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Tuning of temporo-occipital activity by frontal oscillations during virtual mirror exposure causes erroneous self-recognition.
Journal article

Tuning of temporo-occipital activity by frontal oscillations during virtual mirror exposure causes erroneous self-recognition.

  • Serino A Center for Neuroprosthetics, École Polytechnique Fédérale de Lausanne, Lausanne, Switzerland.
  • Sforza AL Laboratory of Cognitive Neuroscience, Brain Mind Institute, School of Life Sciences, École Polytechnique Fédérale de Lausanne, Station 19, SV 2805, Lausanne, 1015, Switzerland.
  • Kanayama N Center for Neuroprosthetics, École Polytechnique Fédérale de Lausanne, Lausanne, Switzerland.
  • van Elk M Center for Neuroprosthetics, École Polytechnique Fédérale de Lausanne, Lausanne, Switzerland.
  • Kaliuzhna M Center for Neuroprosthetics, École Polytechnique Fédérale de Lausanne, Lausanne, Switzerland.
  • Herbelin B Center for Neuroprosthetics, École Polytechnique Fédérale de Lausanne, Lausanne, Switzerland.
  • Blanke O Center for Neuroprosthetics, École Polytechnique Fédérale de Lausanne, Lausanne, Switzerland.
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  • 2015-07-29
Published in:
  • The European journal of neuroscience. - 2015
face
self
sensory-motor
Body Image
Brain Mapping
Brain Waves
Electroencephalography
Evoked Potentials
Face
Facial Expression
Facial Recognition
Female
Humans
Illusions
Motion Perception
Neuropsychological Tests
Occipital Lobe
Recognition, Psychology
Temporal Lobe
User-Computer Interface
Young Adult
English Self-face recognition, a hallmark of self-awareness, depends on 'off-line' stored information about one's face and 'on-line' multisensory-motor face-related cues. The brain mechanisms of how on-line sensory-motor processes affect off-line neural self-face representations are unknown. This study used 3D virtual reality to create a 'virtual mirror' in which participants saw an avatar's face moving synchronously with their own face movements. Electroencephalographic (EEG) analysis during virtual mirror exposure revealed mu oscillations in sensory-motor cortex signalling on-line congruency between the avatar's and participants' movements. After such exposure and compatible with a change in their off-line self-face representation, participants were more prone to recognize the avatar's face as their own, and this was also reflected in the activation of face-specific regions in the inferotemporal cortex. Further EEG analysis showed that the on-line sensory-motor effects during virtual mirror exposure caused these off-line visual effects, revealing the brain mechanisms that maintain a coherent self-representation, despite our continuously changing appearance.
Language
  • English
Open access status
closed
Identifiers
Persistent URL
https://sonar.ch/global/documents/1423
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