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Related papers: Classifying sleep states using persistent homology…

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Objective: The aim of this study is to develop an automated classification algorithm for polysomnography (PSG) recordings to detect non-apneic and non-hypopneic arousals. Our particular focus is on detecting the respiratory effort-related…

Signal Processing · Electrical Eng. & Systems 2019-09-09 Ali Bahrami Rad , Morteza Zabihi , Zheng Zhao , Moncef Gabbouj , Aggelos K. Katsaggelos , Simo Särkkä

Modern sleep monitoring development is shifting towards the use of unobtrusive sensors combined with algorithms for automatic sleep scoring. Many different combinations of wet and dry electrodes, ear-centered, forehead-mounted or…

Quantitative Methods · Quantitative Biology 2021-04-14 Kaare B. Mikkelsen , Huy Phan , Mike L. Rank , Martin C. Hemmsen , Maarten de Vos , Preben Kidmose

Symbolic methods of analysis are valuable tools for investigating complex time-dependent signals. In particular, the ordinal method defines sequences of symbols according to the ordering in which values appear in a time series. This method…

Data Analysis, Statistics and Probability · Physics 2018-10-17 C. Quintero-Quiroz , Luis Montesano , A. J. Pons , M. C. Torrent , J. García-Ojalvo , C. Masoller

Study Objectives: We investigate a Mamba-based deep learning approach for sleep staging on signals from ANNE One (Sibel Health, Evanston, IL), a non-intrusive dual-module wireless wearable system measuring chest electrocardiography (ECG),…

Preclinical sleep research remains constrained by labor intensive, manual vigilance state classification and inter rater variability, limiting throughput and reproducibility. This study presents an automated framework developed by Team…

Signal Processing · Electrical Eng. & Systems 2025-07-22 Sankalp Jajee , Gaurav Kumar , Homayoun Valafar

Psychiatric patients' passive activity monitoring is crucial to detect behavioural shifts in real-time, comprising a tool that helps clinicians supervise patients' evolution over time and enhance the associated treatments' outcomes.…

Signal Processing · Electrical Eng. & Systems 2022-11-21 Fernando Moreno-Pino , María Martínez-García , Pablo M. Olmos , Antonio Artés-Rodríguez

Study Objectives: Sleep stage scoring is performed manually by sleep experts and is prone to subjective interpretation of scoring rules with low intra- and interscorer reliability. Many automatic systems rely on few small-scale databases…

Computer Vision and Pattern Recognition · Computer Science 2020-08-24 Alexander Neergaard Olesen , Poul Jennum , Emmanuel Mignot , Helge B D Sorensen

Recently, growing health awareness, novel methods allow individuals to monitor sleep at home. Utilizing sleep sounds offers advantages over conventional methods like smartwatches, being non-intrusive, and capable of detecting various…

Machine Learning · Computer Science 2024-10-18 Shintaro Tamai , Masayuki Numao , Ken-ichi Fukui

Accurate sleep stage classification is essential for understanding sleep disorders and improving overall health. This study proposes a novel three-stage approach for sleep stage classification using ECG signals, offering a more accessible…

Artificial Intelligence · Computer Science 2024-12-04 Poorya Aghaomidi , Ge Wang

Rest is essential for a high-level physiological and psychological performance. It is also necessary for the muscles to repair, rebuild, and strengthen. There is a significant correlation between the quality of rest and the resting posture.…

Machine Learning · Computer Science 2021-08-27 Md. Mohsin Sarker Raihan , Muhammad Muinul Islam , Fariha Fairoz , Abdullah Bin Shams

Fluctuations in heart rate are intimately tied to changes in the physiological state of the organism. We examine and exploit this relationship by classifying a human subject's wake/sleep status using his instantaneous heart rate (IHR)…

Applications · Statistics 2018-08-02 John Malik , Yu-Lun Lo , Hau-tieng Wu

The lack of large video databases obtained from real patients with respiratory disorders makes the design and optimization of video-based monitoring systems quite critical. The purpose of this study is the development of suitable models and…

Applications · Statistics 2023-07-14 Davide Alinovi , Gianluigi Ferrari , Francesco Pisani , Riccardo Raheli

Aphasia is a speech-language impairment commonly caused by damage to the left hemisphere. Due to the complexity of speech-language processing, the neural mechanisms that underpin various symptoms between different types of aphasia are still…

Neurons and Cognition · Quantitative Biology 2023-02-21 Xingpei Zhao , Nicholas Riccardi , Rutvik H. Desai , Dirk-Bart den Ouden , Julius Fridriksson , Yuan Wang

Brain disorders are an umbrella term for a group of neurological and psychiatric conditions that have a major effect on thinking, feeling, and acting. These conditions encompass a wide range of conditions. The illnesses in question pose…

Neurons and Cognition · Quantitative Biology 2025-11-11 Aniruddha Saha , Soujanya Hazra , Sanjay Ghosh

Motor activity of humans displays complex temporal fluctuations which can be characterized by scale-invariant statistics, thus documenting that structure and fluctuations of such kinetics remain similar over a broad range of time scales.…

Neurons and Cognition · Quantitative Biology 2016-06-22 E. Gudowska-Nowak , J. K. Ochab , K. Oles , E. Beldzik , D. R. Chialvo , A. Domagalik , M. Fafrowicz , T. Marek , M. A. Nowak , H. Oginska , J. Szwed , J. Tyburczyk

Light sleep is a sleeping period which occurs within each hour during the sleep. This is the period when people are closest to awakening. With this being the case people tend to move more frequently and aggressively during these periods.…

Computers and Society · Computer Science 2018-02-27 Egemen Turkyilmaz , Alper Akgul , Erkan Bostanci , Mehmet Serdar Guzel

Sleep is a crucial aspect of our overall health and well-being. It plays a vital role in regulating our mental and physical health, impacting our mood, memory, and cognitive function to our physical resilience and immune system. The…

Objective. Sleep is a critical physiological process that plays a vital role in maintaining physical and mental health. Accurate detection of arousals and sleep stages is essential for the diagnosis of sleep disorders, as frequent and…

Signal Processing · Electrical Eng. & Systems 2024-06-05 Hasan Zan , Abdulnasir Yildiz

Snoring is a common disorder that affects people's social and marital lives. The annoyance caused by snoring can be partially solved with active noise control systems. In this context, the present work aims at introducing an enhanced system…

Audio and Speech Processing · Electrical Eng. & Systems 2023-08-01 Valeria Bruschi , Michela Cantarini , Luca Serafini , Stefano Nobili , Stefania Cecchi , Stefano Squartini

A network with local dynamics of logistic type is considered. We implement a mean-field multiplicative coupling among first-neighbor nodes. When the coupling parameter is small the dynamics is dissipated and there is no activity: the…

Adaptation and Self-Organizing Systems · Physics 2007-05-23 R. Lopez-Ruiz , Y. Moreno , S. Boccaletti , D. -U. Hwang , A. F. Pacheco