Eye-tracking with MEG

Abstract

Event Abstract Back to Event Eye-tracking with MEG Markus Bauer1*, Gareth Barnes1, Christian Kluge2 and Jon Driver3 1 University College London, United Kingdom 2 Otto-von-Guericke University, Department of Neurology, Germany 3 University College London, Wellcome Trust Centre for Neuroimaging, Institute of Neurology, United Kingdom We compared optical and electrophysiological measures for estimating eye-position and saccade-direction and -extent from simultaneous measurement of magnetoencephalography (MEG), bipolar electrooculogram (EOG) and optical (infrared) eye-tracking. A standard saccade-/gaze-calibration task was used to evaluate the absolute and comparative precision of each measure. In the constrained MEG environment, EOG and especially MEG itself were usually superior for estimating horizontal saccade-extent compared to the optical eyetracker. For vertical saccades EOG was worst while MEG often performed comparably to the optical eyetracker. For static gaze position (rather than deviations from this), the optical eyetracker proved essential due to drift in all other signals. In conclusion, saccade-direction and saccade-extent can reliably be measured from MEG and/or EOG datasets without an optical eyetracker, provided a standard gaze-calibration procedure is implemented. Conference: Biomag 2010 - 17th International Conference on Biomagnetism , Dubrovnik, Croatia, 28 Mar - 1 Apr, 2010. Presentation Type: Poster Presentation Topic: Instrumentation and Multi-modal Integrations: MEG, Low-field MRI,EEG, fMRI,TMS,NIRS Citation: Bauer M, Barnes G, Kluge C and Driver J (2010). Eye-tracking with MEG. Front. Neurosci. Conference Abstract: Biomag 2010 - 17th International Conference on Biomagnetism . doi: 10.3389/conf.fnins.2010.06.00438 Copyright: The abstracts in this collection have not been subject to any Frontiers peer review or checks, and are not endorsed by Frontiers. They are made available through the Frontiers publishing platform as a service to conference organizers and presenters. The copyright in the individual abstracts is owned by the author of each abstract or his/her employer unless otherwise stated. Each abstract, as well as the collection of abstracts, are published under a Creative Commons CC-BY 4.0 (attribution) licence (https://creativecommons.org/licenses/by/4.0/) and may thus be reproduced, translated, adapted and be the subject of derivative works provided the authors and Frontiers are attributed. For Frontiers’ terms and conditions please see https://www.frontiersin.org/legal/terms-and-conditions. Received: 12 Apr 2010; Published Online: 12 Apr 2010. * Correspondence: Markus Bauer, University College London, London, United Kingdom, markus.bauer@gmail.com Login Required This action requires you to be registered with Frontiers and logged in. To register or login click here. Abstract Info Abstract The Authors in Frontiers Markus Bauer Gareth Barnes Christian Kluge Jon Driver Google Markus Bauer Gareth Barnes Christian Kluge Jon Driver Google Scholar Markus Bauer Gareth Barnes Christian Kluge Jon Driver PubMed Markus Bauer Gareth Barnes Christian Kluge Jon Driver Related Article in Frontiers Google Scholar PubMed Abstract Close Back to top Javascript is disabled. Please enable Javascript in your browser settings in order to see all the content on this page.