CN114903500A - Electroencephalogram Theta wave detection system and method - Google Patents
Electroencephalogram Theta wave detection system and method Download PDFInfo
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Abstract
The invention provides a detection system and a detection method of an electroencephalogram Theta wave, which comprise the following steps: the electroencephalogram monitoring system comprises an electroencephalogram acquisition device, a graphene heating membrane and a temperature control chip; the graphene heating membrane is arranged on the body surface of the measured person; the temperature control chip is respectively connected with the electroencephalogram acquisition device and the graphene heating diaphragm; a plurality of electrodes of the electroencephalogram acquisition device are all arranged on the head of a tested person; the temperature control chip is used for controlling the graphene heating membrane to emit infrared radiation waves when the graphene heating membrane is heated to a preset temperature; the measured person is positioned in the radiation range of the graphene heating membrane; the infrared radiation wave is used for enhancing the frequency of the Theta wave generated by the tested person; the electroencephalogram acquisition device is used for generating an electroencephalogram of the radiated testee; the electroencephalogram includes Theta wave information generated by the subject. The graphene heating membrane has excellent middle and far infrared radiation characteristics, can increase the occurrence frequency of Theta waves generated by the brain of a tested person, and is beneficial to improving the detection efficiency and precision of the Theta wave electroencephalogram signals.
Description
Technical Field
The invention relates to the technical field of electroencephalogram signal detection, in particular to an electroencephalogram Theta wave detection system and method.
Background
In brain science research, brain waves are the result of collective movement of a large number of neurons, one of bioelectrical activities, and are the synthesis of postsynaptic potentials of neurons in the brain, the distribution of which on the scalp after conduction of the electric field through volume conductors (including cortex, skull, meninges and scalp) is recorded to form an electroencephalogram. There are five main types of brain waves: theta waves (Theta), Gamma waves (Gamma), Beta waves (Beta), Delta waves (Delta), and Alpha waves (Alpha). The electroencephalogram signal is a physiological electrical signal with weak voltage amplitude, and the acquisition result can be greatly influenced by external noise interference. Brain activity can be effectively monitored by detecting electroencephalogram signals, and further states of human body such as emotion and sleep can be effectively monitored. The electroencephalogram signals reflect the mental state of the human body, and the mental state of the human body can be adjusted through the amplitude and the frequency generated by the directional variety of the electroencephalogram signals.
In electroencephalogram signals, Theta waves are closely related to a brain peripheral system, which is helpful for deep memory and strengthening long-term memory, and the gate is called as a gate leading to memory and learning in the scientific community, so that more Theta waves are generated to strengthen the memory and learning ability of people. Theta rhythm frequency band is easy to appear under the conditions of sleep, light sleep, fuzzy consciousness and the like, the frequency of Theta waves of healthy adults is between 4 Hz and 8Hz, the frequency is mainly distributed in a top leaf area and is sine wave-like or high-frequency middle low-frequency wave-like on two sides, but the frequency is low, the waveform amplitude is low, the waveform is relatively gentle, the influence of clutter is easy to occur, and the detection difficulty is high. Therefore, how to generate Theta wave and realize efficient and simple detection still needs important invention creation.
Disclosure of Invention
The invention aims to provide an electroencephalogram Theta wave detection system and method, which can improve the efficiency and the precision of Theta wave detection.
In order to achieve the purpose, the invention provides the following scheme:
an electroencephalogram Theta wave detection system, comprising:
the electroencephalogram monitoring system comprises an electroencephalogram acquisition device, a graphene heating membrane and a temperature control chip;
the graphene heating membrane is arranged on the body surface of a measured person; the temperature control chip is respectively connected with the electroencephalogram acquisition device and the graphene heating diaphragm; a plurality of electrodes of the electroencephalogram acquisition device are all arranged on the head of the tested person;
the temperature control chip is used for controlling the graphene heating membrane to emit infrared radiation waves when the graphene heating membrane is heated to a preset temperature; the measured person is positioned in the radiation range of the graphene heating membrane; the infrared radiation wave is used for enhancing the frequency of the Theta wave generated by the testee;
the electroencephalogram acquisition device is used for generating an electroencephalogram of the radiated testee; the electroencephalogram includes Theta wave information generated by the subject.
Optionally, the graphene heating film emits infrared radiation of 6-14 μm when heated to a preset temperature.
