TWI865136B - Brain stimulation signal control method, device and system - Google Patents

Abstract

The present disclosure provides a brain stimulation signal control method, includes: performing a stimulation feedback procedure, including: providing sensory stimulation signals to a user based on a stimulation parameter including a frequency parameter, obtaining a feedback signal in response to the sensory stimulation signals, and determining whether the feedback signal indicates a positive feedback state or a negative feedback state, setting the stimulation parameter as a default parameter when the feedback signal indicates the positive feedback state, and adjusting a value of the stimulation parameter and performing the stimulation feedback procedure again when the feedback signal indicates the negative feedback state.

Description

Brain stimulation signal regulation method, device and system

The present invention relates to a method, device and system for regulating brain stimulation signals.

The problem of population aging is becoming more and more serious, and the care of dementia also causes heavy economic expenditure. In order to delay or even treat the problem of dementia, various prevention and treatment methods have been developed. For example, current studies have shown that by inducing the brain to produce brain waves of specific frequency bands, the user's cognitive function can be improved.

However, due to individual differences, the specific frequency band generated by a single stimulus source may not be effective for some users. In addition, in order to confirm whether the stimulation is effective, users need to go to the hospital frequently for EEG tests, which is quite inconvenient for users.

In view of the above, the present invention provides a brain stimulation signal control method, device and system to solve the above problems.

According to an embodiment of the present invention, a brain stimulation signal control method includes: executing a stimulation feedback program, including: providing multiple sensory stimulation signals to a user based on stimulation parameters, the stimulation parameters including frequency parameters; obtaining feedback signals in response to the multiple sensory stimulation signals; and determining whether the feedback signal indicates a positive feedback state or a negative feedback state; when the feedback signal indicates a positive feedback state, setting the stimulation parameter to a default parameter; and when the feedback signal indicates a negative feedback state, adjusting the value of the stimulation parameter and executing the stimulation feedback program again.

According to an embodiment of the present invention, a brain stimulation signal control device comprises: a plurality of stimulation elements and a control element. The plurality of stimulation elements are used to output a plurality of sensory stimulation signals to a user. The control element is connected to the multiple stimulation elements, and is used to control the multiple stimulation elements to output the multiple sensory stimulation signals, and execute: a stimulation feedback program, including: controlling the multiple stimulation elements to provide the multiple sensory stimulation signals to the user based on stimulation parameters, the stimulation parameters including frequency parameters; obtaining feedback signals in response to the multiple sensory stimulation signals; and determining whether the feedback signal indicates a positive feedback state or a negative feedback state; when the feedback signal indicates a positive feedback state, setting the stimulation parameter to a default parameter; and when the feedback signal indicates a negative feedback state, adjusting the value of the stimulation parameter and executing the stimulation feedback program again.

According to an embodiment of the present invention, a brain stimulation signal control system includes: a stimulation device and a mobile device. The stimulation device is used to output multiple sensory stimulation signals to the user. The mobile device is connected to the stimulation device, and the mobile device is used to: execute a stimulation feedback program, including: controlling the stimulation device to provide the multiple sensory stimulation signals to the user based on stimulation parameters, the stimulation parameters include frequency parameters; obtaining feedback signals in response to the multiple sensory stimulation signals; and determining whether the feedback signal indicates a positive feedback state or a negative feedback state; when the feedback signal indicates a positive feedback state, setting the stimulation parameter to a default parameter; and when the feedback signal indicates a negative feedback state, adjusting the value of the stimulation parameter and executing the stimulation feedback program again.

In summary, the brain stimulation signal control method, device and system according to one or more embodiments of the present invention can make the stimulation parameters of the sensory stimulation signal more personalized by adjusting the sensory stimulation signal according to the user's feedback signal. In addition, the brain stimulation signal control system according to one or more embodiments of the present invention uses a mobile device to obtain the user's feedback signal and uses the feedback signal as the basis for adjusting the stimulation parameters of the sensory stimulation signal, so that the user can properly adjust the sensory stimulation signal without going to a medical institution, so that brain stimulation can be easily integrated into daily use scenarios.

