CN114642432A - Attention assessment method, device, equipment and storage medium - Google Patents
Attention assessment method, device, equipment and storage medium Download PDFInfo
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- CN114642432A CN114642432A CN202210133697.4A CN202210133697A CN114642432A CN 114642432 A CN114642432 A CN 114642432A CN 202210133697 A CN202210133697 A CN 202210133697A CN 114642432 A CN114642432 A CN 114642432A
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B5/00—Measuring for diagnostic purposes; Identification of persons
- A61B5/16—Devices for psychotechnics; Testing reaction times ; Devices for evaluating the psychological state
- A61B5/168—Evaluating attention deficit, hyperactivity
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B5/00—Measuring for diagnostic purposes; Identification of persons
- A61B5/16—Devices for psychotechnics; Testing reaction times ; Devices for evaluating the psychological state
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B5/00—Measuring for diagnostic purposes; Identification of persons
- A61B5/24—Detecting, measuring or recording bioelectric or biomagnetic signals of the body or parts thereof
- A61B5/316—Modalities, i.e. specific diagnostic methods
- A61B5/369—Electroencephalography [EEG]
- A61B5/372—Analysis of electroencephalograms
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B5/00—Measuring for diagnostic purposes; Identification of persons
- A61B5/72—Signal processing specially adapted for physiological signals or for diagnostic purposes
- A61B5/7235—Details of waveform analysis
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B5/00—Measuring for diagnostic purposes; Identification of persons
- A61B5/72—Signal processing specially adapted for physiological signals or for diagnostic purposes
- A61B5/7235—Details of waveform analysis
- A61B5/7246—Details of waveform analysis using correlation, e.g. template matching or determination of similarity
Abstract
The invention relates to the technical field of attention assessment, in particular to an attention assessment method, device, equipment and storage medium. On one hand, the invention adopts the brain wave signal to represent the attention of the user to be evaluated, and the brain wave is taken as a physiological parameter of the user, thereby accurately and objectively reflecting the attention of the user to be evaluated. On the other hand, the invention compares the instantaneous brain wave signals of the user to be evaluated with the instantaneous brain wave reference signals, and when the two signals are very close, the attention degree of the user at the moment is indicated to be larger, otherwise, the attention degree is smaller. In conclusion, the invention adopts the instantaneous brain wave signals of the user to evaluate the instantaneous attention degree of the user, and the evaluation result is objective and accurate.
Description
Technical Field
The invention relates to the technical field of attention assessment, in particular to an attention assessment method, device, equipment and storage medium.
Background
When performing attention training, the attention of the user needs to be evaluated first, and a training method suitable for the user is selected according to the evaluation result. In the prior art, the attention degree of a user is usually judged by observing the facial micro-expression of the user, the attention degree of the user is judged through subjective consciousness, the accuracy is poor, and different observers obtain different evaluation results aiming at the same user.
In summary, the accuracy of the attention assessment result in the prior art is low.
Thus, there is a need for improvements and enhancements in the art.
Disclosure of Invention
In order to solve the technical problems, the invention provides an attention assessment method, an attention assessment device, attention assessment equipment and a storage medium, and solves the problem that the accuracy of the attention assessment result is low in the prior art.
In order to achieve the purpose, the invention adopts the following technical scheme:
in a first aspect, the present invention provides an attention assessment method, comprising:
acquiring brain wave signals corresponding to each instant of a user to be evaluated;
comparing the brain wave signal corresponding to each instant with the brain wave reference signal corresponding to each instant to obtain a comparison result;
and obtaining an evaluation result according to the comparison result, wherein the evaluation result is used for representing the attention degree of the user to be evaluated at each instant.
In one implementation, the comparing the brain wave signal corresponding to each instant with the brain wave reference signal corresponding to each instant to obtain a comparison result includes:
obtaining a time period corresponding to each instant according to each instant;
obtaining brain wave signals corresponding to the time periods according to the time periods;
calculating the average value of the brain wave signals in the time period according to the brain wave signals corresponding to the time period;
and comparing the average value of each instant with the brain wave reference signal corresponding to each instant to obtain a comparison result.
