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Recent Advances in High Density EEG Research and its Epilepsy Applications

Recent Advances in High Density EEG Research and its Epilepsy Applications

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Recent Advances in High Density EEG Research and its Epilepsy Applications
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<strong>SCHOOL OF ENVIRONMENTAL SCIENCES JAWAHARLAL NEHRU UNIVERSITY </strong> a talk on <strong>Recent Advances in High Density EEG Research and its Epilepsy Applications</strong> Speaker:<strong> Prof. Ceon Ramon</strong>, University of Washington, Seattle, USA and Reykjavik University, Reykjavik, Iceland Date:<strong> 30th March 2015 (Monday)</strong> <strong>Abstract:</strong> High density (256-channel) EEG systems are able to map the electrical activity of the whole brain with a 2 cm spatial resolution. These systems are beginning to be used in cognitive and neuroscience research, including clinical applications, such as, epilepsy localization. In this talk, the basics of EEG generation and measurements from cortical electrical activity will be discussed. From measured EEG data, local and global phase synchronization patterns can be derived for normal and epileptic brain activity. The spatiotemporal plots of phase synchronization patterns derived from seizure-free, short duration (3-10min) interictal EEG data exhibit a higher intensity patterns in different EEG bands in the vicinity of epileptogenic zones in the brain. In contrast, the cross-frequency couplings in theta-gamma and beta-gamma bands were decreased and fragmented in the epileptogenic zones. Spatiotemporal plots of EEG phase also exhibit dynamical phase cone patterns which are similar to bubbles in the boiling water. The rates of formation of these phase cone patterns are higher in the vicinity of epileptogenic zones. These findings have a potential to localize epileptogenic zones in a noninvasive fashion from a seizure-free and spike-free short duration high density EEG data.

A warm welcome to the modified and updated website of the Centre for East Asian Studies. The East Asian region has been at the forefront of several path-breaking changes since 1970s beginning with the redefining the development architecture with its State-led development model besides emerging as a major region in the global politics and a key hub of the sophisticated technologies. The Centre is one of the thirteen Centres of the School of International Studies, Jawaharlal Nehru University, New Delhi that provides a holistic understanding of the region.

Initially, established as a Centre for Chinese and Japanese Studies, it subsequently grew to include Korean Studies as well. At present there are eight faculty members in the Centre. Several distinguished faculty who have now retired include the late Prof. Gargi Dutt, Prof. P.A.N. Murthy, Prof. G.P. Deshpande, Dr. Nranarayan Das, Prof. R.R. Krishnan and Prof. K.V. Kesavan. Besides, Dr. Madhu Bhalla served at the Centre in Chinese Studies Programme during 1994-2006. In addition, Ms. Kamlesh Jain and Dr. M. M. Kunju served the Centre as the Documentation Officers in Chinese and Japanese Studies respectively.

The academic curriculum covers both modern and contemporary facets of East Asia as each scholar specializes in an area of his/her interest in the region. The integrated course involves two semesters of classes at the M. Phil programme and a dissertation for the M. Phil and a thesis for Ph. D programme respectively. The central objective is to impart an interdisciplinary knowledge and understanding of history, foreign policy, government and politics, society and culture and political economy of the respective areas. Students can explore new and emerging themes such as East Asian regionalism, the evolving East Asian Community, the rise of China, resurgence of Japan and the prospects for reunification of the Korean peninsula. Additionally, the Centre lays great emphasis on the building of language skills. The background of scholars includes mostly from the social science disciplines; History, Political Science, Economics, Sociology, International Relations and language.

Several students of the centre have been recipients of prestigious research fellowships awarded by Japan Foundation, Mombusho (Ministry of Education, Government of Japan), Saburo Okita Memorial Fellowship, Nippon Foundation, Korea Foundation, Nehru Memorial Fellowship, and Fellowship from the Chinese and Taiwanese Governments. Besides, students from Japan receive fellowship from the Indian Council of Cultural Relations.