The above description of the disclosed content and the following description of the implementation method are used to demonstrate and explain the spirit and principle of the present invention, and provide a further explanation of the scope of the patent application of the present invention.

100: Brain stimulation signal control system

1,1’: Brain stimulation signal control device

11: The first stimulating element

12: Second stimulus element

13: The third stimulating element

14: Control elements

15: Display components

16:Photographic components

17: Input components

2: Mobile devices

21: Display component

22:Photographic components

23: Computing components

S101,S103,S105,S107,S109,S201,S203,S205,S301,S303,S305,S401,S403,S405: Steps

FIG1 is a block diagram of a brain stimulation signal control device according to an embodiment of the present invention.

FIG2 is a block diagram of a brain stimulation signal control system according to an embodiment of the present invention.

FIG3 is a flow chart of a brain stimulation signal control method according to an embodiment of the present invention.

FIG4 is a block diagram of a brain stimulation signal control device according to another embodiment of the present invention.

FIG5 is a block diagram of a mobile device according to an embodiment of the present invention.

FIG6 is a flow chart of generating a feedback signal according to an embodiment of the present invention.

FIG7 is a flow chart of generating a feedback signal according to another embodiment of the present invention.

FIG8 is a flow chart of generating a feedback signal according to another embodiment of the present invention.

Figure 9(a) shows the time it takes for a stimulation signal to reach the brain when stimulating the brain using the learning technique; Figure 9(b) shows the time it takes for a stimulation signal to reach the brain when stimulating the brain using the brain stimulation signal regulation technique of the present invention.

The detailed features and advantages of the present invention are described in detail in the following implementation method. The content is sufficient for anyone familiar with the relevant technology to understand the technical content of the present invention and implement it accordingly. According to the content disclosed in this specification, the scope of the patent application and the drawings, anyone familiar with the relevant technology can easily understand the relevant purposes and advantages of the present invention. The following embodiments are to further illustrate the viewpoints of the present invention, but do not limit the scope of the present invention by any viewpoint.

Please refer to FIG. 1 , which is a block diagram of a brain stimulation signal control device according to an embodiment of the present invention. The brain stimulation signal control device 1 can be implemented as an independent device, such as a head-mounted device, an upright device, etc. As shown in FIG. 1 , the brain stimulation signal control device 1 includes a first stimulation element 11, a second stimulation element 12, a third stimulation element 13, and a control element 14. The first stimulation element 11, the second stimulation element 12, and the third stimulation element 13 are electrically connected to the control element 14. The first stimulation element 11, the second stimulation element 12, and the third stimulation element 13 are different stimulation elements. For example, the first stimulation element 11 can be a light-emitting diode, the second stimulation element 12 can be a speaker, and the third stimulation element 13 can be a skin electrode, but it is not limited thereto. The control element 14 is used to control the first stimulation element 11, the second stimulation element 12 and the third stimulation element 13 to send sensory stimulation signals to the user. The control element 14 may include one or more processors, such as a central processing unit, a graphics processor, a microcontroller, a programmable logic controller or other processors with signal processing functions.

It should be noted that FIG. 1 shows three stimulation elements by way of example, and the brain stimulation signal control device 1 may include only two stimulation elements, or more than three stimulation elements.

Please refer to FIG. 2, which is a block diagram of a brain stimulation signal control system according to an embodiment of the present invention. As shown in FIG. 2, the brain stimulation signal control system 100 includes a brain stimulation signal control device 1 and a mobile device 2. The brain stimulation signal control device 1 may be the same as the brain stimulation signal control device 1 of FIG. 1, so it is not described here in detail.