In one implementation, the obtaining, according to the comparison result, an evaluation result, where the evaluation result is used to characterize the attention degree of the user to be evaluated at each instant, includes:
according to the comparison result, obtaining the goodness of fit of the average value of each instant in the comparison result and the brain wave reference signal corresponding to each instant, wherein the goodness of fit is used for representing the similarity degree of the average value and the brain wave reference signal.
In one implementation, the comparing the brain wave signal corresponding to each instant with the brain wave reference signal corresponding to each instant to obtain a comparison result includes:
obtaining a time period corresponding to each instant according to each instant;
obtaining brain wave signals corresponding to the time periods according to the time periods;
according to the brain wave signals corresponding to the time period, counting the duration that the difference value between the brain wave signals and the brain wave reference signals in the time period is continuously greater than the duration corresponding to a set value;
and obtaining a comparison result according to the duration.
In one implementation, the obtaining, according to the comparison result, an evaluation result, where the evaluation result is used to characterize the attention degree of the user to be evaluated at each instant, includes:
when the duration time in the comparison result is less than the set time, obtaining that the instantaneous attention degree of the user to be evaluated in the evaluation result is a first level;
and when the duration time in the comparison result is longer than the set time, obtaining that the instantaneous attention degree of the user to be evaluated in the evaluation result is a second-level instantaneous attention degree, wherein the second-level instantaneous attention degree is smaller than the first-level instantaneous attention degree.
In one implementation, the method further comprises:
drawing the brain wave signals of each instant of the user to be evaluated into a curve according to the time sequence corresponding to each instant, and recording the curve as the electroencephalogram curve of the user to be evaluated;
drawing the brain wave reference signals of each instant into a curve according to the time sequence corresponding to each instant, and recording the curve as an electroencephalogram reference curve;
moving the electroencephalogram curve along a direction opposite to a time sequence by a set distance to obtain the electroencephalogram curve after moving, wherein the set distance corresponds to delay time of a signal acquisition device, and the signal acquisition device is used for acquiring the electroencephalogram signal of the user to be evaluated;
comparing the electroencephalogram curve after movement with the electroencephalogram reference curve to obtain a difference value between the electroencephalogram curve and the electroencephalogram reference curve at each instant;
and obtaining an evaluation result according to the difference.
In one implementation, the method further comprises:
accumulating the comparison results corresponding to all the moments to obtain an accumulated result;
according to the accumulation result, obtaining a first score corresponding to the whole process of the attention training of the user to be evaluated;
counting the continuous time of which the difference value between the brain wave signal corresponding to each continuous instant and the brain wave reference signal is smaller than the preset value;
obtaining a second score according to the continuous time;
and obtaining a total score according to the first score and the second score, wherein the total score is used for representing the attention degree of the whole process.
In a second aspect, an embodiment of the present invention further provides an apparatus for an attention assessment method, where the apparatus includes the following components:
the signal acquisition module is used for acquiring brain wave signals corresponding to all the moments of the user to be evaluated;
the calculation module is used for comparing the brain wave signals corresponding to the various moments with the brain wave reference signals corresponding to the various moments to obtain comparison results;
and the evaluation module is used for obtaining an evaluation result according to the comparison result, and the evaluation result is used for representing the attention degree of the user to be evaluated at each instant.
In a third aspect, an embodiment of the present invention further provides a terminal device, where the terminal device includes a memory, a processor, and an attention evaluation program that is stored in the memory and is executable on the processor, and when the processor executes the attention evaluation program, the steps of the attention evaluation method are implemented.
In a fourth aspect, an embodiment of the present invention further provides a computer-readable storage medium, where an attention estimation program is stored on the computer-readable storage medium, and when the attention estimation program is executed by a processor, the steps of the attention estimation method are implemented.
