Cognitive disorder screening system, electronic equipment and storage medium

Abstract

The invention provides a cognitive impairment screening system. A cognitive impairment screening system comprises an eye movement tracker, a testing end device, a tested end device and a processing device. The testing end device responds to the configuration operation of the testee and generates a test process of the subject, and the test process comprises test tasks corresponding to the cognitive competence of at least one dimension; the tested end device is provided with a first display device, and the test content corresponding to each test task is sequentially and visually displayed through the first display device; the eye movement tracker collects eye movement data of the subject for each test task in the test process and transmits the eye movement data to the processing equipment; the processing device determines a cognitive screening index for the eye movement data, and generates a screening recommendation result according to the cognitive screening index; the cognitive screening index comprises at least one of the test result accuracy data of the test task and the fixation time ratio of the region of interest in the test task, so that the cognitive impairment screening efficiency and accuracy are improved.

Description

Technical Field

[0001] This invention relates to the field of detection technology, and more particularly to a cognitive impairment screening system, electronic device, and storage medium. Background Technology

[0002] Cognitive impairment refers to a condition in which cognitive functions (such as memory, attention, language, executive function, visuospatial ability, etc.) are lower than the normal level of peers due to factors such as aging, disease (such as Alzheimer's disease, stroke), trauma, mental illness (such as depression), or genetics, and this significantly affects daily living abilities.

[0003] In existing technologies, assessment scales are typically used to screen for cognitive impairment. However, each assessment is time-consuming, lasting 20-45 minutes, and cannot dynamically quantify subtle changes in cognitive function. Furthermore, the screening process using these scales requires participants to express themselves verbally or read text, heavily relying on their cultural background and education level. This makes the scales prone to misinterpretation in cross-cultural contexts, leading to low accuracy in cognitive impairment assessments. Summary of the Invention

[0004] This invention provides a cognitive impairment screening system, electronic device, and storage medium to improve the efficiency and accuracy of cognitive impairment screening.

[0005] According to one aspect of the present invention, a cognitive impairment screening system is provided, the system comprising: an eye tracker, a testing end device, a subject end device, and a processing device; wherein,

[0006] The testing device responds to the configuration operation of the tester and generates the test process for the subject, wherein the test process includes test tasks corresponding to at least one dimension of cognitive ability;

[0007] The test device is equipped with a first display device, through which the test content corresponding to each test task in the test process is displayed in a visual manner in sequence.

[0008] The eye tracker collects the eye movement data of the subjects for each test task during the test and transmits the eye movement data to the processing device;

[0009] The processing device determines the cognitive screening indicators for the subjects based on the eye movement data corresponding to each test task, and generates screening recommendation results for the subjects based on the cognitive screening indicators. The cognitive screening indicators include at least one of the test result accuracy data of the test task and the fixation time ratio of the region of interest in the test task.

[0010] According to another aspect of the present invention, an electronic device is provided, the electronic device comprising:

[0011] at least one processor; and

[0012] a memory communicatively connected to the at least one processor; wherein

[0013] The memory stores a computer program executable by the at least one processor, and the computer program is executed by the at least one processor to enable the at least one processor to perform the following processing process: sequentially presenting test content corresponding to each test task in a test procedure to a subject, the test procedure including test tasks corresponding to at least one dimension of cognitive ability respectively; obtaining eye movement data of the subject for each test task, determining a cognitive screening index of the subject according to the eye movement data corresponding to each test task, and generating a screening recommendation result of the subject according to the cognitive screening index of the subject; the cognitive screening index includes at least one of test result accuracy data of the test task and a fixation time ratio of a region of interest in the test task.

[0014] According to another aspect of the present application, a computer readable storage medium is provided, the computer readable storage medium stores computer instructions for enabling a processor to implement the following processing process when executed: sequentially presenting test content corresponding to each test task in a test procedure to a subject, the test procedure including test tasks corresponding to at least one dimension of cognitive ability respectively; obtaining eye movement data of the subject for each test task, determining a cognitive screening index of the subject according to the eye movement data corresponding to each test task, and generating a screening recommendation result of the subject according to the cognitive screening index of the subject; the cognitive screening index includes at least one of test result accuracy data of the test task and a fixation time ratio of a region of interest in the test task.

[0015] The technical scheme of the embodiment of the present application provides a cognitive impairment screening system, which is configured with an eye tracking instrument, a testing terminal device, a subject terminal device and a processing device; the testing terminal device generates a test procedure of the subject in response to a configuration operation of a tester, wherein the test procedure includes at least one test task corresponding to a cognitive ability of each dimension, thereby providing process support for cognitive impairment evaluation of the subject; the subject terminal device is configured with a first display device, and the test content corresponding to each test task in the test procedure is visually displayed in sequence through the first display device, so that the subject can complete the corresponding test task according to the test content; the eye tracking instrument collects the eye movement data of the subject for each test task in the test process, and transmits the eye movement data to the processing device, thereby realizing the collection of the eye movement data and providing data support for subsequent analysis and processing; the processing device determines a cognitive screening index of the subject according to the eye movement data corresponding to each test task, and generates a screening recommendation result of the subject according to the cognitive screening index of the subject; the cognitive screening index includes at least one of test result accuracy data of the test task and a fixation time ratio of a region of interest in the test task, thereby realizing the cognitive impairment screening of the subject, solving the problems of low accuracy and low efficiency of cognitive impairment screening in the prior art, and improving the efficiency and accuracy of cognitive impairment screening.

[0016] It should be understood that the content described in this part is not intended to identify the key or important features of the embodiments of the present application, nor is it intended to limit the scope of the present application. Other features of the present application will become apparent from the following description. BRIEF DESCRIPTION OF DRAWINGS

[0017] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings needed in the embodiment description will be briefly introduced below. Obviously, the drawings in the following description are only some embodiments of the present application, and other drawings can also be obtained by those skilled in the art without creative labor.

[0018] Figure 1 is a structural schematic diagram of a cognitive impairment screening system provided by the first embodiment of the present application;

[0019] Figure 2 is a schematic diagram of a task description interface provided by the embodiment of the present application;

[0020] Figure 3 is a schematic diagram of a memory encoding task interface provided by the embodiment of the present application;

[0021] Figure 4 is a schematic diagram of a cognitive paradigm library interface provided by the embodiment of the present application;

[0022] Figure 5is a schematic diagram of an interaction page of a test end device provided by an embodiment of the present application;

[0023] Figure 6 is a schematic diagram of a test flow editing interface provided by an embodiment of the present application;

[0024] Figure 7 is a schematic diagram of an interface of a first display device in a subject end device provided by the third embodiment of the present application;

[0025] Figure 8 is a platform architecture diagram of a cognitive impairment screening system provided by an embodiment of the present application;

[0026] Figure 9 is a swim lane diagram of a cognitive impairment screening system provided by an embodiment of the present application;

[0027] Figure 10 is a schematic diagram of an eye movement calibration interface provided by an embodiment of the present application;

[0028] Figure 11 is a schematic diagram of a quick entry interface of a cognitive impairment screening system provided by an embodiment of the present application;

[0029] Figure 12 is a schematic diagram of a test record and analysis interface provided by an embodiment of the present application;

[0030] Figure 13 is a structural schematic diagram of an electronic device provided by the fourth embodiment of the present application. DETAILED DESCRIPTION

[0031] In order to enable persons skilled in the art to better understand the present application, the technical solutions in the embodiments of the present application will be described clearly and completely below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only a part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by persons skilled in the art without creative labor should fall within the scope of protection of the present application.