The mobile device 2 can be a smart phone, a tablet computer, a smart watch, etc. The mobile device 2 can be connected to the control element 14 of the brain stimulation signal control device 1 in a wired or wireless manner. For example, the wireless method may include wireless communication technologies such as Bluetooth, Wifi, cellular communication, or near field communication. The mobile device 2 can be used to obtain the effect of the user on the brain stimulation signal and adjust the stimulation parameters of the first stimulation element 11, the second stimulation element 12, and the third stimulation element 13 accordingly.

To explain the content of brain stimulation signal regulation in more detail, please refer to FIG. 2 and FIG. 3 , wherein FIG. 3 is a flow chart of a brain stimulation signal regulation method according to an embodiment of the present invention. As shown in FIG3 , the brain stimulation signal control method includes: step S101: providing a plurality of sensory stimulation signals to a user based on stimulation parameters, wherein the stimulation parameters include frequency parameters; step S103: obtaining feedback signals in response to the plurality of sensory stimulation signals; step S105: determining whether the feedback signal indicates a positive feedback state or a negative feedback state; if the determination result of step S105 is “positive feedback state”, executing step S107: setting the stimulation parameters to default parameters; and if the determination result of step S105 is “negative feedback state”, executing step S109: adjusting the value of the stimulation parameters, and executing step S101 again. Steps S101, S103 and S105 can be regarded as a stimulus feedback procedure.

In step S101, the control element 14 controls the first stimulation element 11, the second stimulation element 12 and the third stimulation element 13 to output sensory stimulation signals to the user respectively according to the stimulation parameters stored in the control element 14. The stimulation parameters include frequency parameters, and the sensory stimulation signals may correspond to the same frequency, such as 40 Hz. Taking the above-mentioned type of stimulation element as an example, each of the sensory stimulation signals is at least one of a light signal, a sound signal and an electrical signal, wherein the sound signal may include a basic sound signal corresponding to the frequency parameter and a special sound signal superimposed on the basic sound signal (e.g., music, rain sound, etc.), and the light signal may include a basic light signal corresponding to the frequency parameter and a special light signal superimposed on the basic sound signal (e.g., video, picture, etc.). In other words, the control element 14 controls the first stimulation element 11, the second stimulation element 12 and the third stimulation element 13 to output sensory stimulation signals to the user at the same frequency. In addition, the stimulation parameters may also include at least one of a duty cycle parameter and an intensity parameter, wherein the duty cycle parameter indicates the ratio of the high voltage time of the sensory stimulation signal to a complete cycle, and the intensity parameter indicates the signal intensity of the sensory stimulation signal.

In this embodiment, in step S103, the mobile device 2 obtains the feedback signal of the user in response to the sensory stimulation signals. The feedback signal may indicate whether the stimulation parameters corresponding to the sensory stimulation signal meet the personalized stimulation needs of the user. For example, the feedback signal may be obtained by detecting the user's physiological information (e.g., eye movement, pupil dilation, etc.), and the feedback signal may also include the user's subjective feedback (e.g., questionnaire test), etc.

In step S105, the mobile device 2 determines whether the feedback signal indicates a positive feedback state or a negative feedback state. When the feedback signal indicates a positive feedback state, it means that the stimulation parameters of the sensory stimulation signal output to the user in step S101 meet the user's personalized stimulation needs. When the feedback signal indicates a negative feedback state, it means that the stimulation parameters of the sensory stimulation signal output to the user in step S101 do not meet the user's personalized stimulation needs.

Therefore, when the feedback signal indicates a positive feedback state, in step S107, the mobile device 2 sets the stimulation parameters of the sensory stimulation signal output in step S101 to the default parameters (i.e., set to a fixed formula) and stores them in the control element 14. Therefore, when the brain stimulation signal control device is activated again, the control element 14 can control the first stimulation element 11, the second stimulation element 12, and the third stimulation element 13 to output sensory stimulation signals to the user according to the default parameters that meet the user's personalized stimulation needs.

