CN117407729A - Stimulation effect evaluation method, stimulation effect evaluation device, stimulation effect evaluation terminal and stimulation effect evaluation medium for transcranial alternating current equipment - Google Patents
Stimulation effect evaluation method, stimulation effect evaluation device, stimulation effect evaluation terminal and stimulation effect evaluation medium for transcranial alternating current equipment Download PDFInfo
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Abstract
The invention discloses a stimulation effect evaluation method, a stimulation effect evaluation device, a stimulation effect evaluation terminal and a stimulation effect evaluation medium for transcranial alternating current equipment, wherein the stimulation effect evaluation method comprises the following steps of: acquiring positioning information of an alternating current stimulation part of transcranial alternating current equipment in a brain region, and determining a point location matching result of the alternating current stimulation part based on the positioning information; acquiring real-time brain electrical signals detected by a signal detection part of transcranial alternating current equipment at a plurality of target brain points, and determining the signal synchronism of the real-time brain electrical signals based on the real-time brain electrical signals; and determining the stimulation effect of the transcranial alternating current equipment based on the point location matching result and the signal synchronization degree. The point location matching degree can reflect whether the position of the alternating current stimulation part is matched with the target brain point location or not, and the signal synchronization degree can reflect the signal synchronization degree between different target brain point locations, so that the stimulation effect of the transcranial alternating current equipment can be accurately determined from multiple dimensions based on the point location matching result and the signal synchronization degree, and the use requirement of a user is met.
Description
Technical Field
The invention relates to the technical field of transcranial alternating current equipment, in particular to a stimulation effect evaluation method, device, terminal and medium of transcranial alternating current equipment.
Background
Currently, transcranial alternating current devices have been widely used for users with defective memory function. the tACS (transcranial alternating current) can selectively correct brain electrical signals of preset points of the cerebral cortex, and further influences the memory function of a user. When the existing transcranial alternating current equipment is used by a user, micro-electric stimulation is basically performed based on a single stimulation mode or fixed electric stimulation parameters and the like, and when the stimulation duration reaches a preset duration, the transcranial alternating current equipment stops working. Therefore, the transcranial alternating current equipment in the prior art does not have the function of evaluating or feeding back the stimulation effect, so that a user cannot know whether the stimulation work of the transcranial alternating current equipment is effective or not in time, and the use requirement of the user cannot be met.
Accordingly, there is a need for improvement and advancement in the art.
Disclosure of Invention
The invention aims to solve the technical problems that a user cannot know whether the stimulation work of the transcranial alternating current equipment is effective or not in time and cannot meet the use requirement of the user because the transcranial alternating current equipment in the prior art does not have the function of evaluating or feeding back the stimulation effect.
In order to solve the technical problems, the technical scheme adopted by the invention is as follows:
in a first aspect, the present invention provides a stimulation effect evaluation method of a transcranial alternating current device, where the transcranial alternating current device includes a signal detection portion for detecting an electroencephalogram signal and an alternating current stimulation portion for performing micro-electric stimulation on a target brain point location by an alternating current signal, the stimulation effect evaluation method of the transcranial alternating current device includes:
acquiring positioning information of an alternating current stimulation part of transcranial alternating current equipment in a brain region, and determining a point location matching result of the alternating current stimulation part based on the positioning information;
after the alternating current stimulation part stimulates the target brain points, acquiring real-time brain electrical signals detected by a signal detection part of the transcranial alternating current equipment at a plurality of target brain points, and determining the signal synchronization degree of the real-time brain electrical signals based on the real-time brain electrical signals, wherein the signal synchronization degree is used for reflecting the signal synchronization degree among different target brain points;
and determining the stimulation effect of the transcranial alternating current equipment based on the point location matching result and the signal synchronization degree.
In one implementation manner, the determining, based on the positioning information, a point location matching result of the ac stimulation unit includes:
acquiring use requirement information, determining functional scene information based on the use requirement information, and determining a target brain point position corresponding to the functional scene information based on the functional scene information;
and matching the positioning information with the target brain point location, and determining the point location matching result.
In one implementation, the matching the positioning information with the target brain point location, determining the point location matching result includes:
determining a circular area corresponding to the target brain point position by taking the target brain point position as a circle center and taking a preset distance as a radius;
if the point location corresponding to the positioning information is completely located in the circular area, determining that the point location matching result is successful in matching;
if the point location corresponding to the positioning information is completely located outside the circular area, determining that the point location matching result is a matching failure;
and if the point corresponding to the positioning information is positioned on the boundary of the circular area, determining that the point matching result is successful.
In one implementation, the determining, based on the real-time electroencephalogram signal, a signal synchronization degree of the real-time electroencephalogram signal includes:
drawing an electroencephalogram waveform chart of the real-time electroencephalogram corresponding to each target brain point based on the real-time electroencephalogram signals;
determining amplitude information and frequency information corresponding to the real-time brain electrical signals of each target brain point based on the brain electrical signal waveform diagrams of different target brain point positions;
the signal synchronization is determined based on the amplitude information and the frequency information.