[0032] It should be noted that the terms "first," "second," etc., in the specification, claims, and accompanying drawings of this invention are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence. It should be understood that such data can be interchanged where appropriate so that the embodiments of the invention described herein can be implemented in orders other than those illustrated or described herein. Furthermore, the terms "comprising" and "having," and any variations thereof, are intended to cover a non-exclusive inclusion; for example, a process, method, system, product, or apparatus that comprises a series of steps or units is not necessarily limited to those steps or units explicitly listed, but may include other steps or units not explicitly listed or inherent to such processes, methods, products, or apparatus.

[0033] Example 1

[0034] Figure 1 This is a schematic diagram of a cognitive impairment screening system provided in Embodiment 1 of the present invention. This embodiment is applicable to situations where cognitive impairment screening is performed on subjects. Figure 1 As shown, the cognitive impairment screening system includes: an eye tracker 110, a testing device 120, a subject device 130, and a processing device 140. The testing device 120, in response to the operator's configuration, generates a test flow for the subject, which includes test tasks corresponding to at least one dimension of cognitive ability. The subject device 130 is equipped with a first display device, which sequentially visualizes the test content corresponding to each test task in the test flow. The eye tracker 110 collects eye movement data of the subject for each test task during the test and transmits the eye movement data to the processing device 140. The processing device 140 determines the subject's cognitive screening indicators based on the eye movement data corresponding to each test task and generates screening recommendation results for the subject based on these indicators. The cognitive screening indicators include at least one of the accuracy data of the test results for the test task and the fixation time ratio of the region of interest in the test task.

[0035] The measurer is a person who performs cognitive impairment screening on the subject, and the measurer includes but is not limited to medical staff. The subject is an object who receives cognitive impairment screening, and the subject includes but is not limited to the elderly and brain injury patients. The measurer performs cognitive impairment screening on the subject by operating the cognitive impairment screening system. The measurer terminal device 120 is a device operated by the measurer, and is used to generate and manage the test process of the subject. The measurer terminal device 120 includes but is not limited to a computer and a tablet computer. The measurer terminal device 120 and the processing device 140 can transmit data through electrical connection, and can also transmit data through wireless connection. The configuration operation is an operation of setting the screening process by the measurer through the measurer terminal device 120, for example, the measurer can operate the measurer terminal device 120 according to the basic information, past medical history and current symptom description of the subject, to generate the test process corresponding to the subject, and provide process support for cognitive impairment evaluation of the subject. In the test process, at least one test task corresponding to each dimension cognitive ability is included. Optionally, the at least one dimension cognitive ability includes at least one of cognitive domain memory, visual space ability, logical reasoning ability, execution ability and attention. Different subjects correspond to different test processes, and the same subject corresponds to different test processes at different times.

[0036] The measurer terminal device 120 and the subject terminal device 130 can transmit data through electrical connection, and can also transmit data through wireless connection. The subject terminal device 130 is a device for displaying test content to the subject. The subject terminal device 130 is configured with a first display device, and the first display device is used to visually display the test content corresponding to each test task in the test process in sequence. For example, the subject terminal device 130 receives the test process transmitted by the measurer terminal device 120 through communication, the test process includes a plurality of test tasks corresponding to a plurality of dimension cognitive abilities, and the first display device configured in the subject terminal device 130 visually displays the plurality of test tasks corresponding to the plurality of dimension cognitive abilities, so that the subject performs cognitive impairment screening according to the corresponding test task. In some embodiments of the present application, in order to improve the display clarity of the display content of the eye movement paradigm, the size of the first display device can be set to be greater than or equal to a set size, for example, the set size can be 23.8 inches.

[0037] Optionally, the subject terminal device 130 is further used for: performing dynamic calibration on the subject before executing the test task.

[0038] The dynamic calibration includes at least one of the sitting posture calibration and the eye movement calibration. Before executing the test task, the sitting posture calibration and the eye movement calibration are performed on the subject, which is beneficial to reduce the error of eye movement data caused by the sitting posture, and is beneficial to improve the accuracy of the eye movement data.

[0039] The eye tracker 110 is configured to collect eye movement data of the subject during the cognitive impairment screening process. The eye movement data is the eye movement trajectory information. The subject can generate the eye movement data during the execution of each test task. In some embodiments of the present application, the eye tracker 110 includes an infrared light source, an infrared stereo camera, and an optical lens group. The infrared light source is configured to emit infrared light to irradiate the subject's eye to form a corneal reflection. The optical lens group is configured to calibrate the optical path to ensure that the infrared light uniformly irradiates the subject's eye and focuses the reflected light on the infrared stereo camera. The infrared stereo camera is configured to collect the subject's eye image to capture the dynamic changes of the pupil and the corneal reflection point. The eye tracker 110 and the processing device 140 can be connected by an electrical connection to transmit the eye movement data, for example, the eye movement data can be transmitted through a universal serial bus (USB) interface.

[0040] In some embodiments of the present application, the sampling rate of the eye tracker 110 can be 60 Hz. The eye tracker 110 is configured with an infrared stereo camera, which records the gaze point of the subject at a time interval of 0.02 seconds. The eye tracker 110 can be disposed below or above the first display device configured by the subject terminal device 130 to ensure that the eye tracker 110 can track the subject without obstruction, which is beneficial to improve the accuracy of the eye movement data.

[0041] The processing device 140 is a device configured to analyze the eye movement data, and the processing device 140 includes but is not limited to a server. The processing device 140 stores a processing algorithm for the eye movement data. The processing device 140 receives the eye movement data transmitted by the eye tracker 110 through the USB interface, processes the eye movement data using the processing algorithm for the eye movement data, obtains the cognitive screening index of the subject, and generates the screening recommendation result of the subject according to the cognitive screening index of the subject. The cognitive screening index is quantitative data obtained by analyzing the eye movement data, which is used to represent the performance of the subject in the cognitive dimensions such as memory, visual spatial ability, logical reasoning ability, executive ability, and attention in the cognitive domain. The cognitive screening index can include test result accuracy data of the test task, can also include gaze time ratio of the region of interest in the test task, and can also include test result accuracy data of the test task and gaze time ratio of the region of interest in the test task. The cognitive screening index can be selected according to the demand, which is not limited here. The test result accuracy data is data representing the subject's correct completion of the test task, which can include test result accuracy rate and corresponding score. The gaze time ratio is the ratio between the time when the subject's line of sight stays in the region of interest and the corresponding time when the test is completed, which is used to represent the subject's attention allocation pattern. The screening recommendation result is data representing the cognitive function of the subject, which is used to represent whether the subject has cognitive impairment and the corresponding level.

