CN104783788A - Brain wave induction control method and device - Google Patents
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Abstract
The invention discloses a brain wave induction control method and device. Brain wave signals of a human body are detected in the brain wave induction process, so that a feedback loop of optical signals and human body responses (brain wave signals) is formed. According to feedback, stimulation is regulated step by step, and the brain wave induction accuracy can be improved.
Description
Technical field
The present invention relates to biomedical engineering technology, be specifically related to a kind of E.E.G Induction Control method and E.E.G inducing device.
Background technology
When human body receives the constant stimulation of external environment condition medium frequency (sound, light etc.), brain just can produce the response with environmental stimuli frequency or its harmonic wave same frequency.When human body receives the visual stimulus of certain frequency, just corresponding visual evoked potential can be produced in cerebral cortex particularly brain occipital lobe region.Steady State Visual Evoked Potential (Steady State Visually Evoked Potential, SSVEP) is the one of brain resonance effect.Steady State Visual Evoked Potential has comparatively periodically obvious and comprises stimulus frequency and harmonic components thereof, therefore in the frequency spectrum of Steady State Visual Evoked Potential, can find obvious peak value at stimulus frequency and harmonic frequency place thereof.
E.E.G (the Electroencephalograph of human brain, EEG) be that some spontaneous rhythmic neuroelectricities are movable, its frequency variation scope is between 1-30 time per second, usually can be five wave bands according to frequency partition, i.e. δ (1-3Hz), θ (4-8Hz), α (8-13Hz), β (14-30Hz) and γ (more than 30).δ ripple appears at extremely tired and deep sleep usually; θ ripple occurs receiving under setback and depressive state usually; Under the wavy state of α, the human body energy of people expends minimum, and the energy that relative brain obtains is higher, and brain running will be quicker, smooth and easy, sharp.α ripple is considered to people's study and the best E.E.G state thought deeply; β ripple, then E.E.G state when being anxiety, pressure, brain fag; The less appearance of γ ripple, belongs to abnormal (as epilepsy) state usually.
View-based access control model Evoked ptential carries out E.E.G induction, can the emotion of mediator make the brain of human body can enter corresponding state.But existing E.E.G inducing device is all adopt fixed mode stimulus signal, and due to the modulation scheme of human brain, people is under different emotional state, and brain all can be different to the reaction that stimulus signal produces.This just causes the practical application effect of this series products uneven, even can obtain the result of adverse effect.
Summary of the invention
In view of this, the invention provides a kind of E.E.G Induction Control method and E.E.G inducing device, monitoring human body brain wave signal, forms the feedback control loop of optical signal and human response, to improve the accuracy of E.E.G induction.
First aspect, the invention provides a kind of E.E.G Induction Control method, comprising:
Obtain the brain wave signal of human body;
The optical signal parameters for carrying out stimulus to the sense organ is regulated to tend to target E.E.G characteristic to make described brain wave signal according to described brain wave signal;
Wherein, described adjustment optical signal parameters comprises adjustment wavelength of optical signal, light signal strength, optical signal relative at least one item in the angle of incidence of human eye.
Preferably, describedly optical signal parameters is regulated to comprise according to described brain wave signal:
Perform and increase wavelength of optical signal, reduce light signal strength, increase optical signal relative at least one item in the angle of incidence of human eye to reduce the frequency of described brain wave signal and to increase the amplitude of described brain wave signal;
Perform and reduce wavelength of optical signal, increase light signal strength, reduce optical signal relative at least one item in the angle of incidence of human eye to increase the frequency of described brain wave signal and to reduce the amplitude of described brain wave signal.
Preferably, optical signal parameters is regulated to comprise according to brain wave signal:
Regulate described optical signal parameters in the first way and keep the scheduled time;
When described brain wave signal trend target E.E.G characteristic variations being detected, continue to keep regulating described optical signal with current way, otherwise, adjust described optical signal parameters in a second manner;
Described second method is different from first method.
Preferably, described method also comprises:
When detecting that brain wave signal parameter exceeds secure threshold, stop exporting described optical signal.
Preferably, described method also comprises:
The music file playing coupling is chosen according to described brain wave signal.
