CN116250806A

CN116250806A - Near infrared brain function imaging system

Info

Publication number: CN116250806A
Application number: CN202310163855.5A
Authority: CN
Inventors: 汪待发; 汪恭正; 邓皓
Original assignee: Danyang Huichuang Medical Equipment Co ltd
Current assignee: Danyang Huichuang Medical Equipment Co ltd
Priority date: 2023-02-24
Filing date: 2023-02-24
Publication date: 2023-06-13

Abstract

The application provides a near infrared brain function imaging system, including operator terminal, the operator terminal is configured to: providing a first menu item comprising a plurality of brain function analysis tasks, each brain function analysis task belonging to a topic of a different psychological paradigm; receiving a first operation of selecting a target brain function analysis task in a first menu item by an operator; in response to the first operation, an operator configuration interface corresponding to the target brain function analysis task is presented, the operator configuration interface configured to provide a second menu item of selectable task subclasses of the target brain function analysis task for the operator to select task subclasses, and to provide settings according to the target brain function analysis task selected by the operator. The near-infrared brain function imaging system can provide an efficient and friendly interactive interface for an operator, improves the configuration efficiency of the operator, and enables the operator to flexibly configure subdivision categories of a psychological paradigm.

Description

Near infrared brain function imaging system

Technical Field

The application relates to the technical field of near-infrared brain function imaging, in particular to a near-infrared brain function imaging system.

Background

Currently, functional near infrared spectroscopy (fNIRS) is a non-invasive brain function imaging technique that has emerged in recent years. The fNIRS mainly utilizes the difference characteristic of the absorption rate of the near infrared light of different wavelengths of oxyhemoglobin and deoxyhemoglobin in brain tissues to directly detect the hemodynamic activity of the cerebral cortex in real time. By observing such hemodynamic changes, the neuro-activity of the brain can be reversed by neurovascular coupling laws. In recent years, fNIRS has been increasingly used in research in the field of cognitive neuroscience. The technology can be used for safely, noninvasively and low-cost monitoring and detection of the functional activities of different areas of the cerebral cortex.

The subject performs tasks according to a psychological paradigm (such as VFT), and acquires near infrared data during the execution of the paradigm using a near infrared brain functional imaging system to observe changes in concentration of hemoglobin at different locations of the brain for assessment and diagnosis of various diseases.

Before the near-infrared brain imaging system is started to acquire near-infrared data, corresponding configuration is required to be carried out on the near-infrared brain imaging system according to the problem of the psychological paradigm. The operator is presented in the prior art with a longer drop-down menu followed by the psychological norms and refined branch configuration items of the psychological norms, for example, the drop-down menu includes a VFT task (Verbal Fluency Test; language fluency test) and a GO-NOGO task (a reaction suppression task), and further includes refined branch configuration items of the VFT, such as a VFT-category, a VFT-phoneme, and a VFT-text, wherein each refined branch configuration item may further include a plurality of sub-configuration items, for example, the VFT-text may provide tens of chinese characters for selection by a doctor. Because of the high number of fine categories of individual psychological scales, the display configuration based on such a long drop-down menu cannot be estimated and exhausted in advance of the various possible configurations. If all the fine categories of the individual psychological paradigms are listed in the drop-down menu, the difficulty of the operator in configuring the drop-down menu increases, so that the operator cannot quickly determine the psychological paradigm or the fine branch configuration item of the psychological paradigm to be selected in the longer drop-down menu.

Disclosure of Invention

Aiming at the technical problems in the prior art, the application provides a near-infrared brain function imaging system which can provide an efficient and friendly interactive interface for an operator, improve the configuration efficiency of the operator and enable the operator to flexibly configure subdivision categories of a psychological paradigm.

The embodiment provides a near infrared brain function imaging system, which comprises an operator terminal configured to execute steps S101 to S103. Step S101: a first menu item including a plurality of brain function analysis tasks is provided, each brain function analysis task belonging to a subject of a different psychological paradigm. Step S102: a first operation of the operator selecting a target brain function analysis task in the first menu item is received. Step S103: in response to the first operation, an operator configuration interface corresponding to the target brain function analysis task is presented, the operator configuration interface configured to provide a second menu item of selectable task subclasses of the target brain function analysis task for an operator to select task subclasses, and to provide a setting item according to the target brain function analysis task selected by the operator for the operator to set subject configuration information associated with the selected target brain function analysis task.

