检索结果-南通市图书馆

A Hybrid Deep Learning Scheme for Multi-Channel sleep Stage Classification

Computers, Materials & Continua 2022年第4期71卷 889-905页

作者： Wei Pei Yan Li Siuly Siuly Peng Wen School of Sciences University of Southern QueenslandToowoomba4350Australia School of Mechanical and Electrical Engineering University of Southern QueenslandToowoomba4350Australia

sleep stage classification plays a significant role in the accurate diagnosis and treatment of sleep-related *** study aims to develop an efficient deep learning based scheme for correctly identifying sleep stages using multi-biological signals such as electroencephalography(EEG),electrocardiogram(ECG),electromyogram(EMG),and electrooculogram(EOG).Most of the prior studies in sleep stage classification focus on hand-crafted feature extraction *** hand-crafted feature extraction methods choose features manually from raw data,which is tedious,and these features are limited in their ability to balance efficiency and ***,most of the existing works on sleep staging are either single channel(a single-lead EEG may not contain enough information)or only EEG signal based which can not reveal more complicated physical features for reliable classification of various sleep *** study proposes an approach to combine Convolutional Neural Networks(CNNs)and Gated Recurrent Units(GRUs)that can discover hidden features from multi-biological signal data to recognize the different sleep stages *** the proposed scheme,the CNN is designed to extract concealed features from the multi-biological signals,and the GRU is employed to automatically learn the transition rules among different sleep *** that,the softmax layers are used to classify various sleep *** proposed method was tested on two publicly available databases:sleep Heart Health Study(SHHS)and ***’s University Hospital/University College Dublin sleep Apnoea(UCDDB).The experimental results reveal that the proposed model yields better performance compared to state-of-the-art *** proposed scheme will assist in building a new system to deal with multi-channel or multi-modal signal processing tasks in various applications.

关键词： Convolutional neural networks gated recurrent unit sleep stages multi-channel 1 Introduction

来源：

维普期刊数据库评论

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

The effect of Zhusha Anshen Wan decoction on states of the sleep-waking cycle in insomnic rats

引用

Neural Regeneration Research 2008年第4期3卷 398-401页

作者： Ying Wang Yang Jin Tingli Li Department of Pharmacology of Chinese Materia Medica Heilongjiang University of Traditional Chinese Medicine Harbin 150040Heilongjiang Province China

BACKGROUND： Sedative and hypnotic chemical drugs prolong the total-sleep time （TST） by a decrease in slow-wave sleep 2 （SWS2） and rapid-eye-movement sleep （REMS） and a relative increase in slow-wave sleep 1 （SWS1）. OBJECTIVE： To investigate the effect of the Chinese medicine Zhusha Anshen Wan at different doses on each sleeping state in insomnic rats, and to identify its mode of action in improving sleep. DESIGN, TIME AND SETTING： A randomized controlled study in rats. This study was performed in the Department of Pharmacology of Chinese Materia Medica, Heilongjiang University of Traditional Chinese Medicine during the period from January 2005 to July 2006. MATERIALS： Twenty-four male Wistar rats, weighing （220±5） g, were selected. The main components in Zhusha Anshen Wan, Cinnabaris, Rhizoma Coptidis, Radix Glycyrrhixae, Prepared Radix Glycyrhizae Radix Angelicae Sinensis, and Rehmannia Pride Rhizome, were authenticated by Dr Xiaowei Du, Professor of Pharmacology. ND-97 Digital Polysomnography was purchased from the Shanghai Medical Instrument High Technology Company and Footplate Electrical Stimulator from the Harbin Research Institute of Electrical Instruments. METHODS： Rats were deprived of sleep by using the Footplate Electrical Stimulator. Insomnic rats were randomized into high-, mid- and low-dose Zhusha Anshen Wan groups, eight rats in each group. Animals were administrated with different doses of Zhusha Anshen Wan （equal to crude drug 7.2, 3.6, 1.8 g/kg） consecutively for seven days. MAIN OUTCOME MEASURES： 30 minutes after the last administration, rats of each group suffered 8 hours foot-shocks while electroencephalography signals were recorded using Digital Polysomnography. Total time of waking （W）, SWS1, SWS2, REMS and TST were calculated for pre- and post-administration, respectively. RESULTS： All 24 rats were included in the statistical analysis of the results without any loss. In the low-dose Zhusha Anshen Wan group, SWS2 was increased significantly co

