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The mirror illusion induces high gamma oscillations in the absence of movement

Butorina, A; Prokofyev, A; Nazarova, M; Litvak, V; Stroganova, T; (2014) The mirror illusion induces high gamma oscillations in the absence of movement. NeuroImage , 103 pp. 181-191. 10.1016/j.neuroimage.2014.09.024. Green open access

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Abstract

We tested whether mirror visual feedback (MVF) from a moving hand induced high gamma oscillation (HGO) response in the hemisphere contralateral to the mirror and ipsilateral to the self-paced movement. MEG was recorded in 14 subjects under three conditions: bilateral synchronous movements of both index fingers (BILATERAL), movements of the right hand index finger while observing the immobile left index finger (NOMIRROR), and movements of the right hand index finger while observing its mirror reflection (MIRROR). The right hemispheric spatiospectral regions of interests (ROIs) in the sensor space, sensitive to bilateral movements, were found by statistical comparison of the BILATERAL spectral responses to baseline. For these ROIs, the post-movement HGO responses were compared between the MIRROR and NOMIRROR conditions. We found that MVF from the moving hand, similarly to the real movements of the opposite hand, induced HGO (55–85 Hz) in the sensorimotor cortex. This MVF effect was frequency-specific and did not spread to oscillations in other frequency bands. This is the first study demonstrating movement-related HGO induced by MVF from the moving hand in the absence of proprioceptive feedback signaling. Our findings support the hypothesis that MVF can trigger the feedback-based control processes specifically associated with perception of one's own movements.

Type: Article
Title: The mirror illusion induces high gamma oscillations in the absence of movement
Open access status: An open access version is available from UCL Discovery
DOI: 10.1016/j.neuroimage.2014.09.024
Publisher version: http://dx.doi.org/10.1016/j.neuroimage.2014.09.024
Language: English
Additional information: © 2014. This manuscript version is made available under the CC-BY-NC-ND 4.0 license http://creativecommons.org/licenses/by-nc-nd/4.0/ Final text available at htttp: dx.doi.org/10.1016/j.neuroimage.2014.09.024
Keywords: MEG, hand movements, mirror visual feedback, sensorimotor cortex, high gamma somatotopy
UCL classification: UCL > Provost and Vice Provost Offices
UCL > Provost and Vice Provost Offices > School of Life and Medical Sciences
UCL > Provost and Vice Provost Offices > School of Life and Medical Sciences > Faculty of Brain Sciences
UCL > Provost and Vice Provost Offices > School of Life and Medical Sciences > Faculty of Brain Sciences > UCL Queen Square Institute of Neurology
UCL > Provost and Vice Provost Offices > School of Life and Medical Sciences > Faculty of Brain Sciences > UCL Queen Square Institute of Neurology > Imaging Neuroscience
URI: https://discovery.ucl.ac.uk/id/eprint/1448715
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