In one implementation, the determining the signal synchronization based on the amplitude information and the frequency information includes:
determining the same amplitude interval and the same frequency interval of the real-time brain electrical signals of different target brain points based on the amplitude information and the frequency information corresponding to the real-time brain electrical signals of the different target brain points;
intersection is taken between the interval with the same amplitude and the interval with the same frequency, and the signal synchronization interval is obtained;
and determining the proportion information of the signal synchronization interval to a complete electroencephalogram signal fluctuation period, and taking the proportion information as the signal synchronization degree.
In one implementation, the determining the stimulation effect of the transcranial alternating current device based on the point location matching result and the signal synchronization degree includes:
if the point location matching result is that the matching is successful and the signal synchronism exceeds a preset value, outputting effect feedback information, wherein the effect feedback information is used for feeding back the stimulation effect of the transcranial alternating current equipment to meet the user requirement;
and if the point location matching result is that the matching is successful and the signal synchronization degree is smaller than the preset value, outputting stimulation prompt information, controlling the alternating current stimulation part to adjust the stimulation current intensity based on the stimulation prompt information, and stimulating by using the adjusted stimulation current intensity.
In one implementation, the controlling the ac stimulation unit to adjust the stimulation current intensity based on the stimulation prompt information and perform stimulation using the adjusted stimulation current intensity includes:
when the stimulation prompt information is received, an asynchronous interval is obtained, wherein the asynchronous interval is the sum of intervals with different amplitudes and/or intervals with different frequencies of the real-time brain signals of different target brain points;
and determining current adjustment data based on the asynchronous interval, and performing step adjustment on the stimulation current intensity according to a preset time interval based on the current adjustment data.
In a second aspect, an embodiment of the present invention further provides a stimulation effect evaluation device of a transcranial alternating current device, where the transcranial alternating current device includes a signal detection portion and an alternating current stimulation portion, the signal detection portion is configured to detect an electroencephalogram signal, the alternating current stimulation portion is configured to perform micro-electrical stimulation on a target brain point location through the alternating current signal, and the stimulation effect evaluation device of the transcranial alternating current device includes:
the point location matching module is used for acquiring the positioning information of the alternating current stimulation part of the transcranial alternating current equipment in the brain region and determining the point location matching result of the alternating current stimulation part based on the positioning information;
the signal synchronization module is used for acquiring real-time brain electrical signals detected by the signal detection part of the transcranial alternating current equipment at a plurality of target brain points after the alternating current stimulation part stimulates the target brain points, determining the signal synchronization degree of the real-time brain electrical signals based on the real-time brain electrical signals, and the signal synchronization degree is used for reflecting the signal synchronization degree among different target brain points;
and the effect determining module is used for determining the stimulation effect of the transcranial alternating current equipment based on the point location matching result and the signal synchronization degree.
In a third aspect, an embodiment of the present invention further provides a terminal, where the terminal includes a memory, a processor, and a stimulation effect evaluation program of a transcranial alternating current device stored in the memory and capable of running on the processor, and when the processor executes the stimulation effect evaluation program of the transcranial alternating current device, the processor implements the steps of the stimulation effect evaluation method of the transcranial alternating current device according to any one of the above schemes.
In a fourth aspect, an embodiment of the present invention further provides a computer readable storage medium, where the computer readable storage medium stores a stimulation effect evaluation program of a transcranial ac power device, where the stimulation effect evaluation program of the transcranial ac power device, when executed by a processor, implements the steps of the stimulation effect evaluation method of the transcranial ac power device according to any one of the above schemes.
The beneficial effects are that: compared with the prior art, the invention provides a stimulation effect evaluation method of transcranial alternating current equipment, which comprises the steps of firstly obtaining positioning information of an alternating current stimulation part of the transcranial alternating current equipment in a brain area, and determining a point location matching result of the alternating current stimulation part based on the positioning information. Then, after the alternating current stimulation part stimulates the target brain points, acquiring real-time brain electrical signals detected by the signal detection part of the transcranial alternating current equipment at a plurality of target brain points, and determining the signal synchronization degree of the real-time brain electrical signals based on the real-time brain electrical signals, wherein the signal synchronization degree is used for reflecting the signal synchronization degree among different target brain points. And finally, determining the stimulation effect of the transcranial alternating current equipment based on the point location matching result and the signal synchronization degree. The point location matching degree can reflect whether the position of the alternating current stimulation part is matched with the target brain point location or not, and the signal synchronization degree can reflect the signal synchronization degree between different target brain point locations, so that the stimulation effect of the transcranial alternating current equipment can be accurately determined from multiple dimensions based on the point location matching result and the signal synchronization degree, and the use requirement of a user is met.