Second aspect, provides a kind of E.E.G inducing device, comprising:
E.E.G checkout gear, for detecting the brain wave signal obtaining human body;
Optical signal output device, for exporting the optical signal for carrying out stimulus to the sense organ;
Control device, regulates described optical signal to tend to target E.E.G characteristic to make described brain wave signal for controlling described optical signal output device according to described brain wave signal;
Wherein, described control device controls described optical signal output device adjustment wavelength of optical signal, light signal strength, optical signal relative at least one item in the angle of incidence of human eye.
Preferably, described control device controls described optical signal output device and performs and increase wavelength of optical signal, reduce light signal strength, increase optical signal relative at least one item in the angle of incidence of human eye to reduce the frequency of described brain wave signal and to increase the amplitude of described brain wave signal; Or control described optical signal output device to perform and reduce wavelength of optical signal, increase light signal strength, reduce optical signal relative at least one item in the angle of incidence of human eye to increase the frequency of described brain wave signal and to reduce the amplitude of described brain wave signal.
Preferably, described control device regulates described optical signal in the first way for controlling described optical signal output device and keeps the scheduled time, and when described brain wave signal trend target E.E.G characteristic variations being detected, continue to keep regulating described optical signal with current way, otherwise, adjust described optical signal in a second manner, described second method is different from first method.
Preferably, described control device detect brain wave signal parameter control when exceeding secure threshold described optical signal output device stop output optical signal.
Preferably, also comprise:
Sound signal outputting device, for exporting the acoustical signal for carrying out stimulus to the sense organ;
Wherein, described control device is used for the music file choosing coupling according to described brain wave signal, controls described sound signal outputting device and plays.
The third aspect, provides a kind of control device, comprising:
Acquisition module, for obtaining the brain wave signal of human body;
Adjustment module, regulates the optical signal parameters for carrying out stimulus to the sense organ to tend to target E.E.G characteristic to make described brain wave signal according to described brain wave signal;
Wherein, described adjustment optical signal parameters comprises adjustment wavelength of optical signal, light signal strength, optical signal relative at least one item in the angle of incidence of human eye.
Fourth aspect, provides a kind of control device, and for controlling the optical signal that optical signal output device exports, described control device comprises processor, and described processor is configured to perform the instruction comprising following operation:
Obtain the brain wave signal of human body;
Described brain wave signal regulates the optical signal parameters for carrying out stimulus to the sense organ to tend to target E.E.G characteristic to make described brain wave signal;
Wherein, described adjustment optical signal parameters comprises adjustment wavelength of optical signal, light signal strength, optical signal relative at least one item in the angle of incidence of human eye.
By the brain wave signal of human body in E.E.G Induction Process, form the feedback control loop of optical signal and human response's (brain wave signal), progressively adjust stimulation according to feedback, the accuracy of E.E.G induction can be improved.
Accompanying drawing explanation
By referring to the description of accompanying drawing to the embodiment of the present invention, above-mentioned and other objects, features and advantages of the present invention will be more clear, in the accompanying drawings:
Fig. 1 is the schematic diagram of the E.E.G inducing device of the embodiment of the present invention;
Fig. 2 is the flow chart of the E.E.G Induction Control method of the embodiment of the present invention;
Fig. 3 is the flow chart of the optical signal control method of the embodiment of the present invention;
Fig. 4 is the flow chart of the another kind of optical signal control method of the embodiment of the present invention;
Fig. 5 is the typical structure schematic diagram of the control device of the embodiment of the present invention.
Detailed description of the invention
Based on embodiment, present invention is described below, but the present invention is not restricted to these embodiments.In hereafter details of the present invention being described, detailedly describe some specific detail sections.Do not have the description of these detail sections can understand the present invention completely for a person skilled in the art yet.In order to avoid obscuring essence of the present invention, known method, process, flow process, element and circuit do not describe in detail.
In addition, it should be understood by one skilled in the art that the accompanying drawing provided at this is all for illustrative purposes, and accompanying drawing is not necessarily drawn in proportion.
Unless the context clearly requires otherwise, similar words such as " comprising ", " comprising " otherwise in whole description and claims should be interpreted as the implication that comprises instead of exclusive or exhaustive implication; That is, be the implication of " including but not limited to ".
In describing the invention, it is to be appreciated that term " first ", " second " etc. are only for describing object, and instruction or hint relative importance can not be interpreted as.In addition, in describing the invention, except as otherwise noted, the implication of " multiple " is two or more.
