WO2018143147A1

WO2018143147A1 - Information processing terminal and program for measuring brain function

Info

Publication number: WO2018143147A1
Application number: PCT/JP2018/002835
Authority: WO
Inventors: 充宏池田
Original assignee: 充宏池田; 間所俊晴; 中林泰
Priority date: 2017-02-01
Filing date: 2018-01-30
Publication date: 2018-08-09
Also published as: JP2018121893A

Abstract

Efficient, objective, and simple daily measurement of brain functions is realized. The information processing terminal for measuring the brain function of a test subject according to the present invention includes: a touch panel display; a display control means for executing display control of objects of different types on the touch panel display; a detection means for detecting a tap operation on the object by the test subject on the touch panel display; and a measurement means for measuring at least measurement values relating to holding of the memory, switching of memory, and changes in cognition of the test subject on the basis of the object display control and tap operation, wherein there is a certain degree of correlation between the measurement values and the score based on the Hasegawa dementia rating scale-revised (HDS-R).

Description

Information processing terminal and program for measuring brain function

The present invention relates to an information processing terminal and program for measuring brain function.

In an aging society in recent years, the number of elderly people with dementia and MCI (predecessor of dementia) is on the rise. According to statistics from the Ministry of Health, Labor and Welfare, there are 46.2 million people with dementia and 4 million people with MCI (14-year statistics). There is also statistical data.

At present, diagnostics using MRI, CT scan, etc. are performed as tests to know the surgical state of the brain, whereas in the case of dementia and MCI, first the Hasegawa Dementia Scale (HDS-R), Diagnosis based on interview tests such as mini-mental state test (MMSE) and Alzheimer's disease evaluation scale (ADAS) is performed.

Also, in addition to diagnosis based on an interview test by a doctor or the like, some diagnosis methods using a device for testing brain function are also known (see, for example, Patent Documents 1 and 2).

JP2013-077852A Special table 2014-525787 gazette

However, since there is a question-and-answer format with a patient, an interrogation test by a doctor or the like has a problem that it takes about 40 minutes per patient. In addition, for example, when a patient gives an ambiguous response, the evaluation score of a doctor or the like must be subjective.

On the other hand, as we face the recent aging society, it is desirable to conduct continuous brain function measurement for the elderly on a daily basis. When it is judged that a diagnosis by a doctor or the like is necessary by detecting a decrease in brain function due to aging or a decrease in brain function due to any disease (concussion, cerebral hemorrhage, etc.) is required.

The present invention has been proposed in view of the above points, and an object of one aspect is to achieve efficient, objective, and simple daily brain function measurement.

In order to solve the above problems, an information processing terminal according to the present invention is an information processing terminal that measures a brain function of a subject, and displays a touch panel display and objects having different types on the touch panel display. Display control means for executing control, detection means for detecting a tap operation of the subject on the object on the touch panel display, and at least retention of memory by the subject based on the display control of the object and the tap operation And measuring means for measuring a measurement value relating to memory switching and identification change, and the measurement value and a score based on the Hasegawa dementia scale have a certain correlation or more.

In order to solve the above problem, a program according to the present invention includes a display control unit configured to execute display control of objects having different types on an information processing terminal including a touch panel display on the touch panel display. On the touch-panel display, based on detection means for detecting the subject's tap operation on the object, display control of the object, and the tap operation, at least the subject's memory retention, memory switching, and identification change It functions as a measuring means for measuring the measured value, and the measured value and the score based on the Hasegawa dementia scale have a certain correlation.

According to the embodiment of the present invention, it is possible to realize efficient, objective and daily simple brain function measurement.

It is a figure which shows the structural example of the brain function measuring system which concerns on this embodiment. It is a figure which shows the hardware structural example of the brain function measuring system which concerns on this embodiment. It is a figure which shows the software structural example of the brain function measuring system which concerns on this embodiment. It is a figure which shows an example of the initial setting screen of the brain function measurement application which concerns on this embodiment. It is a figure which shows an example of the test 1 screen of the brain function measurement application which concerns on this embodiment. It is a figure which shows an example of the test 2 screen of the brain function measurement application which concerns on this embodiment. It is a figure which shows an example of the test 3 screen of the brain function measurement application which concerns on this embodiment. It is a figure which shows an example of the test result screen of the brain function measurement application which concerns on this embodiment. It is a figure which shows an example of the test result screen of the brain function measurement application which concerns on this embodiment. It is a figure which shows the test history list screen in the management screen which concerns on this embodiment. It is a figure which shows the test history detail screen in the management screen which concerns on this embodiment. It is a figure which shows the medical examination table | surface of the Hasegawa type dementia scale which concerns on this embodiment. It is the figure which showed the total result of the test 1 which concerns on this embodiment. It is the figure which showed the total result of the test 2 which concerns on this embodiment. It is the figure which showed the total result of the test 3 which concerns on this embodiment.