Drawings
Fig. 1 is a flowchart of a specific implementation of a stimulation effect evaluation method of a transcranial alternating current device according to an embodiment of the present invention.
Fig. 2 is a functional schematic diagram of a stimulation effect evaluation device of a transcranial alternating current device according to an embodiment of the present invention.
Fig. 3 is a schematic block diagram of a terminal according to an embodiment of the present invention.
Detailed Description
In order to make the objects, technical solutions and effects of the present invention clearer and more specific, the present invention will be described in further detail below with reference to the accompanying drawings and examples. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the scope of the invention.
The embodiment provides a stimulation effect evaluation method of transcranial alternating current equipment, and based on the method of the embodiment, positioning information of an alternating current stimulation part of the transcranial alternating current equipment in a brain area is firstly obtained, and based on the positioning information, a point location matching result of the alternating current stimulation part is determined. Then, after the alternating current stimulation part stimulates the target brain points, acquiring real-time brain electrical signals detected by the signal detection part of the transcranial alternating current equipment at a plurality of target brain points, and determining the signal synchronization degree of the real-time brain electrical signals based on the real-time brain electrical signals, wherein the signal synchronization degree is used for reflecting the signal synchronization degree among different target brain points. And finally, determining the stimulation effect of the transcranial alternating current equipment based on the point location matching result and the signal synchronization degree. The point location matching degree of the embodiment can reflect whether the position of the alternating current stimulation part is matched with the target brain point location or not, and the signal synchronization degree can reflect the signal synchronization degree between different target brain point locations, so that the stimulation effect of the transcranial alternating current equipment can be accurately determined from multiple dimensions based on the point location matching result and the signal synchronization degree, and the use requirement of a user is met.
The transcranial alternating current device of the embodiment can be applied to a terminal, and the terminal can be a preset mobile terminal, such as a mobile phone or a tablet computer, or can also be an intelligent device, such as a computer or an intelligent television. In a specific application, the terminal of this embodiment is connected to a transcranial alternating current device. The transcranial alternating current equipment comprises a signal detection part and an alternating current stimulation part, wherein the signal detection part is used for detecting an electroencephalogram signal, and the alternating current stimulation part is used for carrying out micro-electric stimulation on a target brain point through the alternating current signal. Through researches, tACS (transcranial alternating current) can be used for the memory capacity, concentration capacity and the like of covered users, and the difference of defects of individuals is different due to different use requirements of different users. Some users have memory defects, and some users have hyperactivity defects (marked by hyperactivity and actigraphy), so that different functional scene information can be analyzed by the transcranial alternating current equipment according to the embodiment aiming at different users, and then target brain points are analyzed, so that alternating current stimulation is carried out aiming at the target brain points, and personalized and targeted stimulation effects are achieved.
Specifically, as shown in fig. 1, the stimulation effect evaluation method of the transcranial alternating current device of the present embodiment includes the steps of:
and step S100, acquiring positioning information of an alternating current stimulation part of the transcranial alternating current equipment in a brain region, and determining a point location matching result of the alternating current stimulation part based on the positioning information.
When the transcranial alternating current equipment of the embodiment works, the alternating current stimulation part is contacted with a certain position of a brain region, and then micro-electric stimulation is carried out on the contacted position. However, when the stimulation position of the ac stimulation portion is different from the target brain point, the stimulation effect of the transcranial ac device is affected. Therefore, the embodiment can acquire the positioning information of the alternating current stimulation part of the transcranial alternating current equipment in the brain region, and then determine the point position matching result of the alternating current stimulation part based on the positioning information, wherein the point position matching result is used for reflecting whether the stimulation position of the alternating current stimulation part of the transcranial alternating current equipment is the same as the target brain point position.
In one implementation manner, when determining a point location matching result, the embodiment includes the following steps:
step S101, acquiring the use requirement information, determining functional scene information based on the use requirement information, and determining a target brain point position corresponding to the functional scene information based on the functional scene information;
step S102, matching the positioning information with the target brain point location, and determining the point location matching result.
The terminal of this embodiment first analyzes the user requirement information of the user, where the user requirement information can determine the group of the user, the defect existing in the user, and the defect that the user needs to improve, for example, the memory defect existing in the user a, and the concentration defect existing in the user B, so that the user requirement information of the user a and the user B are different. Further, the terminal may analyze corresponding functional scenario information based on the user's use requirement information, where the functional scenario information reflects a current use function of the transcranial ac power device, for example, a user has a memory defect, so that the corresponding functional scenario information corresponds to a functional scenario with improved memory defect, and B user has a concentration defect, so that the corresponding functional scenario information corresponds to a functional scenario with improved concentration defect. According to research, it is found that alternating current stimulation is performed on different areas of the brain of the user to improve different defects of the user, so that the terminal of the embodiment can determine the corresponding target brain point based on the functional scene information.