Fig. 1 is the schematic diagram of the E.E.G inducing device of the embodiment of the present invention.As shown in Figure 1, described E.E.G inducing device 1 comprises E.E.G checkout gear 11, optical signal output device 12 and control device 13.
E.E.G checkout gear 11 is set to the head that can be worn at human body, with contact human skin, for detecting the brain wave signal obtaining human body.E.E.G checkout gear 11 can comprise one or more dry type active electrode 11a (sensor) of the E.E.G for detecting user.This one or more electrode can be adjacent to the skin after the forehead of user and/or forehead sidepiece and/or proximal subscribers ear.One of them electrode can be used by as ground electrode.Electrode 11a uses metal manufacture usually.It is one or more that E.E.G checkout gear 11 analogue signal also typically comprised for gathering electrode 11a is carried out in the parts such as parts (amplifier), analogue signal wave filter, digital to analog converter (ADC), digital signal filter, digital signal processor of amplifieroperation.Thus, the brain wave signal that can gather for electrode 11a carries out necessary process and can be further processed to make it.In some cases, an above-mentioned parts part can be arranged in the part that human body wears, and another part is worn part in the mode be separated with human body and is separated, and is connected carry out signal transmission between two parts by bus or other wire/wireless communication.
Preferably, E.E.G checkout gear 11 also can become one, and can wireless communication unit be comprised, wirelessly collection and treated brain wave signal are transmitted to control device 13 by (such as based on the technology such as bluetooth or 2.4GHz or Zigbee).
Optical signal output device 12 is for exporting the optical signal for carrying out stimulus to the sense organ.Optical signal output device 12 can according to the parameter of the regulating and controlling output optical signal of control device 13, and it can be luminescence component or display or the projection arrangement etc. of one group of Parameter adjustable joint.
Optical signal output device 12 can be set to one with E.E.G checkout gear 11, be worn on human body head, and be positioned near eye, to facilitate to the optical signal (it can such as with the form of viewed spectacles be arranged at the front of human eye) of human eye projection for carrying out stimulus to the sense organ.If this timed unit 13 is arranged independent of E.E.G checkout gear 11 and optical signal output device 12, then optical signal output device 12 needs to be connected to accept it by wire/wireless communication parts with control device 13 and controls, if desired its can with E.E.G checkout gear 11 common user communication parts reception control signal.
On the other hand, optical signal output device 12 also can be set to one with control device 13.When control device 13 is for carrying conventional data blood processor (the such as panel computer or mobile communication terminal) of computer program, it can be display.
On the other hand, optical signal output device 12 also can be arranged independent of E.E.G checkout gear 11 or control device 13, and its atmosphere that can be set to (in automobile or in room) in enclosed space regulates lamp.
Control device 13 regulates optical signal parameters to tend to target E.E.G characteristic to make described brain wave signal for controlling optical signal output device 12 according to brain wave signal.
Particularly, control device 13 controls optical signal output device 12 and regulates wavelength of optical signal, light signal strength, optical signal relative at least one item in the angle of incidence of human eye.
Control device 13, by sending control instruction to optical signal output device 12, controls it and adjusts optical signal.
Be Scalp Potential significant contributor close to the Zhui Xing Zhong of cortex through first cell, the brain wave signal obtained by electrode detection is actually the detection signal of Scalp Potential.Neuron will produce electrical activity under being subject to exogenous stimulation.The electric field superposition that all pyramidal neurons electric current dipole produce in space, defines the Electric Field Distribution of brain interior or exterior space, can calculate the electrical potential information that brain scalp is taken up an official post between 1 thus.Because the Fourier space of the superposition of the sinusoidal current of different frequency can be decomposed into by each neuronic periodic current, and the sinusoidal current of each frequency is by being equivalent to a current dipole antenna during neuron, so the field that this neuron produces in space just can be considered as being the superposition of sinusoidal current dipole antenna in generation field, space of different frequency.