Compared with the prior art, the beneficial effects of the embodiment of the application are that: according to the method and the device, the first operation of selecting the target brain function analysis task from the first menu items by an operator is received, wherein each brain function analysis task belongs to the problems of different psychological norms, an operator configuration interface is presented based on the first operation, the operator configuration interface provides a second menu item of selectable task subclasses of the target brain function analysis task, the operator can select the task subclasses in the second menu item on the operator configuration interface, the task subclasses of the target brain function analysis task cannot be listed one by one in the first menu item, the problem that the first menu item is long and difficult to quickly configure due to the fact that the first menu item displays the target brain function analysis task and the task subclasses of the target brain function analysis task in the prior art is solved, and the technical scheme of the method and the device enable the operator to flexibly configure the task subclasses and the setting items on the operator configuration interface according to the conditions of a testee, so that the efficient and friendly interaction interface is provided for the operator.

Drawings

In the drawings, which are not necessarily drawn to scale, the same appendix may describe similar components in different views. The same adjective with a letter suffix or a different letter suffix may refer to different instances of like components. The accompanying drawings illustrate various embodiments by way of example in general and not by way of limitation, and together with the description and claims serve to explain the disclosed embodiments. Wherever appropriate, the same reference numbers will be used throughout the drawings to refer to the same or like parts. Such embodiments are illustrative and not intended to be exhaustive or exclusive of the present apparatus or method.

FIG. 1 is a schematic view of a use scenario of a near infrared brain function imaging system according to an embodiment of the present application;

FIG. 2 is a block diagram of a near infrared brain function imaging system according to an embodiment of the present application;

fig. 3 is a schematic diagram of a near infrared signal acquisition device according to an embodiment of the present application;

FIG. 4 is a flow chart corresponding to an operator terminal of a near infrared brain function imaging system according to an embodiment of the present application;

FIG. 5 is a schematic illustration of an interface of an operator terminal of a near infrared brain function imaging system according to an embodiment of the present application;

FIG. 6 is a schematic illustration of an interface of an operator terminal of a near infrared brain function imaging system according to an embodiment of the present application;

fig. 7 is a schematic diagram of an interface of an operator terminal of a three near infrared brain function imaging system according to an embodiment of the present application.

Detailed Description

Various aspects and features of the present application are described herein with reference to the accompanying drawings.

It should be understood that various modifications may be made to the embodiments of the invention herein. Therefore, the above description should not be taken as limiting, but merely as exemplification of the embodiments. Other modifications within the scope and spirit of this application will occur to those skilled in the art.

The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments of the application and, together with a general description of the application given above and the detailed description of the embodiments given below, serve to explain the principles of the application.

These and other characteristics of the present application will become apparent from the following description of a preferred form of embodiment, given as a non-limiting example, with reference to the accompanying drawings.

It is also to be understood that, although the present application has been described with reference to some specific examples, those skilled in the art can certainly realize many other equivalent forms of the present application.

The foregoing and other aspects, features, and advantages of the present application will become more apparent in light of the following detailed description when taken in conjunction with the accompanying drawings.

Specific embodiments of the present application will be described hereinafter with reference to the accompanying drawings; however, it is to be understood that the embodiments of the invention are merely examples of the application, which may be practiced in various ways. Well-known and/or repeated functions and constructions are not described in detail to avoid obscuring the application with unnecessary or excessive detail. Therefore, specific structural and functional details disclosed herein are not intended to be limiting, but merely as a basis for the claims and as a representative basis for teaching one skilled in the art to variously employ the present application in virtually any appropriately detailed structure.

The specification may use the word "in one embodiment," "in another embodiment," "in yet another embodiment," or "in other embodiments," which may each refer to one or more of the same or different embodiments as per the application.

The embodiment of the application provides a near infrared brain function imaging system. Fig. 1 shows a schematic diagram of a near infrared brain function imaging system according to an embodiment of the present application. The operator terminal 101 of the various embodiments of the present application is shown as the operator-side terminal. The near infrared brain function imaging system may further include a subject terminal 100, the subject terminal 100 representing a terminal on the side of the subject as a brain function condition evaluation object. Both the operator terminal 101 and the subject terminal 100 may be adapted for use in a near infrared brain function imaging system as shown in fig. 1.