[0042] For example, when the subject performs the test task, the time of the subject staying in each region of interest and the total time of completing the test task are counted, the ratio between the time of staying in each region of interest and the total time of completing the test task is calculated, the ratio is taken as the gaze time ratio of the subject in each region of interest, the gaze time ratio of each region of interest is screened, the region of interest corresponding to the maximum value of the gaze time ratio is taken as the correct option selected by the subject, and the consistency analysis of the correct option and the answer item is performed. When the correct option is consistent with the answer item, it means that the subject selects correctly. The number of test contents selected correctly by the subject in the test task is counted, and the ratio between the number of test contents selected correctly and the total number of test contents is calculated. The ratio is taken as the test result accuracy rate, which is used for cognitive impairment screening and provides accurate data support for cognitive impairment screening.

[0043] For the same dimension of cognitive ability, different cognitive levels correspond to different scores. When the subject selects correctly, the score corresponding to the cognitive level is obtained, and when the subject selects incorrectly, the score is 0. The scores of the subject after completing the test task corresponding to each dimension are counted, the sum of the scores after the test tasks corresponding to multiple dimensions is calculated, and the sum of the scores is taken as the corresponding score in the test result accuracy data, which is used for cognitive impairment screening and provides accurate data support for cognitive impairment screening.

[0044] During the process of eye movement data collection, when the head position of the subject changes, the collected eye movement data has errors. In order to reduce the error of the eye movement data, the processing device 140 can calibrate the eye movement data. The processing device 140 stores a dynamic calibration algorithm, receives the eye movement data transmitted by the eye tracker 110 through the USB interface, calculates the gaze point drift rate of the subject according to the received eye movement data, and triggers the dynamic calibration algorithm to dynamically compensate the eye movement data when the gaze point drift rate of the subject is greater than a preset threshold. The dynamic calibration algorithm includes but is not limited to five-point calibration method. For example, the preset threshold is set to 5%, and the processing device 140 triggers the dynamic calibration algorithm to dynamically compensate the eye movement data when the gaze point drift rate of the subject is greater than 5%, which is beneficial to improve the accuracy of the eye movement data and provide accurate data support for subsequent analysis and processing.

[0045] On the basis of the above embodiment, the subject terminal device 130 is further used for: playing a prompt voice in the process of displaying the test task, and the prompt voice includes a task description voice and an encouragement feedback voice.

[0046] The prompt voice is voice content played by the subject terminal device 130. The prompt voice includes task description voice and encouragement feedback voice. The task description voice is voice content that conveys the goal, operation rules, and process guide of the test task to the subject through audio.

[0047] Specifically, during the presentation of the test task, the subject terminal device 130 plays the task description voice to help the subject understand the test task, and thus help the subject complete the test task according to the task description; the subject terminal device 130 plays the encouragement feedback voice to help enhance the subject's cooperation, and thus ensure that the subject completes the test task.

[0048] On the basis of the above-mentioned embodiments, the prompt voice is stored as a static resource in the processing device 140, each eye movement paradigm corresponds to a prompt voice encapsulated into an independent component, the eye movement paradigm and the prompt voice corresponding to each other are provided with the same identifier, and for multiple eye movement paradigms included in the test process, the corresponding prompt voice is called based on the identifier of the eye movement paradigm. During the execution of the test task, the corresponding prompt voice is called according to the identifier of the eye movement paradigm corresponding to the executed test task, and the corresponding prompt voice is played.

[0049] On the basis of the above-mentioned embodiments, the subject terminal device 130 is further configured to guide the subject with the prompt text and play the prompt voice simultaneously during the presentation of the test task, so as to ensure that the subject completes the test task smoothly. Different test tasks correspond to different texts and prompt voices. For example, referring to Figure 2 and Figure 3 , Figure 2 is a schematic diagram of a task description interface provided by an embodiment of the present application. The subject terminal device displays the task description interface when the test process starts. Figure 3 is a schematic diagram of a memory coding task interface provided by an embodiment of the present application. The memory coding task is described by voice and prompt voice simultaneously when the memory coding task starts.

[0050] In some embodiments of the present application, when the subject does not execute the corresponding test content within a preset time, the subject terminal device 130 can play the prompt voice to prompt the subject to complete the corresponding test content.

[0051] On the basis of the above-mentioned embodiments, the prompt voice corresponding to the same test task includes at least one, for example, can include task description voice and at least one encouragement feedback voice, and the output time of different prompt voices is different. The subject terminal device 130 is configured with an application programming interface (Application Programming Interface, API), and the subject terminal device 130 sets a timer by using a setTimeout function of JavaScript, the timer starts timing at the start of each test task, and the start duration of the test task is obtained. According to the start duration of the test task, the playing of different prompt voices corresponding to the test task is triggered. For example, at the first start duration of the test task, the task description voice is played, and at the second start duration of the test task, the encouragement feedback voice is played, which is beneficial to enhance the cooperation degree of the subject, and further ensures that the subject completes the test task.

[0052] Optionally, the subject terminal device 130 is further used for: setting the volume of the prompt voice according to the set type attribute value of the subject.

[0053] The set type attribute value can include the age, hearing ability and speech speed acceptance ability of the subject. The subject terminal device 130 stores a prompt voice volume comparison table corresponding to different ages and / or hearing abilities, and matches the age and / or hearing ability of the subject to obtain the volume of the prompt voice corresponding to the subject, so as to ensure that the subject can clearly hear the content of the prompt voice, which is beneficial to ensure that the subject completes the test task smoothly, and further is beneficial to improve the accuracy of the eye movement data.

[0054] Optionally, the subject terminal device 130 is further used for: performing volume test processing before executing the test task, and obtaining the volume of the prompt voice.

[0055] Specifically, before executing the test task, the subject terminal device 130 performs volume test processing on the subject to obtain the hearing ability corresponding to the subject, and determines the volume of the prompt voice according to the hearing ability of the subject, so as to ensure that the subject can clearly hear the content of the prompt voice, which is beneficial to ensure that the subject completes the test task smoothly, and further is beneficial to improve the accuracy of the eye movement data.

[0056] Optionally, the subject terminal device 130 is further used for: setting the speech speed of the prompt voice according to the set type attribute value of the subject.

[0057] Specifically, the subject terminal device 130 stores a prompt voice speed corresponding table corresponding to different ages and / or speech speed acceptance capabilities, and matches the age and / or speech speed acceptance capability of the subject to obtain the speech speed of the prompt voice corresponding to the subject, so as to ensure that the subject understands the content of the prompt voice, which is conducive to ensuring that the subject successfully completes the test task, and further conducive to improving the accuracy of the eye movement data.

[0058] Optionally, the subject terminal device 130 is further configured to: perform a test processing of the speech speed before performing the test task, and obtain the speech speed of the prompt voice.

