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That's My Hand! Activity in Premotor Cortex Reflects Feeling of Ownership of a Limb
H. Henrik Ehrsson,1*Charles Spence,2Richard E. Passingham1,2
When we look at our hands, we immediately know that they arepart of our own body. This feeling of ownership of our limbsis a fundamental aspect of self-consciousness. We have studiedthe neuronal counterparts of this experience. A perceptual illusionwas used to manipulate feelings of ownership of a rubber handpresented in front of healthy subjects while brain activitywas measured by functional magnetic resonance imaging. The neuralactivity in the premotor cortex reflected the feeling of ownershipof the hand. This suggests that multisensory integration inthe premotor cortex provides a mechanism for bodily self-attribution.
1 Wellcome Department of Imaging Neuroscience, Institute of Neurology, 12 Queen Square, London WC1N 3BG, UK. 2 Department of Experimental Psychology, University of Oxford, South Parks Road, Oxford OX1 3UD, UK.
* To whom correspondence should be addressed. E-mail: h.ehrsson{at}fil.ion.ucl.ac.uk
Touching a Rubber Hand: Feeling of Body Ownership Is Associated with Activity in Multisensory Brain Areas.
H. H. Ehrsson, N. P. Holmes, and R. E. Passingham (2005)
J. Neurosci.
25, 10564-10573
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Cortical Ensemble Adaptation to Represent Velocity of an Artificial Actuator Controlled by a Brain-Machine Interface.
M. A. Lebedev, J. M. Carmena, J. E. O'Doherty, M. Zacksenhouse, C. S. Henriquez, J. C. Principe, and M. A. L. Nicolelis (2005)
J. Neurosci.
25, 4681-4693
|Abstract »|Full Text »|PDF »