Method and device for measuring electroencephalo of human body having mental pressure and for relaxation training

Abstract

The invention relates to a method and device for measuring electroencephalo of a human body having mental pressure and for relaxation training. The device provided by the invention comprises an electroencephalo collecting electrode, a preprocessing unit, an analog-to-digital conversion unit, a central control unit and earphones. The method provided by the invention comprises the steps of: firstly, collecting initial electroencephalo data; secondly, calculating SI(0); thirdly, providing guiding respiratory parameters; fourthly, recording the respiratory parameters; fifthly, collecting electroencephalo data; sixthly, calculating SI; seventhly, judging whether SI is decreased or not; eighthly, keeping M(i) constant; and ninthly, adjusting the respiratory parameters. The method provided by the invention can better reflect the mental stress of a user and have high degree of accuracy and good real-time performance; the device provided by the invention has fewer electrodes and is convenient for installation; and a collection circuit and other hardware structure parts are simple, and the manufacturing cost is very low. According to the method and device provided by the invention, a noninvasive method for quantificationally assessing mental stress or mental pressure and a mental pressure relaxation training device based on the method are realized, which have certain easing function on mental pressure of the human body.

Description

technical field [0001] The invention belongs to the technical field of biomedicine, and further relates to a method and a device for EEG measurement of human mental stress and relaxation training in the technical field of medical signal collection and data processing. The method of the invention is to quantitatively determine the stress index for measuring the mental stress by extracting the non-invasive electroencephalogram signal from the human brain and analyzing the single-channel electroencephalogram. According to the changing trend of the pressure index, the device of the present invention adaptively guides the subject to breathe with more reasonable breathing parameters, enhances the activity of the parasympathetic nerve through controlled breathing, and finally achieves the reduction of the subject's stress with the cooperation of other neural mechanisms. The purpose of stress index, relaxation, and anxiety removal. Background technique [0002] With the rapid devel...

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Problems solved by technology

[0007] The common deficiency that the measuring method of above-mentioned two kinds of patent technologies exists is: the first, usually mental stress can act on people's central nervous system ( central nervous system , CNS) and the autonomic nervous system ANS, however, the feelings and responses of the ANS are passive and subordinate

Second, although inhalation and exhalation of breathing do cause changes in heart rate to form the RSA phenomenon, how this is related to mental stress remains to be studied

Clearly, measuring RSA to determine mental stress is not entirely reasonable

[0008] The common shortcomings of the measurement and training devices provided by the above two patented technologies are: because many people have arrhythmia in various situations such as premature beats, and various interferences in the acquisition of signals, extracting RSA from HRV signals is actually a very unreliable

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