关键词： sleep electroencephalogram sleep stages Chinese traditional medicine

来源：

维普期刊数据库

同方期刊数据库评论

在线全文

学校读者我要写书评

暂无评论

Effect of Sini San Freeze-dried powder on sleep-waking cycle in insomnia rats

引用

Journal of Traditional Chinese Medicine 2014年第5期34卷 572-575页

作者： Xingke Yan Zeguo Zhang Fuju Xu Yuefeng Li Tiantian Zhu Chongbing Ma Anguo Liu Department of Pharmacy Department of AcupunctureGansu University of Traditional Chinese Medicine Key Laboratory of Pharmacology and Toxicology for Traditional Chinese Medicines of Gansu Province Department of Acupuncture Gansu University of Traditional Chinese Medicine

OBJECTIVE: To investigate the effects of the Sini San at different doses on each sleeping state[slow-wave sleep 1(SWS1), slow-wave sleep 2(SWS2), rapid-eye-movement(REM), wakefulness(W)] in insomnia rats and to identify its mode of ac-tion for improving ***: The insomnia rats were randomly divided into a high-, medium- or low-dose group of Sini San(equal to crude drug 8.8, 4.4, or 2.2 g/kg, respectively) for seven consecutive ***: Compared with pre-administration,SWS2 was significantly increased after administration of the low dose. Compared with pre-administration, W was significantly decreased and SWS1,SWS2, and the total sleeping time(TST) were markedly increased after administration of the medium dose. Compared with pre-administration, W was significantly decreased and SWS1, SWS2, rapid-eye-movement sleep, and TST were significantly longer after administration of the high dose. The effects of Sini San on sleep-wake cycle are ***: The results suggest that Sini San extends SWS1 and SWS2, which increases the total sleeping time.

关键词： sleep initiation and maintenance disor-ders Electroencephalography sleep stages Medi-cine, Chinese Traditional Sini San

来源：

维普期刊数据库

同方期刊数据库评论

在线全文

学校读者我要写书评

暂无评论

Slow wave sleep is associated withan increased prevalence of hypertension in patients with obstructive sleep apnea

Slow wave sleep is associated withan increased prevalence of...

引用

第五届中国西部睡眠医学大会暨重庆市心理卫生协会睡眠医学学术年会

作者： Rong Ren Ye Zhang Linghui Yang Junying Zhou Lu Tan Taomei Li Xiao Li Xiangdong Tang sleep Medicine Center West China HospitalSichuan University

Introduction Majority of obstructive sleep apnea(OSA) patients exhibit OSA events associated interrupt sleep(e.g.,decreased slow wave sleep(SWS) and rapid eye movement(REM) sleep,increased N1 and N2 sleep).There are variations in the activity ofautonomic nervous systems across different sleep stages,which may lead to thefluctuation of blood pressure(BP).In particular,an increased vagal tone and reduced sympathetic tone could result in lower BPduring *** intended toexamine whether different amounts of sleep stages,especially SWS,modifies the relationship between OSA and prevalent hypertension in a large number of OSA patients,and in separate male and female *** A total of 7107 patients with apnea-hypopnea index(AHI)≥ 5/h were recruited into this study(84.7%males,mean age=45.34±11.78 years).Hypertension was defined based either on direct blood pressure measures or on physician *** logistic regression models were adjusted for age,gender,body mass index(BMI),Epworth sleep scale,tobacco use,alcohol use,AHI,nocturnal oxygen desaturation,arousal index,sleep duration and *** A 53.8%was found to have hypertension in total observedOSA *** the multi-adjusted model and based on SWS percentage,OSA in quartiles 1(12.3%).A significant effect modification by gender on the SWS-hypertension association was found(p=0.004),such association was only existed in male,not in *** significant relationship between hypertension and other three sleep stages(N1,N2 and REM%) were obtained in total patients and in separated male and female *** Decreased SWS,not changes in N1,N2 and REM sleep,is associatedwith increased odds of prevalent hypertension in male OSA patients.

关键词： Obstructive sleep apnea slow wave sleep sleep stages hypertension

来源： cnki会议评论

在线全文

cnki会议

学校读者我要写书评

暂无评论

欢迎您,

建议与咨询留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

时间限定

文献类型

馆藏选择

核心期刊

语言

文献类型

帮助

文字说明：

检索规则说明：

检索范例：

分类表

所选分类

限定检索结果

文献类型

馆藏范围

日期分布

学科分类号

主题

机构

作者

语言

在线全文

在线全文

在线全文

在线全文

请选择保存的检索档案：

请选择收藏分类：

通借通还

欢迎您,

建议与咨询 留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

时间限定

文献类型

馆藏选择

核心期刊

语言

文献类型

帮助

文字说明：

检索规则说明：

检索范例：

分类表

所选分类

限定检索结果

文献类型

馆藏范围

日期分布

学科分类号

主题

机构

作者

语言

在线全文

在线全文

在线全文

在线全文

请选择保存的检索档案： 新增检索档案 确定 取消

请选择收藏分类： 新增自定义分类 确定 取消

通借通还

建议与咨询留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

请选择保存的检索档案：

请选择收藏分类：