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Clasificación automatizada temporalmente continua de sueño-vigilia mediante aprendizaje profundo

Pranavan Somaskandhan1, Henri Korkalainen2,3, Timo Leppänen1,2,3

  • 1School of Electrical Engineering and Computer Science, The University of Queensland, Brisbane, Australia.

medRxiv : the preprint server for health sciences
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PubMed
Resumen
Este resumen es generado por máquina.

Este estudio presenta un clasificador de sueño-vigilia de aprendizaje profundo que supera las limitaciones de las épocas fijas de 30 segundos. El novedoso modelo proporciona una puntuación de sueño de alta resolución temporal para una evaluación fisiológica más precisa.

Palabras clave:
limitación de épocas de 30 segundosEstimación de confianzaAprendizaje profundoAlta resolución temporalPuntuación de sueñoTransiciones sueño-vigiliaPuntuación temporalmente continuaTransferencia de aprendizaje

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Área de la Ciencia:

  • Ciencia del sueño; Neurociencia computacional; Inteligencia artificial en medicina

Sus antecedentes:

  • La puntuación actual del sueño se basa en épocas fijas de 30 segundos, que pueden no representar con precisión la dinámica del sueño.
  • Esta limitación puede obstaculizar la evaluación fisiológica precisa del sueño.

Objetivo del estudio:

  • Desarrollar un clasificador de sueño-vigilia basado en aprendizaje profundo con alta resolución temporal.
  • Utilizar la puntuación manual temporalmente continua, eludiendo los límites fijos de las épocas.
  • Mejorar la consistencia fisiológica de la evaluación del sueño.

Principales métodos:

  • Se entrenó un modelo de aprendizaje profundo basado en U-Net con datos de sueño-vigilia.
  • Se empleó la transferencia de aprendizaje, ajustando el modelo con datos puntuados temporalmente continuos.
  • El modelo se validó en conjuntos de datos independientes utilizando puntuación continua.

Principales resultados:

  • El clasificador logró una alta concordancia (88,96 % y 88,23 %) con la puntuación manual continua.
  • Se observaron fuertes correlaciones entre las predicciones de 1 segundo y la puntuación manual para el tiempo total de sueño (r=0,93) y las transiciones de sueño a vigilia (r=0,67).

Conclusiones:

  • El modelo desarrollado aborda eficazmente las limitaciones de la puntuación tradicional de épocas de 30 segundos.
  • Este enfoque ofrece una base práctica para una evaluación del sueño-vigilia fisiológicamente más consistente.
  • Las estimaciones de confianza de la predicción pueden guiar la revisión específica de posibles errores de clasificación.