On the contrary, when the feedback signal indicates a negative feedback state, in step S109, the mobile device 2 adjusts the value of the stimulation parameter and executes the stimulation feedback procedure again. Taking the frequency parameter as an example, the mobile device 2 can adjust the stimulation parameter within a preset frequency range and execute step S101 again with the adjusted stimulation parameter. The preset frequency range is preferably a frequency range that has been medically verified to be suitable for most users, such as 38Hz to 42Hz. In addition, the duty cycle parameter and the intensity parameter can also have a preset duty cycle range and a preset adjustment range, respectively, and the mobile device 2 can adjust the stimulation parameter accordingly. The default duty cycle range is, for example, 25% to 35%, and the default adjustment range of the intensity parameter is, for example, 5%, but it is not limited thereto. The duty cycle range and adjustment range can be adjusted as needed in different embodiments.

The above is a description of the steps of FIG. 3 using the brain stimulation signal control system 100 of FIG. 2 . However, in one embodiment, the brain stimulation signal control device 1 of FIG. 1 can also be used to execute the steps of FIG. 3 . Specifically, in step S101 , the control element 14 controls the first stimulation element 11 , the second stimulation element 12 , and the third stimulation element 13 to output sensory stimulation signals to the user based on the pre-stored stimulation parameters. In step S103 , the control element 14 can obtain feedback signals from the user's mobile device, or directly obtain feedback signals from the user in response to the sensory stimulation signals. In step S105 , the control element 14 determines whether the feedback signal indicates a positive feedback state or a negative feedback state. When the feedback signal indicates a positive feedback state, in step S107, the control element 14 sets the stimulation parameters to the default parameters (i.e., sets them to a fixed formula) and stores the default parameters. When the feedback signal indicates a negative feedback state, in step S109, the control element 14 adjusts the stimulation parameters within the preset frequency range and executes step S101 again with the adjusted stimulation parameters.

Through the operation mode of the brain stimulation signal control device 1 and the brain stimulation signal control system 100 adjusting the stimulation parameters of the sensory stimulation signal according to the feedback signal, personalized stimulation parameters that meet the user's needs can be obtained. The brain stimulation signal control device 1 and the brain stimulation signal control system 100 provide sensory stimulation signals to the user using personalized stimulation parameters that meet the user's needs, which can enhance the effectiveness of improving the user's cognitive function.

Please refer to FIG. 4, which is a block diagram of a brain stimulation signal control device according to another embodiment of the present invention. As shown in FIG. 4, the brain stimulation signal control device 1' includes a first stimulation element 11, a second stimulation element 12, a third stimulation element 13, a control element 14, a display element 15, a photographic element 16, and an input element 17. The first stimulation element 11, the second stimulation element 12, the third stimulation element 13, and the control element 14 in this embodiment can be respectively the same as the first stimulation element 11, the second stimulation element 12, the third stimulation element 13, and the control element 14 in FIG. 1, so they are not described here in detail.

The display element 15, the camera element 16 and the input element 17 can be electrically connected to the control element 14. The display element 15 can be used to display pictures, videos and/or text. The camera element 16 can be used to take pictures of the user. The input element 17 can be used to receive instructions input by the user, such as a mouse, keyboard or microphone. In other words, the display element 15, the camera element 16 and the input element 17 can all be used to receive feedback from the user to generate a feedback signal. In addition, in one embodiment, the display element 15 is a touch screen, and the input element 17 can be omitted, or in another embodiment, only the display element 15 and the input element 17 can be retained. That is, the display element 15, the photographic element 16 and the input element 17 are selectively set elements, which can be set according to the needs in different embodiments and are not limited here.

Please refer to FIG. 5 , which is a block diagram of a mobile device according to an embodiment of the present invention. As shown in FIG. 5 , the mobile device 2 may include a display element 21, a camera element 22, and an operation element 23. The operation element 23 is electrically connected to the display element 21 and the camera element 22, and the operation element 23 may be further electrically connected to the control element 14 as shown in FIG. 1 or FIG. 2 . The display element 21 may be the display element 15 shown in FIG. 4 , which is used to display pictures, videos and/or texts, and may be a touch screen. The camera element 22 may be the camera element 16 shown in FIG. 4 , and may be arranged on the same side as the display element 21 to capture the user's pupils. In other words, the display element 21, the imaging element 22 and the computing element 23 can all be used to receive user feedback to generate a feedback signal.

