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Enhancing Arousal Level Detection in EEG Signals through Genetic Algorithm-based Feature Selection and Fast Bit Hopping.
Sheikhian, Elnaz; Ghoshuni, Majid; Azarnoosh, Mahdi; Khalilzadeh, Mohammad Mahdi.
Afiliación
  • Sheikhian E; Department of Biomedical Engineering, Mashhad Branch, Islamic Azad University, Mashhad, Iran.
  • Ghoshuni M; Department of Biomedical Engineering, Mashhad Branch, Islamic Azad University, Mashhad, Iran.
  • Azarnoosh M; Department of Biomedical Engineering, Mashhad Branch, Islamic Azad University, Mashhad, Iran.
  • Khalilzadeh MM; Department of Biomedical Engineering, Mashhad Branch, Islamic Azad University, Mashhad, Iran.
J Med Signals Sens ; 14: 20, 2024.
Article en En | MEDLINE | ID: mdl-39234591
ABSTRACT

Background:

This study explores a novel approach to detecting arousal levels through the analysis of electroencephalography (EEG) signals. Leveraging the Faller database with data from 18 healthy participants, we employ a 64-channel EEG system.

Methods:

The approach we employ entails the extraction of ten frequency characteristics from every channel, culminating in a feature vector of 640 dimensions for each signal instance. To enhance classification accuracy, we employ a genetic algorithm for feature selection, treating it as a multiobjective optimization task. The approach utilizes fast bit hopping for efficiency, overcoming traditional bit-string limitations. A hybrid operator expedites algorithm convergence, and a solution selection strategy identifies the most suitable feature subset.

Results:

Experimental results demonstrate the method's effectiveness in detecting arousal levels across diverse states, with improvements in accuracy, sensitivity, and specificity. In scenario one, the proposed method achieves an average accuracy, sensitivity, and specificity of 93.11%, 98.37%, and 99.14%, respectively. In scenario two, the averages stand at 81.35%, 88.65%, and 84.64%.

Conclusions:

The obtained results indicate that the proposed method has a high capability of detecting arousal levels in different scenarios. In addition, the advantage of employing the proposed feature reduction method has been demonstrated.
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Texto completo: 1 Colección: 01-internacional Base de datos: MEDLINE Idioma: En Revista: J Med Signals Sens Año: 2024 Tipo del documento: Article País de afiliación: Irán Pais de publicación: India
Texto completo
Añadir a Mi BVS
Imprimir
XML
PubMed Links
Buscar en Google

Texto completo: 1 Colección: 01-internacional Base de datos: MEDLINE Idioma: En Revista: J Med Signals Sens Año: 2024 Tipo del documento: Article País de afiliación: Irán Pais de publicación: India