Has the advantages that: on one hand, the invention adopts the brain wave signal to represent the attention of the user to be evaluated, and the brain wave is taken as a physiological parameter of the user, thereby accurately and objectively reflecting the attention of the user to be evaluated. On the other hand, the invention compares the instantaneous brain wave signals of the user to be evaluated with the instantaneous brain wave reference signals, and when the two signals are very close, the attention degree of the user at the moment is indicated to be larger, otherwise, the attention degree is smaller. In conclusion, the invention adopts the instantaneous brain wave signals of the user to evaluate the instantaneous attention degree of the user, and the evaluation result is objective and accurate.
Drawings
FIG. 1 is an overall flow chart of the present invention;
FIG. 2 is a brain wave signal curve and a brain wave reference signal curve according to the present invention;
fig. 3 is a graph of brain wave signals after locomotion in accordance with the present invention;
fig. 4 is a schematic block diagram of an internal structure of a terminal device according to an embodiment of the present invention.
Detailed Description
The technical scheme of the invention is clearly and completely described below by combining the embodiment and the attached drawings of the specification. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Research shows that when attention training is carried out, attention of a user needs to be evaluated first, and a training method suitable for the user is selected according to an evaluation result. In the prior art, the attention degree of a user is often judged by observing the facial micro-expression of the user, the attention degree of the user is judged by subjective consciousness, the accuracy is poor, and different observers obtain different evaluation results for the same user.
In order to solve the technical problems, the invention provides an attention assessment method, an attention assessment device, attention assessment equipment and a storage medium, and solves the problem that the accuracy of an attention assessment result in the prior art is low. In specific implementation, the attention degree of the user is evaluated according to the instantaneous brain wave reference signal corresponding to the instantaneous brain wave signal of the user, and the accuracy of the evaluation result obtained by the method is high.
For example, as shown in fig. 2, the abscissa is the time of attention training, the ordinate is the signal strength, and two curves are provided, one of which is the electroencephalogram signal curve of the user to be evaluated, and the other is the electroencephalogram reference signal curve. The brain wave reference signal is a brain wave signal that can be used as a reference standard. As can be understood from fig. 2, at the instant t1, the difference between the brain wave signal of the user to be evaluated and the brain wave reference signal is small, and at the instant t2, the difference between the brain wave signal of the user to be evaluated and the brain wave reference signal is small. Therefore, the attention concentration of the user to be evaluated at the instant t2 is greater than that at the instant t 1.
Exemplary method
The attention evaluating method of the embodiment can be applied to terminal equipment, and the terminal equipment can be terminal products with an audio playing function, such as televisions, computers, mobile phones and the like. In this embodiment, as shown in fig. 1, the attention evaluating method specifically includes the following steps:
and S100, acquiring brain wave signals corresponding to each instant of the user to be evaluated.
The instant in the present embodiment refers to a short time, for example, the instant may be two or three seconds. When the brain wave signals of the user to be evaluated are collected, the brain wave signals of the user to be evaluated in a quiet environment and the brain wave signals of the user to be evaluated in a noisy environment can be collected respectively. Comparing each instantaneous brain wave signal in a quiet environment with a brain wave reference signal to obtain a first difference between the two at each instant; the brain wave signal in a noisy environment is compared with the brain wave reference signal to obtain a second difference between the two at each instant. And calculating a difference value between the first gap and the second gap, wherein the difference value is used for representing the stability of the attention concentration degree of the user to be evaluated in different environments. The larger the difference, the poorer the stability, and the smaller the difference, the better the stability. The attention of the user to be evaluated can be further evaluated according to the difference.
And S200, comparing the brain wave signal corresponding to each instant with the brain wave reference signal corresponding to each instant to obtain a comparison result.
The present embodiment includes two cases, the first case: taking the average value of the signals in the time period of the instant time as the instant brain wave signals of the user to be evaluated, and comparing the average value with the brain wave reference signals; in the second case: and obtaining a comparison result according to the duration of the time when the difference between the brain wave signal in the instant time period and the brain wave reference signal is abnormal. In the first case, the instantaneous overall attention concentration degree of the user to be evaluated can be obtained; in the second case, the degree of stability of the attention of the user to be evaluated can be known.
In the first case, step S200 includes the following steps:
s201, obtaining a time period corresponding to each instant according to each instant.
For example, the instant is the third minute, and the time period corresponding to the instant is within the minute of the third minute.
