PMID: 9545663Apr 18, 1998Paper

Steady-state visual evoked potentials to computer monitor flicker

International Journal of Psychophysiology : Official Journal of the International Organization of Psychophysiology
E LyskovS Medvedev

Abstract

In the present study, steady-state visual evoked potentials (S-VEP) in response to amplitude-modulated light from a computer monitor (colour sVGA, 15-inch tube) have been examined. S-VEPs to computer monitors with different refresh rates (60 Hz or 72 Hz) and screen brightness (65 cd/m2 or 6 cd/m2) were recorded in 13 subjects with normal or corrected-to-normal vision. EEG samples were amplified, averaged and stored using Cadwell Excel EMG-EP recorder and a regression model was applied for the amplitude analysis. The mean values of S-VEP amplitude at 60 Hz were found to be significantly higher at 60 Hz refresh rate vs. 72 Hz (F1,12 = 14.1; P = 0.003). Effect of screen brightness (F2,24 = 6.5; e = 0.62; P = 0.00075) as well as the interaction effect of refresh rate and screen brightness (F2,24 = 11.6; P = 0.0003) were also found to be significant. Data obtained show that the characteristics of amplitude-modulated light from a computer monitor (frequency, brightness, waveform) are sufficient to elicit S-VEP, and the influence is not only restricted to the peripheral divisions of the visual system as it was shown earlier, but also extends to the central brain structures.

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Citations

Jan 29, 2002·International Journal of Psychophysiology : Official Journal of the International Organization of Psychophysiology·E LyskovK Hansson Mild
Jun 23, 1999·Clinical Neurophysiology : Official Journal of the International Federation of Clinical Neurophysiology·C S HerrmannE Pfeifer
Dec 15, 2010·Proceedings. Biological Sciences·D Samuel Schwarzkopf, Geraint Rees
Jan 27, 2012·Journal of Psychiatric Research·Doug Hyun HanPerry F Renshaw
Aug 10, 2010·Schizophrenia Research·Igor RiečanskýRadovan Přikryl
May 10, 2006·Current Biology : CB·David CarmelGeraint Rees
Sep 15, 2005·Perceptual and Motor Skills·Kong-King Shieh, Mei-Hsiang Chen
Jan 2, 2003·Annals of Neurology·Pierre Krolak-SalmonOlivier Bertrand
May 18, 2019·Journal of Vision·Maximilian SteinUwe Mattler
Dec 9, 2015·Journal of Neural Engineering·Markus A Wenzel Benjamin Blankertz
Feb 19, 2015·The Neuroscientist : a Review Journal Bringing Neurobiology, Neurology and Psychiatry·Maxim Volgushev
Nov 26, 2020·Cognitive, Affective & Behavioral Neuroscience·Alfred LimJason Satel

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