[0059] Specifically, the subject terminal device 130 performs a test processing of the speech speed on the subject before performing the test task, obtains the speech speed acceptance capability corresponding to the subject, and determines the speech speed of the corresponding prompt voice according to the speech speed acceptance capability corresponding to the subject, so as to ensure that the subject understands the content of the prompt voice, which is conducive to ensuring that the subject successfully completes the test task, and further conducive to improving the accuracy of the eye movement data.

[0060] Optionally, the subject terminal device 130 is further configured to: set the volume and the speech speed of the prompt voice according to the set type attribute value of the subject.

[0061] Optionally, the subject terminal device 130 is further configured to: perform a test processing of the volume and the speech speed before performing the test task, and obtain the volume and the speech speed of the prompt voice.

[0062] In order to ensure the accuracy of the collected eye movement data, dynamic calibration can also be performed on the subject before performing the test task.

[0063] For example, when the subject is an elderly user, the volume of the prompt voice can be increased by 44%, and the volume of the prompt voice can reach 67.5 decibels to 75.3 decibels. When the subject is an elderly user, the speech speed of the prompt voice can be reduced to 0.9 times of the original speech speed, so as to ensure that the elderly user can clearly hear and understand the content of the prompt voice, and further conducive to the elderly user to successfully complete the test task.

[0064] The technical scheme of the embodiment provides a cognitive impairment screening system, which comprises an eye tracking instrument, a test end device, a subject end device and a processing device. The test end device generates a test procedure of a subject in response to a configuration operation of a tester, wherein the test procedure comprises at least one test task corresponding to a cognitive ability of each dimension, thereby providing process support for cognitive impairment evaluation of the subject. The subject end device is configured with a first display device, which sequentially displays the test content corresponding to each test task in the test procedure, so that the subject can complete the corresponding test task according to the test content. The eye tracking instrument collects the eye movement data of the subject for each test task in the test process, and transmits the eye movement data to the processing device, thereby realizing the collection of the eye movement data and providing data support for subsequent analysis and processing. The processing device determines the cognitive screening index of the subject according to the eye movement data corresponding to each test task, and generates a screening recommendation result of the subject according to the cognitive screening index of the subject. The cognitive screening index comprises at least one of the test result accuracy data of the test task and the fixation time ratio of the region of interest in the test task, thereby realizing the cognitive impairment screening of the subject and improving the efficiency and accuracy of the cognitive impairment screening.

[0065] Embodiment two

[0066] The embodiment two of the present application provides a cognitive impairment screening system. The embodiment is a refinement of the above-mentioned embodiment, and the processing device is refined based on the foregoing embodiment, and the specific implementation can be referred to the technical scheme of the embodiment. The technical terms same as or corresponding to the above-mentioned embodiment are not described herein. The cognitive impairment screening system comprises an eye tracking instrument 110, a test end device 120, a subject end device 130 and a processing device 140. The test end device 120 generates a test procedure of a subject in response to a configuration operation of a tester, wherein the test procedure comprises at least one test task corresponding to a cognitive ability of each dimension. The subject end device 130 is configured with a first display device, which sequentially displays the test content corresponding to each test task in the test procedure. The eye tracking instrument 110 collects the eye movement data of the subject for each test task in the test process, and transmits the eye movement data to the processing device 140. The processing device 140 determines the cognitive screening index of the subject according to the eye movement data corresponding to each test task, and generates a screening recommendation result of the subject according to the cognitive screening index of the subject. The cognitive screening index comprises at least one of the test result accuracy data of the test task and the fixation time ratio of the region of interest in the test task. The processing device 140 is configured with a cognitive paradigm library, which comprises a cognitive paradigm sub-library corresponding to a cognitive ability of each dimension. Any cognitive paradigm sub-library comprises an eye movement paradigm of different cognitive levels of a cognitive ability.

[0067] The cognitive paradigm library stores cognitive paradigms corresponding to cognitive abilities of different dimensions, and each cognitive paradigm sub-library includes eye movement paradigms of different cognitive levels of the cognitive ability. For the same cognitive ability, different cognitive levels correspond to an eye movement paradigm. Taking the cognitive domain of memory as an example, the cognitive domain of memory is divided into N levels, and each level of the cognitive domain of memory corresponds to a type of eye movement paradigm, and each type of eye movement paradigm includes multiple eye movement paradigms. According to the eye movement paradigms in the cognitive paradigm library, the cognitive impairment of the subject is screened.

[0068] For example, see Figure 4 , Figure 4 is a schematic diagram of a cognitive paradigm library interface provided by an embodiment of the present application. The cognitive paradigm library is built based on the Psychopy experiment engine and the Trolltech Qt framework, and includes cognitive paradigm sub-libraries corresponding to cognitive abilities of different dimensions. The cognitive paradigm sub-library can include different types of test tasks to meet the test screening of cognitive abilities of different dimensions. The test tasks include memory encoding, memory recall, image selection, image rule finding, number replacement task, and number addition and subtraction task. The interface includes a cognitive paradigm search control, in which the cognitive ability of the corresponding dimension can be input to match the corresponding cognitive paradigm. When any cognitive paradigm sub-library is selected, the cognitive paradigm sub-library is selected by an orange border, and the name and introduction of the test task corresponding to the cognitive paradigm sub-library are displayed in the interface to show the test task corresponding to the cognitive paradigm sub-library to the tester.

[0069] Optionally, the testing terminal device 120 is configured with a second display device, and the second display device displays an interactive page. The interactive page displays the identifiers of eye movement paradigms in cognitive paradigm sub-libraries corresponding to cognitive abilities of different dimensions, and the identifiers carry cognitive levels of the eye movement paradigms.

[0070] The identifier includes but is not limited to characters and colors. For example, the identifier of the eye movement paradigm can be a unique identifier (ID) of a preset length. In the unique ID of the eye movement paradigm, the characters at the preset position represent the cognitive level of the eye movement paradigm. For another example, different colors can be set to distinguish different cognitive levels.

[0071] Optionally, the testing terminal device 120 forms test tasks of eye movement paradigms corresponding to at least one dimension of cognitive ability through the configuration operation of the tester in the interactive page, sets a test order of the test tasks, and forms a test process.

[0072] The test order can be set according to the formation time of the test task. For example, the formation time of the test task is sorted from early to late, and the corresponding test task is executed in turn according to the formation time from early to late. The test order can also be set according to the experience of the tester, which is not limited here.

[0073] Specifically, the tester can perform a configuration operation in the interactive page of the test terminal device 120, form different test tasks corresponding to the eye movement paradigms of different dimensions of cognitive ability respectively, set the test order of the test tasks according to the formation time of the test tasks, form a test process, and the subject can execute the test task according to the test process, which improves the speed of forming the test process, and is conducive to improving the efficiency of cognitive impairment screening.