As shown in fig. 2, the near infrared brain function imaging system may further include a near infrared data acquisition device 102. As shown in fig. 3, the near infrared data collection device 102 has at least a headgear 103, the headgear 103 being for wearing on a subject's head 105. For example, the headgear 103 may have a plurality of probes 104 for transmitting near infrared light and/or receiving near infrared light. For another example, the headgear 103 may be provided with a plurality of mounting locations for detachably mounting the respective probes 104, and in use, the probes 104 may be mounted to the headgear 103 by the mounting locations. Wherein each of the plurality of probes 104 may be configured as either a transmitting probe (S) or a receiving probe (D), each pair of paired probes 104 forming a channel. In some embodiments, one transmitting probe may correspond to multiple receiving probes, or vice versa, with a pairing relationship corresponding to the specific requirements of the probe 104 layout location, brain function area to be detected, etc.

Specifically, the subject terminal 100 may be a tablet, a notebook, or the like. The operator terminal 101 is configured to receive a setting operation of configuration information of a VFT task by an operator. Before collecting near infrared data of a tested person in the process of executing the VFT task, an operator can perform setting operation in a configuration item of the operator terminal 101 according to the personal condition of the tested person and the requirement of the VFT task to be executed, so that the VFT task (execution flow) is provided based on the configuration item, the provided VFT task is more suitable for brain function assessment of the tested person, and the tested person can reflect real brain function conditions when executing the VFT task so as to obtain accurate and targeted near infrared data. The results of the brain function evaluation may include, but are not limited to, hbO distribution graphs, hbR distribution graphs, functional connection graphs, and the like, for example, which are useful for evaluating and diagnosing brain function conditions of a subject.

As shown in fig. 4, the operator terminal 101 is configured to perform steps S101 to S103.

Step S101: a first menu item 1 including a plurality of brain function analysis tasks is provided, each brain function analysis task belonging to a subject of a different psychological paradigm.

Specifically, the brain function analysis task belonging to a subject of a different psychological paradigm is presented in the first menu item 1, but a task subclass corresponding to the brain function analysis task is not presented. For example, the options corresponding to the VFT task are listed in the first menu item 1, but the task subclasses of the VFT task are not listed, and the task subclasses of the VFT task may include at least VFT-text, VFT-class and VFT-phoneme, and none of the task subclasses are presented in the first menu item 1, so that the problem that the task subclasses are listed in the first menu item 1 one by one and are inconvenient for the operator to configure is avoided, and the operator can select a required brain function analysis task in less contents.

Step S102: a first operation of the operator selecting a target brain function analysis task in the first menu item 1 is received.

Step S103: in response to the first operation, an operator configuration interface 2 corresponding to the target brain function analysis task is presented, the operator configuration interface 2 being configured to provide a second menu item 3 of selectable task subclasses of the target brain function analysis task for an operator to select task subclasses, and to provide a setting item 4 according to the target brain function analysis task selected by the operator for the operator to set subject configuration information associated with the selected target brain function analysis task.

In some alternative embodiments, the first menu item 1 may be displayed on the operator terminal configuration interface, and the presented operator configuration interface 2 may also be presented on the operator terminal configuration interface after receiving the first operation of the operator. In particular, in conjunction with fig. 5, fig. 5 shows a schematic diagram of an operator terminal configuration interface, where the operator configuration interface 2 is presented on the operator terminal configuration interface, and is not independent of other interfaces outside the operator terminal configuration interface, so that a user performs a first operation in the first menu item 1 on the operator terminal configuration interface, and performs a configuration operation on the operator configuration interface 2. Specifically, the operator configuration interface 2 may be presented on one side of the operator terminal configuration interface, such as the right side as shown in fig. 5, or may be provided at another location on the operator terminal configuration interface, which is not specifically limited in this application. In other embodiments, the operator configuration interface 2 may not be presented on the operator terminal configuration interface, and may be presented independently of other interfaces outside the operator terminal configuration interface when the operator needs to perform configuration.

Specifically, the first menu item 1 and the second menu item 3 may be configured as drop-down menus, and after the operator selects the drop-down menu, the operator may list the corresponding content in detail.