In one implementation, the transcranial alternating current device of the present embodiment may receive voice instruction information input by a user, which may be spoken by the user. When the transcranial alternating current equipment receives the voice instruction information, the voice instruction information can be subjected to semantic recognition to obtain semantic information, and the semantic information reflects the operation intention of a user, namely the defect of which aspect the user wants to use the transcranial alternating current equipment to improve is reflected. At this time, the terminal can determine the information of the use requirement based on the semantic information, and the defect of the user and the defect to be improved are defined. Further, since the use requirement information is determined based on semantic information, which is recognized from the voice instruction information, the semantic information is text information for reflecting the true meaning corresponding to the voice instruction information. Based on the keyword extraction, the terminal can extract the keyword from the use requirement information to obtain the keyword information. The keyword information is a keyword for reflecting the true semantics, that is, a keyword reflecting a defect that the user needs to improve. Then, the embodiment may obtain a preset function database, where a plurality of vocabulary information for reflecting the function scenario is stored in the function database. Therefore, when the keyword information is matched with the function database, the function scene information is obtained, wherein the function scene information is the currently used function which needs to be started on the transcranial alternating current equipment, and the defect that the user corresponding to the currently used function needs to be improved is overcome. For example, when the keyword information is a keyword related to improving the memory level, the corresponding functional scene information can be matched based on the functional database to be the memory improving functional scene. When the keyword information is related to improving the concentration level, the corresponding functional scene information can be matched based on the functional database to be the concentration improving functional scene at this time, and further, if the functional scene information is the memory improving functional scene, the embodiment can determine that the target brain point is the temporal lobe and/or the frontal lobe of the brain. And when the functional scene information is a concentration improvement functional scene, determining the target brain point position as a frontal lobe of the brain. In this embodiment, there are a plurality of target brain points, and when performing electroencephalogram detection and micro-electrical stimulation, electroencephalogram detection and micro-electrical stimulation can be performed on these target brain points respectively.
After the target brain point is obtained, the embodiment can match the target brain point with the positioning information of the alternating current stimulation part in the brain region to obtain a point matching result. Specifically, in this embodiment, the target brain point is used as a center, and a preset distance is used as a radius to determine a circular area corresponding to the target brain point. The circular area reflects an area around the point location of the target brain, if the point location corresponding to the positioning information is completely located within the circular area, the point location matching result is determined to be successful in matching, and at the moment, the alternating current stimulation part performs micro-electrical stimulation on the point location corresponding to the positioning information and is consistent with the effect of performing micro-electrical stimulation on the point location of the target brain. If the point location corresponding to the positioning information is completely located outside the circular area, determining that the point location matching result is a matching failure, that is, the point location corresponding to the positioning information is different from the target brain point location, so that the effect of the alternating current stimulation part in performing micro-electrical stimulation on the point location corresponding to the positioning information is different from that of performing micro-electrical stimulation on the target brain point location. In addition, if the point corresponding to the positioning information is located on the boundary of the circular area, the point matching result is determined to be successful. According to the embodiment, the target brain point location and the positioning information of the alternating current stimulation part in the brain region can be accurately matched through the principle of regional comparison, and a point location matching result is obtained.
Step 200, after the alternating current stimulation part stimulates the target brain points, acquiring real-time brain electrical signals detected by the signal detection part of the transcranial alternating current equipment at a plurality of target brain points, and determining the signal synchronization degree of the real-time brain electrical signals based on the real-time brain electrical signals, wherein the signal synchronization degree is used for reflecting the signal synchronization degree among different target brain points.
After the alternating current stimulation part stimulates the target brain points, the real-time brain electrical signals detected by the signal detection part of the transcranial alternating current equipment at the plurality of target brain points are obtained, and the real-time brain electrical signals at the moment reflect brain electrical signals after micro-electrical stimulation. In order to evaluate the stimulation effect of the micro-electrical stimulation, the embodiment can determine whether the brain electrical signals between different target brain points are synchronous or not based on the acquired real-time brain electrical signals, namely, the signal synchronization degree is obtained, and the signal synchronization degree is used for reflecting the signal synchronization degree between the different target brain points.
In one implementation, the method in this embodiment includes the following steps when determining the signal synchronization degree:
step S201, drawing an electroencephalogram waveform diagram of the real-time electroencephalogram corresponding to each target brain point based on the real-time electroencephalogram signals;
step S202, determining amplitude information and frequency information corresponding to the real-time brain electrical signals of each target brain point based on the brain electrical signal waveform diagrams of different target brain point;
step S203, determining the signal synchronization degree based on the amplitude information and the frequency information.
