Analysis of the complexity of brain under mobile phone radiation using largest Lyapunov exponent

Abstract

The changes in complexity of brain while using two types of mobile phones are analyzed using Electroencephalogram (EEG) signals in this paper. Largest Lyapunov Exponent (LLE) of the data set prepared with EEG record of 35 subjects with and without phone is analyzed using non parametric Mann-Whitney U test. The test is significant in 8 electrodes for data set with phone-1 and is significant for one electrode for the data set with phone-2. Symmetry of brain using asymmetry index is analyzed for further verification and found within allowable range. It is concluded that there is no significant change in complexity of brain while using mobile phone.