Please refer to FIG. 5 and FIG. 6 together, where FIG. 6 is a flow chart of generating a feedback signal according to an embodiment of the present invention. FIG. 6 can be regarded as a detailed flow chart of an embodiment of step S103 of FIG. 3. As shown in FIG. 6, obtaining a user's feedback signal includes: step S201: playing a test video, wherein the test video presents a moving object; step S203: detecting the pupil trajectory of the user's pupil corresponding to the moving object; and step S205: using the matching degree between the moving trajectory of the moving object and the pupil trajectory as a feedback signal.

In step S201, the display element 21 plays a test video, wherein the test video presents a moving object (e.g., a dot, a pattern, etc.) moving in the screen. In step S203, the camera element 22 detects the user's pupil and tracks the moving object to obtain the user's pupil trajectory. In step S205, the computing element 23 uses the matching degree between the moving trajectory of the moving object and the pupil trajectory as a feedback signal, wherein a positive feedback state indicates that the matching degree is equal to or higher than a preset degree, and a negative feedback state indicates that the matching degree is lower than a preset degree. The matching degree may include the overlap degree between the moving trajectory and the pupil trajectory or the time difference between one or more points on the moving trajectory and the corresponding points on the pupil trajectory, etc. In other words, the higher the overlap, the higher the matching degree, and the greater the time difference, the lower the matching degree.

For example, when the matching degree between the movement trajectory and the pupil trajectory is equal to or higher than the preset degree, it means that the stimulation parameters of the sensory stimulation signal output to the user meet the user's personalized stimulation needs, and the user's eye tracking ability meets the expected state. Therefore, the feedback signal indicates a positive feedback state.

On the contrary, when the matching degree between the movement trajectory and the pupil trajectory is lower than the preset degree, it means that the stimulation parameters of the sensory stimulation signal output to the user do not meet the user's personalized stimulation needs, and the user's eye tracking ability does not meet the expected state. Therefore, the feedback signal indicates a negative feedback state.

The brain stimulation signal control device 1' shown in FIG4 is also applicable to the steps in FIG6. That is, the display element 15 in FIG4 can execute step S201, the photographic element 16 can execute step S203, and the control element 14 can execute step S205. The execution details are as described above and will not be repeated here.

Please refer to FIG. 5 and FIG. 7 together, where FIG. 7 is a flow chart of generating a feedback signal according to another embodiment of the present invention. FIG. 7 can be regarded as a detailed flow chart of an embodiment of step S103 of FIG. 3. As shown in FIG. 7, obtaining the user's feedback signal includes: step S301: displaying a test image at a predetermined brightness; step S303: detecting the pupil size of the user's pupil corresponding to the test image; and step S305: using the matching degree between the predetermined brightness and the pupil size as the feedback signal.

In step S301, the display element 21 displays the test image at a predetermined brightness, and the present invention does not limit the specific content of the test image. In step S303, the camera element 22 photographs the user's pupil to obtain the corresponding pupil size when the user views the test image. In step S305, the computing element 23 uses the matching degree between the predetermined brightness and the pupil size as a feedback signal, wherein a positive feedback state indicates that the matching degree is equal to or higher than a preset degree, and a negative feedback state indicates that the matching degree is lower than a preset degree. For example, the predetermined brightness may have a corresponding predetermined pupil size (for example, the higher the predetermined brightness, the smaller the corresponding predetermined pupil size), the closer the pupil size is to the predetermined pupil size, the higher the matching degree; the farther the pupil size is from the predetermined pupil size, the lower the matching degree.