Embodiments of the present invention will be described in detail with reference to the drawings as appropriate.

<System configuration>
FIG. 1 is a diagram illustrating a configuration example of a brain function measurement system according to the present embodiment. A brain function measurement system 100 in FIG. 1 includes a tablet terminal 10, a control server 20, and a management terminal 30, and is connected via a network 40.

The tablet terminal 10 is a tablet-type information processing terminal used by a subject (for example, an elderly person). The tablet terminal 10 may be a smartphone or a PC having a touch panel display, but preferably has a predetermined screen size or more. In performing brain function measurement using the tablet terminal 10, an application program related to brain function measurement (hereinafter simply referred to as a brain function measurement application) is downloaded from the control server 20 via the network 40. ) Is installed in the tablet terminal 10 in advance.

The control server 20 is a server device that manages measurement results (measurement values) related to the brain function measurement test. When receiving the measurement result related to the brain function measurement test from the brain function measurement application of the tablet terminal 10, the control server 20 associates it with each subject and stores it in a DB (Database) or the like.

The management terminal 30 is an information processing terminal used when the administrator refers to the measurement result for each subject on the management screen. Here, the manager is a person who should refer to the measurement result related to the brain function measurement test, and corresponds to, for example, a doctor, a nurse, a caregiver, a care facility staff, and the like.

The network 40 is a communication network including wired and wireless. The network 40 includes, for example, the Internet, a public line network, WiFi (registered trademark), and the like.

<Hardware configuration>
FIG. 2 is a diagram illustrating a hardware configuration example of the brain function measurement system according to the present embodiment.

The tablet terminal 10 includes a CPU (Central Processing Unit) 11, a ROM (Read Only Memory) 12, a RAM (Random Access Memory) 13, a storage device 14, a touch panel display 15, and a communication device 16.

The CPU 11 executes various programs and performs arithmetic processing. The ROM 12 stores a program necessary for startup. The RAM 13 is a work area for temporarily storing processing performed by the CPU 11 and storing data. The storage device 14 stores various data and programs.

The touch panel display 15 is an input / display device realized by a touch panel capable of detecting tap coordinates (touch coordinates) on a display screen realized by a liquid crystal display, a plasma display, an LED display, or the like instead of operation keys and buttons. is there. The communication device 16 communicates with other devices via the network 40.

Similarly, the control server 20 includes a CPU 21, a ROM 22, a RAM 23, a storage device 24, and a communication device 25.

<Software configuration>
FIG. 3 is a diagram illustrating a software configuration example of the brain function measurement system according to the present embodiment. The brain function measurement system 100 includes a test execution control unit 101, a display control unit 102, a detection unit 103, a measurement unit 104, and a storage unit 105 as main functional units.

The test execution control unit 101 controls the execution of the test based on a predetermined rule so as to execute the tests related to “memory retention”, “memory switching”, and “identification change”.

The display control unit 102 performs display control of a screen related to test execution and objects having different types (for example, playing cards) on the touch panel display 15 under the control of the test execution control unit 101.

The detection unit 103 detects the tap operation of the subject on the object on the touch panel display 15.

The measurement unit 104 measures at least measurement values related to “holding of memory”, “switching of memory”, and “change of identification” by the subject based on the display control of the object by the display control unit 102 and the tap operation by the detection unit 103. To do.

The storage unit 105 has a function of storing a DB.

Of the above-described functional units, for example, the test execution control unit 101, the display control unit 102, and the measurement unit 104 may be included in the brain function measurement system 100 as a whole, and the tablet terminal 10 may be used depending on the mounting design. And the control server 20 may have it. Each functional unit described above is realized by a computer program that is executed on hardware resources such as a CPU, a ROM, and a RAM of a computer constituting the tablet terminal 10 and the control server 20. These functional units may be read as “means”, “module”, “unit”, or “circuit”.

