CN109464151B - Attention suppression capability acquisition method, device, equipment and storage medium - Google Patents
Attention suppression capability acquisition method, device, equipment and storage medium Download PDFInfo
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- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
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- 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
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Abstract
The embodiment of the application discloses a method for acquiring attention inhibition capacity and a related product, wherein the method comprises the following steps: controlling a display to display one or more test images, wherein each test image comprises a background part and a target part, the target part and the background part are marked with stimulation marks, and the background part of at least one test image is marked with an interference mark; acquiring feedback data corresponding to the test image, which is fed back by a user when the user searches the stimulation mark meeting the preset rule from the target part of the test image; and evaluating the attention suppression capability of the user according to the feedback data. In the method for acquiring the suppression capability, the target part and the background part of the test image are both marked with the stimulation marks, the background part is marked with the interference marks, and the feedback data fed back by the user comprises information generated in order to avoid the interference marks when the user searches the stimulation marks meeting the preset rules from the target part of the test image, so that the attention suppression capability of the user is evaluated according to the feedback data of the user.
Description
Technical Field
The application relates to the technical field of attention inhibition capability analysis, in particular to an attention inhibition capability acquisition method and a related product.
Background
Cognition is the process of acquiring knowledge or applying knowledge by converting the external information received by the human brain into internal psychological activities after processing. In the related art, attention is often taken as an important parameter reflecting cognitive states, and attention is detected by some attention detection methods. The attention suppressing ability of the human brain is an important part of attention, however, in the related art, there is no means specifically for evaluating the attention suppressing ability.
Disclosure of Invention
The embodiment of the application provides a method and equipment for acquiring attention suppression capability and a computer readable storage medium.
In a first aspect, an embodiment of the present application provides a method for acquiring attention suppression capability, including:
controlling a display to display one or more test images, wherein each test image comprises a background part and a target part, the target part and the background part are marked with stimulation marks, and the background part of at least one test image is marked with an interference mark;
acquiring feedback data corresponding to the test image, which is fed back by a user when the user searches for a stimulation mark meeting a preset rule from a target part of the test image;
evaluating the user's attention suppression capability based on the feedback data.
Therefore, the target part and the background part of the test image are marked with the stimulation marks, the background part is marked with the interference marks, and the feedback data fed back by the user comprise information generated in order to avoid the interference marks when the user searches the stimulation marks meeting the preset rules from the target part of the test image, so that the attention suppression capability of the user is evaluated according to the feedback data of the user.
Wherein the feedback data comprises PD components corresponding to the test image generated by the user when the user searches for a stimulation mark conforming to a preset rule from a target part of the test image. Therefore, the attention suppression capability of the user is evaluated according to the PD component, the influence of other irrelevant factors is small, and the accuracy of the obtained evaluation result is high.
Wherein the number of the test images is a plurality, and the controlling the display to display the test images comprises:
controlling a display to display a test image;
and after feedback data corresponding to the test image and fed back by the user is acquired, controlling the display to display the next test image.
Thus, only one test image is displayed at a time, and feedback data which is fed back by a user and corresponds to the currently displayed test image can be accurately obtained. Moreover, as a plurality of test images are available, a plurality of groups of feedback data can be obtained, and the attention suppression capability of the user can be evaluated according to the plurality of groups of feedback data, so that the obtained evaluation result is more accurate.
Wherein one part of the test image is a first test image, the other part of the test image is a second test image, the background part of the first test image is marked with an interference mark, the second test image is not marked with the interference mark,
the obtaining feedback data corresponding to the test image and fed back by the user when the user searches for the stimulation mark meeting the preset rule from the target part of the test image comprises:
acquiring a first initial moment when each first test image starts to be displayed and a first feedback moment when the user searches a stimulation mark which accords with a preset rule from a target part of the first test image, wherein the first feedback moment corresponds to the first test image, and taking a time difference between the first feedback moment and the first initial moment which correspond to the same first test image as a first reaction duration;
acquiring a second initial moment when the display of each second test image is started and a second feedback moment when the user searches for a stimulation mark which accords with a preset rule from a target part of the second test image, wherein the feedback action corresponding to the second test image is performed by the user, and taking the time difference between the second feedback moment and the second initial moment corresponding to the same second test image as a second reaction duration;
said evaluating an attention suppression capability of the user based on the feedback data comprises:
and evaluating the attention suppression capability of the user according to the first reaction duration and the second reaction duration.
After the user finishes the task of searching the stimulation mark which accords with the preset rule from the target part of the test image, the attention inhibition capability of the user can be evaluated, and the attention inhibition capability of the user can be conveniently and quickly evaluated by using the mode.
Wherein the obtaining of the feedback data corresponding to the test image and fed back by the user when the user searches for the stimulation marker meeting the preset rule from the target portion of the test image further comprises:
acquiring a first accuracy rate that a feedback behavior corresponding to the first test image made by the user meets the preset rule and a second accuracy rate that a feedback behavior corresponding to the second test image made by the user meets the preset rule;
said evaluating an attention suppression capability of the user based on the feedback data comprises:
calculating the average value of the first reaction time length to obtain a first time length average value, and calculating the average value of the second reaction time length to obtain a second time length average value;
taking the ratio of the first time length average value to the first accuracy as a first correction response time length, and taking the ratio of the second time length average value to the second accuracy as a second correction response time length;
and evaluating the attention suppression capability of the user according to the first correction reaction time length and the second correction reaction time length.