Have jurisdiction over based on neuron current dipole theory and in conjunction with current elements and penetrate theory, can suppose there is N number of electric current dipole in brain inside, each current dipole is respectively the electric field that any point produces
in space, the electric field of any point under the effect of all current dipoles is the vector of all electric fields, namely
thus, any two points A, being calculated as of the current potential intensity between B:
Meanwhile, according to the simplified model of optical signal and neuronic periodic current relation, can with the center of each current dipole for initial point builds spherical coordinate system to ask for
then have:
Wherein, U
aBfor characterizing the electric potential signal of described brain wave signal, ω is optical signal angular frequency,
for with the relevant parameter of wavelength of optical signal negative correlation (being also, with optical signal frequency positive correlation), due in same uniform dielectric, wavelength and frequency are inversely proportional to, μ is permeability of vacuum, is relative dielectric constant, therefore can think that k mainly affects by angular frequency, namely be equivalent to after being subject to environmental stimuli, neuron creates the sinusoidal current dipole that a frequency is ω.The above frequency is light characteristic frequency, but not light source scintillation frequency, S is brain wave electrode pickup area area, and A, B are respectively the locus of brain wave electrode,
for being pointed to the vector of B by A, N is the predetermined magnetic dipole quantity of hypothesis between A point and B point, and I is the current intensity of the magnetic dipole relevant to light signal strength, r '
m, θ '
mfor the coordinate of any point in space in the spherical coordinate system being initial point with i-th magnetic dipole center,
for the rotational coordinates angle used when the spherical coordinate system being initial point with m magnetic dipole center is transformed to unified rectangular coordinate system.
When environmental stimuli is applied to neuron, the pyramidal cell group in a certain region is upset, this just illustrates that they just at the same time and discharge with orientation, and then form a plane layer electric discharge, the potential difference of the inside and outside both sides of cell membrane will reduce, irritability can be strengthened, and supervenes an action potential, and figure is expressed as a peak shape pulse.
In the research of brain electricity, brain can be considered as an electromagnetic system, usually can represent with a current dipole pyramidal cell being in excitatory state, then the relation in brain between current source and external electromagnetic field can be determined by philosophy Maxwell (Maxwell) equation group describing electrical phenomena.Light wave is also electromagnetic wave, therefore can by the parameter of stimulus light signals and the contact of brain electric field.
According to above formula ask for further the frequency of brain Electrical change, amplitude rule can and obtain corresponding to different E.E.G classification, as β, α, θ and δ E.E.G.Analyze known further according to this, the optical signal with shorter wavelength (upper frequency) stimulates easy excitated β feature E.E.G Neural spike train characteristic, also namely improves brain wave frequency.The optical signal with longer wavelength (lower frequency) stimulates the electric discharge rhythm and pace of moving things that neuron then more can be excited to produce δ feature, also, reduces brain wave frequency.Meanwhile, according to above-mentioned formula, the amplitude of brain wave signal also becomes relevant to wavelength of optical signal, and therefore, wavelength of optical signal shorter (frequency is higher), the brain wave signal potential change that stimulus to the sense organ produces is less, thus brain electricity amplitude is lower.
Meanwhile, because the current intensity of current dipole is directly proportional to light signal strength.Therefore, the amplitude of brain wave signal is directly proportional to light signal strength.Meanwhile, optical signal is relevant to the light intensity that human eye receives relative to the incident angle of human eye, therefore, changes the feature that optical signal incident angle also can change E.E.G.Thus, based on above analysis, on the basis of existing photostimulation frequency theory, the present invention can more efficiently make cerebral neuron to discharge convergent step, more effectively obtains target characteristics of EEG.
Therefore, by regulating wavelength of optical signal, light signal strength, optical signal can carry out E.E.G induction more accurately relative at least one item in the angle of incidence of human eye.Meanwhile, by selecting direction or the mode of adjustment according to the brain wave signal feedback detected, improve the accuracy of adjustment.
Fig. 2 is the flow chart of the E.E.G Induction Control method of the embodiment of the present invention.Control device 13 can control optical signal output device 12 to carry out E.E.G induction according to flow process shown in Fig. 2.
As shown in Figure 2, described E.E.G Induction Control method comprises:
The brain wave signal of step 210, acquisition human body.
As mentioned above, control device 13 can receive by bus or communication connection the brain wave signal detecting and obtain.
Step 220, the optical signal for carrying out stimulus to the sense organ is regulated to tend to target E.E.G characteristic to make described brain wave signal according to brain wave signal.Wherein, described adjustment optical signal comprises adjustment wavelength of optical signal, light signal strength, optical signal relative at least one item in the angle of incidence of human eye.
According to the embodiment of the present invention, multiple regulative mode can be used.