The brain stimulation signal control device 1' shown in FIG4 is also applicable to the steps in FIG7. That is, the display element 15 in FIG4 can execute step S301, the photographic element 16 can execute step S303, and the control element 14 can execute step S305. The execution details are as described above and will not be repeated here.

Please refer to FIG. 5 and FIG. 8 together, wherein FIG. 8 is a flowchart of generating a feedback signal according to another embodiment of the present invention. FIG. 8 can be regarded as a detailed flowchart of an embodiment of step S103 of FIG. 3. As shown in FIG. 8, obtaining a user's feedback signal includes: Step S401: presenting a cognitive test scale; Step S403: obtaining a user's answer to the cognitive test scale; and Step S405: using the matching degree between the user's answer and the preset answer as a feedback signal.

In step S401, the display element 21 presents a cognitive test scale. The cognitive test scale may include questions for testing one or more of memory, perceptual action, execution and concentration. In step S403, the mobile device 2 obtains the user's answer to the question as the user answer. For example, the user answer may be input through the display element 21 which is a touch screen, or input through a component such as a speaker of the mobile device 2. In step S405, the computing element 23 compares the user answer with the preset answer to determine the degree of matching, wherein a positive feedback status indicates that the degree of matching is equal to or higher than the preset degree, and a negative feedback status indicates that the degree of matching is lower than the preset degree. The degree of matching may be the degree of match (i.e., accuracy) between the user answer and the preset answer. In other words, the higher the accuracy of the user's answer, the higher the matching degree.

The brain stimulation signal control device 1' shown in FIG4 is also applicable to the steps in FIG8. That is, the display element 15 in FIG4 can execute step S401, the photographic input element 17 can execute step S403, and the control element 14 can execute step S405. The execution details are as described above and will not be repeated here.

Please refer to Figure 9(a) and Figure 9(b), wherein Figure 9(a) shows the time taken by the stimulation signal for stimulating the brain using the known technique to reach the target area (e.g., brain) of the user; and Figure 9(b) shows the time taken by the stimulation signal for stimulating the brain using the brain stimulation signal control technique of the present invention to reach the target area (e.g., brain) of the user. The first stimulation source intensity in Figure 9(b) may refer to the intensity of the sensory stimulation signal output by the aforementioned first stimulation element 11, the second stimulation source intensity may refer to the intensity of the sensory stimulation signal output by the aforementioned second stimulation element 12, and the third stimulation source intensity may refer to the intensity of the sensory stimulation signal output by the aforementioned third stimulation element 13. Moreover, in this embodiment, the first stimulation element 11, the second stimulation element 12, and the third stimulation element 13 all output sensory stimulation signals at a frequency parameter of 40 Hz.

Please refer to Figure 9(a) first. Taking the target area as the brain, it is known that the time when the sensory stimulation signal output by the first stimulation element reaches the user's brain is the first time T1, the time when the sensory stimulation signal output by the second stimulation element reaches the user's brain is the second time T2, and the time when the sensory stimulation signal output by the third stimulation element reaches the user's brain is the third time T3. As shown in Figure 9(a), there is a time difference between the first time T1, the second time T2 and the third time T3 (for example, the time difference between two adjacent sensory stimulation signals is 25 milliseconds), indicating that using the known brain stimulation technology, the sensory stimulation signals cannot reach the user's brain at the same time.

Please refer to Figure 9(b). Taking the target area as the brain as an example, the time when the sensory stimulation signal output by the first stimulation element 11 reaches the user's brain is the first time T1', the time when the sensory stimulation signal output by the second stimulation element 12 reaches the user's brain is the second time T2', and the time when the sensory stimulation signal output by the third stimulation element 13 reaches the user's brain is the third time T3'. As shown in Figure 9(b), there is no time difference between the first time T1', the second time T2' and the third time T3', indicating that using the brain stimulation technology of the present invention, the sensory stimulation signal can reach the user's brain almost at the same time, which means that the sensory stimulation signal can reach the user's target area at the same time.

