Do Vestibular Signals Influence Illusory Self-Attribution of a Rubber Hand?
Christophe Lopez, Laboratory of Cognitive Neuroscience Bigna Lenggenhager, Brain Mind Institute, EPFL, Switzerland Olaf Blanke, Brain Mind Institute, EPFL, Switzerland christophe.lopez@epfl.ch Sunday, June 7th, 17:30–19:30: Poster No. 66 The vestibular contribution to bodily self-consciousness is suggested by neurological observations. Artificial stimulations of the peripheral vestibular system may modify the experience of phantom limb sensations in amputees and may also alter self-attribution of body parts in neurological patients suffering from somatoparaphrenia. In the present study, we investigated whether galvanic vestibular stimulation (GVS) – that evoke an illusory sensation of self- and/or environment motion – interferes with the mechanisms underlying body part localization and self-attribution in healthy participants using the so-called rubber hand illusion. The (unseen) left hand of the subject was stroked synchronously or asynchronously with a (seen) left rubber hand for 1 m