Event

The Department of Physics hosts the Student Seminar of Mr. Oba Heru Ranu on Thursday 10th November, 2011, at 1 pm, at the Faculty of Science and Agriculture, 3rd Floor, Room 413. 

Mr. Ranu will deliver his seminar on “the Relevance of Various Non-linear Techniques and Low Frequency Visual Stimulation in Characterizing EEG Signals.”

Abstract:

The electroencephalogram (EEG) represents brain activity in the form of voltage fluctuations with time. There are many powerful tools that have been independently developed to conduct analysis of voltage sequences from different regions of the brain, for example, wavelet analysis, spectral analysis, Tsallis-like information analysis and coarse-grained correlation dimensional analysis. This seminar examines the effectiveness of these analytical methods in detecting EEG changes in a group of normal volunteers. As a preliminary test, the above analytical methods were applied to quantify subtle parameter changes in the time evolution of the well-known Henon’s map. In addition the effect of low frequency visual stimulation on event related p300 potentials is explored. This work is supported by the Inter American Development Bank / UWI Research Fund.