Optionally, the thickness of the graphene heating film is 0.3 nm-200 μm.
Optionally, the detection system for the electroencephalogram Theta wave further comprises a temperature measurement module;
the temperature measuring module is connected with the temperature control chip;
the temperature measurement module is arranged at the position of the graphene heating diaphragm and is used for measuring the temperature of the graphene heating diaphragm.
Optionally, the electrode is made of one of silver, silver chloride, silver-plated silver chloride and silver-plated gold.
Optionally, a conductive adhesive is disposed between the electrode and the head of the subject.
Optionally, the conductive adhesive is one of hydrogel, conductive silver adhesive, silver copper conductive adhesive or nickel carbon conductive adhesive.
A detection method of electroencephalogram Theta waves is applied to the detection system of the electroencephalogram Theta waves, and comprises the following steps:
after the graphene heating membrane is opened, controlling the temperature of the graphene heating membrane to reach a preset temperature so as to emit infrared radiation waves; the tested person is positioned in the radiation range of the graphene heating membrane; the infrared radiation wave is used for enhancing the frequency of the Theta wave generated by the testee;
collecting an electroencephalogram of a tested person after radiation; the electroencephalogram includes Theta wave information generated by the subject.
According to the specific embodiment provided by the invention, the invention discloses the following technical effects:
the invention provides a detection system and a detection method of an electroencephalogram Theta wave, which comprise the following steps: the electroencephalogram monitoring system comprises an electroencephalogram acquisition device, a graphene heating membrane and a temperature control chip; the graphene heating membrane is arranged on the body surface of the measured person; the temperature control chip is respectively connected with the electroencephalogram acquisition device and the graphene heating diaphragm; a plurality of electrodes of the electroencephalogram acquisition device are all arranged on the head of the tested person; the temperature control chip is used for controlling the graphene heating membrane to emit infrared radiation waves when the graphene heating membrane is heated to a preset temperature; the measured person is positioned in the radiation range of the graphene heating membrane; the infrared radiation wave is used for enhancing the frequency of the Theta wave generated by the tested person; the electroencephalogram acquisition device is used for generating an electroencephalogram of the radiated testee; the electroencephalogram includes Theta wave information generated by the subject. According to the invention, the graphene heating membrane is arranged to promote the brain of the tested person to generate Theta waves, so that the person can relax and easily enter shallow sleep, and in addition, the signal intensity and the occurrence frequency are enhanced, thus being beneficial to the detection of Theta wave electroencephalogram signals and improving the efficiency and the precision of the Theta wave electroencephalogram signals.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed to be used in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings without inventive exercise.
Fig. 1 is a schematic structural diagram of a detection system of a brain-electrical Theta wave in embodiment 1 of the present invention;
fig. 2 is a schematic diagram of the fitting position of the brain wave test electrode in embodiment 2 of the present invention;
fig. 3 is a schematic view of heating a graphene heating film in embodiment 2 of the present invention;
fig. 4 is a spectrum of mid-far infrared radiation of the graphene film in example 2 of the present invention;
fig. 5 is a test chart of electroencephalogram Theta waves of a subject 1 without wearing a graphene heating film in embodiment 3 of the present invention;
fig. 6 is an electroencephalogram Theta wave test chart when the subject 1 wears the graphene heating film in embodiment 3 of the present invention;
fig. 7 is a statistical chart of the occurrence times of the electroencephalogram Theta waves when the subject 1 does not wear the graphene heating film in embodiment 3 of the present invention;
fig. 8 is a statistical chart of the occurrence times of the electroencephalogram Theta waves when the subject 1 wears the graphene heating film in embodiment 3 of the present invention;
fig. 9 is a comparison graph of brain electrical Theta wave data before and after the subject 1 wears the graphene heating film in embodiment 3 of the present invention;
fig. 10 is a comparison graph of the power spectral density of brain waves before and after the graphene heating film is worn by the subject 1 in embodiment 3 of the present invention;
fig. 11 is a brain electrical Theta wave test chart of the subject 2 wearing a comparative metal heating film in example 3 of the present invention;
fig. 12 is a statistical chart of the number of occurrences of brain electric Theta waves of a subject 2 wearing a comparative metal heating film in example 3 of the present invention;
FIG. 13 is a statistical chart of the number of occurrences of brain electrical Theta waves after hot-water hot compress of a subject 3 according to example 3 of the present invention;
fig. 14 is a graph showing the comparison of the frequency of appearance of the Theta wave effect of the subject using water, metal, and graphene film in example 3 of the present invention.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be obtained by a person skilled in the art without making any creative effort based on the embodiments in the present invention, belong to the protection scope of the present invention.