<Brain function measurement app>
The brain function measurement application according to the present embodiment is an application program for performing brain function measurement on a subject using the tablet terminal 10. The brain function measurement application is preinstalled in the tablet terminal 10 by downloading it from the control server 20 via the network 40.

The brain function measurement tests performed by the brain function measurement application are as follows.

(1) Test for retention of memory This is a test for identifying an object by retaining the memory of an object (for example, a playing card) shown on the screen of the tablet terminal 10.

(2) Test for switching memory This is a test for storing an object appearing on the screen of the tablet terminal 10 and comparing it with an object appearing in the subsequent stage.

(3) Test for change identification This is a test for identifying an object appearing on the screen of the tablet terminal 10 by comparing it with an object appearing in the previous stage.

Hereinafter, the brain function measurement test to be performed will be described in detail with reference to a screen example of the brain function measurement application.

(Initial setting)
FIG. 4 is a diagram illustrating an example of an initial setting screen of the brain function measurement application according to the present embodiment. First, the subject (or an administrator who acts on behalf of the subject's operation) activates the brain function measurement application of the tablet terminal 10 and performs initial setting from the initial setting screen.

Screen A shows the top screen of the brain function measurement app. When the subject uses the brain function measurement app for the first time, user registration is required, so tap (touch) “new registration”. On the other hand, if the user registration has already been completed, tap “Login”. If you want to try the brain function measurement app temporarily without user registration, tap “Guest use”.

Screen B shows a new registration screen for the brain function measurement application. The subject inputs necessary items and taps “Confirm”.

Screen C shows a new registration confirmation screen of the brain function measurement application. The subject confirms the input necessary items, and if there is no error in the input, tap “Confirm” to complete the user registration.

On the other hand, screen D shows the login screen of the brain function measurement application. After entering the user ID (nickname) and date of birth, tap “Search (Login)”.

(Test 1) Test Regarding Retention of Memory FIG. 5 is a diagram showing an example of a test 1 screen of the brain function measurement application according to the present embodiment. As described above, the test 1 is a test related to the retention of the memory that retains the memory of the object (object) shown on the screen of the tablet terminal 10 and identifies the object. Hereinafter, a playing card is used as an example of an object (object) according to the present embodiment.

Specifically, in Test 1, since one target card (referred to as a target card) is first displayed on the screen, the subject memorizes the displayed card. Thereafter, the cards are displayed one by one in random order on the screen, and when the same card as the target card is displayed while holding the memory of the target card, the card is quickly tapped. Note that the target card under test is turned over and hidden.

For example, when “Heart A” is displayed as the target card, the subject memorizes “Heart A”. After that, when the cards are sequentially displayed one by one such as “Heart 3”, “Clover 10”, “Clover 10” on the screen, and then “Heart A” is displayed, the subject quickly Tap “Heart A”.

Test 10 has a total of 10 questions, and the brain function measurement app measures “number of correct answers” and “reaction time (reaction rate)” at the time of correct answers as the measurement results of test 1.

In Test 1, the brain function measurement application determines that the answer is correct when the same card as the target card is tapped. On the other hand, when a card different from the target card is tapped, or when no card is tapped within a certain time despite the same card as the target card being displayed, it is determined as an incorrect answer. Further, at the time of the correct answer, the time from when the same card as the target card is displayed until the card is tapped is measured as “reaction time” in units of 0.01 seconds, for example. Therefore, the “response time” becomes shorter as the subject taps the correct answer card more quickly.

(Test 2) Test Regarding Memory Switching FIG. 6 is a diagram showing an example of a test 2 screen of the brain function measurement application according to the present embodiment. As described above, the test 2 is a test related to memory switching in which an object appearing on the screen of the tablet terminal 10 is stored and compared with an object appearing in the subsequent stage.

Specifically, in Test 2, when cards are displayed in random order on the screen one after another and the same card is displayed continuously (when the previous card is stored and the next card is not switched) ) Tap the card quickly.

For example, when “Heart 3”, “Clover 9”, “Spade 2”, “Heart A” is displayed, and then “Heart A” is displayed, the subject quickly displays the “Heart A”. Tap.

Test 2 has 12 questions, and the brain function measurement app measures the “number of correct answers” and the “response time” at the time of the correct answer as the measurement results of test 2.