In particular, the second menu item 3 may be at least used for presenting task subclasses corresponding to the selected brain function analysis task, and it is understood that the second menu item 3 may be configured to change according to the change of the selected brain function analysis task, that is, the task subclasses corresponding to different brain function analysis tasks are different. Illustratively, as shown in FIG. 5, upon receiving a first operation by the operator selecting a VFT task in the first menu item 1, at least one of the VFT-words, the VFT-category, and the VFT-phoneme may be included in the second menu item 3 of the operator configuration interface 2 (the display interface of the task sub-category, which is shown by the operator selecting the VFT-word, is shown in FIG. 5). In this way, the operator can further determine the task content to be executed by the subject through selecting the task subclass in the second menu item 3, the problem of too many display task subclasses in the first menu bar does not occur, and the operator can quickly select the brain function analysis task to be determined from less information through setting the first menu item 1 and the second menu item 3 on the interface.

In particular, the above-described setting item 4 may be configured to present information determinable by an operator by way of selection, editing, or the like. The subject configuration information used by setting item 4 may include information associated with the selected brain function analysis task that changes as the selected brain function analysis task changes, such as the "language" shown in fig. 5-6 that corresponds to the VFT task; "speed" shown in FIG. 7 corresponding to GO-NOGO task; the subject configuration information may also include information related to the subject's own attributes, such as age, native language, ethnicity, dominant hand, etc., which are related to the subject itself without changing with the selected brain function analysis task.

According to the method and the device, the first operation of selecting the target brain function analysis task from the first menu item 1 by an operator is received, wherein each brain function analysis task belongs to the problems of different psychological norms, the operator configuration interface 2 is presented based on the first operation, the operator configuration interface 2 provides the second menu item 3 of the selectable task subclass of the target brain function analysis task, the operator can select the task subclass in the second menu item 3 on the operator configuration interface 2, the task subclass of the target brain function analysis task cannot be listed one by one in the first menu item 1, the problem that the first menu item 1 is long and difficult to rapidly configure due to the fact that the first menu item 1 displays the target brain function analysis task and the task subclass of the target brain function analysis task in the prior art is solved, and the technical scheme of the method and the device enable the operator to flexibly configure the task subclass and the setting item 4 on the operator configuration interface 2 according to the condition of a testee, and the aim of providing an efficient and friendly interaction interface for the operator is achieved.

In some embodiments, as shown in fig. 5 and 6, the target brain function analysis task selected by the operator is a VFT task, the second menu item 3 includes at least a task sub-item corresponding to the VFT task, the setting item 4 includes at least an object attribute item corresponding to the subject configuration information, and a task material item corresponding to the task sub-item; wherein the object attribute item includes at least one of language information and identity information related to the subject.

Therefore, aiming at the situation that the target brain function analysis task selected by the operator is the VFT task, the second menu item 3 can thoroughly list task sub-items corresponding to the VFT task in the second menu item 3 one by one, the user does not need to configure the task sub-items in the first menu item 1, and a more friendly operation interface is provided for the operator.

In particular, the task subclass items described above may be understood as being used to present various task subclasses corresponding to the VFT task, such as VFT-words, VFT-categories, and VFT-phonemes, among others. The task material items described above are understood to be capable of changing as a function of the selection of task sub-items. For example, as shown in fig. 5, when the operator selects the VFT-text in the task sub-category, the task material items may be presented with "white", "north", and "big", and the operator may select appropriate materials in the task material items for evaluating the subject, so as to be suitable for people with different educational and cultural backgrounds. By selecting the object attribute item and the task material item in the setting item 4, the adaptability to different testees is improved, and meanwhile, the flexibility of customizing configuration for different testees can be improved.

Because the education degrees of the testees are different, the daily high-frequency words are selected, so that the adaptability to different education groups can be improved, and the cognitive ability of the testees can be truly and effectively reflected. When facing rare words or daily low-frequency words, the testee easily reduces the attention of the testee, so that the testee evades the executive task, easily collides and dysphoria, reduces the matching degree of the testee, and on the other hand, for people with low education degree, the low-frequency words cannot reflect the actual cognitive ability of the testee, and the detection effect is poor. Thus, the operator can select the material adapted to the subject according to the education level of the subject in the task material item.

