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
Identifiers and Pagination:Year: 2009
First Page: 17
Last Page: 25
Publisher Id: TONIJ-3-17
Article History:Received Date: 17/4/2008
Revision Received Date: 24/9/2008
Acceptance Date: 17/12/2008
Electronic publication date: 1/4/2009
Collection year: 2009
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.
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.