[0074] For example, the test process and the test task can also be automatically generated. The process of automatically generating the test process is as follows: determining the dimensions and cognitive levels of the eye movement paradigms according to the information of the subject, sorting the dimensions and cognitive levels of the eye movement paradigms, generating the corresponding test process according to the order of the eye movement paradigms, and generating the corresponding test task according to the corresponding eye movement paradigms, which realizes the automatic generation of the test process and the test task, and is conducive to improving the efficiency of cognitive impairment screening.

[0075] Optionally, the configuration operation includes a drag operation on the identifier of the eye movement paradigm.

[0076] In the interactive page of the test terminal device 120, the tester can drag the identifier of the eye movement paradigm, and drag the identifier of the eye movement paradigm to a preset position. By dragging the identifier of the eye movement paradigm, the generation time of the test process is reduced, which is conducive to shortening the screening time of cognitive impairment and improving the screening efficiency of cognitive impairment. For example, see Figure 5 , Figure 5 is a schematic diagram of an interactive page of a test terminal device provided by an embodiment of the application. The test terminal device includes an eye movement paradigm library and a test process generation interface. The eye movement paradigm library includes cognitive paradigm sub-libraries corresponding to memory, visual spatial ability, logical reasoning ability, executive ability, and attention, respectively. Each cognitive paradigm sub-library includes eye movement paradigms of three cognitive levels of corresponding cognitive ability, and different colors represent different cognitive levels. The tester drags the identifier of the eye movement paradigm to the test process generation interface through a drag operation, and the test process generation interface can generate corresponding test content and test tasks according to the identifier.

[0077] For example, see Figure 6 , Figure 6This is a schematic diagram of a test flow editing interface provided in an embodiment of the present invention. The editing interface includes an eye-tracking paradigm selection area, an eye-tracking paradigm editing area, an eye-tracking paradigm introduction area, and a control area. The eye-tracking paradigm selection area includes icons for different eye-tracking paradigms. The test administrator can drag these icons from the selection area to the editing area as needed. In response to the test administrator selecting an icon for an eye-tracking paradigm in the editing area, the introduction area displays the name and brief description of the corresponding paradigm. The control area includes left-shift, right-shift, delete, confirm, and cancel controls. Users can manipulate the icons for different eye-tracking paradigms in the editing area using these controls. The test administrator can adjust the testing order of the icons for different eye-tracking paradigms as needed. Eye-tracking paradigms corresponding to different dimensions of cognitive ability form a test flow based on the order of the icons. This modular operation lowers the barrier to entry for test administrators, improves the efficiency of test flow formation, and better meets the diverse needs of cognitive impairment screening.

[0078] This embodiment provides a cognitive impairment screening system, comprising an eye tracker, a testing device, a subject device, and a processing device. The testing device, responding to the operator's configuration, generates a testing flow for the subject. This flow includes testing tasks corresponding to at least one dimension of cognitive ability, providing process support for the assessment of the subject's cognitive impairment. The subject device is equipped with a first display device, which sequentially visualizes the test content corresponding to each test task in the testing flow, allowing the subject to complete the corresponding test tasks. During the eye tracker's data acquisition process, the subject transmits the eye movement data for each test task to the processing device, thus acquiring the eye movement data for subsequent analysis and processing. The system provides data support; the processing device determines cognitive screening indicators for subjects based on eye movement data corresponding to each test task, and generates screening recommendation results for subjects based on these indicators. The cognitive screening indicators include at least one of the accuracy data of the test results and the fixation time ratio of the region of interest in the test task, thus enabling cognitive impairment screening for subjects. The processing device is equipped with a cognitive paradigm library, which includes sub-libraries of cognitive paradigms corresponding to multi-dimensional cognitive abilities. Each sub-library includes eye movement paradigms for different cognitive levels of a cognitive ability. Based on the eye movement paradigms in the cognitive paradigm library, subjects are screened for cognitive impairment, solving the problems of low accuracy and low efficiency in existing cognitive impairment screening technologies, and improving the efficiency and accuracy of cognitive impairment screening.

[0079] Example 3

[0080] Figure 7is a schematic diagram of an interface of a first display device in a subject terminal device provided by embodiment three of the present application. Wherein the first display device of the subject terminal device displays test content corresponding to test task 1, and the test content includes n regions of interest, and the region of interest 2 corresponding to the red frame indicates the fixation region of interest of the subject. This embodiment is a refinement of the above-mentioned embodiment, and on the basis of the foregoing embodiment, the subject terminal device is refined and described in detail, and the specific implementation can be referred to the technical solution of this embodiment. Wherein, the same or corresponding technical terms as the above-mentioned embodiments are not repeated here. The cognitive impairment screening system provided by the embodiment of the present application comprises: an eye tracking instrument 210, a test terminal device 220, a subject terminal device 230 and a processing device 240; wherein the test terminal device 220 generates the test procedure of the subject in response to the configuration operation of the tester, wherein the test procedure includes at least one test task corresponding to the cognitive ability of each dimension; the subject terminal device 230 is configured with a first display device, and the test content corresponding to each test task in the test procedure is visually displayed in turn through the first display device; the eye tracking instrument 210 collects the eye movement data of the subject for each test task in the test process, and transmits the eye movement data to the processing device 240; the processing device 240 determines the cognitive screening index of the subject according to the eye movement data corresponding to each test task, and generates the screening recommendation result of the subject according to the cognitive screening index of the subject; the cognitive screening index includes at least one of the test result accuracy data of the test task and the fixation time ratio of the region of interest in the test task; the subject terminal device 230 displays the test content of each test task through the first display device, and the test content includes a plurality of regions of interest; the processing device 240 determines the fixation region of interest of the subject according to the eye movement data of the subject in the test task display process, and transmits the information of the fixation region of interest of the subject to the subject terminal device 230; the subject terminal device 230 adjusts the rendering attribute of the fixation region of interest to distinguish and display the fixation region of interest through the first display device.

[0081] The region of interest (ROI) is a region predefined in the test content and is a target region in a visual scene. For example, the region of interest includes, but is not limited to, a preset part and a preset text content in a picture. Optionally, the multiple regions of interest in the test content include an answer item and a distractor. The answer item is a correct content in the test content that meets the requirements of the question, and is used to determine whether the response of the subject is correct. The distractor is a content in the test content that is similar to the answer item but does not meet the requirements, and is used to increase the difficulty of the task and interfere with the judgment of the subject. The gazed region of interest is a region actually gazed by the subject during the execution of the test task, and is used to directly reflect the allocation of the visual attention of the subject. Different test tasks can include different test content, and the same test content can include multiple regions of interest. The rendering attribute is a parameter of the gazed region of interest, and the rendering attribute includes one or more of color and brightness.

[0082] Specifically, the subject terminal device 230 displays the multiple regions of interest of the test content in each test task through the first display device, the eye tracking instrument 210 collects eye movement data during the execution of the test task by the subject, the eye tracking instrument 210 transmits the collected eye movement data to the processing device 240 through the USB interface, the processing device 240 receives the transmitted eye movement data, and determines the gazed region of interest of the subject according to the eye movement data. The processing device 240 transmits the information of the gazed region of interest of the subject to the subject terminal device 230 through communication. The subject terminal device 230 can adjust the color of the gazed region of interest, and display the gazed region of interest after the color adjustment through the first display device, so as to distinguish the gazed region of interest from the region of interest.