Specifically, as shown in fig. 6, the language information included in the object attribute item may include chinese, cantonese, tibetan, etc. so as to be suitable for people having different native languages. Specifically, the operator selects language information suitable for the native language of the testee on the operator terminal configuration interface, and the voice prompt sent by the operator terminal for reminding the testee of executing the VFT task is suitable for the selected language type, so that the doctor does not need to spend time to manually explain task content for the testee, the testee does not need to spend time to understand the task content, the detection time of each testee can be greatly shortened, and the task amount of the doctor is reduced. For example, when the operator selects cantonese on the operator terminal configuration interface, the voice prompt issued by the operator terminal is also cantonese.

Specifically, the above-mentioned identity information may include the ID, name, sex, date of birth, age, left and right hands, ethnicity, native language, and the like of the subject. On one hand, the information such as ID, name and the like can be used for uniquely confirming the identity information of the testee, and on the other hand, the personal condition information of the testee such as dominant hands, ethnicity and native language of the testee is recorded so as to facilitate the configuration of the executed brain function grouping tasks.

In some embodiments, as shown in fig. 7, the target brain function analysis task selected by the operator is a GO-NOGO task, the second menu item 3 includes at least a picture type item and a picture replacement speed item corresponding to the GO-NOGO task, and the setting item 4 includes at least an object attribute item corresponding to the subject configuration information; wherein the object property item includes at least identity information related to the subject.

In this way, aiming at the condition that the target brain function analysis task selected by the operator is the GO-NOGO task, the second menu item 3 can present the picture type item and the picture replacement speed item corresponding to the GO-NOGO task in detail, so that the operator can conveniently configure the picture type and the picture replacement speed corresponding to the GO-NOGO task in the second menu item 3, and a more friendly operation interface is provided for the operator in a targeted manner.

Specifically, the above-mentioned picture change speed item includes at least one of normal, fast, and slow, and the picture type item includes, but is not limited to, animals, graphics, and the like.

In some embodiments, as shown in fig. 5-7, the operator terminal 101 is further configured to:

providing an import item for importing historical data related to a subject, the historical data including at least object attribute information of the subject configuration information;

in response to a second operation of the import item by the operator, history data related to the subject is configured in the corresponding setting item 4 provided by the operator configuration interface 2.

Thus, the part of history data related to the subject can be directly imported into the corresponding setting items 4, the setting items 4 do not need to be filled one by an operator, and the operation convenience of the operator is improved.

Specifically, the above-mentioned introduction item may be presented on the operator configuration interface 2, after the operator selects the introduction item, a data management interface may be presented, the operator may input an ID uniquely corresponding to the subject on the data management interface, the history data corresponding to the subject may be determined by the ID, the operator may select a part of the history data to be configured into the corresponding setting item 4, and of course, a one-key introduction button may also be presented, and the operator may directly configure the part of the history data into the setting item 4 on the operator configuration interface 2 by selecting the one-key introduction button.

Illustratively, after the ID uniquely corresponding to the subject is input on the data management interface, the information of the name, sex, date of birth, age, left and right hands, ethnicity, native language, etc. of the subject can be directly configured into the setting item 4 on the operator configuration interface 2 without manual one-to-one configuration by the operator.

In some embodiments, the operator terminal 101 is further configured to:

providing an editing item (not shown in the figure) on the operator configuration interface 2;

in response to a third operation of the editing item by an operator, presenting an editing interface for selecting the setting item 4 and contents editable to the setting item 4;

based on the editing operation of the editing interface by the operator, the setting items 4 on the operator configuration interface 2 are adjusted.

In this way, the setting items 4 on the operator configuration interface 2 can be flexibly configured by an operator instead of being invariable, so that the information presented by the setting items 4 on the operator configuration interface 2 can be presented according to the needs of the operator, and the key information meeting the needs is kept on the operator configuration interface 2, thereby improving the flexibility of configuring the operator configuration interface 2.

Specifically, in the above editing interface, the operator can select at least part of the setting items 4 among the plurality of setting items 4 to be presented in the operator configuration interface 2, so that the setting items 4 not focused on by the operator are not displayed in the operator configuration interface 2. In the above editing interface, the operator can also edit the content of one or more setting items 4, for example, edit the setting item 4 corresponding to "birth date" into the setting item 4 of "birth year", so that the setting item 4 presented on the operator configuration interface 2 can be more adapted to the needs of the operator.