In a preferred embodiment, control device 13 regulates according to conclusions, also be, when detecting that the frequency of brain wave signal is greater than target E.E.G characteristic, control optical signal output device 12 to perform and increase wavelength of optical signal, reduce light signal strength, increase optical signal relative at least one item in the angle of incidence of human eye to reduce the frequency of described brain wave signal and to increase the amplitude of described brain wave signal, this can make brain wave signal present more low-frequency range brain wave signal characteristic; When detecting that the frequency of brain wave signal is less than target E.E.G characteristic, performing and reducing wavelength of optical signal, increase light signal strength, reduce optical signal relative at least one item in the angle of incidence of human eye to increase the frequency of described brain wave signal and to reduce the amplitude of described brain wave signal.
In embodiments of the present invention, target E.E.G characteristic can be set by human-computer interaction device by user, such as, when needs improve focus, target E.E.G characteristic can be selected as the characteristic with α ripple, and when needs alleviate anxiety, target E.E.G characteristic can be selected as having δ wave property.
As mentioned above, in some cases, due to the modulation scheme of human brain, people is under different emotional state, and brain all can be different to the reaction that stimulus signal produces.Therefore, in another preferred embodiment, the feedback that control device 13 depends on brain wave signal regulates.As shown in Figure 3, described regulative mode comprises:
Step 221, control described optical signal output device and regulate described optical signal in the first way and keep the scheduled time.
For convenience of description, wavelength of optical signal is just increased here as described first method.Certainly, it will be understood by those skilled in the art that first method can regulate multiple optical signal parameters simultaneously.
Step 222, detect described brain wave signal whether tend to target characteristics of EEG change, if perform step 223, if not, perform step 224.
Step 223, when described brain wave signal trend target E.E.G characteristic variations being detected, continuing to keep regulating described optical signal (also namely, continue increase wavelength of optical signal) in the first way, after predetermined hold-time, returning step 222.
Step 224, when detecting that described brain wave signal does not tend to target E.E.G characteristic variations, adjusting described optical signal in a second manner (is also, reduce wavelength of optical signal), after predetermined hold-time, return step 222, described second method is contrary with first method.
Certainly, owing to can regulate multiple optical signal parameters, different human bodies is different for the reaction stimulated, and therefore, can obtain the regulative mode more than two kinds by the adjustment of combining multiple optical signal parameters.Such as, four kinds of regulative modes such as " increasing wavelength of optical signal+increase light signal strength ", " increasing wavelength of optical signal+reduction light signal strength ", " reducing wavelength of optical signal+increase light signal strength " and " reducing wavelength of optical signal+reduction light signal strength " can be obtained by the combination of wavelength of optical signal and light signal strength regulative mode.By detecting brain wave signal to the reaction of different adjustment mode, can regulate to obtain best regulative mode.
Particularly, this adjustment flow process as shown in Figure 4, comprising:
Step 221 ', control described optical signal output device 12 and regulate described optical signal in the first way and keep the scheduled time.
Step 222 ', detect described brain wave signal and whether tend to the change of target characteristics of EEG, if perform step 223 ', if not, perform step 224 '.
Step 223 ', detect described brain wave signal trend target E.E.G characteristic variations time, continue keep regulate described optical signal with current way, after predetermined hold-time, return step 222 '.
Step 224 ', when detecting that described brain wave signal does not tend to target E.E.G characteristic variations, choosing another kind of mode and regulating described optical signal, return step 222 after predetermined hold-time '.
Thus, by regulating in a feedback manner, the differential responses that human body stimulates optical signal can be adapted to, select best E.E.G induction mode, improve the accuracy of E.E.G induction.
Certainly, above-mentioned preferred implementation can be applied in control device 13 be combineding with each other, and under different conditioned disjunctions is arranged, carries out E.E.G Induction Control.
On the other hand, when light signal strength is higher, cerebral neuron synchronous discharge degree is stronger.According to the physiological property of human eye, the light being irradiated to human eye is accepted by photoreceptor cell，photosensory cell, and in its hyperpolarization process, optical signal is converted into the signal of telecommunication.If extraneous high light stimulates the current amplitude causing corticocerebral cranial nerve cell film to pass through during a part of user eyes greatly to increase.Polished bard is by force intense, cause cell membrane to wear membrane current stronger, the brain Electrical change caused is larger.When light intensity cause wear membrane current exceed certain threshold value time, a series of physiology or biochemical seondary effect will be caused and the uncomfortable of user can be brought out.Can Real-Time Monitoring brain wave signal be passed through, when brain wave signal parameter (amplitude or frequency) exceedes secure threshold, control optical signal output device 12 and stop output signal, also, stop stimulating to carry out E.E.G induction to human body.Thus, user safety can be ensured.
