Study Of Eeg Biofeedback Instrument And Sleep Stages

Sleep is an important physiological phenomenon, human sleep through the fatigue of nerve cells to restore normal physiological function, recovery mental and physical, a good sleep would have a healthy life. However, with the ever-accelerating pace of modern life, the pressure from all sectors of society is increasing, more and more human suffering from a variety of sleep-related illnesses. Insomnia is the most common sleep disorders, a great impact on human health. Therefore, the study of information contained in the sleep EEG, grasp the variation of the sleep cycle, effectively induce and control during sleep has an important significance for the diagnosis and treatment of sleep-related diseases.EEG biofeedback therapy is a new treatment for insomnia following drugs and physical therapy, it was EEG information feedback to the subjects, so that subjective consciousness to adjust their own electrical activity of the brain, to treatment and care effect. Stages of sleep EEG, looking for a new sleep stage characteristics, improve the accuracy of sleep stages, to provide additional tools for the analysis of sleep architecture and evaluation of insomnia treatment effect.The EEG biofeedback therapy is co-sponsored by the Affiliated Hospital of Sun Yat-sen University Professor Ruan Jingwen and Guangdong University of Technology, Associate Professor Zheng Rirong. EEG biofeedback instrument is based on the people in the sleep EEG delta waves and theta waves, extract the sleep EEG delta waves and theta waves by the electro-acupuncture to stimulate the acupuncture points, the induction of patients with brain delta wave and theta waves, so as to achieve the treatment of insomnia. First, from the medical waves to stimulate the body acupuncture points of view, the instrument used to stimulate acupoints of human body medical waves are delta waves and theta waves, which are extracted from human EEG is almost the same with the bioelectrical the human body can adapt to this the acupuncture stimulation pulse, common low-frequency waves always produce the body discomfort. Their pulse amplitude, frequency, duty cycle can be adjusted output fixed frequency, duty cycle stimulus wave, better able to avoid the phenomenon of electro-acupuncture tolerance. More importantly, the stimulus wave EEG biofeedback instrument is based on the sleep patterns of people from other low-frequency wave cannot be compared. Followed by development of EEG feedback treatment instrument operation is simple and convenient, and can through the keyboard to adjust the duty ratio, amplitude, frequency, and can display real-time waveform of output current. The effect on the best curative effect of sleep time is doubled than ordinary electro-acupuncture apparatus.Study on the staging of sleep by analyzing the sleep EEG of delta wave and theta wave, calculate for the sample entropy of delta waves and theta waves. Experimental results show that delta waves and theta waves sample entropy values can be used for sleep stages, provides a new characteristic variables for sleep stages and propose a new sleep staging analysis sleep EEG sleep stages; simultaneously, analysis in each stage of sleep EEG delta and theta waves of the sample entropy can be used to observe and analyze the treatment instrument for stimulating effect of EEG biofeedback.