Specifically, in this embodiment, after the real-time electroencephalogram signal corresponding to each target brain point location is collected, the collected electroencephalogram signal is drawn into an electroencephalogram signal waveform chart. Amplitude information and frequency information can be reflected from the electroencephalogram waveform. Then, the terminal can compare the amplitude information corresponding to the real-time brain electrical signals of different target brain points and the frequency information corresponding to the real-time brain electrical signals of different target brain points to determine the amplitude dissimilarity information and the frequency dissimilarity information. The amplitude difference information can reflect the synchronous and asynchronous intervals of the amplitude information corresponding to the real-time brain electrical signals of different target brain points, and the frequency difference information can reflect the synchronous and asynchronous intervals of the frequency information corresponding to the real-time brain electrical signals of different target brain points. Therefore, the terminal can determine the same amplitude interval and the same frequency interval of the electroencephalogram signals of different target brain points based on the amplitude dissimilarity information and the frequency dissimilarity information. And then, the interval with the same amplitude and the interval with the same frequency are intersected to obtain the signal synchronization interval. When the real-time electroencephalogram signal at the target brain point position of the user is in the signal synchronization interval, the electroencephalogram signal has high cooperativity, and the electroencephalogram signal is stable, so that the method has remarkable advantages for improving the memory and the concentration of the user. Next, the embodiment obtains a complete electroencephalogram signal fluctuation period, and then determines proportion information of the signal synchronization interval in the complete electroencephalogram signal fluctuation period, and takes the proportion information as the signal synchronization degree. If the proportion information of the signal synchronization interval to a complete electroencephalogram signal fluctuation period is larger, the signal synchronization degree is larger. On the contrary, if the proportion information of the signal synchronization interval to a complete electroencephalogram signal fluctuation period is smaller, the signal synchronization degree is smaller.
And step 300, determining the stimulation effect of the transcranial alternating current equipment based on the point location matching result and the signal synchronization degree.
When the point location matching result and the signal synchronization degree are determined, the point location matching degree can reflect whether the position of the alternating current stimulation part is matched with the target brain point location or not, and the signal synchronization degree can reflect the signal synchronization degree between different target brain points, so that the stimulation effect of the transcranial alternating current equipment can be accurately determined from multiple dimensions based on the point location matching result and the signal synchronization degree, and the use requirement of a user is met.
In one implementation, the method in this embodiment, when determining the stimulation effect, includes the following steps:
step S301, if the point location matching result is that the matching is successful and the signal synchronism exceeds a preset value, outputting effect feedback information, wherein the effect feedback information is used for feeding back the stimulation effect of the transcranial alternating current equipment to meet the user requirement;
and step S302, if the point location matching result is that the matching is successful and the signal synchronization degree is smaller than the preset value, outputting stimulation prompt information, controlling the alternating current stimulation part to adjust the stimulation current intensity based on the stimulation prompt information, and stimulating by using the adjusted stimulation current intensity.
Specifically, in this embodiment, if it is determined that the point location matching result is successful, it is indicated that the position of the ac stimulation unit is located at the target brain point location at this time, and if the signal synchronization degree exceeds a preset value, for example, the preset value is 0.95, it is indicated that the proportion information of the signal synchronization interval in a complete electroencephalogram signal fluctuation period is very large at this time, that is, it is indicated that the amplitude information and the frequency information of the real-time electroencephalogram signals of different target brain points are basically synchronized at this time, then effect feedback information can be output, where the effect feedback information is used to feed back that the stimulation effect of the transcranial ac device meets the user requirement, that is, it is indicated that the stimulation effect at this time is relatively good. If the point location matching result is successful and the signal synchronization degree is smaller than the preset value, the proportion information of the signal synchronization interval occupying a complete electroencephalogram signal fluctuation period is smaller, and the fact that a plurality of unsynchronized intervals exist between the amplitude information and the frequency information of the real-time electroencephalogram signals of different target brain points at the moment is indicated, and the fact that the stimulation effect at the moment does not reach the expected effect is indicated, and the amplitude information and the frequency information of the real-time electroencephalogram signals of different target brain points are not synchronized, so that the terminal outputs stimulation prompt information. And then controlling the alternating current stimulation part to adjust the stimulation current intensity based on the stimulation prompt information, and using the adjusted stimulation current intensity to stimulate. In another implementation manner, if the point location matching result is a matching failure, it is indicated that the position of the ac stimulation portion is different from the target brain point location at this time, so that the stimulation effect of the ac stimulation portion when performing micro-electrical stimulation on the point location corresponding to the positioning information cannot meet the user requirement, and the terminal can directly output the position adjustment information at this time to prompt the user to perform point location adjustment.
