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Modulation of vection latencies in the full-body illusion
- Source :
- PLoS ONE, Vol 13, Iss 12, p e0209189 (2018), PLoS ONE, PLoS One
- Publication Year :
- 2018
- Publisher :
- Public Library of Science (PLoS), 2018.
-
Abstract
- Current neuroscientific models of bodily self-consciousness (BSC) argue that inaccurate integration of sensory signals leads to altered states of BSC. Indeed, using virtual reality technology, observers viewing a fake or virtual body while being exposed to tactile stimulation of the real body, can experience illusory ownership over–and mislocalization towards—the virtual body (Full-Body Illusion, FBI). Among the sensory inputs contributing to BSC, the vestibular system is believed to play a central role due to its importance in estimating self-motion and orientation. This theory is supported by clinical evidence that vestibular loss patients are more prone to altered BSC states, and by recent experimental evidence that visuo-vestibular conflicts can disrupt BSC in healthy individuals. Nevertheless, the contribution of vestibular information and self-motion perception to BSC remains largely unexplored. Here, we investigate the relationship between alterations of BSC and self-motion sensitivity in healthy individuals. Fifteen participants were exposed to visuo-vibrotactile conflicts designed to induce an FBI, and subsequently to visual rotations that evoked illusory self-motion (vection). We found that synchronous visuo-vibrotactile stimulation successfully induced the FBI, and further observed a relationship between the strength of the FBI and the time necessary for complete vection to arise. Specifically, higher self-reported FBI scores across synchronous and asynchronous conditions were associated to shorter vection latencies. Our findings are in agreement with clinical observations that vestibular loss patients have higher FBI susceptibility and lower vection latencies, and argue for increased visual over vestibular dependency during altered states of BSC.
- Subjects :
- Male
Questionnaires
Vision
Physiology
Economics
Sensory Physiology
Motion Perception
Social Sciences
Audiology
tilt
perceptions
self
0302 clinical medicine
Medicine and Health Sciences
Psychology
Tactile Sensation
media_common
Vestibular system
mechanisms
Multidisciplinary
Sensory stimulation therapy
Physics
05 social sciences
Virtual Reality
Classical Mechanics
Illusions
Sensory Systems
feel
Touch Perception
Vestibular Diseases
Somatosensory System
Research Design
Vestibule
Physical Sciences
Visual Perception
Medicine
Female
Sensory Perception
Vestibule, Labyrinth
damage
Research Article
Adult
Employment
medicine.medical_specialty
Science
brain
media_common.quotation_subject
Illusion
ownership
Sensory system
Research and Analysis Methods
Vibration
050105 experimental psychology
Young Adult
Motion
03 medical and health sciences
Sensory Cues
Physical Stimulation
Perception
medicine
Humans
0501 psychology and cognitive sciences
Motion perception
Sensory cue
Survey Research
Biology and Life Sciences
sensitivity
Self Concept
Labor Economics
experiences
030217 neurology & neurosurgery
Neuroscience
Subjects
Details
- ISSN :
- 19326203
- Volume :
- 13
- Database :
- OpenAIRE
- Journal :
- PLOS ONE
- Accession number :
- edsair.doi.dedup.....146483dc4c583ddb4f50383041a97f51