Influence of Sinusoidally Modulated Visual Stimuli at Extremely Low Frequency Range on the Human EEG Activity

Author

Cvetkovic, D. ; Simpson, D. ; Cosic, I.

Author_Institution

Sch. of Electr. & Comput. Eng., RMIT, Melbourne, Vic.

fYear

2006

fDate

Aug. 30 2006-Sept. 3 2006

Firstpage

1311

Lastpage

1314

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

Keywords

electroencephalography; interference (signal); light emitting diodes; neurophysiology; statistical analysis; visual evoked potentials; 1-Way ANOVA; 10 Hz; 13 Hz; 16.66 Hz; 3-Way ANOVA; 4 Hz; 50 Hz; 8.33 Hz; LED arrays; alpha2 EEG bands; electrical interference; extremely low frequencies stimulation; gamma EEG bands; human EEG activity; photic driving; seasonal affective disorder; sinusoidally modulated visual stimuli; statistical method; theta EEG bands; visual stimulator system; Analysis of variance; Electroencephalography; Frequency; Geophysical measurement techniques; Ground penetrating radar; Humans; Interference; Light emitting diodes; Performance evaluation; Signal design;

fLanguage

English

Publisher

ieee

Conference_Titel

Engineering in Medicine and Biology Society, 2006. EMBS '06. 28th Annual International Conference of the IEEE

Conference_Location

New York, NY

ISSN

1557-170X

Print_ISBN

1-4244-0032-5

Electronic_ISBN

1557-170X

Type

conf

DOI

10.1109/IEMBS.2006.259565

Filename

4462001