In addition, after receiving the stimulation prompt information, the embodiment acquires an unsynchronized interval, where the unsynchronized interval is the sum of different amplitude intervals and/or different frequency intervals of the real-time electroencephalogram signals of different target brain points, that is, the amplitude different intervals and the frequency different intervals are combined to obtain the unsynchronized interval. The non-synchronous interval in the real-time electroencephalogram signal is the interval needing to be adjusted, and because the proportion information of the signal synchronous interval accounting for a complete electroencephalogram signal fluctuation period is determined in the embodiment, the proportion information of the non-synchronous interval accounting for the complete electroencephalogram signal fluctuation period can be determined as well. Next, the present embodiment may determine current adjustment data based on the unsynchronized section. In this embodiment, the unsynchronized interval is proportional to the current adjustment data, and if the unsynchronized interval occupies a larger proportion of the entire electroencephalogram signal fluctuation period, the current adjustment data is larger, and the current adjustment data is the data that needs to be increased in the stimulation current intensity. After determining the current adjustment data, the embodiment can perform step adjustment on the stimulation current intensity according to a preset time interval based on the current adjustment data, so as to ensure that the stimulation current intensity is slowly increased and discomfort is not caused to a user.
Based on the above embodiments, the present invention also provides a stimulation effect evaluation apparatus of a transcranial alternating current device, the transcranial alternating current device including a signal detection portion for detecting an electroencephalogram signal and an alternating current stimulation portion for performing micro-electrical stimulation on a target brain point by an alternating current signal, as shown in fig. 2, the stimulation effect evaluation apparatus of a transcranial alternating current device including: the device comprises a point location matching module 10, a signal synchronization module 20 and an effect determination module 30. Specifically, the point location matching module 10 is configured to obtain positioning information of an ac stimulation unit of a transcranial ac device in a brain region, and determine a point location matching result of the ac stimulation unit based on the positioning information. The signal synchronization module 20 is configured to obtain, after the ac stimulation unit stimulates the target brain points, real-time brain electrical signals detected by the signal detection unit of the transcranial ac device at the plurality of target brain points, and determine, based on the real-time brain electrical signals, signal synchronization degrees of the real-time brain electrical signals, where the signal synchronization degrees are used to reflect signal synchronization degrees between different target brain points. The effect determining module 30 is configured to determine a stimulation effect of the transcranial ac power device based on the point location matching result and the signal synchronization degree.
In one implementation, the point location matching module 10 includes:
the point position determining unit is used for acquiring the use requirement information, determining functional scene information based on the use requirement information and determining a target brain point position corresponding to the functional scene information based on the functional scene information;
and the matching determining unit is used for matching the positioning information with the target brain point location and determining the point location matching result.
In one implementation, the matching determination unit includes:
the region determining subunit is used for determining a circular region corresponding to the target brain point position by taking the target brain point position as a circle center and taking a preset distance as a radius;
the first matching subunit is used for determining that the point location matching result is successful in matching if the point location corresponding to the positioning information is completely located in the circular area;
the second matching subunit is used for determining that the point location matching result is failed in matching if the point location corresponding to the positioning information is completely located outside the circular area;
and the third matching subunit is used for determining that the point location matching result is successful in matching if the point location corresponding to the positioning information is located on the boundary of the circular area.
In one implementation, the signal synchronization module 20 includes:
the waveform drawing unit is used for drawing an electroencephalogram waveform diagram of the real-time electroencephalogram corresponding to each target brain point based on the real-time electroencephalogram signals;
the signal analysis unit is used for determining amplitude information and frequency information corresponding to the real-time brain electrical signals of each target brain point based on the brain electrical signal waveform diagrams of different target brain point;
and the synchronization degree determining unit is used for determining the signal synchronization degree based on the amplitude information and the frequency information.
In one implementation, the synchronization degree determining unit includes:
the interval analysis subunit is used for determining the same intervals of the amplitudes and the same intervals of the frequencies of the real-time brain electrical signals of the different target brain points based on the amplitude information and the frequency information corresponding to the real-time brain electrical signals of the different target brain points;
a synchronization interval determining subunit, configured to obtain the signal synchronization interval by intersecting the interval with the same amplitude and the interval with the same frequency;
and the proportion information determining subunit is used for determining proportion information of the signal synchronization interval to a complete electroencephalogram signal fluctuation period and taking the proportion information as the signal synchronization degree.
In one implementation, the effect determination module includes:
the effect feedback unit is used for outputting effect feedback information if the point location matching result is successful in matching and the signal synchronism exceeds a preset value, and the effect feedback information is used for feeding back the stimulation effect of the transcranial alternating current equipment to meet the user requirement;
and the stimulation prompt unit is used for outputting stimulation prompt information if the point location matching result is successful and the signal synchronism is smaller than the preset value, controlling the alternating current stimulation part to adjust the stimulation current intensity based on the stimulation prompt information and stimulating by using the adjusted stimulation current intensity.
In one implementation, the stimulation prompt unit includes:
the asynchronous analysis subunit is used for acquiring an asynchronous interval after receiving the stimulation prompt information, wherein the asynchronous interval is the sum of intervals with different amplitudes and/or intervals with different frequencies of the real-time brain electrical signals of different target brain points;
and the current intensity adjustment subunit is used for determining current adjustment data based on the asynchronous interval and carrying out step adjustment on the stimulation current intensity according to a preset time interval based on the current adjustment data.