Thus, when the first accuracy is low, the numerical value of the first correction response duration is increased relative to the average value of the first duration, and thus the first correction response duration and the second correction response duration can be regarded as response durations required by correct responses of users under the conditions of interfering stimulation and non-interfering stimulation respectively, so that the first correction response duration and the second correction response duration can more accurately reflect the influence of the feedback behavior on the interfering marks.
Wherein the obtaining of the feedback data corresponding to the test image and fed back by the user when the user searches for the stimulation marker meeting the preset rule from the target portion of the test image further comprises:
acquiring a first initial position of the eyeballs of the user when the first test images are started to be displayed and a second initial position of the eyeballs of the user when the second test images are started to be displayed;
determining the corresponding position of each first initial position in the corresponding first test image and the corresponding position of each second initial position in the corresponding second test image;
calculating a proportion of first initial positions of the plurality of first initial positions, which correspond to the positions in the corresponding first test image and are located in the background portion marked with the interference marks, as a first proportion, and a proportion of second initial positions of the plurality of second initial positions, which correspond to the positions in the corresponding second test image and are located in the background portion, as a second proportion;
said evaluating the user's attention suppression capability based on the feedback data further comprises:
if the first scale and the second scale are the same or close to each other, it can be said that the probability of seeing the background portion at first sight is the same whether there is an interference mark or not when the user searches for the stimulation mark meeting the preset rule, and it can be said that the user is actually less affected by the interference mark. If the difference between the first ratio and the second ratio is large, it can indicate that the user is greatly affected by the interference mark. Thus, the evaluation result of the attention suppressing capability of the user is adjusted according to the ratio difference of the first proportion and the second proportion.
Wherein the step of displaying the test image further comprises:
when feedback data corresponding to the test image and fed back by the user is not acquired, judging whether the time length for displaying the test image exceeds a preset time length or not;
and when the time length for displaying the test image exceeds the preset time length, controlling the display to display the next test image.
When the user leaves or does other irrelevant things halfway, the user may not make feedback for a long time, and the feedback data fed back by the user obtained in this case is inaccurate and cannot accurately reflect the attention suppression capability of the user, so that when the preset time is exceeded and the feedback data of the user is not obtained, the next test image is displayed instead of continuously waiting for the feedback of the user, so that on one hand, the reliability of the obtained feedback data can be improved, and on the other hand, the user can focus more on searching the stimulation mark which meets the preset rule from the target part of the test image.
In a second aspect, an embodiment of the present application further provides an attention suppression capability obtaining apparatus, including:
the display module is used for controlling the display to display one or more test images, each test image comprises a background part and a target part, the target part and the background part are marked with stimulation marks, and the background part of at least one test image is marked with an interference mark;
the feedback data acquisition module is used for acquiring feedback data corresponding to the test image, which is made by the target object when the target object searches the stimulation mark which accords with the preset rule from the test image;
and the data processing module is used for determining the attention suppression capability of the target object according to the feedback data.
In a third aspect, embodiments of the present application further provide an apparatus comprising a processor, a memory, a communication interface, and one or more programs, the one or more programs being stored in the memory and configured to be executed by the processor, the programs including instructions for performing some or all of the steps of any of the methods described above.
In a fourth aspect, the present application further provides a computer-readable storage medium storing a computer program for attention suppression capability acquisition, the computer program causing a computer to execute some or all of the steps of any one of the methods of the apparatuses in the embodiments of the present application.
In the technical scheme of the application, the target part and the background part of the test image are both marked with the stimulation marks, the background part is marked with the interference marks, and feedback data fed back by a user comprise information generated in order to avoid the interference marks when the user searches the stimulation marks meeting the preset rules from the target part of the test image, so that the attention suppression capability of the user is evaluated according to the feedback data of the user.
Drawings
Some drawings to which embodiments of the present application relate will be described below.
FIG. 1 is a diagram of a hardware architecture of an apparatus according to an embodiment of the present application;
fig. 2 is a flowchart illustrating an attention suppressing capability obtaining method according to an embodiment of the present application;
FIG. 3 is a schematic diagram of a test image of an embodiment of the present application;
fig. 4 is another flowchart illustrating an attention suppressing capability obtaining method according to an embodiment of the present application;
FIG. 5 is a schematic flow chart of a method for obtaining attention suppression capability according to an embodiment of the present application;
fig. 6 is a further flowchart of a method for obtaining attention suppression capability according to an embodiment of the present application;
fig. 7 is still another flowchart illustrating an attention suppressing capability obtaining method according to an embodiment of the present application;
fig. 8 is still another flowchart of the attention suppressing capability obtaining method according to the embodiment of the present application.
Detailed Description
The embodiments of the present application will be described below with reference to the drawings.
Referring to fig. 1, fig. 1 is a schematic diagram of a hardware structure of an apparatus 100 according to an embodiment of the present disclosure. The device 100 includes a processor 101, a memory 102, a communication interface 103, and one or more programs stored in the memory 102 and configured to be executed by the processor 101, the programs including instructions for the steps of the attention suppression capability acquisition method with any of the following embodiments. The device 100 may be a server or a terminal computer.
Referring to fig. 2, fig. 2 is a schematic flow chart of a method for obtaining attention suppression capability according to an embodiment of the present application, where the method may include, but is not limited to, the following steps:
01. controlling a display to display one or more test images, wherein each test image comprises a background part and a target part, the target part and the background part are marked with stimulation marks, and the background part of at least one test image is marked with an interference mark;
the attention suppression capability acquisition method according to the embodiment of the present application may be implemented by the apparatus 100 according to the embodiment of the present application. The display for displaying the test image may be a display included in the device 100 itself, or may be a display connected to the device 100 through the communication interface 103. One or more test images are stored in the memory 102, and the processor 101 issues a control instruction to control the display to display the test images. The display may be a high refresh rate liquid crystal display and the test images may be generated by psychographic visual presentation software (Matlab and psychtools kit). The background portion and the target portion of the test image may be distinguished by specific graphical features.