In some embodiments, the operator terminal 101 is further configured to:

receiving the adjustment operation of an operator on task materials in the configuration information of the testee based on the historical acquisition data included in the historical data;

and responding to the adjustment operation, and adjusting the task material to be different from the historical acquisition material in the historical acquisition data.

Therefore, the material configured by the non-inspector at present is prevented from being repeated with part or all of the materials in the historical data, so that the inspector cannot be influenced by the materials which are already appeared in the executed historical task when the current task is executed, and the accuracy of detection is reduced, namely, the situation that the non-inspector adopts the same material to execute the task, the detection data is inaccurate due to the improvement of the proficiency of the inspector in executing the task, and the detection result is influenced is avoided.

In some embodiments, the operator terminal 101 is further configured to: and responding to the adjustment operation, and adjusting the task material to be the same material as the historical acquisition material in the historical acquisition data.

For example, if the subject does not detect for a long time, the operator can choose to adjust the task material to be the same material as the historical collection material in the historical collection data, so that the operator can execute the VFT task with the same material, and the recovery condition of the brain function condition of the subject can be better evaluated through the comparison of the current collection data and the analysis data with the historical data.

Specifically, the above-mentioned history data may be presented on the data management interface, and the history data is not presented in the operator configuration interface 2, so as to avoid that too much information is presented in the operator configuration interface 2, which makes it difficult for the operator to acquire the effective information quickly and timely.

In some embodiments, the operator terminal 101 is configured to: receiving setting operation of an operator on the second menu item 3 and the setting item 4 on the operator configuration interface 2 under the condition that the target brain function analysis task selected by the operator is a VFT task; following the phase arrangement of the VFT task generated based on the setting operation, the VFT subtasks of the corresponding phases are sequentially executed by voice prompts, and near infrared data in the process of executing the VFT task by the testee are collected.

Specifically, in the embodiment of the present application, the VFT task may include three stages, namely, a first stage number, a second stage group word, and a third stage number. The stages may in turn contain different VFT subtasks, for example, the second stage group word may include multiple groups of VFT subtasks. Furthermore, other arrangements with respect to the VFT task are not excluded, and this embodiment is merely an exemplary illustration. The operator terminal 101 follows the phase arrangement of the set VFT tasks, sequentially plays voices to the testee according to the task content of each VFT subtask, wherein the played voices correspond to the task content of the VFT subtask to be executed in the current corresponding phase, and prompts the testee to execute the VFT subtask in the corresponding phase in the form of voices. The subject can clearly know the content of the VFT subtask to be executed based on the voice prompt played by the operator terminal 101, and execute tasks such as number and word grouping according to the voice prompt, and at the same time, the near infrared data acquisition device 102 or other devices matched with the near infrared data acquisition device are utilized to acquire near infrared data in the process of executing the VFT task by the subject.

The subject terminal 100 is configured to: in response to a communication connection with the operator terminal 101, a phase arrangement of VFT tasks with set configuration information is followed while presenting a gaze point for maintaining the attention of the subject at a fixed position on a display interface, sequentially prompting execution of VFT subtasks of the corresponding phase with text near the gaze point such that the text prompt is synchronized with the voice prompt of the operator terminal 101.

Specifically, the display interface of the subject terminal 100 sequentially presents text prompts corresponding to the respective task phases of the VFT near the gaze point on the display interface following the phase arrangement requirements of the VFT task.

Specifically, the fixation point can be displayed in the middle of the display interface or above the display interface, the display position of the fixation point is not limited specifically, and the fixation point is ensured to be easily watched by the sight line of the examinee when the examinee sits at the end, so that the distraction of the fixation point caused by the over-deflection of the position of the fixation point is prevented. The specific presentation mode of the gaze point can be "+", which is beneficial to enabling the testee to focus the gaze point to keep the attention, and the attention situation can not be dispersed due to interference of external environment and other factors, and the attention of the testee can not be promoted due to the gaze point presented on the display interface, so that the attention of the testee is kept in a natural state, and the acquired near infrared data can be ensured to objectively, accurately and reasonably reflect the brain function situation of the testee. Of course, the gaze point may also be presented in the form of a dot, which is not particularly limited in this application.