Simultaneously, due to acoustical signal, particularly music signal also has larger effect for E.E.G induction, according to the method that such as Chinese patent application CN201410360309.1 records, can meet the music file of people's current emotional states according to the rapid automatized coupling of brain wave signal.Therefore, the E.E.G inducing device of the present embodiment also increases sound signal outputting device, and control device 13 chooses the music signal of coupling according to described brain wave signal, controls output device and plays.Thus, sonic stimulation and optical signal are stimulated and combines, the accuracy of E.E.G induction can be increased, improve the comfortableness in Induction Process simultaneously.
In the present embodiment, control device 13 can be set to general data handling system (such as computer system), and as shown in Figure 5, computer system 5 is a kind of forms of data handling system, and it can comprise bus 51.Microprocessor (CPU) 52, volatile memory 53 and nonvolatile memory 54 and/or massage storage 55 are all connected to bus 51, are carried out exchanges data by bus 51 and are communicated.Microprocessor 52 can be independently microprocessor, also can be one or more microprocessor set.Above-mentioned multiple assembly links together by bus 51, said modules is connected to display controller 56 and display device and I/O (I/0) device 57 simultaneously.I/O (I/0) device 57 can be mouse, keyboard, modem, network interface, touch-control input device, body sense input equipment, printer and other devices well known in the art.Typically, input/output device 57 is connected with system by i/o controller 58.
Volatile memory 53 is also referred to as internal memory, it has the fireballing feature of reading and writing data, particularly, volatile memory 53 can be realized by dynamic random read-write memory (DRAM), and dynamic random read-write memory needs continued power to upgrade or to maintain the data in memorizer.
Typically, nonvolatile memory 54 refers to after electric current is turned off, the memorizer that the data stored can not disappear, and it can comprise such as read only memory (ROM) and flash memory (FlashMemory).Nonvolatile memory is typically for necessary program or other programs of storage system startup.
Typically, massage storage 55 can be the other types of magnetic hard drive or magneto-optical driver or the accumulator system that can store mass data, and massage storage 55 also can keep mass data after system shutdown power supply.Although the massage storage 55 shown in Fig. 5 is the local devices be directly connected with other assemblies of data handling system, should know that the present invention can use long-range massage storage, the network storage device be such as connected by network interface with data handling system, this network interface such as modem or Ethernet interface.Bus 51 can comprise by multiple bridge adapter well known in the art, controller and/or adapter, interconnective one or more of bus.I/0 controller 58 comprising USB (USB (universal serial bus)) adapter for controlling USB peripheral device, for the IEEE1394 controller of IEEE1394 ancillary equipment or the bluetooth controller for controlling Bluetooth peripheral, and being applicable to the peripheral controls of other peripheral interface standard in an embodiment.
It will be understood by those skilled in the art that some embodiments of the present invention can all or at least partly by software simulating.That is, embodiments of the invention can perform with the processor of such as microprocessor the job sequence comprised in memory and realize in computer system 5 or other data handling system, and described memorizer can be volatile memory or remote storage.In many embodiment:, hard-wired circuit can with software instruction connected applications, to realize the present invention.So, this technology is not limited to any particular combination of hardware circuit and software, is also not limited to any specific instruction source that data handling system performs.In addition, run through this description, various function and operation are described to be performed by software code or caused to simplify this description by software code.But, those skilled in the art will recognize that this expression means that this function is realized by the processor run time version of such as microprocessor 52.
The E.E.G inducing device of the present embodiment can be formed as various forms to be adapted to different application scenarios, and the present invention does not limit its concrete form.
Control device 13 can become one with described E.E.G checkout gear 11 and optical signal output device 12, to form the wearable E.E.G inducing device of integration.Control device 13 can also become one with described E.E.G checkout gear 11, and is independently arranged (atmosphere lamp being such as set to enclosed space) in the mode be separated by optical signal output device 12.Control device 13 can also be general data processing equipment, and optical signal output device 12 is the display integrated with it, and E.E.G checkout gear 11 is connect by wired or wireless communication the peripheral hardware communicated with.In this case, the coalition of optical signal output device 12 and control device 13 can be such as panel computer or mobile communication terminal etc., and control device 13 is by working procedure or application controls optical signal output device 12 (being also display) output optical signal.