For example, as shown in fig. 3, a test image may include a plurality of hexagonal patterns, circular patterns, and square patterns, and the hexagonal patterns may be used as a background portion, and the circular patterns and the square patterns may be used as a target portion, wherein at least one of the hexagonal patterns is marked with a special color, the special color is a disturbance mark, each pattern is marked with a diagonal mark, and the diagonal mark marked on the pattern is a stimulation mark. Of course, in other embodiments, the background portion, the target portion, the interference mark, and the stimulus mark in the test image are not limited to the forms in the above examples. When the number of the test images is multiple, the display can be controlled to display the multiple test images in sequence according to a preset sequence or a random sequence. The target portion and the background portion are marked with stimulation marks, and it is understood that the target portion is marked with stimulation marks, the background portion is also marked with stimulation marks, a part of the target portion may be marked with stimulation marks, all of the target portion may be marked with stimulation marks, a part of the background portion may be marked with stimulation marks, and all of the background portion may be marked with stimulation marks. The background portion of at least one test image is marked with an interference mark, it is understood that a part of the background portion is marked with an interference mark or the whole background portion is marked with an interference mark, for example, in the embodiment shown in fig. 3, the hexagonal pattern is the background portion, the interference mark may be marked on only one hexagonal pattern or all hexagonal patterns.
02. Acquiring feedback data corresponding to the test image, which is made by a user when the user searches the stimulation mark which accords with the preset rule from the target part of the test image;
after the display displays the test image, the user contrasts the test image according to a preset rule, searches a stimulation mark which accords with the preset rule from a target part of the test image, and feeds back the stimulation mark. The preset rules can be informed to the user in a display mode or can be informed to the user manually. The preset rule may be, for example, a diagonal marking to find a specific direction of the target portion.
The feedback made by the user may be physiological feedback of the user when searching for a stimulation marker that meets a preset rule, such as a change in a component of an electroencephalogram pd (activity vector) of the user, or may be motion feedback of the user when searching for a stimulation marker that meets a preset rule, such as a change in a position of an eyeball of the user, a stimulation marker that meets a preset rule selected by the user, or the like. The apparatus 100 may be connected to the collecting device through the communication interface 103 to collect feedback data corresponding to the test image, which is fed back by the user when the user searches the stimulus label conforming to the preset rule from the test image.
03. And evaluating the attention suppression capability of the user according to the feedback data.
In the test image, the target portion and the stimulation portion both have stimulation marks, but the user only needs to find out the stimulation marks which meet the preset rules from the target portion of the test image without considering the background portion. Therefore, when the user searches the stimulus mark conforming to the preset rule from the test image, the user only needs to observe the target portion, but does not need to observe the background portion. However, since the interference mark exists in the background portion, the interference mark needs to be avoided when the user searches for the stimulation mark meeting the preset rule from the target portion of the test image. The feedback data fed back when the user finds the stimulation mark conforming to the preset rule from the target portion of the test image includes information generated by the user in order to avoid the interference mark. The user's attention suppression ability can thus be evaluated by analyzing the feedback data.
According to the attention suppression capability obtaining method, the target part and the background part of the test image are marked with the stimulation marks, the background part of the test image is marked with the interference marks, feedback data fed back by a user include information generated in order to avoid the interference marks when the user searches the stimulation marks meeting the preset rules from the target part of the test image, and therefore the attention suppression capability of the user is evaluated according to the feedback data of the user. In addition, the process of evaluating the attention inhibition ability of the embodiment of the application does not depend on subjective factors, and the obtained result is more accurate.
For example, the feedback data may be PD components corresponding to the test image generated by the user when the user searches for the stimulation marker conforming to the preset rule from the target portion of the test image, the collecting device may be an electroencephalogram detecting device, and the electroencephalogram detecting device may be connected to the apparatus 100 through the communication interface 103 of the apparatus 100. The human brain produces a PD component when suppressing the disturbance, and the user's attention suppressing ability can be evaluated by analyzing the PD component of the user. The higher the PD fraction of the user, the greater the attention suppression capability. Therefore, the attention suppression capability of the user is evaluated according to the PD component, the influence of other irrelevant factors is small, and the accuracy of the obtained evaluation result is high.
Preferably, the attention suppression capability of the user may be determined from an average of the PD contribution of the user within 150-300 milliseconds after the test image is displayed. Since the human brain does not generate PD components when there is no interference, when the attention suppressing capability of the user is evaluated according to the feedback data, only the feedback data corresponding to the test image with the background portion marked with the interference mark fed back by the user may be referred to. The method can utilize an electroencephalogram detection device to detect PD components in the process that a user searches for a stimulation mark which accords with a preset rule from a target part of a test image.
It should be noted that, when the feedback data to be obtained includes PD components of the user, a fixation point may be marked in the test image, so that the user always gazes at the fixation point, and the stimulation mark meeting the preset rule is searched from the target portion of the test image by using the residual light. The user may rest on the forehead rest and adjust the relative position between the user's eyes and the test image by adjusting the forehead rest. Preferably, the forehead support is adjusted to enable the line connecting the centers of the two eyes of the user to be located at the same horizontal position with the fixation point in the test image, and the distance between the line connecting the centers of the two eyes and the fixation point in the test image is 60 cm.
Referring to fig. 2 and 4, in some embodiments, the number of the test images is multiple, and step 01 includes:
011. controlling a display to display a test image;
012. and after feedback data corresponding to the test image, which is made by the user, is acquired, controlling the display to display the next test image.
