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EOG correction: A comparison of four methods

Croft, Rodney J and Chandler, Jody S and Barry, Robert J and Cooper, Nicholas R and Clarke, Adam R (2005) 'EOG correction: A comparison of four methods.' Psychophysiology, 42 (1). pp. 16-24. ISSN 0048-5772

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Abstract

EOG correction is a class of techniques that account for ocular artifact in the electroencephalogram (EEG) by subtracting electrooculographic data from the EEG. The purpose of this study was to evaluate four of these correction techniques (Verleger, Gasser, & Möcks, 1982 [VGM]; Gratton, Coles, & Donchin, 1983 [GCD]; Semlitsch, Presslich, Schuster, & Anderer, 1986 [SPSA]; Croft & Barry, 2000 [CB]). Blinks, vertical eye movements (VEM), and horizontal eye movements (HEM) from 26 subjects were corrected using these techniques, and eye movement event-related potentials computed to aid validation. HEMs were corrected better by CB, VGM/GCD then SPSA, VEMs by CB, VGM/GCD then SPSA, and blinks by CB, SPSA, GCD and then VGM, with the advantage of CB substantial for blinks (η2 > .72), VEMs (η2 > .60), and HEMs (η2 > .27). It is argued that the CB procedure adequately accounts for ocular artifact in the EEG. Reasons for the limitations of the other procedures are discussed. Copyright © 2005 Society for Psychophysiological Research.

Item Type: Article
Uncontrolled Keywords: Skin; Humans; Electromyography; Electrodes; Blinking; Reflex, Startle
Subjects: B Philosophy. Psychology. Religion > BF Psychology
R Medicine > RC Internal medicine > RC0321 Neuroscience. Biological psychiatry. Neuropsychiatry
Divisions: Faculty of Science and Health
Faculty of Science and Health > Psychology, Department of
SWORD Depositor: Elements
Depositing User: Elements
Date Deposited: 29 Jan 2015 13:31
Last Modified: 15 Jan 2022 00:58
URI: http://repository.essex.ac.uk/id/eprint/12446

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