Title :
Inter and Intra-Hemispheric EEG Coherence Responses to Visual Stimulations
Author :
Cvetkovic, D. ; Cosic, I.
Author_Institution :
RMIT Univ., Melbourne
Abstract :
This study investigated whether the visual stimulation at extremely low frequency (ELF) could possibly induce changes in the electroencephalographic (EEG) responses. The functional connectedness was examined between the brain regions when the minimum variance distortion-less response (MVDR) coherence algorithm together with Wilcoxon signed-ranks test statistical method was applied. The results showed that functional significance of EEG alpha rhythms at parietal, and occipital cortex, respond to oscillatory 13 Hz and 16.66 Hz light stimulation, respectively.
Keywords :
electroencephalography; medical signal processing; statistical analysis; visual evoked potentials; EEG alpha rhythms; MVDR coherence algorithm; Wilcoxon signed-ranks test statistical method; brain region; extremely low frequency; frequency 13 Hz; frequency 16.66 Hz; inter hemispheric EEG response; intra-hemispheric EEG response; minimum variance distortion-less response; occipital cortex; parietal cortex; visual stimulations; Electrodes; Electroencephalography; Eyes; Frequency; Ground penetrating radar; Light emitting diodes; Optical arrays; Rhythm; Senior members; Sleep; Adult; Alpha Rhythm; Dominance, Cerebral; Female; Humans; Male; Middle Aged; Occipital Lobe; Parietal Lobe; Photic Stimulation;
Conference_Titel :
Engineering in Medicine and Biology Society, 2007. EMBS 2007. 29th Annual International Conference of the IEEE
Conference_Location :
Lyon
Print_ISBN :
978-1-4244-0787-3
DOI :
10.1109/IEMBS.2007.4352920