A plurality of test images for testing the attention suppressing capability of the user may be set in advance. The collecting means may further include an input means, and the input means may collect a feedback behavior made when the user searches for the stimulation mark conforming to the preset rule from the target portion of the currently displayed test image, and transmit feedback data corresponding to the feedback behavior of the user to the apparatus 100. The device 100 may collect, by the input device, feedback data corresponding to a feedback behavior performed when the user searches for the stimulus label conforming to the preset rule from the target portion of the currently displayed test image, after the user completes a task of searching for the stimulus label conforming to the preset rule from the target portion of the currently displayed test image and performs the feedback behavior, that is, after the device 100 acquires, by the input device, feedback data corresponding to the currently displayed test image fed back by the user, the next test image is displayed, the user searches for the stimulus label conforming to the preset rule from the target portion of the next displayed test image and performs the feedback behavior, and after the device 100 acquires the feedback data of the user, the next test image is displayed. Until all the test images are displayed. Therefore, only one test image is displayed at a time, and feedback data which are fed back by a user and correspond to the currently displayed test image can be accurately obtained. Moreover, as a plurality of test images are available, a plurality of groups of feedback data can be obtained, and the attention suppression capability of the user can be evaluated according to the plurality of groups of feedback data, so that the obtained evaluation result is more accurate.
Preferably, the display sequence of the plurality of test images is random, so that the user cannot predict the display sequence of the test images, the effectiveness of feedback data fed back by the user is ensured, and the attention suppression capability of the user obtained according to the feedback data evaluation is more reliable.
Referring to fig. 5, based on the above embodiments, in some embodiments, a part of the plurality of test images is a first test image, another part of the plurality of test images is a second test image, a background portion of the first test image is marked with an interference mark, and the second test image has no interference mark.
021. acquiring a first initial moment when each first test image starts to be displayed and a first feedback moment when a user searches a stimulation mark which accords with a preset rule from a target part of the first test image, wherein the first feedback moment corresponds to the first test image, and taking a time difference between the first feedback moment and the first initial moment which correspond to the same first test image as a first reaction duration;
a first initial time at which to start displaying each first test image and a first feedback time at which the user makes a feedback behavior corresponding to the currently displayed first test image may be recorded by psychtool of Maltlab. The user can make a feedback behavior through the input device, the apparatus 100 collects the feedback behavior of the user through the input device, and records a first feedback time when the user makes a feedback behavior corresponding to the currently displayed first test image by using the psychwood.
022. Acquiring a second initial moment when the display of each second test image is started and a second feedback moment when the user searches for a stimulation mark which accords with a preset rule from a target part of the second test image, wherein the second feedback moment corresponds to the second test image, and taking a time difference between the second feedback moment and the second initial moment which correspond to the same second test image as a second reaction duration;
correspondingly, a second initial time for starting to display each second test image and a second feedback time for a user to perform feedback action corresponding to the currently displayed second test image can be recorded by using the Psychtoolbox of the Maltlab. The user can make a feedback behavior through the input device, the apparatus 100 collects the feedback behavior of the user through the input device, and records a second feedback time at which the user makes a feedback behavior corresponding to the currently displayed second test image by using the psychwood.
The input device may be an input device included in the apparatus 100 itself, or may be an input device connected to the apparatus 100 through the communication interface 103 of the apparatus 100. For example, when the preset rule is to find the diagonal mark of the specific direction of the target portion, the user may input the position of the diagonal mark of the specific direction of the target portion in the test image through the input device, and the apparatus 100 receives the position data input by the user using the input device.
031. and evaluating the attention suppressing capability of the user according to the first reaction duration and the second reaction duration.
The first reaction duration is the reaction duration of the feedback behavior corresponding to the first test image when the user searches the stimulation mark conforming to the preset rule from the first test image, and the second reaction duration is the reaction duration of the feedback behavior corresponding to the first test image when the user searches the stimulation mark conforming to the preset rule from the second test image. Since the background part of the first test image is marked with the interference mark and the second test image has no interference mark, whether the user receives the influence of the interference mark and the degree of the influence of the interference mark can be judged by comparing the first reaction duration and the second reaction duration, so that the attention suppression capability of the user can be evaluated according to the first reaction duration and the second reaction duration. Therefore, after the user finishes the task of searching the stimulation mark which accords with the preset rule from the target part of the test image, the attention inhibition capability of the user can be evaluated, and the attention inhibition capability of the user can be conveniently and quickly evaluated by using the mode.
In an example, the first test image has a plurality of first test images, the second test image has a plurality of second test images, a plurality of first reaction durations and a plurality of second reaction durations may be obtained, an average value of the plurality of first reaction durations may be calculated to obtain a first duration average value, an average value of the plurality of second reaction durations may be calculated to obtain a second duration average value, and then the attention suppression capability of the user may be evaluated according to a difference value between the first duration average value and the second duration average value, where a smaller difference value between the first duration average value and the second duration average value indicates that the interference marker has a smaller influence on the user, a stronger attention suppression capability of the user is provided, and a larger difference value between the first duration average value and the second duration average value indicates that the interference marker has a larger influence on the user and the weaker attention suppression capability of the user is provided. Of course, in other examples, the manner of evaluating the user attention suppressing capability according to the first reaction duration and the second reaction duration is not limited to the above manner, and for example, other statistics and manners that can more accurately reflect the reaction duration of the user may be used to calculate the first duration average and the second duration average.
