EEG Calmness Index Establishment Using Computational of Z-Score


  • S. A. M. Aris
  • N. A. Bani
  • M. N.Muhtazaruddin
  • M. N. Taib





EEG, calmness index, z-score, alpha waves, Wilcoxon signed ranks test.


A lot of useful information can be obtained through observation of the electroencephalogram (EEG) signal such as the human psychophysiology. It has been proven that EEG is handy in human diagnosis and tools to observe the brain condition. The study aims to establish a calmness index, which can differentiate the calmness level of an individual. Alpha waves were selected as the data features and computed into asymmetry index. The data features were clustered using Fuzzy C-Means (FCM) and resulted in three clusters. Wilcoxon Signed Ranks test was applied to determine the significance of the data features clustered by FCM. The Z-score obtained successfully distinguish three level of calmness index from the lower index until the higher index. With the advancement of signal processing techniques, the feature extractions for calmness index establishment computation is achievable.




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How to Cite

A. M. Aris, S., A. Bani, N., N.Muhtazaruddin, M., & N. Taib, M. (2018). EEG Calmness Index Establishment Using Computational of Z-Score. International Journal of Engineering & Technology, 7(4.11), 44–48.
Received 2018-10-01
Accepted 2018-10-01
Published 2018-10-02