The invention aims to provide an electroencephalogram Theta wave detection system and method, which can improve the efficiency and the precision of Theta wave detection.
In order to make the aforementioned objects, features and advantages of the present invention comprehensible, embodiments accompanied with figures are described in further detail below.
Example 1
As shown in fig. 1, the present embodiment provides a detection system for electroencephalogram Theta waves, including:
the electroencephalogram monitoring system comprises an electroencephalogram acquisition device, a graphene heating membrane and a temperature control chip;
the graphene heating membrane is arranged on the body surface of the measured person; the temperature control chip is respectively connected with the electroencephalogram acquisition device and the graphene heating diaphragm; a plurality of electrodes of the electroencephalogram acquisition device are all arranged on the head of the tested person; specifically, the fractal-structure graphene film is embedded in the graphene heating film with the thickness of 50 micrometers and the heating area of 100 square centimeters, the fractal structure is the same as the graphene heat dissipation film with the fractal structure recorded in the patent No. 201810631139.4, and the fractal-structure graphene film is electrified to generate medium and far infrared waves so as to heat a human body, so that the strength of Theta waves generated by a user is improved, the signal-to-noise ratio and the occurrence frequency of effective signals are increased, the detection effect of an auxiliary brain wave measuring instrument is achieved, and the efficiency and the precision of the auxiliary brain wave measuring instrument are improved. The system comprises a grounding electrode, a balancing electrode, a first brain electricity receiving electrode, a second brain electricity receiving electrode, a third brain electricity receiving electrode, conductive adhesive, an electroencephalograph, a graphene heating membrane and a temperature control chip. The graphene heating film emits infrared wave radiation of 6-14 microns when heated to a preset temperature. The thickness of the graphene heating film is 0.3 nanometer-200 micrometers.
In addition, the material of the electrode is one of silver, silver chloride, silver-plated silver chloride or silver-plated gold. Conductive adhesive is arranged between the electrode and the head of the tested person. The conductive adhesive is one of hydrogel, conductive silver adhesive, silver-copper conductive adhesive or nickel-carbon conductive adhesive.
The temperature control chip is used for controlling the graphene heating membrane to emit infrared radiation waves when the graphene heating membrane is heated to a preset temperature; the tested person is positioned in the radiation range of the graphene heating membrane; the infrared radiation wave is used for enhancing the frequency of the Theta wave generated by the tested person; the electroencephalogram acquisition device is used for generating an electroencephalogram of the radiated testee; the electroencephalogram includes Theta wave information generated by the subject.
The detection system for the electroencephalogram Theta wave provided by the embodiment further comprises a temperature measurement module; the temperature measuring module is connected with the temperature control chip; the temperature measurement module is arranged at the graphene heating diaphragm and used for measuring the temperature of the graphene heating diaphragm.
The fractal structure graphene film in the graphene heating film has the advantages of large specific surface area, violent intermolecular electron thermal motion and excellent medium and far infrared radiation characteristics, can convert more electric energy into medium and far infrared rays, is radiated into human skin to promote blood circulation and cell activity of brain, covers 6-14 mu m infrared radiation, promotes the brain of a person to be tested to generate Theta waves, enables the person to relax and easily enter shallow sleep, enhances the signal intensity and the occurrence frequency, is favorable for detecting brain electrical signals of the Theta waves, and improves the efficiency and the precision of the brain electrical signals of the Theta waves.
Example 2
The embodiment provides a method for detecting an electroencephalogram Theta wave, which is applied to a system for detecting the electroencephalogram Theta wave as described in embodiment 1, and the method comprises the following steps:
after the graphene heating membrane is opened, controlling the temperature of the graphene heating membrane to reach a preset temperature so as to emit infrared radiation waves; the measured person is positioned in the radiation range of the graphene heating membrane; the infrared radiation wave is used for enhancing the frequency of the Theta wave generated by the tested person;
collecting an electroencephalogram of a tested person after radiation; the electroencephalogram includes Theta wave information generated by the subject.