[0083] Optionally, the processing device 240 generates accuracy data of the test task according to the gazed region of interest, and obtains test result accuracy data according to the accuracy data of the multiple test tasks respectively corresponding to the test flow.

[0084] Specifically, the processing device 240 calculates the score of the test task by judging whether the gazed region of interest is the region of interest, and obtains the test result accuracy data by summing or weighted summing the scores of the multiple test tasks respectively corresponding to the test tasks, so as to realize the accurate determination of the test result accuracy data.

[0085] Optionally, the processing device 240 determines the gazed time ratio of the region of interest corresponding to the test task according to the gazed time of the multiple regions of interest in the test content of the test task respectively.

[0086] Specifically, the processing device 240 can obtain the gaze time ratio of each region of interest according to the proportion between the gaze and the time corresponding to the completion of the test of each region of interest, and the calculation of the gaze time ratio provides data support for subsequent analysis and processing.

[0087] Optionally, the processing device 240 generates accuracy data of the test task according to the gaze on the region of interest, and obtains test result accuracy data according to the accuracy data corresponding to each of the plurality of test tasks in the test process, and determines the gaze time ratio of the region of interest corresponding to the test task according to the gaze time of each region of interest in the test content of the test task.

[0088] Exemplarily, referring to Figure 8 , Figure 8 is a platform architecture diagram of a cognitive impairment screening system provided by an embodiment of the application. As shown in Figure 8 , the cognitive impairment screening system includes a presentation layer, a service layer, a business application layer, a data storage layer and an infrastructure layer. The presentation layer includes a subject end interface, a tester end interface and a server end interface. The service layer includes an eye movement data interface, a call audio device, a driving eye movement interaction device, a real-time visualization gaze point, an eye movement index collection and a system task score calculation. The business application layer includes a cognitive impairment paradigm library deployment, a test process editing, an eye movement device registration and calibration, a start test entry and an experiment record and analysis. The data storage layer includes a voice library, an eye movement database, a user information library and a cognitive paradigm library, the voice library includes task instructions and corresponding voice and task switching prompt sound, the eye movement database includes ROI region gaze ratio, ROI region gaze time, pupil diameter and time stamp, the user information library includes subject general information and subject clinical history, and the cognitive paradigm library includes memory (recall), image selection, image rule finding, memory (encoding), number replacement and number addition and subtraction. The infrastructure layer includes an eye movement interaction device, a PC end operating system and a network infrastructure. The system security system and the permission control run through the presentation layer, the service layer, the business application layer, the data storage layer and the infrastructure layer.

[0089] Exemplarily, referring to Figure 9 , Figure 9 is a swim lane diagram of a cognitive impairment screening system provided by an embodiment of the application. As shown in Figure 9As shown, according to the lane diagram, it can be divided into tester side, subject side and system side. The tester side includes preparation phase, calibration phase, task execution phase, exception handling phase and data export phase; wherein, the preparation phase includes deploying task paradigm, editing test process, saving configuration file, connecting eye movement interaction device and selecting test process; the calibration phase includes inputting subject information, viewing calibration result and saving user calibration data; the task execution phase includes monitoring the task execution; the exception handling phase includes intervention checking exception and selecting to continue or restart; the data export phase includes exporting data. The subject side includes calibration phase and task execution phase; wherein, the calibration phase includes sitting and adjusting sitting posture and performing eye movement calibration according to instructions until the eye movement calibration is completed; the task execution phase includes starting to execute screening task, understanding task description, example question operation training and performing eye movement interaction task until the task execution is completed. The system side includes preparation phase, calibration phase, task execution phase, exception handling phase and data export phase; wherein, the preparation phase includes loading task configuration according to configuration file and generating process file; the calibration phase includes generating personal archive according to subject information, starting dynamic five-point calibration, detecting whether the drift rate is less than or equal to 5% and storing user eye movement calibration data when the calibration is normal; the task execution phase includes task paradigm module running, voice description module running, real-time floating box feedback and recording task data and eye movement data when the task execution is completed; the exception handling phase includes starting prompt sound and pausing, and selecting to continue or restart to resume the process; the data export phase includes packaging CSV file according to export data and transmitting to storage path.

[0090] For example, see Figure 10 , Figure 10is a schematic diagram of an eye movement calibration interface provided by an embodiment of the present application. The interface includes a head position display area, a setting area, and an eye movement calibration area. The head position display area includes a preset position, and a head image of a subject is filled into the preset position. When the color of the preset position changes to green, the sitting posture calibration is completed. The setting area includes a calibration mode control, a calibration point number selection control, and a preview area. The calibration mode includes a binocular mode, a left eye mode, and a right eye mode, and an examiner can select a corresponding calibration mode by operating a corresponding control. The calibration point number includes 2, 5, and 9, and an examiner can select a corresponding calibration point number according to a requirement by operating a corresponding control. The preview area includes a color selection control, and the preview area displays a position schematic diagram of a corresponding number of calibration points. The eye movement calibration area is used to display eye movement data collected in an eye movement calibration process. Before cognitive impairment screening, an examiner performs sitting posture calibration and eye movement data calibration on each subject to ensure the accuracy of the eye movement data. In the eye movement calibration process, the subject sits at a position 60 centimeters away from an eye movement tracker, and the head of the subject is not fixed. The examiner adjusts the angle of the eye movement tracker so that the eye movement tracker can detect the eyes of the subject, and at the same time, the subject adjusts the sitting posture so that the head image of the subject is filled into the preset position in the head position display area. When the color of the preset position in the head position display area changes to green, it indicates that the subject completes the sitting posture calibration. The eye movement data calibration adopts a five-point calibration method, and a processing device stores historical eye movement data of multiple subjects. By using the historical eye movement data of the subject to adaptively compensate for the currently collected eye movement data, it is beneficial to reduce the tracking error caused by the micro-motion of the head of the subject. In the eye movement data calibration process, the processing device calculates the fixation point drift rate. When the fixation point drift rate is greater than 5%, the processing device triggers automatic re-eye movement data calibration, which is beneficial to improve the accuracy of the eye movement data.

[0091] For example, see Figure 11 , Figure 11This is a schematic diagram of a quick access interface for a cognitive impairment screening system provided in an embodiment of the present invention. The quick access interface includes a paradigm library control, a test procedure editing control, a start test control, and a test record and analysis control, wherein the test procedure is the test procedure of the present invention. On this page, the test administrator navigates to the interface corresponding to the cognitive paradigm library by operating the paradigm library control; navigates to the test procedure editing interface by operating the test procedure editing control; navigates to the page corresponding to the test task by operating the start test control; and navigates to the test record and analysis interface by operating the test record and analysis control. The test record and analysis interface includes information about different subjects, including subject information, test date, start time, and score. The test record and analysis interface also includes an export data control, which allows the test administrator to export the subject's information for subsequent analysis and processing. For example, see [link to example]. Figure 12 , Figure 12 This is a schematic diagram of an experimental recording and analysis interface provided in an embodiment of the present invention.

