificial Intelligence
Uncontrolled Keywords:Experimental and Cognitive Psychology, Sensory Systems, Artificial Intelligence, General Medicine
Language:English
Date:1 June 2020
Deposited On:12 Jan 2021 13:31
Last Modified:13 Jan 2021 21:00
Publisher:Sage Publications
ISSN:0301-0066
OA Status:Green
Publisher DOI:https://doi.org/10.1177/0301006620928669
Project Information:
  • : FunderSNSF
  • : Grant IDPP00P1_170511
  • : Project TitlePlasticity of the bodily self in a life span approach

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