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Author Spotlight: IntelliSleepScorer — A High-Accuracy, Accessible GUI Software for Automated Sleep Stage Scoring in Mice and its Application in Psychiatric Research
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Clasificación automatizada de la etapa de sueño utilizando LSTM optimizado para PSO en secuencias de EEG CAP

Manjur Kolhar1, Manahil Mohammed Alfuraydan1, Abdulaziz Alshammary1

  • 1Department of Health Information Management and Technology, College of Applied Medical Sciences, King Faisal University, Al-Ahsa 36362, Saudi Arabia.

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Resumen

Este estudio introduce un sistema de aprendizaje profundo para clasificar las etapas del sueño y los subtipos de patrón alternativo cíclico (CAP) a partir de datos de EEG. El nuevo enfoque mejora la precisión y la interpretabilidad, superando los desafíos en el análisis del sueño.

Palabras clave:
Análisis de la señal EEGpatrón alternativo cíclicomemoria larga a corto plazoOptimización de enjambres de partículasProcesamiento de datos polisomnográficosClasificación de las fases del sueño

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Área de la Ciencia:

  • Neurociencia computacional
  • Inteligencia artificial en la medicina

Sus antecedentes:

  • La clasificación de la etapa automática del sueño y el patrón alternativo cíclico (CAP) del EEG es un desafío debido a la corta duración de los eventos y el desequilibrio de clase.
  • Los métodos existentes luchan con la complejidad del análisis de la microestructura del sueño.

Objetivo del estudio:

  • Desarrollar un sistema de aprendizaje profundo específico del dominio para una clasificación precisa de las etapas del sueño y los subtipos CAP basados en EEG.
  • Mejorar el rendimiento y la interpretabilidad del modelo mediante técnicas de optimización híbrida.

Principales métodos:

  • Implementación de una red de memoria larga a corto plazo (LSTM).
  • Optimización mediante un método híbrido de ajuste de hiperparámetros de optimización de enjambres de partículas (PSO-Hyperband).
  • Aplicación de técnicas de interpretabilidad basadas en SHAP para el análisis de características.

Principales resultados:

  • Se logró una precisión del 97% para la fase REM y del 96% para la fase S0 en la base de datos del sueño CAP.
  • Se obtienen puntuaciones de ROC AUC superiores a 0,92 para los subtipos CAP desafiantes (A1-A3).
  • Se ha demostrado una mejora de la transparencia del modelo mediante la identificación de las principales características espectrales y morfológicas del EEG.

Conclusiones:

  • El marco propuesto trata eficazmente el desequilibrio de clases y mejora la discriminación entre subtipos similares de la PAC.
  • Los métodos de optimización híbridos mejoran el rendimiento, la generalización y la interpretabilidad de los modelos de aprendizaje profundo para el análisis de la microestructura del sueño.