Referring to fig. 6, based on the above embodiments, in some embodiments, step 02 further includes:
023. acquiring a first accuracy rate that a feedback behavior corresponding to a first test image made by a user meets a preset rule and a second accuracy rate that a feedback behavior corresponding to a second test image made by the user meets the preset rule;
the method comprises the steps of setting a standard result which corresponds to each first test image and accords with a preset rule and a standard result which corresponds to each second test image and accords with the preset rule according to the preset rule, comparing a feedback behavior which corresponds to the first test image and a feedback behavior which corresponds to the second test image and is made by a user with the corresponding standard results after obtaining the feedback behavior which corresponds to the first test image and the feedback behavior which corresponds to the second test image, judging whether the feedback behavior of the user is correct or not by judging whether the feedback behavior accords with the standard results or not, and then counting the judgment results to obtain the correct rate of the feedback behavior which corresponds to the first test image and the correct rate of the feedback behavior which corresponds to the second test image and is made by the user.
And after judging whether the feedback behavior of the user is correct or not, sending a judgment result through a prompt message, and displaying a next test image after or at the same time of sending the prompt message. The user can know whether the feedback behavior just made conforms to the preset rule or not according to the prompt message, so that when the user does not accurately understand the preset rule, the prompt message can help the user to understand the preset rule, and the user can find out the correct stimulation mark conforming to the preset rule from the target part of the test image.
032. calculating the average value of the first reaction time length to obtain a first time length average value, and calculating the average value of the second reaction time length to obtain a second time length average value;
a plurality of first test images and a plurality of second test images are obtained, and a plurality of first reaction periods and a plurality of second reaction periods are obtained. When only one first test image is available, taking the corresponding first reaction duration of the first test image as a first time duration average value; and when only one second test image exists, taking the second reaction time length corresponding to the second test image as the average value of the second time length.
033. Taking the ratio of the first time length average value to the first accuracy as a first correction response time length, and taking the ratio of the second time length average value to the second accuracy as a second correction response time length;
the attention suppressing capability of the user can be reflected by comparing the first time length average value and the second time length average value, but if the accuracy of the feedback behavior corresponding to the first test image made by the user is low, it cannot be said that the attention suppressing capability of the user is strong even if the obtained first time length average value and the second time length average value are close to each other. In order to more accurately evaluate the attention suppression capability of the user, the first time length average value is corrected by using the first accuracy to obtain a first correction response time length, and the second time length average value is corrected by using the second accuracy to obtain a second correction response time length.
034. And evaluating the attention suppression capability of the user according to the first correction reaction time length and the second correction reaction time length.
The attention suppressing capability of the user may be evaluated based on a difference between the first correction response time period and the second correction response time period. The larger the difference between the first correction response time length and the second correction response time length is, the larger the influence of the interference mark on the user is when the user searches for the stimulation mark meeting the preset rule from the target part of the test image, and the lower the attention suppression capability of the user is. The smaller the difference between the first correction response time length and the second correction response time length is, the shorter the response time length required for the user to make a correct response when the test image has the interference mark and the test image has no interference mark, and the user can be considered to be not easily affected by the interference mark.
Thus, when the first accuracy is low, the numerical value of the first correction response duration is increased relative to the average value of the first duration, and thus the first correction response duration and the second correction response duration can be regarded as response durations required by correct responses of users under the conditions of interfering stimulation and non-interfering stimulation respectively, so that the first correction response duration and the second correction response duration can more accurately reflect the influence of the feedback behavior on the interfering marks.
Further, quantitative scoring can be performed according to the difference value between the first correction response time length and the second correction response time length to obtain the attention suppression capability value, and the difference value between the first proportion and the second proportion is inversely related to the attention suppression capability value. The evaluation result obtained in this way is a quantified numerical value, and the attention suppression capability of the user can be reflected more objectively.
Referring to fig. 7, based on the above embodiment, step 02 further includes:
024. acquiring a first initial position of the eyeballs of the user when the first test images are started to be displayed and a second initial position of the eyeballs of the user when the second test images are started to be displayed;
the acquisition device may further include an eye tracker (eye linker), which may be used to monitor an eye trajectory of the user and extract a first initial position of the user's eyeball at the first time and a second initial position of the user's eyeball at the second time. The eye tracker may be connected to the device 100 via a communication interface 103 of the device 100.
025. Determining the corresponding position of each first initial position in the corresponding first test image and the corresponding position of each second initial position in the corresponding second test image;
when a user searches for a stimulation mark which meets a preset rule from a target part of a test image, the user can be guided to enable the eyes of the user to be located at preset positions, and then the corresponding position of each first initial position in the corresponding first test image, namely the eyeball gazing position of the user at a first initial moment, is determined according to the first initial positions collected by the eye tracker and the preset positions of the eyes of the user; and determining the position of each second initial position in the corresponding second test image according to the second initial positions and the preset positions of the eyes of the user, and determining the positions of the eyeballs of the user at the second initial moment.
026. Calculating a proportion of first initial positions of the plurality of first initial positions, which correspond to the positions in the corresponding first test image and are located in the background portion marked with the interference marks, as a first proportion, and a proportion of second initial positions of the plurality of second initial positions, which correspond to the positions in the corresponding second test image and are located in the background portion, as a second proportion;
in the process of acquiring the attention suppression capability of the user, the user needs to search the stimulation marks which accord with the preset rule from the target parts of the plurality of first test images and the target parts of the plurality of second test images in sequence. The first ratio can be understood as that in the process of searching for the stimulation mark meeting the preset rule from the target part of the first test image for multiple times, the first eye gazing position of the eyeball of the user is the proportion of the background part marked with the interference mark; the second scale may be understood as a scale in which the position of the first eye gaze of the eyeball of the user is the background portion when the stimulus mark conforming to the preset rule is searched for from the target portion of the second test image a plurality of times.