In some embodiments, the operator terminal 101 is further configured to: providing a switch item for controlling the sending of countdown information on the operator configuration interface 2;

transmitting the countdown information to the subject terminal 100 in response to a fifth operation of the switching item;

the subject terminal 100 is configured to: receiving the countdown information, wherein the countdown information at least comprises stage information of a next task stage or execution content information of a next VFT subtask and time information of the next task stage or the next VFT subtask;

and presenting the countdown information on a display interface in a later stage of the task stage.

In this way, by setting the switch item, the sending of the countdown information can be controlled, so that an operator can control the operator terminal 101 not to send the countdown information to the subject terminal 100, and can also control the operator terminal 101 to send the countdown information to the subject terminal 100, and by sending the countdown information, the subject can control the execution condition of the task as a whole, thereby ensuring the accuracy and the effectiveness of the acquired near infrared data.

Specifically, countdown information can be presented in the next task stage or in the later period of the next VFT subtask, on one hand, the countdown information does not distract the attention of the testee due to the existence all the time, which is beneficial to keeping the attention condition of the testee in a relatively natural and objective state, and near infrared data can be collected under the condition to accurately and reasonably evaluate the brain function condition of the testee; on the other hand, the examinee can know the remaining time for entering the next stage or the next VFT subtask and the task content based on the countdown information, so that sufficient psychological preparation is made before entering the next stage or the next VFT subtask, and the examinee is prevented from generating contradiction and anxiety emotion due to abrupt entering from one task stage to the next task stage. Therefore, the testee can keep higher matching degree, and further objective and accurate brain function condition assessment results are guaranteed.

Specifically, the countdown information is not presented with the execution content of the current VFT subtask, the current VFT subtask is presented only at the beginning of the subtask, and the display is stopped after a period of time, and the countdown information is displayed at the later stage of the task stage.

In some embodiments, the subject terminal 100 is configured to:

maintaining a presentation of a gaze point to the subject on a display interface;

presenting execution content prompt words of all target VFT subtasks within a first preset distance of the fixation point; and

upon receiving the countdown information transmitted from the operator terminal 101, the countdown information is presented at a countdown start time with a second preset distance from the gaze point, the second preset distance being greater than the first preset distance.

In this way, by controlling the distance between the text near the gaze point and the gaze point, it is possible to avoid excessive distraction of the subject when the subject performs the VFT task based on the display interface of the subject terminal 100, and it is possible to keep the subject's attention near the gaze point while reading the text-presented content, thereby avoiding a large distraction due to the text-presented and gaze point distance being too far.

And by setting a second preset distance to be greater than the first preset distance, the countdown information is presented in a manner that is farther and less significant than executing the content cue and the gaze point. Therefore, the testee can check the countdown information and simultaneously reduce the interference from the countdown information as much as possible, and meanwhile, the content of the next stage or the next VFT subtask can be known to a certain degree.

In some embodiments, the subject terminal 100 is configured to:

synchronously presenting the gaze point and execution content prompt of each target VFT subtask on a display interface at the starting time of each task stage; and

and stopping presenting the execution content prompt of the target VFT subtask on a display interface after the starting period of each task stage, and presenting only the fixation point.

Therefore, the method is beneficial to avoiding the condition that the text prompt with overlong or excessive presentation time is used as a stimulus, causing interference to the testee and affecting the brain function state of the testee, and is beneficial to the testee to make natural, normal and response conforming to the current brain function state when the testee performs tasks, so that the effectiveness of the acquired near infrared data is improved, and a more accurate brain function state assessment result can be obtained based on the acquired near infrared data.

Furthermore, although exemplary embodiments have been described herein, the scope thereof includes any and all embodiments having equivalent elements, modifications, omissions, combinations (e.g., of the various embodiments across), adaptations or alterations as pertains to the present application. Elements in the claims are to be construed broadly based on the language employed in the claims and are not limited to examples described in the present specification or during the practice of the present application, which examples are to be construed as non-exclusive. It is intended, therefore, that the specification and examples be considered as exemplary only, with a true scope and spirit being indicated by the following claims and their full scope of equivalents.