In summary, according to the brain stimulation signal control method, device and system of one or more embodiments of the present invention, by adjusting the sensory stimulation signal according to the user's feedback signal, the stimulation parameters of the sensory stimulation signal can be more personalized. In addition, by obtaining the user's feedback signal through a mobile device and using the feedback signal as a basis for adjusting the stimulation parameters of the sensory stimulation signal, the user can appropriately adjust the sensory stimulation signal without going to a medical institution, so that brain stimulation can be easily integrated into daily use scenarios.

Although the present invention is disclosed as above by the aforementioned embodiments, it is not intended to limit the present invention. Any changes and modifications made within the spirit and scope of the present invention are within the scope of patent protection of the present invention. Please refer to the attached patent application for the scope of protection defined by the present invention.

S101, S103, S105, S107, S109: Steps

Claims (21)

A brain stimulation signal control method includes: executing a stimulation feedback program, including: providing a plurality of sensory stimulation signals to a user based on a stimulation parameter, the stimulation parameter including a frequency parameter, wherein the sensory stimulation signals can substantially reach a target area of the user at the same time, and the sensory stimulation signals include at least one light signal and one sound signal; obtaining a feedback signal in response to the sensory stimulation signals; and determining whether the feedback signal indicates a positive feedback state or a negative feedback state; when the feedback signal indicates the positive feedback state, setting the stimulation parameter to a default parameter; and when the feedback signal indicates the negative feedback state, adjusting the value of the stimulation parameter and executing the stimulation feedback program again. The brain stimulation signal control method as described in claim 1, wherein obtaining the feedback signal in response to the sensory stimulation signals comprises: playing a test video, wherein the test video presents a moving object; detecting a pupil trajectory of the user's pupil corresponding to the moving object; and using a matching degree between a moving trajectory of the moving object and the pupil trajectory as the feedback signal; wherein the positive feedback state indicates that the matching degree is equal to or higher than a preset degree, and the negative feedback state indicates that the matching degree is lower than the preset degree. The brain stimulation signal control method as described in claim 1, wherein obtaining the feedback signal in response to the sensory stimulation signals includes: displaying a test image at a predetermined brightness; detecting a pupil size of the user's pupil corresponding to the test image; and using a matching degree between the predetermined brightness and the pupil size as the feedback signal, wherein the positive feedback state indicates that the matching degree is equal to or higher than a preset degree, and the negative feedback state indicates that the matching degree is lower than the preset degree. A method for controlling brain stimulation signals as described in claim 1, wherein obtaining the feedback signal in response to the sensory stimulation signals comprises: presenting a cognitive test scale; obtaining a user answer to the cognitive test scale; and using a matching degree between the user answer and a preset answer as the feedback signal, wherein the positive feedback state indicates that the matching degree is equal to or higher than a preset degree, and the negative feedback state indicates that the matching degree is lower than the preset degree. A method for regulating brain stimulation signals as described in claim 1, wherein the sensory stimulation signals correspond to the same frequency. The brain stimulation signal control method as described in claim 1, wherein the sensory stimulation signals further include an electrical signal. A brain stimulation signal control method as described in claim 1, wherein the stimulation parameter further includes at least one of a duty cycle parameter and an intensity parameter. A brain stimulation signal control device comprises: A plurality of stimulation elements, used to output a plurality of sensory stimulation signals to a user based on a stimulation parameter, wherein the sensory stimulation signals can substantially reach a target area of the user at the same time, and the sensory stimulation signals include at least one light signal and one sound signal; and a control element, connected to the stimulation elements, used to control the stimulation elements to output the sensory stimulation signals and obtain a feedback signal, wherein the control element sets the stimulation parameter to a preset parameter or adjusts the stimulation parameter according to whether the feedback signal indicates a positive feedback state or a negative feedback state. The brain stimulation signal control device as described in claim 8 further comprises: a display element connected to the control element for playing a test video, wherein the test video presents a moving object; and a camera element connected to the control element for