The working principle of each module in the stimulation effect evaluation device of the transcranial alternating current device in this embodiment is the same as the principle of each step in the above method embodiment, and will not be described here again.
Based on the above embodiment, the present invention also provides a terminal, and a schematic block diagram of the terminal may be shown in fig. 3. The terminal may include one or more processors 100 (only one shown in fig. 3), a memory 101, and a computer program 102 stored in the memory 101 and executable on the one or more processors 100, for example, a stimulation effect evaluation program for a transcranial alternating current device. The one or more processors 100, when executing the computer program 102, may implement the various steps in an embodiment of a stimulation effect evaluation method for a transcranial alternating current device. Alternatively, the one or more processors 100, when executing the computer program 102, may implement the functions of the various modules/units in the stimulation effect evaluation device embodiment of the transcranial alternating current device, without limitation.
In one embodiment, the processor 100 may be a central processing unit (Central Processing Unit, CPU), but may also be other general purpose processors, digital signal processors (Digital Signal Processor, DSP), application specific integrated circuits (Application Specific Integrated Circuit, ASIC), off-the-shelf programmable gate arrays (Field-Programmable Gate Array, FPGA) or other programmable logic devices, discrete gate or transistor logic devices, discrete hardware components, or the like. A general purpose processor may be a microprocessor or the processor may be any conventional processor or the like.
In one embodiment, the memory 101 may be an internal storage unit of the electronic device, such as a hard disk or a memory of the electronic device. The memory 101 may also be an external storage device of the electronic device, such as a plug-in hard disk, a Smart Media Card (SMC), a Secure Digital (SD) card, a flash card (flash card) or the like, which are provided on the electronic device. Further, the memory 101 may also include both an internal storage unit and an external storage device of the electronic device. The memory 101 is used to store computer programs and other programs and data required by the terminal. The memory 101 may also be used to temporarily store data that has been output or is to be output.
It will be appreciated by those skilled in the art that the functional block diagram shown in fig. 3 is merely a block diagram of some of the structures associated with the present inventive arrangements and is not limiting of the terminal to which the present inventive arrangements may be applied, as a specific terminal may include more or less components than those shown, or may be combined with some components, or may have a different arrangement of components.
Those skilled in the art will appreciate that implementing all or part of the above-described methods may be accomplished by way of a computer program, which may be stored on a non-transitory computer readable storage medium, that when executed may comprise the steps of the embodiments of the methods described above. Any reference to memory, storage, operational database, or other medium used in embodiments provided herein may include non-volatile and/or volatile memory. The nonvolatile memory can include Read Only Memory (ROM), programmable ROM (PROM), electrically Programmable ROM (EPROM), electrically Erasable Programmable ROM (EEPROM), or flash memory. Volatile memory can include Random Access Memory (RAM) or external cache memory. By way of illustration and not limitation, RAM is available in a variety of forms such as Static RAM (SRAM), dynamic RAM (DRAM), synchronous DRAM (SDRAM), dual operation data rate SDRAM (DDRSDRAM), enhanced SDRAM (ESDRAM), synchronous Link DRAM (SLDRAM), memory bus direct RAM (RDRAM), direct memory bus dynamic RAM (DRDRAM), and memory bus dynamic RAM (RDRAM), among others.
Finally, it should be noted that: the above embodiments are only for illustrating the technical solution of the present invention, and are not limiting; although the invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical scheme described in the foregoing embodiments can be modified or some technical features thereof can be replaced by equivalents; such modifications and substitutions do not depart from the spirit and scope of the technical solutions of the embodiments of the present invention.
Claims (10)
1. A stimulation effect evaluation method of a transcranial alternating current device, characterized in that the transcranial alternating current device comprises a signal detection part and an alternating current stimulation part, the signal detection part is used for detecting brain electrical signals, the alternating current stimulation part is used for performing micro-electrical stimulation on a target brain point location through the alternating current electrical signals, and the stimulation effect evaluation method of the transcranial alternating current device comprises the following steps:
acquiring positioning information of an alternating current stimulation part of transcranial alternating current equipment in a brain region, and determining a point location matching result of the alternating current stimulation part based on the positioning information;
after the alternating current stimulation part stimulates the target brain points, acquiring real-time brain electrical signals detected by a signal detection part of the transcranial alternating current equipment at a plurality of target brain points, and determining the signal synchronization degree of the real-time brain electrical signals based on the real-time brain electrical signals, wherein the signal synchronization degree is used for reflecting the signal synchronization degree among different target brain points;
and determining the stimulation effect of the transcranial alternating current equipment based on the point location matching result and the signal synchronization degree.
2. The stimulation effect evaluation method of the transcranial alternating current (ac) power apparatus according to claim 1, wherein the determining the point location matching result of the ac power stimulation unit based on the positioning information comprises:
acquiring use requirement information, determining functional scene information based on the use requirement information, and determining a target brain point position corresponding to the functional scene information based on the functional scene information;
and matching the positioning information with the target brain point location, and determining the point location matching result.