035. and adjusting the evaluation result of the attention suppression capability of the user according to the ratio difference of the first proportion and the second proportion.
The background portion of the first test image has an interference mark and the second test image has no interference mark. If the first scale and the second scale are the same or close to each other, it can be said that the probability of seeing the background portion at first sight is the same whether there is an interference mark or not when the user searches for the stimulation mark meeting the preset rule, and it can be said that the user is actually less affected by the interference mark. If the difference between the first ratio and the second ratio is large, it can indicate that the user is greatly affected by the interference mark.
The association degree between the reason that the first correction response time length of the user is greater than the second correction response time length and the interference mark can be analyzed according to the difference between the first proportion and the second proportion. The evaluation result of the attention suppression capability of the user can be adjusted according to the difference value of the first proportion and the second proportion, so that the final result of the attention suppression capability of the user is more accurate. It is understood that if the difference between the first ratio and the second ratio is large, it indicates that the reason that the first correction response time length is greater than the second correction response time length is greatly related to the interference flag, and if the difference between the first ratio and the second ratio is the same as or close to the first ratio, it indicates that the reason that the first correction response time length is greater than the second correction response time length may not be related to or not much related to the interference flag.
Further, after the attention suppressing capability value is obtained by performing quantitative scoring according to the difference value between the first correction reaction duration and the second correction reaction duration, the corrected attention suppressing capability value is obtained by multiplying the specific value difference by the attention suppressing capability value in the form of a correction coefficient. So that the user's attention suppressing ability can be evaluated more accurately. The correction factor may be positively correlated with the ratio difference. For example, the correction factor may be set between 0 and 1, with the larger the difference in the ratio, the larger the correction factor.
Please refer to fig. 2, fig. 4 and fig. 8, step 01 further includes:
013. when feedback data corresponding to the test image and fed back by the user is not acquired, judging whether the time length for displaying the test image exceeds a preset time length or not;
014. and when the time length for displaying the test image exceeds the preset time length, controlling the display to display the next test image.
When the user leaves or does other irrelevant things halfway, the user may not make feedback for a long time, and the feedback data fed back by the user obtained in this case is inaccurate and cannot accurately reflect the attention suppression capability of the user, so that when the preset time is exceeded and the feedback data of the user is not obtained, the next test image is displayed instead of continuously waiting for the feedback of the user, so that on one hand, the reliability of the obtained feedback data can be improved, and on the other hand, the user can focus more on searching the stimulation mark which meets the preset rule from the target part of the test image. In this embodiment, the preset duration is 2s, but in other embodiments, the preset duration may be set to other values.
Further, when the preset time length is exceeded and the feedback data of the user is not obtained, a reminding message may be sent to remind the user of time-out, for example, a voice reminding message "toe slow" may be sent. In this way, the user may be prompted to concentrate on finding a stimulus label that meets the preset rules from the target portion of the test image at time out.
The present application also provides an attention suppressing capability acquiring apparatus, including:
the display module is used for controlling the display to display one or more test images, each test image comprises a background part and a target part, the target part and the background part are marked with stimulation marks, and the background part of at least one test image is marked with an interference mark;
the feedback data acquisition module is used for acquiring feedback data which is made by the target object and corresponds to the test image when the target object searches the stimulation mark which accords with the preset rule from the test image;
and the data processing module is used for determining the attention suppression capability of the target object according to the feedback data.
Controlling a display to display one or more test images, wherein each test image comprises a background part and a target part, the target part and the background part are marked with stimulation marks, and the background part of at least one test image is marked with an interference mark;
acquiring feedback data corresponding to the test image, which is fed back by a user when the user searches the stimulation mark meeting the preset rule from the target part of the test image;
and evaluating the attention suppression capability of the user according to the feedback data.
Further, the feedback data includes PD components corresponding to the test image generated by the user when the user searches for the stimulation mark conforming to the preset rule from the target portion of the test image.
Further, the number of the test images is multiple, and the display module comprises:
the display unit is used for controlling the display to display a test image;
the display unit is further used for controlling the display to display the next test image after the feedback data corresponding to the test image fed back by the user is acquired.
Furthermore, one part of the test image is a first test image, the other part of the test image is a second test image, the background part of the first test image is marked with an interference mark, the second test image is not marked with the interference mark,
the feedback data acquisition module comprises:
the first obtaining unit is used for obtaining a first initial moment when the display of each first test image is started and a first feedback moment when a user searches a stimulation mark which accords with a preset rule from a target part of the first test image, wherein the feedback moment corresponds to the first test image, and the time difference between the first feedback moment and the first initial moment corresponding to the same first test image is used as a first reaction duration;
a second obtaining unit, configured to obtain a second initial time when each second test image starts to be displayed and a second feedback time when the user searches for a stimulation marker that meets a preset rule from a target portion of the second test image, where the user performs a feedback behavior corresponding to the second test image, and use a time difference between the second feedback time and the second initial time corresponding to the same second test image as a second response time;
the data processing module comprises:
a first evaluation unit for evaluating the attention suppressing capability of the user according to the first reaction period and the second reaction period.
Further, the feedback data acquisition module further comprises:
a third obtaining unit, configured to obtain a first accuracy rate that a feedback behavior corresponding to the first test image made by the user meets a preset rule, and a second accuracy rate that a feedback behavior corresponding to the second test image made by the user meets the preset rule;
the data processing module comprises:
the first calculating unit is used for calculating the average value of the first reaction time length to obtain a first time length average value and calculating the average value of the second reaction time length to obtain a second time length average value;
the second calculation unit is used for taking the ratio of the first time length average value to the first accuracy as a first correction response time length and taking the ratio of the second time length average value to the second accuracy as a second correction response time length;
and a second evaluation unit for evaluating the attention suppressing capability of the user based on the first correction reaction time length and the second correction reaction time length.