detecting a pupil trajectory of the user's pupil corresponding to the moving object, wherein the control element uses a matching degree between a moving trajectory of the moving object and the pupil trajectory as the feedback signal, wherein the positive feedback state indicates that the matching degree is equal to or higher than a preset degree, and the negative feedback state indicates that the matching degree is lower than the preset degree. The brain stimulation signal control device as described in claim 8 further comprises: a display element connected to the control element for displaying a test image at a predetermined brightness; and a photographic element connected to the control element for detecting a pupil size of the user's pupil corresponding to the test image, wherein the control element uses a matching degree between the predetermined brightness and the pupil size as the feedback signal, wherein the positive feedback state indicates that the matching degree is equal to or higher than a preset degree, and the negative feedback state indicates that the matching degree is lower than the preset degree. The brain stimulation signal control device as described in claim 8 further comprises: an input element connected to the control element for receiving a user answer to a cognitive test scale, wherein the control element uses a matching degree between the user answer and a preset answer as the feedback signal, wherein the positive feedback state indicates that the matching degree is equal to or higher than a preset degree, and the negative feedback state indicates that the matching degree is lower than the preset degree. A brain stimulation signal control device as described in claim 8, wherein the stimulation parameter includes a frequency parameter, and the sensory stimulation signals correspond to the same frequency. A brain stimulation signal control device as described in claim 8, wherein the sensory stimulation signals further include an electrical signal. A brain stimulation signal control device as described in claim 8, wherein the stimulation parameter includes at least one of a duty cycle parameter and an intensity parameter. A brain stimulation signal control system includes: a stimulation device for outputting multiple sensory stimulation signals to a user based on a stimulation parameter, wherein the sensory stimulation signals can substantially reach a target area of the user at the same time, and the sensory stimulation signals include at least one light signal and one sound signal; and an action device connected to the stimulation device for executing a stimulation feedback program to obtain a feedback signal, and setting the stimulation parameter to a default parameter or adjusting the stimulation parameter according to whether the feedback signal indicates a positive feedback state or a negative feedback state. A brain stimulation signal control system as described in claim 15, wherein the mobile device comprises: a display element for playing a test video, wherein the test video presents a moving object; a camera element for detecting a pupil trajectory of the user's pupil corresponding to the moving object; and an operation element connected to the display element and the camera element, for using a matching degree between a moving trajectory of the moving object and the pupil trajectory as the feedback signal, wherein the positive feedback state indicates that the matching degree is equal to or higher than a preset degree, and the negative feedback state indicates that the matching degree is lower than the preset degree. A brain stimulation signal control system as described in claim 15, wherein the mobile device comprises: a display element for displaying a test image at a predetermined brightness; a photographic element for detecting a pupil size of the user's pupil corresponding to the test image; and an operation element connected to the display element and the photographic element, for using a matching degree between the predetermined brightness and the pupil size as the feedback signal, wherein the positive feedback state indicates that the matching degree is equal to or higher than a preset degree, and the negative feedback state indicates that the matching degree is lower than the preset degree. A brain stimulation signal control system as described in claim 15, wherein the mobile device comprises: a display element for presenting a cognitive test scale; and an operation element connected to the display element, for obtaining a user answer to the cognitive test scale, and using a matching degree between the user answer and a preset answer as the feedback signal, wherein the positive feedback state indicates that the matching degree is equal to or higher than a preset degree, and the negative feedback state indicates that the matching degree is lower than the preset degree. A brain stimulation signal control system as described in claim 15, wherein the stimulation parameter includes a frequency parameter, and the sensory stimulation signals correspond to the same frequency. A brain stimulation signal control system as described in claim 15, wherein the sensory stimulation signals further include an electrical signal. A brain stimulation signal control system as described in claim 15, wherein the stimulation parameter includes at least one of a duty cycle parameter and an intensity parameter.

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