In FIG. 2, A1-A2 represent the human ear; fp1, Fp2, F7, F8, F3, F4, Fz, Cz, Pz, C3, C4, P3, P4, T3, T4, T5, T6, O1, and O2 each indicate an electrode placement position; front, Nasion and INnion respectively represent a forehead, a Nasion and an inion, a grounding electrode and a balancing electrode are connected with the forehead of the brain, and a first brain electricity receiving electrode, a second brain electricity receiving electrode and a third brain electricity receiving electrode are connected with the brain in a fitting mode through conductive adhesive. The grounding electrode is attached to a hindbrain O1 position shown in the figure, the balancing electrode is connected to an O2 position, the first brain electricity receiving electrode and the second brain electricity receiving electrode are respectively attached to a position F3 and a position F4 (located in the front skull) marked in the electrode attachment schematic diagram 2 through conductive adhesive, the third brain electricity receiving electrode is connected to a vertex center position Cz position, brain electricity Theta wave signals are transmitted to an electroencephalograph machine in real time for analysis and processing, and the electroencephalograph machine is provided with an adjusting gear for a user to control a temperature control chip in real time according to the collected Theta wave signals so as to adjust the temperature of the graphene heating diaphragm. The graphene heating film is a fractal structure graphene film, the thickness of the fractal structure graphene film is 50 micrometers, the heating area is 100 square centimeters, and the graphene film is electrified to generate middle and far infrared radiation so as to heat the skin of the living body. The temperature control chip controls the heating power of the graphene heating film, and the heating temperature is adjustable at 40-60 ℃. As shown in fig. 3, the graphene heating film is arranged on the neck and attached to the skin, so that the infrared radiation can effectively promote the blood circulation of the brain, enhance the Theta wave intensity of the brain, facilitate the detection of the Theta wave by an electroencephalograph, and improve the efficiency and the precision of the Theta wave. The graphene heating film and the temperature control chip are arranged on the surface of a body, and the method includes but is not limited to the step of combining the graphene heating film and/or the temperature control chip into clothes such as a scarf, a hat or clothes, and the like, so that a human body can comfortably receive middle and far infrared radiation; the spectrum of far infrared radiation in the graphene film is shown in fig. 4.
The system operation flow in this embodiment is as follows:
1) the graphene heating film is connected with the temperature control chip on a circuit, so that the power supply can normally supply power to the graphene heating film and the output is stable;
2) the method comprises the steps that a graphene heating membrane is connected with a temperature control chip and then is placed on the body surface of a tested person, a scarf is used as a carrier in the embodiment and comprises the scarf, a waistband and the like in practical use, the scarf is worn on the neck of a user and is attached to the skin as much as possible, the temperature control chip is started, the user can obviously feel the temperature rise of the scarf and stops at a set value required by testing, and comfortable experience is provided for the tested person;
3) starting the electroencephalogram detection equipment, and debugging the equipment to enable the equipment to enter a working state;
4) cleaning the corresponding positions of the two sides of the forehead of the tested person by using a disinfectant wet tissue, then coating conductive adhesive on two electrodes (grounding electrode and balancing electrode) marked as GND and REF, respectively attaching the two electrodes to two positions of a hindbrain cleaning position O1 or a position O2 without distinguishing the left and the right, and fixing the two electrodes by using adhesive tapes;
5) cleaning the corresponding position (Cz position in figure 2) at the center of the top of the head of the tested person by using a disinfection wet tissue, then coating conductive adhesive on the electroencephalogram receiving electrode marked as Cz, respectively attaching the conductive adhesive to the cleaned position of the back brain, and finally fixing the position by using adhesive tapes;
6) cleaning corresponding positions (F3 and F4 in figure 2) at two sides of the top of the head of a tested person by using a disinfection wet tissue, then coating conductive adhesive on two brain electricity receiving electrodes marked as F3 and F4, respectively attaching the two brain electricity receiving electrodes to the two cleaned positions, wherein the electrode marked as F3 is on the left side, and finally fixing the two brain electricity receiving electrodes by using adhesive tapes;
7) after the above steps are completed, the tested person closes the eyes, and with regular deep breathing (frequency of 13-15 times/minute), the tested person clicks the start key of the test software to start the test, and after the test is finished, data is recorded and analyzed.