And S202, obtaining the brain wave signal corresponding to the time period according to the time period.
The moment is the third minute, and the corresponding time period is all brain wave signals in the minute of the third minute.
And S203, calculating the average value of the brain wave signals in the time period according to the brain wave signals corresponding to the time period.
All the electroencephalogram signals in one minute of the third minute are counted, and the average value of all the electroencephalogram signals in one minute is calculated and taken as the electroencephalogram signal in the third minute.
And S204, comparing the average value of each instant with the brain wave reference signal corresponding to each instant to obtain a comparison result.
In the present embodiment, as shown in fig. 2, since the brain wave reference signals are generated from a user having a relatively high concentration, the brain wave reference signals can be maintained at substantially a fixed value in a short time, and thus it is not necessary to average instantaneous brain wave reference signals.
The comparison result in the present embodiment is the difference between the average value and the brain wave reference signal.
When it is the second case, step S200 includes the steps of:
s205, obtaining a time period corresponding to each instant according to each instant.
And S206, obtaining the brain wave signal corresponding to the time period according to the time period.
And S207, counting the duration that the difference between the brain wave signal and the brain wave reference signal in the time period is continuously greater than the duration corresponding to a set value according to the brain wave signal corresponding to the time period.
For example, if the difference between the brain wave signals of the tenth to twentieth seconds in the second minute and the brain wave reference signals is greater than the set value, the attention of the user to be evaluated is not good for the tenth to twentieth seconds in the second minute, the duration of time in this embodiment is ten seconds corresponding to the tenth to twentieth seconds, and the attention of the other fifty seconds is good.
And S208, obtaining a comparison result according to the duration.
This embodiment uses the duration as the comparison result.
And S300, obtaining an evaluation result according to the comparison result, wherein the evaluation result is used for representing the attention degree of the user to be evaluated at each instant.
When step S200 is the first case, step S300 includes: according to the comparison result, obtaining the goodness of fit of the average value of each instant in the comparison result and the brain wave reference signal corresponding to each instant, wherein the goodness of fit is used for representing the similarity degree of the average value and the brain wave reference signal.
The matching degree in the present embodiment is the difference between the average value and the brain wave reference signal.
When step S200 is the second case, step S300 includes steps S301, S302 as follows:
s301, when the duration time in the comparison result is less than the set time, the instantaneous attention degree of the user to be evaluated in the evaluation result is obtained as a first level.
S302, when the duration time in the comparison result is longer than the set time, the instantaneous attention degree of the user to be evaluated in the evaluation result is obtained as a second level, and the instantaneous attention degree of the second level is smaller than the instantaneous attention degree of the first level.
For example, if the difference between the brain wave signal and the brain wave reference signal is greater than a set value for the tenth to twentieth seconds in the second minute (instant), the duration of the second minute is ten seconds, the set time is artificially defined, and the set time may be fifteen seconds. Ten seconds in this embodiment is less than fifteen seconds, so the instantaneous level of attention of the user to be evaluated is one level.
In this case, the electroencephalogram signal of the user to be evaluated is acquired by the device, the device acquires and transmits the signal with delay, for example, the device displays the electroencephalogram signal a of the user to be evaluated in the fifth second, but the electroencephalogram signal a does not correspond to the fifth second because of the delay problem of the device, and if the electroencephalogram signal a is used to evaluate the attention concentration of the user to be evaluated in the fifth second, the obtained evaluation result cannot represent the attention concentration of the user to be evaluated in the fifth second.
Therefore, in order to avoid the above problem, the present embodiment employs the following steps S401, S402, S403, S404, S405 to acquire the evaluation results of the users to be evaluated at respective instants.
S401, according to the time sequence corresponding to each instant, the brain wave signals of the user to be evaluated at each instant are drawn into a curve and recorded as the brain wave curve of the user to be evaluated.
And S402, drawing the brain wave reference signals at all the moments into curves according to the time sequence corresponding to all the moments, and recording the curves as brain wave reference curves.
