Influence of sinusoidally modulated visual stimuli at extremely low frequency range on the human EEG activity

D Cvetkovic; D Simpson; I Cosic

doi:10.1109/IEMBS.2006.259565

Influence of sinusoidally modulated visual stimuli at extremely low frequency range on the human EEG activity

Conf Proc IEEE Eng Med Biol Soc. 2006:2006:1311-4. doi: 10.1109/IEMBS.2006.259565.

Authors

D Cvetkovic¹, D Simpson, I Cosic

Affiliation

¹ School of Electrical and Computer Engineering, RMIT, Melbourne, Victoria, Australia. dean.cvetkovic@rmit.edu.au

PMID: 17945633
DOI: 10.1109/IEMBS.2006.259565

Abstract

The purpose of this study was to investigate whether sinusoidally modulated visual stimuli at extremely low frequencies (ELF) of 50, 16.66, 13, 10, 8.33 and 4Hz could influence the changes in EEG activity in 33 human subjects. An improved design of visual stimulator system has addressed an issue of electrical interference from electrical signals driven by LED arrays onto simultaneously recorded EEG. A comparison between 1 and 3-Way ANOVA was performed in order to evaluate whether visual stimuli at ELFs could influence the EEG in humans to compliment the currently active medical research in seasonal affective disorder (SAD) and photic driving. The results revealed that under evaluation of 1 and 3-Way repeated-measures ANOVA tests, the Theta, Alpha2 and Gamma EEG bands exhibited a common significant difference between ELF visual stimuli.

MeSH terms

Adult
Algorithms*
Computer Simulation
Electroencephalography / methods*
Evoked Potentials, Visual / physiology*
Female
Humans
Male
Middle Aged
Models, Neurological*
Photic Stimulation / methods*
Visual Cortex / physiology*