Example 3:
the following operations are performed for the subject 1, the subject 2, the subject 3, and the subject 4, respectively:
subject 1
1) Starting the electroencephalogram detection equipment, and debugging the equipment to enable the equipment to enter a working state;
2) cleaning the forehead corresponding positions of the tested person 1 by using a disinfectant wet tissue, then coating conductive adhesive on two electrodes marked as GND and REF, respectively attaching the two electrodes to two positions of the hindbrain cleaned O1 and O2, and fixing the two electrodes by using adhesive tapes without distinguishing the left and the right;
3) cleaning the corresponding position of the center of the top of the head of the tested person 1 by using a disinfection wet tissue, then coating conductive adhesive on the Cz electroencephalogram receiving electrode, attaching the conductive adhesive to the cleaned position, and finally fixing the conductive adhesive by using adhesive tapes;
4) cleaning the corresponding positions of the two sides of the top of the head of the tested person 1 by using a disinfectant wet tissue, then coating conductive adhesive on the two electrodes with the numbers of F3 and F4, respectively attaching the two electrodes to the two positions of cleaned F3 and F4, and fixing the electrode with the number of F3 on the left side by using adhesive tapes;
5) the tested person 1 closes eyes and makes regular deep breathing, clicks a start key of the test software to start testing, and observes the electroencephalogram Theta wave of the tested person at the moment, and only a small amount of Theta wave can be seen, the occurrence frequency is low, and the Theta wave is not obvious;
6) after the data recording is finished, the test is suspended, and the graphene heating scarf with the thickness of 50 micrometers and the heating area of 100 square centimeters is worn on the neck of a user and is attached to the skin as much as possible;
7) further, the temperature control chip is started, and a user can obviously feel that the temperature of the scarf rises to 50 ℃;
8) the subject 1 closes his eyes and clicks the start key of the test software to start the test.
The difference between the tested person 2 and the tested person 1 is that after the data recording is finished, the test is suspended, and the compared metal copper film heating scarf is worn on the neck of a user and is attached to the skin as much as possible; the temperature control chip is started, and a user can obviously feel that the temperature of the scarf rises to 50 ℃;
the difference between the tested person 3 and the tested person 1 is that after the data recording is finished, the test is suspended, and the compared hot water with the temperature of 50 ℃ is hot compressed on the neck of a user and is attached to the skin as much as possible;
the difference between the tested person 4 and the tested person 1 is that after data recording is finished, the test is suspended, and the graphene heating scarf with the thickness of 100 micrometers and the heating area of 200 square centimeters is worn on the neck of a user and is attached to the skin as much as possible; the temperature control chip is started, and a user can obviously feel that the temperature of the scarf rises to 55 ℃;
the abscissa in fig. 5 to 14 represents time; FIGS. 5 and 6 show the amplitude values on the ordinate; (ii) a The ordinate in fig. 7-9 and fig. 12-13 each represent Theta wave duration in seconds. FIG. 10 is a graph showing power spectral density on the ordinate; FIG. 11 is a graph with waveforms on the ordinate; the ordinate in fig. 14 represents the number of occurrences of θ waves; as shown in fig. 5-9, the frequency of occurrence of Theta waves after heating was significantly increased, and Theta waves were occurred 2 times in total for a total of 1 minute measured before heating, and reached 6 times for a total of 1 minute measured after 3 minutes of heating. Further analysis shows that the average duration and the total duration of Theta wave appear in the heating process are obviously improved compared with those before heating. According to fig. 10, it can be found that the power spectral density of Theta wave is also obviously improved after heating. The fractal structure graphene membrane is used, has large specific surface area, violent electron thermal motion among branches and excellent middle and far infrared radiation characteristics, can convert more electric energy into middle and far infrared rays, is radiated into human skin to promote blood circulation and cell activity of brain, covers 6-14 mu m infrared radiation of human body, promotes the brain of a person to be tested to generate Theta waves, enhances the signal intensity and the occurrence frequency, is beneficial to the detection of Theta wave electroencephalogram signals, and improves the detection efficiency and precision. In order to prove that the medium-far infrared heating can effectively promote the generation of the electroencephalogram Theta wave. An experimental control group is designed in the embodiment, comparison is carried out on Theta waves before and after the tested person 2 wears the compared metal copper film heating scarf, and according to the results of fig. 11-12, compared with the medium-far infrared radiation of graphene, the metal film can also generate infrared radiation but is concentrated in a near-infrared band and does not completely accord with the infrared radiation of a human body in a band of 6-14 microns, and improvement on the generation of the Theta waves is limited. Within 1 minute of measurement time after heating for 3 minutes, the frequency of appearance of Theta waves reaches 3 times, so that the promotion effect of the common metal film is far smaller than that of the graphene film. In this example, an experimental control group was designed, and by comparing Theta waves before and after hot compression of the subject 3 with hot water, it can be seen from fig. 13 that, compared with the medium and far infrared radiation of graphene, hot water has only heat conduction and no infrared radiation, and has no promotion effect on the generation of Theta waves. Within a measurement time of 1 minute after 3 minutes of heating, Theta waves appear only 2 times as well, and thus hot water hot compress does not promote the effect. The heating effect pairs of water, metal, graphene film are shown in fig. 14. The graphene film heating scarf with different parameters worn by the tested person 4 is further tested, and the application requirements on the temperature between different individuals are slightly different.