In this embodiment, the time corresponding to the collected signals is used as the abscissa and the signal intensity is used as the ordinate, and the curve corresponding to the brain wave signal of the user to be evaluated, which is collected instantaneously, and the curve corresponding to the brain wave reference signal are plotted in the same coordinate system.
And S403, moving the electroencephalogram curve along a direction opposite to the time sequence by a set distance to obtain the electroencephalogram curve after moving, wherein the set distance corresponds to the delay time of a signal acquisition device, and the signal acquisition device is used for acquiring the electroencephalogram signal of the user to be evaluated.
As shown in fig. 3, the brain wave signal of the solid line is the brain wave signal of the user to be evaluated collected in real time, and the brain wave signal of the dotted line is the brain wave signal after movement. In this embodiment, the electroencephalogram signal of the solid line is moved to the left along the abscissa (time coordinate) by a set distance to obtain an electroencephalogram signal of the dotted line, and the electroencephalogram signal of the dotted line is a signal corresponding to each instant of the user to be evaluated. The delay time of the signal acquisition device is known and the set distance is the delay time.
S404, comparing the electroencephalogram curve after movement with the electroencephalogram reference curve to obtain the difference value between the electroencephalogram curve and the electroencephalogram reference curve at each instant.
And S405, obtaining an evaluation result according to the difference.
As shown in fig. 3, to evaluate the degree of attention concentration of the user to be evaluated at the instant of t1, the brain wave signal strength corresponding to the dashed line at t1 is used instead of the brain wave signal strength corresponding to the solid line. When the evaluation result of the user to be evaluated at the instant t1 is calculated, the brain wave reference signal at the time of t1 is subtracted from the brain wave signal strength on the dotted line at the time of t 1.
The present embodiment, after acquiring each instantaneous brain wave signal of a user to be evaluated, forms the brain wave signal of the entire attention training process by the instantaneous brain wave signal, and then evaluates the attention of the entire process, when evaluating the attention of the entire process, includes the following steps S501, S502, S503, S504, S505:
and S501, accumulating the comparison results corresponding to all the moments to obtain an accumulated result.
And S502, obtaining a first score corresponding to the whole process of the attention training of the user to be evaluated according to the accumulation result.
And S503, counting the continuous time in which the difference value between the brain wave signal corresponding to each continuous instant and the brain wave reference signal is less than the preset value.
S504, obtaining a second score according to the continuous time.
And S505, obtaining a total score according to the first score and the second score, wherein the total score is used for representing the attention degree of the whole process.
In summary, on one hand, the brain wave signal is adopted to represent the attention of the user to be evaluated, and the brain wave is used as a physiological parameter of the user, so that the attention of the user to be evaluated can be accurately and objectively reflected. On the other hand, the invention compares the instantaneous brain wave signals of the user to be evaluated with the instantaneous brain wave reference signals, and when the two signals are very close, the attention degree of the user at the moment is indicated to be larger, otherwise, the attention degree is smaller. In conclusion, the invention adopts the instantaneous brain wave signals of the user to evaluate the instantaneous attention degree of the user, and the evaluation result is objective and accurate.
Exemplary devices
The embodiment also provides a device of the attention assessment method, which comprises the following components:
the signal acquisition module is used for acquiring brain wave signals corresponding to all the moments of the user to be evaluated;
the calculation module is used for comparing the brain wave signals corresponding to the moments with the brain wave reference signals corresponding to the moments to obtain comparison results;
the evaluation module is used for obtaining an evaluation result according to the comparison result, and the evaluation result is used for representing the attention degree of the user to be evaluated at each instant
Based on the above embodiments, the present invention further provides a terminal device, and a schematic block diagram thereof may be as shown in fig. 4. The terminal equipment comprises a processor, a memory, a network interface, a display screen and a temperature sensor which are connected through a system bus. Wherein the processor of the terminal device is configured to provide computing and control capabilities. The memory of the terminal equipment comprises a nonvolatile storage medium and an internal memory. The non-volatile storage medium stores an operating system and a computer program. The internal memory provides an environment for the operation of an operating system and computer programs in the non-volatile storage medium. The network interface of the terminal device is used for connecting and communicating with an external terminal through a network. The computer program is executed by a processor to implement a method of attention assessment. The display screen of the terminal equipment can be a liquid crystal display screen or an electronic ink display screen, and the temperature sensor of the terminal equipment is arranged in the terminal equipment in advance and used for detecting the operating temperature of the internal equipment.