The embodiment of the present invention, by the brain wave signal of human body in E.E.G Induction Process, forms the feedback control loop of optical signal and human response's (brain wave signal), progressively adjusts stimulation according to feedback, can improve the accuracy of E.E.G induction.
The foregoing is only the preferred embodiments of the present invention, be not limited to the present invention, to those skilled in the art, the present invention can have various change and change.All do within spirit of the present invention and principle any amendment, equivalent replacement, improvement etc., all should be included within protection scope of the present invention.
Claims (10)
1. an E.E.G Induction Control method, comprising:
Obtain the brain wave signal of human body;
The optical signal parameters for carrying out stimulus to the sense organ is regulated to tend to target E.E.G characteristic to make described brain wave signal according to described brain wave signal;
Wherein, described adjustment optical signal parameters comprises adjustment wavelength of optical signal, light signal strength, optical signal relative at least one item in the angle of incidence of human eye.
2. E.E.G Induction Control method according to claim 1, is characterized in that, describedly regulates optical signal parameters to comprise according to described brain wave signal:
Perform increase wavelength of optical signal, reduce light signal strength, increase optical signal increases brain wave signal simultaneously with the frequency reducing described brain wave signal amplitude relative at least one item in the angle of incidence of human eye;
Perform reduction wavelength of optical signal, increase light signal strength, reduce optical signal reduces brain wave signal simultaneously with the frequency increasing described brain wave signal amplitude relative at least one item in the angle of incidence of human eye.
3. E.E.G Induction Control method according to claim 1, is characterized in that, regulates optical signal parameters to comprise according to brain wave signal:
Regulate described optical signal parameters in the first way and keep the scheduled time;
When described brain wave signal trend target E.E.G characteristic variations being detected, continue to keep regulating described optical signal with current way, otherwise, adjust described optical signal parameters in a second manner;
Described second method is different from first method.
4. E.E.G Induction Control method according to claim 1, it is characterized in that, described method also comprises:
When detecting that brain wave signal parameter exceeds secure threshold, stop exporting described optical signal.
5. E.E.G Induction Control method according to claim 1, it is characterized in that, described method also comprises:
The music file playing coupling is chosen according to described brain wave signal.
6. an E.E.G inducing device, comprising:
E.E.G checkout gear, for detecting the brain wave signal obtaining human body;
Optical signal output device, for exporting the optical signal for carrying out stimulus to the sense organ;
Control device, regulates described optical signal to tend to target E.E.G characteristic to make described brain wave signal for controlling described optical signal output device according to described brain wave signal;
Wherein, described control device controls described optical signal output device adjustment wavelength of optical signal, light signal strength, optical signal relative at least one item in the angle of incidence of human eye.
7. E.E.G inducing device according to claim 6, it is characterized in that, described control device controls described optical signal output device and performs increase wavelength of optical signal, reduces light signal strength, increases optical signal relative at least one item in the angle of incidence of human eye to reduce the frequency of described brain wave signal and to increase amplitude; Or control described optical signal output device to perform reduction wavelength of optical signal, increase light signal strength, reduce optical signal relative at least one item in the angle of incidence of human eye to increase the frequency of described brain wave signal and to reduce amplitude.
8. E.E.G inducing device according to claim 6, it is characterized in that, described control device regulates described optical signal in the first way for controlling described optical signal output device and keeps the scheduled time, and when described brain wave signal trend target E.E.G characteristic variations being detected, continue to keep regulating described optical signal with current way, otherwise adjust described optical signal in a second manner, described second method is different from first method.
9. E.E.G inducing device according to claim 6, is characterized in that, described control device detect brain wave signal parameter control when exceeding secure threshold described optical signal output device stop output optical signal.
10. E.E.G inducing device according to claim 6, is characterized in that, also comprise:
Sound signal outputting device, for exporting the acoustical signal for carrying out stimulus to the sense organ;
Wherein, described control device is used for the music file choosing coupling according to described brain wave signal, controls described sound signal outputting device and plays.
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| CN201510223997.1A CN104783788A (en) | 2015-05-05 | 2015-05-05 | Brain wave induction control method and device |
| PCT/CN2016/075476 WO2016177062A1 (en) | 2015-05-05 | 2016-03-03 | Brainwave induction control method and brainwave induction device |
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