[0092] The technical solution of this embodiment provides a cognitive impairment screening system, which includes an eye tracker, a testing device, a subject device, and a processing device. The testing device, responding to the operator's configuration, generates a testing process for the subject. This process includes testing tasks corresponding to at least one dimension of cognitive ability, providing process support for the assessment of the subject's cognitive impairment. The subject device is equipped with a first display device, which sequentially visualizes the test content corresponding to each test task in the testing process, allowing the subject to complete the corresponding test tasks. During the eye tracker's testing process, the subject transmits eye movement data for each test task to the processing device, achieving eye movement data acquisition and providing data support for subsequent analysis and processing. The processing device... For eye-tracking data corresponding to each test task, cognitive screening indicators for the subjects are determined, and screening recommendation results for the subjects are generated based on the subjects' cognitive screening indicators. The cognitive screening indicators include at least one of the accuracy data of the test results of the test task and the fixation time ratio of the region of interest in the test task, thereby realizing the screening of cognitive impairment in the subjects. The test device displays the test content of each test task through a first display device, and the test content includes multiple regions of interest. The processing device determines the subject's fixation region of interest based on the subject's eye-tracking data during the display of the test task, and transmits the information of the subject's fixation region of interest to the test device. The test device adjusts the rendering attributes of the fixation region of interest to differentiate the fixation region of interest through the first display device, so as to distinguish the fixation region of interest from the region of interest.

[0093] Example 4

[0094] Figure 13 This is a schematic diagram of the structure of an electronic device provided in Embodiment 4 of the present invention. The electronic device 10 is intended to represent various forms of digital computers, such as laptop computers, desktop computers, workstations, personal digital assistants, servers, blade servers, mainframe computers, and other suitable computers. The electronic device may also represent various forms of mobile devices, such as personal digital processors, cellular phones, smartphones, wearable devices (such as helmets, glasses, watches, etc.), and other similar computing devices. The components shown herein, their connections and relationships, and their functions are merely illustrative and are not intended to limit the implementation of the invention described and / or claimed herein.

[0095] like Figure 6 As shown, the electronic device 10 includes at least one processor 11 and a memory, such as a read-only memory (ROM) 12 or a random access memory (RAM) 13, communicatively connected to the at least one processor 11. The memory stores computer programs executable by the at least one processor. The processor 11 can perform various appropriate actions and processes based on the computer program stored in the ROM 12 or loaded from storage unit 18 into the RAM 13. The RAM 13 may also store various programs and data required for the operation of the electronic device 10. The processor 11, ROM 12, and RAM 13 are interconnected via a bus 14. An input / output (I / O) interface 15 is also connected to the bus 14.

[0096] Multiple components in electronic device 10 are connected to I / O interface 15, including: input unit 16, such as keyboard, mouse, etc.; output unit 17, such as various types of displays, speakers, etc.; storage unit 18, such as disk, optical disk, etc.; and communication unit 19, such as network card, modem, wireless transceiver, etc. Communication unit 19 allows electronic device 10 to exchange information / data with other devices through computer networks such as the Internet and / or various telecommunications networks.

[0097] The processor 11 can be various general and / or special-purpose processing components with processing and computing capabilities. Some examples of the processor 11 include, but are not limited to, a central processing unit (CPU), a graphics processing unit (GPU), various special-purpose artificial intelligence (AI) computing chips, various processors running machine learning model algorithms, a digital signal processor (DSP), and any appropriate processor, controller, microcontroller, etc. The processor 11 performs a process of sequentially presenting test content corresponding to each test task in a test procedure to a subject, the test procedure including test tasks corresponding to at least one dimension of cognitive ability respectively, obtaining eye movement data of the subject for each test task, determining a cognitive screening index of the subject according to the eye movement data corresponding to each test task, and generating a screening recommendation result of the subject according to the cognitive screening index of the subject. The cognitive screening index includes at least one of test result accuracy data of the test task and a fixation time ratio of a region of interest in the test task.

[0098] In some embodiments, the above process can be implemented as a computer program tangibly embodied in a computer readable storage medium, such as the storage unit 18. In some embodiments, part or all of the computer program can be loaded and / or installed onto the electronic device 10 via the read-only memory (ROM) 12 and / or the communication unit 19. When the computer program is loaded onto the random access memory (RAM) 13 and executed by the processor 11, one or more steps of the process described above can be performed. Alternatively, in other embodiments, the processor 11 can be configured to perform a process of sequentially presenting test content corresponding to each test task in a test procedure to a subject, the test procedure including test tasks corresponding to at least one dimension of cognitive ability respectively, obtaining eye movement data of the subject for each test task, determining a cognitive screening index of the subject according to the eye movement data corresponding to each test task, and generating a screening recommendation result of the subject according to the cognitive screening index of the subject by any other appropriate means (e.g., by means of firmware).

[0099] Various implementations of the systems and techniques described above can be realized in digital electronic circuitry, integrated circuitry, a field programmable gate array (FPGA), an application specific integrated circuit (ASIC), a system on a chip (SOC), a complex programmable logic device (CPLD), computer hardware, firmware, software, and / or combinations thereof. These various implementations can include implementation in one or more computer programs that are executable and / or interpretable on a programmable system including at least one programmable processor, which can be special or general purpose, coupled to receive data and instructions from, and to transmit data and instructions to, a storage system, at least one input device, and at least one output device.

[0100] Computer programs implementing the above-described processes for carrying out the present application can be written in any combination of one or more programming languages. These computer programs can be provided to a processor of a general purpose computer, special purpose computer, or other programmable data processing apparatus to produce a machine, such that the computer program, when executed, implements the functions / acts specified in the flowcharts and / or block diagrams.

[0101] Embodiment Five

[0102] Embodiment five of the present application also provides a computer readable storage medium, the computer readable storage medium stores computer instructions, the computer instructions are used to make the processor execute the following process: sequentially displaying test content corresponding to each test task in a test flow to a subject, the test flow includes at least one test task corresponding to a respective dimension cognitive ability; obtaining eye movement data of the subject for each test task, determining a cognitive screening index of the subject according to the eye movement data corresponding to each test task, and generating a screening recommendation result of the subject according to the cognitive screening index of the subject; the cognitive screening index includes at least one of test result accuracy data of the test task and fixation time ratio of a region of interest in the test task.