It will be understood by those skilled in the art that the block diagram of fig. 4 is only a block diagram of a part of the structure related to the solution of the present invention, and does not constitute a limitation to the terminal device to which the solution of the present invention is applied, and a specific terminal device may include more or less components than those shown in the figure, or may combine some components, or have different arrangements of components.
In one embodiment, a terminal device is provided, where the terminal device includes a memory, a processor, and an attention evaluation program stored in the memory and executable on the processor, and the processor executes the attention evaluation program to implement the following operation instructions:
acquiring brain wave signals corresponding to all the moments of a user to be evaluated;
comparing the brain wave signal corresponding to each instant with the brain wave reference signal corresponding to each instant to obtain a comparison result;
and obtaining an evaluation result according to the comparison result, wherein the evaluation result is used for representing the attention degree of the user to be evaluated at each instant.
It will be understood by those skilled in the art that all or part of the processes of the methods of the embodiments described above can be implemented by hardware instructions of a computer program, which can be stored in a non-volatile computer-readable storage medium, and when executed, can include the processes of the embodiments of the methods described above. Any reference to memory, storage, databases, or other media used in embodiments provided herein may include non-volatile and/or volatile memory. Non-volatile 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), Double Data Rate SDRAM (DDRSDRAM), Enhanced SDRAM (ESDRAM), Synchronous Link DRAM (SLDRAM), Rambus Direct RAM (RDRAM), direct bus dynamic RAM (DRDRAM), and memory bus dynamic RAM (RDRAM).
In summary, the present invention discloses a method, an apparatus, a device and a storage medium for attention assessment, wherein the method comprises: acquiring brain wave signals corresponding to each instant of a user to be evaluated; comparing the brain wave signal corresponding to each instant with the brain wave reference signal corresponding to each instant to obtain a comparison result; and obtaining an evaluation result according to the comparison result, wherein the evaluation result is used for representing the attention degree of the user to be evaluated at each instant. The invention adopts the instantaneous brain wave signal of the user to evaluate the instantaneous attention degree of the user, and the evaluation result is objective and accurate.
Finally, it should be noted that: the above examples are only intended to illustrate the technical solution of the present invention, but not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, it should be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; and such modifications or substitutions do not depart from the spirit and scope of the corresponding technical solutions of the embodiments of the present invention.
Claims (10)
1. An attention assessment method, comprising:
acquiring brain wave signals corresponding to each instant of a user to be evaluated;
comparing the brain wave signal corresponding to each instant with the brain wave reference signal corresponding to each instant to obtain a comparison result;
and obtaining an evaluation result according to the comparison result, wherein the evaluation result is used for representing the attention degree of the user to be evaluated at each instant.
2. The attention estimation method as claimed in claim 1, wherein the comparing the brain wave signal corresponding to each instant with the brain wave reference signal corresponding to each instant to obtain a comparison result comprises:
obtaining a time period corresponding to each instant according to each instant;
obtaining brain wave signals corresponding to the time periods according to the time periods;
calculating the average value of the brain wave signals in the time period according to the brain wave signals corresponding to the time period;
and comparing the average value of each instant with the brain wave reference signal corresponding to each instant to obtain a comparison result.
3. The attention assessment method according to claim 2, wherein said obtaining an assessment result based on the comparison result, said assessment result being used for characterizing the attention level of the user to be assessed at each instant, comprises:
according to the comparison result, obtaining the coincidence degree of the average value of each instant in the comparison result and the brain wave reference signal corresponding to each instant, wherein the coincidence degree is used for representing the similarity degree of the average value and the brain wave reference signal.