The above description is intended to be illustrative and not restrictive. For example, the above-described examples (or one or more aspects thereof) may be used in combination with each other. For example, other embodiments may be used by those of ordinary skill in the art upon reading the above description. In addition, in the above detailed description, various features may be grouped together to streamline the application. This is not to be interpreted as an intention that the disclosed features not being claimed are essential to any claim. Rather, the subject matter of the present application is capable of less than all of the features of a particular disclosed embodiment. Thus, the following claims are hereby incorporated into the detailed description as examples or embodiments, with each claim standing on its own as a separate embodiment, and it is contemplated that these embodiments may be combined with one another in various combinations or permutations. The scope of the application should be determined with reference to the appended claims, along with the full scope of equivalents to which such claims are entitled.

The above embodiments are only exemplary embodiments of the present application and are not intended to limit the present application, the scope of which is defined by the claims. Various modifications and equivalent arrangements may be made to the present application by those skilled in the art, which modifications and equivalents are also considered to be within the scope of the present application.

Claims

1. A near infrared brain function imaging system comprising an operator terminal, wherein the operator terminal is configured to:

providing a first menu item comprising a plurality of brain function analysis tasks, each brain function analysis task belonging to a topic of a different psychological paradigm;

receiving a first operation of selecting a target brain function analysis task from the first menu item by an operator;

in response to the first operation, an operator configuration interface corresponding to the target brain function analysis task is presented, the operator configuration interface configured to provide a second menu item of selectable task subclasses of the target brain function analysis task for an operator to select task subclasses, and to provide a setting item according to the target brain function analysis task selected by the operator for the operator to set subject configuration information associated with the selected target brain function analysis task.

2. The near infrared brain function imaging system according to claim 1, wherein the target brain function analysis task selected by the operator is a VFT task, the second menu item includes at least a task sub-item corresponding to the VFT task, the setting item includes at least an object attribute item corresponding to the subject configuration information, and a task material item corresponding to the task sub-item; wherein the object attribute item includes at least one of language information and identity information related to the subject.

3. The near infrared brain function imaging system according to claim 1, wherein the target brain function analysis task selected by the operator is a GO-NOGO task, the second menu item includes at least a picture type item and a picture replacement speed item corresponding to the GO-NOGO task, and the setting item includes at least an object attribute item corresponding to the subject configuration information; wherein the object property item includes at least identity information related to the subject.

4. The near infrared brain function imaging system according to any one of claims 1-3, wherein said operator terminal is further configured to:

in response to a second operation of the import item by an operator, historical data relating to the subject is configured within a corresponding setting item provided by the operator configuration interface.

5. The near infrared brain function imaging system according to claim 1, wherein said operator terminal is further configured to:

providing an editing item on the operator configuration interface;

responsive to a third operation of the editing item by an operator, presenting an editing interface for selecting the setting item and contents editable by the setting item;

and adjusting the setting items on the operator configuration interface based on the editing operation of the operator on the editing interface.

6. The near infrared brain function imaging system according to claim 4, wherein said operator terminal is further configured to:

7. The near infrared brain function imaging system according to claim 2, further comprising a subject terminal, said operator terminal configured to:

receiving setting operation of an operator on a second menu item and a setting item on the operator configuration interface under the condition that a target brain function analysis task selected by the operator is a VFT task;

following the phase arrangement of the VFT task generated based on the setting operation, sequentially executing the VFT subtasks of the corresponding phases by voice prompts, and collecting near infrared data in the process of executing the VFT task by the testee;

the subject terminal is configured to:

in response to a communication connection with the operator terminal, a gaze point for maintaining the subject's attention is presented at a fixed location on a display interface while following a phase arrangement of VFT tasks with configuration information set, sequentially prompting execution of VFT subtasks of the corresponding phase with text near the gaze point such that the text prompt is synchronized with the voice prompt of the operator terminal.

8. The near infrared brain function imaging system according to claim 7, wherein said operator terminal is further configured to: providing a switch item for controlling the sending of countdown information on the operator configuration interface;

transmitting the countdown information to the subject terminal in response to a fifth operation of the switching item;

the subject terminal is configured to: receiving the countdown information, wherein the countdown information at least comprises stage information of a next task stage or execution content information of a next VFT subtask and time information of the next task stage or the next VFT subtask;

9. The near infrared brain function imaging system according to claim 7, wherein said subject terminal is configured to:

and under the condition that the countdown information sent by the operator terminal is received, presenting the countdown information at a second preset distance from the fixation point at the beginning time of countdown, wherein the second preset distance is larger than the first preset distance.

10. The near infrared brain function imaging system according to claim 9, wherein said subject terminal is configured to: