Classification of Dementia in EEG with a Two-Layered Feed Forward Artificial Neural Network

Authors

  • G. Anuradha Department of ECE, BSA Crescent Institute of Science and Technology, India
  • D. N. Jamal Department of Electronics and Communication Engineering, B.S. Abdur Rahman Crescent Institute of Science and Technology, India

Abstract

Dementia has become a global public health issue. The current study is focused on diagnosing dementia with Electro Encephalography (EEG). The detection of the advancement of the disease is carried out by detecting the abnormal behavior in EEG measurements. Assessment and evaluation of EEG abnormalities is conducted for all the subjects in order to detect dementia. EEG feature analysis, namely dominant frequency, dominant frequency variability, and frequency prevalence, is done for abnormal and normal subjects and the results are compared. For dementia with Lewy bodies, in 85% of the epochs, the dominant frequency is present in the delta range whereas for normal subjects it lies in the alpha range. The dominant frequency variability in 75% of the epochs is above 4Hz for dementia with Lewy bodies, and in normal subjects at 72% of the epochs, the dominant frequency variability is less than 2Hz. It is observed that these features are sufficient to diagnose dementia with Lewy bodies. The classification of Lewy body dementia is done by using a feed-forward artificial neural network wich proved to have a 94.4% classification accuracy. The classification with the proposed feed-forward neural network has better accuracy, sensitivity, and specificity than the already known methods.

Keywords:

Lewy body dementia, EEG, dementia, neural network, dominant frequency

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[1]
G. Anuradha and D. N. Jamal, “Classification of Dementia in EEG with a Two-Layered Feed Forward Artificial Neural Network”, Eng. Technol. Appl. Sci. Res., vol. 11, no. 3, pp. 7135–7139, Jun. 2021.

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