4. The attention estimation method as claimed in claim 1, wherein the comparing the brain wave signal corresponding to each instant with the brain wave reference signal corresponding to each instant to obtain a comparison result comprises:
obtaining a time period corresponding to each instant according to each instant;
obtaining brain wave signals corresponding to the time periods according to the time periods;
according to the brain wave signals corresponding to the time period, counting the duration that the difference value between the brain wave signals and the brain wave reference signals in the time period is continuously greater than the duration corresponding to a set value;
and obtaining a comparison result according to the duration.
5. The attention assessment method according to claim 4, wherein said obtaining an assessment result based on the comparison result, said assessment result being used for characterizing the attention degree of the user to be assessed at each instant, comprises:
when the duration time in the comparison result is less than the set time, obtaining that the instantaneous attention degree of the user to be evaluated in the evaluation result is a first level;
and when the duration time in the comparison result is longer than the set time, obtaining that the instantaneous attention degree of the user to be evaluated in the evaluation result is a second-level instantaneous attention degree, wherein the second-level instantaneous attention degree is smaller than the first-level instantaneous attention degree.
6. The attention-assessment method according to claim 1, further comprising:
drawing the brain wave signals of each instant of the user to be evaluated into a curve according to the time sequence corresponding to each instant, and recording the curve as the electroencephalogram curve of the user to be evaluated;
drawing the brain wave reference signals of each instant into a curve according to the time sequence corresponding to each instant, and recording the curve as an electroencephalogram reference curve;
moving the electroencephalogram curve along a direction opposite to a time sequence by a set distance to obtain the electroencephalogram curve after moving, wherein the set distance corresponds to delay time of a signal acquisition device, and the signal acquisition device is used for acquiring the electroencephalogram signal of the user to be evaluated;
comparing the electroencephalogram curve after movement with the electroencephalogram reference curve to obtain a difference value between the electroencephalogram curve and the electroencephalogram reference curve at each instant;
and obtaining an evaluation result according to the difference.
7. The attention-assessment method according to claim 1, further comprising:
accumulating the comparison results corresponding to all the moments to obtain an accumulated result;
according to the accumulation result, obtaining a first score corresponding to the whole process of the attention training of the user to be evaluated;
counting the continuous time of which the difference value between the brain wave signal corresponding to each continuous instant and the brain wave reference signal is smaller than the preset value;
obtaining a second score according to the continuous time;
and obtaining a total score according to the first score and the second score, wherein the total score is used for representing the attention degree of the whole process.
8. An apparatus for an attention-assessment method, comprising:
the signal acquisition module is used for acquiring brain wave signals corresponding to all the moments of a user to be evaluated;
the calculation module is used for comparing the brain wave signals corresponding to the moments with the brain wave reference signals corresponding to the moments to obtain comparison results;
and the evaluation module is used for obtaining an evaluation result according to the comparison result, and the evaluation result is used for representing the attention degree of the user to be evaluated at each instant.
9. A terminal device, characterized in that the terminal device comprises a memory, a processor and an attention evaluation program stored in the memory and executable on the processor, the processor implementing the steps of the attention evaluation method according to any one of claims 1 to 7 when executing the attention evaluation program.
10. A computer-readable storage medium, having stored thereon an attention-assessment program which, when executed by a processor, carries out the steps of the attention-assessment method according to any one of claims 1-7.
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115167689A (en) * | 2022-09-08 | 2022-10-11 | 深圳市心流科技有限公司 | Human-computer interaction method, device, terminal and storage medium for concentration training |
| CN115188447A (en) * | 2022-09-08 | 2022-10-14 | 浙江强脑科技有限公司 | Memory training method and device based on electroencephalogram signals |
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2022
- 2022-02-14 CN CN202210133697.4A patent/CN114642432A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115167689A (en) * | 2022-09-08 | 2022-10-11 | 深圳市心流科技有限公司 | Human-computer interaction method, device, terminal and storage medium for concentration training |
| CN115188447A (en) * | 2022-09-08 | 2022-10-14 | 浙江强脑科技有限公司 | Memory training method and device based on electroencephalogram signals |
| CN115188447B (en) * | 2022-09-08 | 2022-12-09 | 浙江强脑科技有限公司 | Memory training method and device based on electroencephalogram signals |
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