Further, the feedback data acquisition module further comprises:
a fourth acquiring unit, configured to acquire a first initial position of the user's eyeball when each first test image starts to be displayed and a second initial position of the user's eyeball when each second test image starts to be displayed;
the position determining unit is used for determining the corresponding position of each first initial position in the corresponding first test image and the corresponding position of each first initial position in the corresponding second test image;
a ratio calculation unit configured to calculate, as a first ratio, a ratio of a first initial position of the plurality of first initial positions, which position corresponds to the first test image and is located in the background portion marked with the interference mark, and, as a second ratio, a ratio of a second initial position of the plurality of second initial positions, which position corresponds to the second test image and is located in the background portion, and to calculate a ratio of the first initial position of the plurality of first initial positions, which position corresponds to the second test image and is located in the background portion marked with the interference mark, and the second initial position of the plurality of second initial positions, which position corresponds to the second test image and is located in the background portion;
the data processing module further comprises:
and the third evaluation unit adjusts the evaluation result of the attention suppression capability of the user according to the ratio difference of the first proportion and the second proportion.
Further, the display module further includes:
the judging unit is used for judging whether the time length for displaying the test image exceeds the preset time length or not when the feedback data corresponding to the test image and fed back by the user is not acquired;
the display unit is also used for controlling the display to display the next test image when the time length for displaying the test image exceeds the preset time length.
An embodiment of the present application also provides a computer storage medium, where the computer storage medium stores a computer program for attention suppression capability acquisition, the computer program enables a computer to execute a part or all of the steps of any one of the methods described in the above method embodiments, and the computer includes the apparatus 100 of the embodiment of the present application.
In the above embodiments, the implementation may be wholly or partially realized by software, hardware, firmware, or any combination thereof. When implemented in software, may be implemented in whole or in part in the form of a computer program product. The computer program product includes one or more computer instructions. When loaded and executed on a computer, cause the processes or functions described in accordance with the embodiments of the application to occur, in whole or in part. The computer may be a general purpose computer, a special purpose computer, a network of computers, or other programmable device. The computer instructions may be stored in a computer readable storage medium or transmitted from one computer readable storage medium to another, for example, the computer instructions may be transmitted from one website, computer, server, or data center to another website, computer, server, or data center by wire (e.g., coaxial cable, fiber optic, digital subscriber line) or wirelessly (e.g., infrared, wireless, microwave, etc.). The computer-readable storage medium can be any available medium that can be accessed by a computer or a data storage device, such as a server, a data center, etc., that incorporates one or more of the available media. The usable medium may be a magnetic medium (e.g., floppy disk, hard disk, magnetic tape), an optical medium (e.g., compact disk), or a semiconductor medium (e.g., solid state disk), among others. In the foregoing embodiments, the descriptions of the respective embodiments have respective emphasis, and for parts that are not described in detail in a certain embodiment, reference may be made to related descriptions of other embodiments.
In the foregoing embodiments, the descriptions of the respective embodiments have respective emphasis, and for parts that are not described in detail in a certain embodiment, reference may be made to related descriptions of other embodiments.
In the embodiments provided in the present application, it should be understood that the disclosed apparatus may be implemented in other manners. For example, the above-described embodiments of the apparatus are merely illustrative, and for example, the division of the units is merely a logical division, and the actual implementation may have another division, for example, a plurality of units or components may be combined or integrated into another system, or some features may be omitted or not executed. In addition, the indirect coupling or direct coupling or communication connection between each other shown or discussed may be through some interfaces, indirect coupling or communication connection of devices or units, and may be electrical or in other forms.
The units described as separate parts may or may not be physically separate, and parts displayed as units may or may not be physical units, may be located in one place, or may be distributed on a plurality of network units. Some or all of the units can be selected according to actual needs to achieve the purpose of the solution of the embodiment.
In addition, functional units in the embodiments of the present application may be integrated into one processing unit, or each unit may exist alone physically, or two or more units are integrated into one unit. The integrated unit may be implemented in the form of hardware, or may also be implemented in the form of a software functional unit.
The integrated unit, if implemented in the form of a software functional unit and sold or used as a stand-alone product, may be stored in a computer readable storage medium. Based on such understanding, the technical solution of the present application may be substantially implemented or contributed to by the prior art, or all or part of the technical solution may be embodied in a software product, which is stored in a storage medium and includes instructions for causing a computer device (which may be a personal computer, a server, or a network device) to execute all or part of the steps of the method according to the embodiments of the present application. And the aforementioned storage media may include, for example: various media capable of storing program codes, such as a usb disk, a removable hard disk, a Read-Only Memory (ROM), a Random Access Memory (RAM), a magnetic disk, or an optical disk.
