(10) Spatiotemporal Human Brain Activities by Electroencephalograms with Equivalent Current Dipole Source Localization Method
Takahiro YAMANOI
2007 International Symposium on Advanced Intelligent Systems, pp.72-75, 2007-9
In this paper, some spatiotemporal human brain activities according to the visual stimulus are introduced. To investigate the human brain activity, we have been using the electroencephalograms (EEGs) and the equivalent current dipole source localization (ECDL) method. The advantage of using EEGs in the research of the brain activities is in the fact that the measuring system is composed from not so expensive equipments and that it has good portability than other methods used in this domain of research at today. So we can available this even in a small laboratory. The higher temporal resolution within the order of millisecond could be obtained from EEGs and the higher spatial resolution could be compensated by use of ECDL method. The paper explained the methodology of EEGs and ECDL method. Further some applications for the research on brain activities by use of the present method had explained such as spatiotemporal difference between Kanji and Arrow, differences on random dot stereogram with some depths and difference between correct and approximation answer choices, and spatiotemporal difference between ideational and interpersonal meaning of Japanese sentences.
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