In the present specification, the embodiments are described in a progressive manner, each embodiment focuses on differences from other embodiments, and the same and similar parts among the embodiments are referred to each other. For the system disclosed by the embodiment, the description is relatively simple because the system corresponds to the method disclosed by the embodiment, and the relevant points can be referred to the method part for description.
The principles and embodiments of the present invention have been described herein using specific examples, which are provided only to help understand the method and the core concept of the present invention; meanwhile, for a person skilled in the art, according to the idea of the present invention, the specific embodiments and the application range may be changed. In summary, this summary should not be construed to limit the present invention.
Claims (8)
1. A detection system of brain electricity Theta ripples, its characterized in that includes:
the electroencephalogram monitoring system comprises an electroencephalogram acquisition device, a graphene heating membrane and a temperature control chip;
the graphene heating membrane is arranged on the body surface of a measured person; the temperature control chip is respectively connected with the electroencephalogram acquisition device and the graphene heating diaphragm; a plurality of electrodes of the electroencephalogram acquisition device are all arranged on the head of the tested person;
the temperature control chip is used for controlling the graphene heating membrane to emit infrared radiation waves when the graphene heating membrane is heated to a preset temperature; the measured person is positioned in the radiation range of the graphene heating membrane; the infrared radiation wave is used for enhancing the frequency of the Theta wave generated by the testee;
the electroencephalogram acquisition device is used for generating an electroencephalogram of the radiated testee; the electroencephalogram includes Theta wave information generated by the subject.
2. The electroencephalogram Theta wave detection system according to claim 1, wherein the graphene heating membrane emits infrared radiation of 6-14 μm when being heated to a preset temperature.
3. The electroencephalogram Theta wave detection system according to claim 1, wherein the thickness of the graphene heating film is 0.3 nanometers to 200 micrometers.
4. The electroencephalogram Theta wave detection system according to claim 1, characterized in that the electroencephalogram Theta wave detection system further comprises a temperature measurement module;
the temperature measuring module is connected with the temperature control chip;
the temperature measurement module is arranged at the position of the graphene heating diaphragm and is used for measuring the temperature of the graphene heating diaphragm.
5. The electroencephalogram Theta wave detection system according to claim 1, wherein the electrode is made of one of silver, silver chloride, silver-plated silver chloride and silver-plated gold.
6. The electroencephalogram Theta wave detection system according to claim 1, wherein a conductive adhesive is arranged between the electrode and the head of the subject.
7. The electroencephalogram Theta wave detection system according to claim 6, wherein the conductive adhesive is one of hydrogel, conductive silver adhesive, silver-copper conductive adhesive or nickel-carbon conductive adhesive.
8. A detection method of electroencephalogram Theta waves, which is applied to the detection system of electroencephalogram Theta waves according to any one of claims 1-7, and comprises the following steps:
after the graphene heating membrane is opened, controlling the temperature of the graphene heating membrane to reach a preset temperature so as to emit infrared radiation waves; the tested person is positioned in the radiation range of the graphene heating membrane; the infrared radiation wave is used for enhancing the frequency of the Theta wave generated by the testee;
collecting an electroencephalogram of a tested person after radiation; the electroencephalogram includes Theta wave information generated by the subject.
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