Temporo-parietal cortex encodes location of the self: joining fMRI with neuroscience robotics to study bodily self-consciousness

Details

Serval ID
serval:BIB_5C6CA7183FF1
Type
Inproceedings: an article in a conference proceedings.
Publication sub-type
Abstract (Abstract): shot summary in a article that contain essentials elements presented during a scientific conference, lecture or from a poster.
Collection
Publications
Institution
Title
Temporo-parietal cortex encodes location of the self: joining fMRI with neuroscience robotics to study bodily self-consciousness
Title of the conference
33rd European Conference on Visual Perception
Author(s)
Ionta S., Lenggenhager B., Mouthon M., Fornari E., Chapuis D., Gassert R., Blanke O.
Address
Lausanne, Switzerland, August 22-26, 2010
ISBN
0301-0066
Publication state
Published
Issued date
2010
Peer-reviewed
Oui
Volume
39
Series
Perception
Pages
135-136
Language
english
Notes
Publication type : Meeting Abstract
Abstract
Neuroimaging of the self has focused on high-level mechanisms such as language, memory or imagery of the self and implicated widely distributed brain networks. Yet recent evidence suggests that low-level mechanisms such as multisensory and sensorimotor integration may play a fundamental role in self-related processing. In the present study we used visuotactile multisensory conflict, robotics, virtual reality, and fMRI to study such low-level mechanisms by experimentally inducing changes in self-location. Participants saw a video of a person's back (body) or an empty room (no-body) being stroked while a MR-compatible robotic device stroked their back. The latter tactile input was synchronous or asynchronous with respect to the seen stroking. Self-location was estimated behaviorally confirming previous data that self-location only differed between the two body conditions. fMRI results showed a bilateral activation of the temporo-parietal cortex with a significantly higher BOLD signal increase in the synchronous/body condition with respect to the other conditions. Sensorimotor cortex and extrastriate-body-area were also activated. We argue that temporo-parietal activity reflects the experience of the conscious 'I' as embodied and localized within bodily space, compatible with clinical data in neurological patients with out-of-body experiences.
Keywords
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Web of science
Create date
30/05/2011 10:34
Last modification date
20/08/2019 14:14
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