[0103] In the context of the present application, a computer-readable storage medium can be a tangible medium that can contain or store a computer program for use by or in connection with an instruction execution system, apparatus, or device. A computer-readable storage medium can include, but is not limited to, an electronic, magnetic, optical, electromagnetic, infrared, or semiconductor system, apparatus, or device, or any suitable combination of the foregoing. Alternatively, a computer-readable storage medium can be a machine-readable signal medium. More specific examples of a machine-readable storage medium will include one or more lines of a program of instructions in a transitory signal, a portable computer diskette, a hard disk, a random access memory (RAM), a read-only memory (ROM), an erasable programmable read-only memory (EPROM or Flash memory), an optical fiber, a portable compact disc read-only memory (CD-ROM), an optical storage device, a magnetic storage device, or any suitable combination of the foregoing.

[0104] To provide for interaction with a user, the systems and techniques described here can be implemented on an electronic device having a display device (e.g., a CRT (cathode ray tube) or LCD (liquid crystal display) monitor) for displaying information to the user and a keyboard and a pointing device (e.g., a mouse or a trackball) by which the user can provide input to the electronic device. Other kinds of devices can be used to provide for interaction with a user as well; for example, feedback provided to the user can be any form of sensory feedback (e.g., visual feedback, auditory feedback, or tactile feedback); and input from the user can be received in any form, including acoustic, speech, or tactile input.

[0105] The systems and techniques described here can be implemented in a computing system that includes a back end component (e.g., as a data server), or that includes a middleware component (e.g., an application server), or that includes a front end component (e.g., a user computer having a graphical user interface or a Web browser through which a user can interact with an implementation of the systems and techniques described here), or any combination of such back end, middleware, or front end components. The components of the system can be interconnected by any form or medium of digital data communication (e.g., a communication network). Examples of communication networks include a local area network (LAN), a wide area network (WAN), a blockchain network, and the Internet.

[0106] The computing system can include clients and servers. A client and server are generally remote from each other and typically interact through a communication network. The relationship of client and server arises by virtue of computer programs running on the respective computers and having a client-server relationship to each other. The server can be a cloud server, also known as a cloud computing server or cloud host, which is a host product in the cloud computing service system, to solve the defects of large management difficulty and weak business scalability in traditional physical host and VPS service.

[0107] It should be understood that the various forms of flow shown above can be used to reorder, add or delete steps. For example, each step described in the present application can be executed in parallel, sequentially or in a different order, as long as the desired results of the technical solutions of the present application can be achieved, which is not limited herein.

[0108] The above detailed description does not constitute a limitation on the protection scope of the present application. Those skilled in the art should understand that various modifications, combinations, sub-combinations and substitutions can be made according to design requirements and other factors. Any modifications, equivalent replacements and improvements made within the spirit and principles of the present application shall be included in the protection scope of the present application.

Claims

1. A cognitive impairment screening system, characterized in that, include: Eye tracker, administration device, subject device, and processing device; among which, The testing device responds to the configuration operation of the tester and generates a test process for the subject, wherein the test process includes test tasks corresponding to at least one dimension of cognitive ability. The test device is equipped with a first display device, through which the test content corresponding to each test task in the test process is displayed in a visual manner in sequence. During the eye-tracking test, the subject transmits the eye-tracking data for each test task to the processing device. The processing device determines the cognitive screening index of the subject based on the eye movement data corresponding to each test task, and generates the screening recommendation result of the subject based on the cognitive screening index; the cognitive screening index includes at least one of the test result accuracy data of the test task and the fixation time ratio of the region of interest in the test task.

2. The cognitive impairment screening system according to claim 1, characterized in that, The processing device is equipped with a cognitive paradigm library, which includes cognitive paradigm sub-libraries corresponding to multi-dimensional cognitive abilities. Each cognitive paradigm sub-library includes eye-tracking paradigms for different cognitive levels of a cognitive ability. The at least one dimension of cognitive ability includes at least one of cognitive domain memory, visuospatial ability, logical reasoning ability, executive ability, and attention.

3. The cognitive impairment screening system according to claim 2, characterized in that, The testing device is equipped with a second display device, which displays an interactive page. The interactive page displays the identifiers of the eye-tracking paradigms in the cognitive paradigm sub-library corresponding to the multi-dimensional cognitive abilities, and the identifiers carry the cognitive level of the eye-tracking paradigm. The testing device, through the user's configuration operation on the interactive page, forms test tasks for eye-tracking paradigms corresponding to at least one dimension of cognitive ability, and sets the test order of the test tasks to form a test process; wherein, the configuration operation includes dragging the identifier of the eye-tracking paradigm.

4. The cognitive impairment screening system according to claim 1, characterized in that, The test device displays the test content of each test task through the first display device, and the test content includes multiple regions of interest. The processing device determines the subject's gaze region of interest based on the subject's eye movement data during the test task display, and transmits the information of the subject's gaze region of interest to the test subject's terminal device; The test device adjusts the rendering attributes of the gaze region of interest to differentiate the gaze region of interest through the first display device.

5. The cognitive impairment screening system according to claim 4, characterized in that, The test content includes multiple regions of interest, including answer items and distractors. The processing device generates accuracy data for the test task based on the gaze region of interest, and obtains the accuracy data for the test result based on the accuracy data corresponding to multiple test tasks in the test process. And / or, the processing device determines the fixation time ratio of the regions of interest corresponding to the test task based on the fixation time corresponding to the multiple regions of interest in the test content of the test task.

6. The cognitive impairment screening system according to claim 1, characterized in that, The test device is also used to: play prompt voice during the display of the test task, the prompt voice including task description voice and encouraging feedback voice.

7. The cognitive impairment screening system according to claim 6, characterized in that, The test-end device is also used to: set the volume and / or speech rate of the prompting voice according to the subject's set type attribute value; Alternatively, before performing the test task, a volume and speech rate test can be performed to obtain the volume and / or speech rate of the prompt voice.

8. The cognitive impairment screening system according to claim 1, characterized in that, The subject-end device is also used to: dynamically calibrate the subject before performing the test task.

9. An electronic device, characterized in that, The electronic device includes: At least one processor; and A memory communicatively connected to the at least one processor; wherein, The memory stores a computer program that can be executed by the at least one processor, the computer program being executed by the at least one processor to enable the at least one processor to perform the following processing procedure: The test content corresponding to each test task in the test process is shown to the test subjects in sequence. The test process includes test tasks corresponding to at least one dimension of cognitive ability. The eye movement data of the subject for each test task is acquired. Based on the eye movement data corresponding to each test task, the cognitive screening index of the subject is determined. The screening recommendation result of the subject is generated based on the cognitive screening index. The cognitive screening index includes at least one of the test result accuracy data of the test task and the fixation time ratio of the region of interest in the test task.

10. A computer-readable storage medium, characterized in that, The computer-readable storage medium stores computer instructions that cause a processor to perform the following processing steps: The test content corresponding to each test task in the test process is shown to the test subjects in sequence. The test process includes test tasks corresponding to at least one dimension of cognitive ability. Obtain the eye movement data of the subject for each test task, determine the cognitive screening index of the subject based on the eye movement data corresponding to each test task, and generate the screening recommendation result of the subject based on the cognitive screening index of the subject; The cognitive screening indicators include at least one of the accuracy data of the test results of the test task and the fixation time ratio of the region of interest in the test task.

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