3. The method for evaluating the stimulation effect of a transcranial alternating current device according to claim 1, wherein the matching the positioning information with the target brain point location, determining the point location matching result, comprises:
determining a circular area corresponding to the target brain point position by taking the target brain point position as a circle center and taking a preset distance as a radius;
if the point location corresponding to the positioning information is completely located in the circular area, determining that the point location matching result is successful in matching;
if the point location corresponding to the positioning information is completely located outside the circular area, determining that the point location matching result is a matching failure;
and if the point corresponding to the positioning information is positioned on the boundary of the circular area, determining that the point matching result is successful.
4. The method for evaluating the stimulation effect of a transcranial alternating current device according to claim 1, wherein the determining the signal synchronism of the real-time brain electrical signal based on the real-time brain electrical signal comprises:
drawing an electroencephalogram waveform chart of the real-time electroencephalogram corresponding to each target brain point based on the real-time electroencephalogram signals;
determining amplitude information and frequency information corresponding to the real-time brain electrical signals of each target brain point based on the brain electrical signal waveform diagrams of different target brain point positions;
the signal synchronization is determined based on the amplitude information and the frequency information.
5. The method for evaluating the stimulation effect of a transcranial alternating current device according to claim 4, wherein the determining the degree of signal synchronization based on the amplitude information and frequency information comprises:
determining the same amplitude interval and the same frequency interval of the real-time brain electrical signals of different target brain points based on the amplitude information and the frequency information corresponding to the real-time brain electrical signals of the different target brain points;
intersection is taken between the interval with the same amplitude and the interval with the same frequency, and the signal synchronization interval is obtained;
and determining the proportion information of the signal synchronization interval to a complete electroencephalogram signal fluctuation period, and taking the proportion information as the signal synchronization degree.
6. The method for evaluating the stimulation effect of a transcranial alternating current device according to claim 5, wherein the determining the stimulation effect of the transcranial alternating current device based on the point location matching result and the degree of signal synchronization comprises:
if the point location matching result is that the matching is successful and the signal synchronism exceeds a preset value, outputting effect feedback information, wherein the effect feedback information is used for feeding back the stimulation effect of the transcranial alternating current equipment to meet the user requirement;
and if the point location matching result is that the matching is successful and the signal synchronization degree is smaller than the preset value, outputting stimulation prompt information, controlling the alternating current stimulation part to adjust the stimulation current intensity based on the stimulation prompt information, and stimulating by using the adjusted stimulation current intensity.
7. The stimulation effect evaluation method of the transcranial alternating current device according to claim 6, wherein the controlling the alternating current stimulation section to adjust the stimulation current intensity based on the stimulation prompt information and to perform stimulation using the adjusted stimulation current intensity comprises:
when the stimulation prompt information is received, an asynchronous interval is obtained, wherein the asynchronous interval is the sum of intervals with different amplitudes and/or intervals with different frequencies of the real-time brain signals of different target brain points;
and determining current adjustment data based on the asynchronous interval, and performing step adjustment on the stimulation current intensity according to a preset time interval based on the current adjustment data.
8. The utility model provides a stimulation effect evaluation device of transcranial alternating current equipment, its characterized in that, transcranial alternating current equipment includes signal detection part and alternating current stimulation portion, signal detection part is used for detecting the brain electrical signal, alternating current stimulation portion is used for carrying out the micro-electric stimulation to target brain point location through alternating current electrical signal, stimulation effect evaluation device of transcranial alternating current equipment includes:
the point location matching module is used for acquiring the positioning information of the alternating current stimulation part of the transcranial alternating current equipment in the brain region and determining the point location matching result of the alternating current stimulation part based on the positioning information;
the signal synchronization module is used for acquiring real-time brain electrical signals detected by the signal detection part of the transcranial alternating current equipment at a plurality of target brain points after the alternating current stimulation part stimulates the target brain points, determining the signal synchronization degree of the real-time brain electrical signals based on the real-time brain electrical signals, and the signal synchronization degree is used for reflecting the signal synchronization degree among different target brain points;
and the effect determining module is used for determining the stimulation effect of the transcranial alternating current equipment based on the point location matching result and the signal synchronization degree.
9. A terminal comprising a memory, a processor and a stimulation effect evaluation program of a transcranial alternating current device stored in the memory and operable on the processor, when executing the stimulation effect evaluation program of a transcranial alternating current device, performing the steps of the stimulation effect evaluation method of a transcranial alternating current device as claimed in any one of claims 1-7.
10. A computer-readable storage medium, characterized in that the computer-readable storage medium has stored thereon a stimulation effect evaluation program of a transcranial alternating current device, which, when executed by a processor, implements the steps of the stimulation effect evaluation method of a transcranial alternating current device as claimed in any one of claims 1-7.
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