RESEARCH ARTICLE


Methods for Dichoptic Stimulus Presentation in Functional Magnetic Resonance Imaging - A Review



Bhaskar Choubey*, 1, 2, 3, Alina Jurcoane2, 3, 4, 5, Lars Muckli3, 4, 6, Ruxandra Sireteanu2, 3, 5, 7
1 Department of Engineering Sciences, University of Oxford, Oxford, OX1 3PJ, UK
2 Department of Biological Psychology, Institute for Psychology, Johann Wolfgang Goethe-University, Mertonstrasse 17, 60054 Frankfurt, Germany
3 Department of Neurophysiology, Max-Planck-Institute for Brain Research, Deutschordenstrasse 46, 60528 Frankfurt, Germany
4 Brain Imaging Centre, Schleusenweg 2-6, Haus 95H, 60528 Frankfurt, Germany
5 Centre for Research on Individual Development and Adaptive Education (IDeA), Frankfurt, Germany
6 Centre for Cognitive Neuroimaging, Department of Psychology, University of Glasgow, 58 Hillhead Street, Glasgow G12 8QB, UK
7 Department of Biomedical Engineering, College of Engineering, Boston University, 44 Cummington Street, Boston, Massachusetts 02215, USA


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© Choubey et al.; Licensee Bentham Open

open-access license: This is an open access article licensed under the terms of the Creative Commons Attribution Non-Commercial License (http://creativecommons.org/licenses/by-nc/3.0/) which permits unrestricted, non-commercial use, distribution and reproduction in any medium, provided the work is properly cited.

* Address correspondence to this author at the Department of Engineering Sciences, University of Oxford, Oxford, OX1 3PJ, UK; Tel: +44 1865 2 73805; Fax: +44 1865 2 73905; E-mail: bhaskar@robots.ox.ac.uk


Abstract

Dichoptic stimuli (different stimuli displayed to each eye) are increasingly being used in functional brain imaging experiments using visual stimulation. These studies include investigation into binocular rivalry, interocular information transfer, three-dimensional depth perception as well as impairments of the visual system like amblyopia and stereodeficiency. In this paper, we review various approaches of displaying dichoptic stimulus used in functional magnetic resonance imaging experiments. These include traditional approaches of using filters (red-green, red-blue, polarizing) with optical assemblies as well as newer approaches of using bi-screen goggles.

Keywords: Dichoptic visual stimulation, fMRI, filters, video goggles.