Eye on the Prize Saccadic Processing and Electrooculogram (EOG) John Krauss.

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Presentation transcript:

Eye on the Prize Saccadic Processing and Electrooculogram (EOG) John Krauss

A saccade; “: a small rapid jerky movement of the eye especially as it jumps from fixation on one point to another.” - Merriam-Webster Saccadic Processing – “How the brain maintains perceptual continuity across eye movements.” Overview of non-EOG elements

Example of Eye Movement with a Painting

Electrooculogram (EOG) Functions by modeling a natural dipole found in the eye. Electric Potential of the eye created between the Retina and the Cornea. Any movement of the eye causes a change in electrical differences in potential. Consists of Standard Electrodes

Placement of Electrodes

Example of Data Collected Using EOG

Sources Andrew T. Duchowski, “ A Breadth-First Survey of Eye Tracking Applications”, Copyright 2002, Clemson University, Springer Verlag Supriya Ray, Neha Bhutani, Vishal Kapoor, Aditya Murthy, “Trans-Saccadic Processing of Visual and Motor Planning during sequential eye movements.”, Copyright Springer-Verlag Michael F. Marmor, M.D. and Eberhart Zrenner, M.D. for the International Society for Clinical Electrophysiology of Vision, published by Klinger Academic Publishers. 9/25/2011 EOG and EMG: two important switches in automatic sleep stage classification.” Estrada E, Nazeran H, Barragan J, Burk JR, Lucas EA, Behbehani K.SourceDept. of Electrical. & Computer. Engineering., Texas Univ., El Paso, TX, USA Liu Y, Zhou Z, Hu D, “Gaze independent brain-computer speller with covert visual search Tasks”, National University of Defense Technology, Hunan China, Epublication December 15th 2010.