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Modified symbolic relative entropy based electroencephalogram time irreversibility analysis

Zhang Mei Wang Jun

Modified symbolic relative entropy based electroencephalogram time irreversibility analysis

Zhang Mei, Wang Jun
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  • Received Date:  25 July 2012
  • Accepted Date:  01 September 2012
  • Published Online:  05 February 2013

Modified symbolic relative entropy based electroencephalogram time irreversibility analysis

  • 1. Image Processing and Image Communications Key Laboratory, Nanjing University of Posts and Telecomm., Nanjing 210003, China
Fund Project:  Project supported by the National Natural Science Foundation of China (Grant Nos. 61271082, 61201029, 61102094), the Natural Science Foundation of Jiangsu Province, China (Grant Nos. BK2011759, BK2011565).

Abstract: In this letter, we show that the trajectory of electroencephalogram (EEG) possesses the character of time reversal asymmetry, which can provide information about the entropy production of EEG. We develop a kind of new method to estimate symbolic relative entropy and entropy production using forward and backward trajectories. Finally, we use this method to dispose and analyse the EEGs of younger and elder people, and is turned out that this method works and the average energy dissipation can be used as a parameter to detect nonequilibrium.

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