Complex-valued distribution entropy and its application for seizure detection

Publication date: Available online 13 December 2019Source: Biocybernetics and Biomedical EngineeringAuthor(s): Tao Zhang, Wanzhong Chen, Mingyang LiAbstractEmbedding entropies are powerful indicators in quantifying the complexity of signal, but most of them are only applicable for real-valued signal and the phase information is ignored if the analyzed signal is complex-valued. To assess the complexity of complex-valued signal, a new entropy called complex-valued distribution entropy (CVDistEn) was first proposed in this study. Two rules, namely equal width criterion and equal area criterion, were employed to demarcate the complex-valued space and two kinds of CVDistEn, i.e., CVDistEn1 and CVDistEn2 were raised. Furthermore, two novel feature extraction methods: (1) flexible analytic wavelet transform (FAWT)-based CVDistEn1 and logarithmic energy (LE) (FAWTC1L), (2) FAWT-based CVDistEn2 and LE (FAWTC2L) were subsequently put forward to characterize the interictal and ictal EEGs. Fuzzy k-nearest neighbors (FKNN) classifier was finally employed to classify these two types of EEGs automatically. Experiment results show the fusion method of FAWTC1L and FKNN leads to the best accuracies (ACCs)/Matthews correlation coefficients (MCCs) of 99.99%/99.97% and 100%/100% for Bonn and Neurology &Sleep Centre EEG datasets, respectively, while the other fusion scheme of FAWTC2L and FKNN results in the highest ACCs/MCCs of 99.97%/99.93% and 99.94%/99.89% for the same datasets. The propose...
Source: Biocybernetics and Biomedical Engineering - Category: Biomedical Engineering Source Type: research

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Martins, RS, Girouard, P, Elliott, E, and Mekary, S. Physiological responses of a jaw repositioning custom-made mouthguard on airway and their effects on athletic performance. J Strength Cond Res 34(2): 422–429, 2020—Advanced dental techniques such as jaw-repositioning have shown to increase lower body muscular power such as vertical jump, but its effects on acceleration and speed have not been studied. Similarly, jaw repositioning is commonly used to increase airways volume and ventilation in a special population (i.e., obstructive sleep apnea); however, its ergogenic effects on aerobic performance have yet no...
Source: Journal of Strength and Conditioning Research - Category: Sports Medicine Tags: Original Research Source Type: research
CONCLUSIONS: Lifestyle subgroups of patients were determined by stress, emotional problems, and age. The groups were significantly associated with Aβ42 and diagnostic outcome. This pattern may confound the differentiation between objective and subjective memory problems. Asking about lifestyle variables, in conjunction with neuropsychological testing, could potentially identify individuals who are not likely to have objective memory impairment and guide interventions. PMID: 31982880 [PubMed - as supplied by publisher]
Source: Dementia and Geriatric Cognitive Disorders - Category: Psychiatry Tags: Dement Geriatr Cogn Disord Source Type: research
BOSTON (CBS) – The tragic news of Kobe Bryant’s death sent a shockwave across the country. For kids who grew up watching him play, the news can be difficult to cope with. Thirteen-year-old Jandell Marcano plays basketball for Hopkinton Middle School and wears the No. 24 because of Kobe. He was playing the video game NBA 2K as Kobe when he heard Bryant had died. “I was playing 2K, with him, then 10 minutes later I found out he died,” Jandell said. He was then devastated to learn Bryant’s daughter, Gianna, was also killed in the helicopter crash. She was the same age as Jandell. Elizabeth Booma...
Source: WBZ-TV - Breaking News, Weather and Sports for Boston, Worcester and New Hampshire - Category: Consumer Health News Authors: Tags: Boston News Health Syndicated Local Watch Listen Kobe Bryant Source Type: news
Date: Monday, 03 30, 2020; Speaker: Alex Keene, PhD, Associate Professor, Florida Atlantic University; Porter Neuroscience Bldg., 35a ; G620-640; Videocast Event
Source: NIH Calendar of Events - Category: American Health Source Type: events
AbstractPurpose of ReviewThis review explored the characteristics of interventions that use wearable activity monitors (WAM) and descriptively summarize their efficacy.Recent FindingsA total of 61 studies were included. Most of the WAM-based interventions (n = 58) were designed to improve physical activity (PA). Interventions targeting sedentary behavior (SB) were much less common (n = 12), and even less frequent were WAM-based sleep interventions (n = 3). Most studies tested the feasibility of WAM-based interventions. WAM-based interventions exhibited preliminary efficacy in incre...
Source: Current Epidemiology Reports - Category: Epidemiology Source Type: research
HOW TO sleep: Struggling to get the required amount of sleep each night is an uphill struggle for many people in the UK. While the situation may seem insurmountable, mounting evidence backs drinking certain herbal teas to get your sleep-cycle back into a healthy routine.
Source: Daily Express - Health - Category: Consumer Health News Source Type: news
Publication date: Available online 27 January 2020Source: Life SciencesAuthor(s): Zhi-Min Sun, Peng Guan, Li-Fei Luo, Lu-Yun Qin, Na Wang, Ya-Shuo Zhao, En-Sheng JiAbstractThe prominent feature of obstructive sleep apnea (OSA) is chronic intermittent hypoxia (CIH). Given the strong antioxidant ability of resveratrol against oxidative stress, we evaluated the potential protective effects of resveratrol on myocardial injury induced by CIH. Twenty-four rats were divided into normal control group, CIH group, CIH plus resveratrol treated (CIH + Res) group, and resveratrol treated control (Res) group. We proved that CIH impa...
Source: Life Sciences - Category: Biology Source Type: research
BACKGROUND: Shift work may lead to suboptimal sleep resulting in impaired alertness, and lowered performance levels, all of which can lead to medical errors. AIMS: To examine fatigue, sleepiness and behavioural alertness prospectively in a tertiary level A...
Source: SafetyLit - Category: International Medicine & Public Health Tags: Distraction, Fatigue, Chronobiology, Vigilance, Workload Source Type: news
Objective: To investigate the burden of sleep problems within the Spinal Cord injured (SCI) community with respect to the general population (GP) in Switzerland. The study further explored potential predictors for receiving treatment for sleep probl...
Source: SafetyLit - Category: International Medicine & Public Health Tags: Distraction, Fatigue, Chronobiology, Vigilance, Workload Source Type: news
Multidimensional causes of insufficient sleep among adolescents are not fully explored, particularly, the association between substance use and sleep duration. The 2017 Youth Risk Behavior Surveillance System (YRBSS) of high school students (N = 14,...
Source: SafetyLit - Category: International Medicine & Public Health Tags: Age: Adolescents Source Type: news
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