Advanced sleep spindle identification with neural networks

Abstract Sleep spindles are neurophysiological phenomena that appear to be linked to memory formation and other functions of the central nervous system, and that can be observed in electroencephalographic recordings (EEG) during sleep. Manually identified spindle annotations in EEG recordings suffer...

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Main Authors: Lars Kaulen, Justus T. C. Schwabedal, Jules Schneider, Philipp Ritter, Stephan Bialonski
Format: Article
Language:English
Published: Nature Portfolio 2022-05-01
Series:Scientific Reports
Online Access:https://doi.org/10.1038/s41598-022-11210-y
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author Lars Kaulen
Justus T. C. Schwabedal
Jules Schneider
Philipp Ritter
Stephan Bialonski
author_facet Lars Kaulen
Justus T. C. Schwabedal
Jules Schneider
Philipp Ritter
Stephan Bialonski
author_sort Lars Kaulen
collection DOAJ
description Abstract Sleep spindles are neurophysiological phenomena that appear to be linked to memory formation and other functions of the central nervous system, and that can be observed in electroencephalographic recordings (EEG) during sleep. Manually identified spindle annotations in EEG recordings suffer from substantial intra- and inter-rater variability, even if raters have been highly trained, which reduces the reliability of spindle measures as a research and diagnostic tool. The Massive Online Data Annotation (MODA) project has recently addressed this problem by forming a consensus from multiple such rating experts, thus providing a corpus of spindle annotations of enhanced quality. Based on this dataset, we present a U-Net-type deep neural network model to automatically detect sleep spindles. Our model’s performance exceeds that of the state-of-the-art detector and of most experts in the MODA dataset. We observed improved detection accuracy in subjects of all ages, including older individuals whose spindles are particularly challenging to detect reliably. Our results underline the potential of automated methods to do repetitive cumbersome tasks with super-human performance.
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spelling doaj.art-ca9c83e84b3e4c3197806758855978c82022-12-22T03:24:31ZengNature PortfolioScientific Reports2045-23222022-05-0112111010.1038/s41598-022-11210-yAdvanced sleep spindle identification with neural networksLars Kaulen0Justus T. C. Schwabedal1Jules Schneider2Philipp Ritter3Stephan Bialonski4Department of Medical Engineering and Technomathematics, FH Aachen University of Applied SciencesIndependent researcherDepartment of Psychiatry and Psychotherapy, University Hospital Carl Gustav Carus, Technische Universität DresdenDepartment of Psychiatry and Psychotherapy, University Hospital Carl Gustav Carus, Technische Universität DresdenDepartment of Medical Engineering and Technomathematics, FH Aachen University of Applied SciencesAbstract Sleep spindles are neurophysiological phenomena that appear to be linked to memory formation and other functions of the central nervous system, and that can be observed in electroencephalographic recordings (EEG) during sleep. Manually identified spindle annotations in EEG recordings suffer from substantial intra- and inter-rater variability, even if raters have been highly trained, which reduces the reliability of spindle measures as a research and diagnostic tool. The Massive Online Data Annotation (MODA) project has recently addressed this problem by forming a consensus from multiple such rating experts, thus providing a corpus of spindle annotations of enhanced quality. Based on this dataset, we present a U-Net-type deep neural network model to automatically detect sleep spindles. Our model’s performance exceeds that of the state-of-the-art detector and of most experts in the MODA dataset. We observed improved detection accuracy in subjects of all ages, including older individuals whose spindles are particularly challenging to detect reliably. Our results underline the potential of automated methods to do repetitive cumbersome tasks with super-human performance.https://doi.org/10.1038/s41598-022-11210-y
spellingShingle Lars Kaulen
Justus T. C. Schwabedal
Jules Schneider
Philipp Ritter
Stephan Bialonski
Advanced sleep spindle identification with neural networks
Scientific Reports
title Advanced sleep spindle identification with neural networks
title_full Advanced sleep spindle identification with neural networks
title_fullStr Advanced sleep spindle identification with neural networks
title_full_unstemmed Advanced sleep spindle identification with neural networks
title_short Advanced sleep spindle identification with neural networks
title_sort advanced sleep spindle identification with neural networks
url https://doi.org/10.1038/s41598-022-11210-y
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