Kolmogorov entropy changes and cortical lateralization during complex problem solving task measured with EEG

Lian-Yi Zhang

doi:10.4236/jbise.2009.28097

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JBiSE> Vol.2 No.8, December 2009

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Kolmogorov entropy changes and cortical lateralization during complex problem solving task measured with EEG

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DOI: 10.4236/jbise.2009.28097 4,699 Downloads 8,153 Views Citations

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Lian-Yi Zhang

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ABSTRACT

The objective is to study changes in EEG time-domain Kolmogorov entropy and cortical lateralization of brain function areas during complex problem solving mental task in healthy human subjects. EEG data for healthy subjects are acquired during complex problem solving mental task using a net of 6 electrodes. The subject was given a nontrivial multiplication problem to solve and the signals were recorded for 10s during the task. Kolmogorov entropy values during the task were calculated. It was found that Kolmogorov entropy values were obviously greater in P4 channel (right) than ones in P3 channel (left) during complex problem solving task. It indicated that all subjects presented significant left parietal lateralization for the total frequency spectrum. These results suggest that it may be possible to noninvasively lateralize, and even eventually localize, cerebral regions essential for particular mental tasks from scalp EEG data.

KEYWORDS

Wada Test; Cortical Lateralization; EEG; Brain Function Area; Complex Problem Solving

Conflicts of Interest

The authors declare no conflicts of interest.

Cite this paper

Zhang, L. (2009) Kolmogorov entropy changes and cortical lateralization during complex problem solving task measured with EEG. Journal of Biomedical Science and Engineering, 2, 661-664. doi: 10.4236/jbise.2009.28097.

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