Claims (8)
1. An attention suppressing capability acquiring method characterized by comprising:
controlling a display to display one or more test images, wherein each test image comprises a background part and a target part, the target part and the background part are marked with stimulation marks, and the background part of at least one test image is marked with an interference mark;
acquiring feedback data corresponding to the test image, which is fed back by a user when the user searches for a stimulation mark meeting a preset rule from a target part of the test image;
evaluating attention suppression capabilities of the user according to the feedback data;
the number of the test images is multiple, and the controlling the display to display the test images comprises:
controlling a display to display a test image;
after feedback data corresponding to the test image and fed back by the user is acquired, controlling the display to display the next test image;
one part of the test image is a first test image, the other part of the test image is a second test image, the background part of the first test image is marked with an interference mark, the second test image is not marked with the interference mark,
the obtaining feedback data corresponding to the test image and fed back by the user when the user searches for the stimulation mark meeting the preset rule from the target part of the test image comprises:
acquiring a first initial moment when each first test image starts to be displayed and a first feedback moment when the user searches a stimulation mark which accords with a preset rule from a target part of the first test image, wherein the first feedback moment corresponds to the first test image, and taking a time difference between the first feedback moment and the first initial moment which correspond to the same first test image as a first reaction duration;
acquiring a second initial moment when the display of each second test image is started and a second feedback moment when the user searches for a stimulation mark which accords with a preset rule from a target part of the second test image, wherein the feedback action corresponding to the second test image is performed by the user, and taking the time difference between the second feedback moment and the second initial moment corresponding to the same second test image as a second reaction duration;
said evaluating an attention suppression capability of the user based on the feedback data comprises:
and evaluating the attention suppression capability of the user according to the first reaction duration and the second reaction duration.
2. The attention suppressing capability obtaining method as claimed in claim 1, wherein the feedback data includes a PD component corresponding to the test image generated by the user when the user searches for a stimulation marker conforming to a preset rule from a target portion of the test image, the PD component being an electroencephalogram component for evaluating attention suppressing capability.
3. The attention suppressing capability obtaining method as claimed in claim 1, wherein the obtaining of the feedback data corresponding to the test image, which the user feedbacks when the user searches for the stimulation mark conforming to the preset rule from the target portion of the test image, further comprises:
acquiring a first accuracy rate that a feedback behavior corresponding to the first test image made by the user meets the preset rule and a second accuracy rate that a feedback behavior corresponding to the second test image made by the user meets the preset rule;
said evaluating an attention suppression capability of the user based on the feedback data comprises:
calculating the average value of the first reaction time length to obtain a first time length average value, and calculating the average value of the second reaction time length to obtain a second time length average value;
taking the ratio of the first time length average value to the first accuracy as a first correction response time length, and taking the ratio of the second time length average value to the second accuracy as a second correction response time length;
and evaluating the attention suppression capability of the user according to the first correction reaction time length and the second correction reaction time length.
4. The attention suppressing capability obtaining method as claimed in claim 3, wherein the obtaining of the feedback data corresponding to the test image fed back by the user when the user searches for the stimulation mark conforming to the preset rule from the target portion of the test image further comprises:
acquiring a first initial position of the eyeballs of the user when the first test images are started to be displayed and a second initial position of the eyeballs of the user when the second test images are started to be displayed;
determining the corresponding position of each first initial position in the corresponding first test image and the corresponding position of each second initial position in the corresponding second test image;
calculating a proportion of first initial positions of the plurality of first initial positions, which correspond to the positions in the corresponding first test image and are located in the background portion marked with the interference marks, as a first proportion, and a proportion of second initial positions of the plurality of second initial positions, which correspond to the positions in the corresponding second test image and are located in the background portion, as a second proportion;
said evaluating the user's attention suppression capability based on the feedback data further comprises:
and adjusting the evaluation result of the attention suppression capability of the user according to the ratio difference of the first proportion and the second proportion.
5. The attention suppressing capability obtaining method as set forth in claim 1, wherein the step of displaying the test image further comprises:
when feedback data corresponding to the test image and fed back by the user is not acquired, judging whether the time length for displaying the test image exceeds a preset time length or not;
and when the time length for displaying the test image exceeds the preset time length, controlling the display to display the next test image.
6. An attention suppressing capability acquiring apparatus characterized by comprising:
the display module is used for controlling the display to display one or more test images, each test image comprises a background part and a target part, the target part and the background part are marked with stimulation marks, and the background part of at least one test image is marked with an interference mark;
the feedback data acquisition module is used for acquiring feedback data corresponding to the test image, which is made by the target object when the target object searches the stimulation mark which accords with the preset rule from the test image;
the data processing module is used for determining the attention suppression capability of the target object according to the feedback data;
the number of the test images is multiple, and the display module comprises:
the display unit is used for controlling the display to display a test image; after feedback data corresponding to the test image and fed back by the user is acquired, controlling a display to display the next test image;
one part of the test image is a first test image, the other part of the test image is a second test image, the background part of the first test image is marked with an interference mark, the second test image is not marked with the interference mark,
the feedback data acquisition module comprises:
the first obtaining unit is used for obtaining a first initial moment when the display of each first test image is started and a first feedback moment when a user searches a stimulation mark which accords with a preset rule from a target part of the first test image, wherein the feedback moment corresponds to the first test image, and the time difference between the first feedback moment and the first initial moment corresponding to the same first test image is used as a first reaction duration;
a second obtaining unit, configured to obtain a second initial time when each second test image starts to be displayed and a second feedback time when the user searches for a stimulation marker that meets a preset rule from a target portion of the second test image, where the user performs a feedback behavior corresponding to the second test image, and use a time difference between the second feedback time and the second initial time corresponding to the same second test image as a second response time;
the data processing module comprises:
and the first evaluation unit is used for evaluating the attention suppression capability of the user according to the first reaction duration and the second reaction duration.
7. An attention suppression capability acquisition device comprising a processor, a memory, a communication interface, and one or more programs stored in the memory and configured for execution by the processor, the programs including instructions for performing the steps in the method of any one of claims 1-5.
8. A computer-readable storage medium, characterized by storing a computer program for attention suppression capability acquisition, wherein the computer program causes a computer to execute the method of any one of claims 1 to 5.
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