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Hypnotic state electroencephalogram signal extracting method and system

An EEG signal and hypnotic state technology, which is applied in medical science, sensors, diagnostic recording/measurement, etc., can solve problems such as ineffective extraction of hypnotic EEG signals, achieve self-adaptive adjustment, improve resolution, and effectively and the effect of accurately extracting

Active Publication Date: 2016-10-26
GUANGZHOU SHIYUAN ELECTRONICS CO LTD
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Problems solved by technology

[0005] Based on this, it is necessary to provide an effective and accurate hypnotic state EEG signal extraction method and system for the current problem of not being able to effectively extract hypnotic EEG signals

Method used

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  • Hypnotic state electroencephalogram signal extracting method and system
  • Hypnotic state electroencephalogram signal extracting method and system
  • Hypnotic state electroencephalogram signal extracting method and system

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Embodiment Construction

[0022] like figure 1 Shown, a method for extracting EEG signals in a hypnotic state, comprising steps:

[0023] S100: Collect the initial EEG signal in the hypnotic state, and perform preset frequency multiplication notch processing on the initial EEG signal in the hypnotic state to obtain a pre-processed EEG signal.

[0024] The initial EEG signals in the hypnotic state can be collected by existing equipment, for example, by an EEG machine. The hypnotic EEG signal collected by the EEG machine usually contains power frequency noise interference of a certain frequency, and there is no obvious EEG signal fluctuation pattern. After analysis, the initial hypnotic EEG signal not only contains power frequency noise, but also has a certain frequency Harmonic noise of these hypnotic state EEG initial signals are pre-processed by pre-processing EEG signals whose curves present obvious EEG fluctuation shapes.

[0025] S200: According to the correlation between the wavelet function and...

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Abstract

The invention provides a hypnotic state electroencephalogram signal extracting method and system. The method comprises the following steps of collecting a hypnotic state electroencephalogram initial signal, and performing preset-multiplication-frequency trap wave processing; selecting a wavelet function used for extracting a hypnotic state electroencephalogram signal according to the correlation between the wavelet function and the preprocessed electroencephalogram signal; selecting the center frequency-band width ratio of the wavelet function in an adaptive optimization way; and extracting the hypnotic state electroencephalogram signal from the preprocessed electroencephalogram signal through the optimized wavelet function. In the process, the center frequency-band width ratio is optimized in an adaptive way; the self-adapting regulation of the wavelet coefficient is realized; the resolution ratio of the wavelet transform is improved; and the hypnotic state electroencephalogram signal can be effectively and accurately extracted.

Description

technical field [0001] The invention relates to the technical field of signal extraction, in particular to a method and a system for extracting hypnotic EEG signals. Background technique [0002] Sleep is a very important and indispensable physiological need for human beings. In recent years, with the acceleration of people's life rhythm, the increase of work pressure, lack of exercise or other causes of irritability and physical and mental anxiety, more and more patients with insomnia have seriously affected people's physical and mental health, making work efficiency and Decreased quality of life. [0003] Hypnosis has become an extremely important method for the clinical treatment of insomnia and sleep disorders. Alone or in combination with other psychotherapy, it can relieve many physical and mental symptoms. Many studies have found that individuals under hypnosis have increased EEG Theta waves and increased amplitude, and individuals with high hypnotic susceptibility ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A61B5/0476
CPCA61B5/4806A61B5/369
Inventor 胡静
Owner GUANGZHOU SHIYUAN ELECTRONICS CO LTD
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