In Test 2, if the same card as the previous card is tapped, the brain function measurement application determines that the answer is correct. On the other hand, when a card different from the previous card is tapped, or when no card is tapped within a certain period of time even though the same card is continuously displayed, it is determined as an incorrect answer. Further, at the time of a correct answer, the time from when the same card as the previous card is displayed until the card is tapped is measured as the “reaction time”.

(Test 3) Test for Change Identification FIG. 7 is a diagram showing an example of a test 3 screen of the brain function measurement application according to the present embodiment. As described above, the test 3 is a test related to change identification in which an object appearing on the screen of the tablet terminal 10 is identified by comparing with an object appearing in the previous stage.

Specifically, in Test 3, when cards are displayed in random order on the screen and the same color card as the previous card is displayed (when the color of the next card has not changed), Tap the card. It is determined whether the color of red or black is the same regardless of the mark pattern or the number.

For example, if “Heart 3” (red), “Clover 9” (black) is displayed, and then “Clover 2” (black) is displayed, the subject quickly enters “Clover 2”. Tap.

Test 12 has 12 questions, and the brain function measurement application measures the “number of correct answers” and the “response time” at the correct answer as the measurement results of test 3.

In Test 3, the brain function measurement application determines that the answer is correct when a card of the same color as the previous card is tapped. On the other hand, if a card with a different color from the previous card is tapped, or if a card with the same color as the previous card is displayed but no card is tapped within a certain period of time, an error will occur. Judge the answer. Further, at the time of a correct answer, the time from when a card of the same color as the previous card is displayed until the card is tapped is measured as “reaction time”.

FIG. 8 is a diagram showing an example of a test result screen of the brain function measurement application according to the present embodiment. As described above, the brain function measurement application measures the “number of correct answers” and the “response time” at the time of correct answers as the measurement results (measurement values) of tests 1 to 3.

As shown in FIG. 8, on the test result screen, “number of correct answers” and “response time” at the time of correct answers are displayed for each test, and the test result and the age average value are written together. A graph or the like is illustrated. As a measurement result, it is preferable that the “number of correct answers” is large, and it is preferable that the “reaction time” is correct.

The subject (and administrator) can grasp the measurement result visually at a glance by referring to the test result screen. In addition, since the measurement result of the subject can be grasped by comparing with the age average, depending on the measurement result, the state of the brain function of the subject (for example, brain function attenuation, MCI, dementia, or brain function based on any disease) It is possible to detect a drop etc. quickly.

In addition, it is desirable that the brain function measurement test is performed at least a predetermined number of times. For example, since the reference value of the subject himself / herself can be seen by daily measurement, if an extreme abnormal value appears when compared with the reference value, any change in the brain function can be detected quickly.

Also, it is desirable that the condition of the subject is constant when performing the brain function measurement test. For this reason, when testing is performed continuously, it should be performed in the same time zone as much as possible.

In addition, excessive fatigue may affect the measurement results (especially reaction time), so refrain from implementation during malfunctions. Moreover, the evaluation with respect to the measured value of “the number of correct answers” and “reaction time” is performed only by comparison with the age average. This is because the “number of correct answers” decreases and the “reaction time” increases with age.

On the other hand, when all the tests are completed, the brain function measurement application of the tablet terminal 10 transmits a measurement result related to the brain function measurement test to the control server 20. When the control server 20 receives the measurement result from the tablet terminal 10, the control server 20 associates it with each subject (for each ID) and stores it in the DB. The measurement result related to the brain function measurement test includes, for example, information that should be stored in the DB, such as ID (nickname), test date and time, test ID, test type, correctness of each question, and reaction time.

(Management screen)
FIG. 9 is a diagram illustrating an example of a management screen according to the present embodiment. The administrator accesses the control server 20 using the management terminal 30 and refers to the measurement result for each subject from the displayed management screen. The control server 20 can be accessed, for example, by inputting a URL from a web browser on the management terminal 30 or via a dedicated application.

Screen E shows the top screen of the management screen. When logging in to the management screen, the administrator inputs the facility ID and password issued in advance, and taps “Login”.

Screen F shows the user list screen of the management screen. The list screen displays subject information (ID, name, date of birth, age, sex, etc.) of subjects belonging to the facility in a list format. In addition, when referring to the test history of a specific subject, the “display” on the right side of the subject row is tapped (see FIG. 10).

On the other hand, the screen G shows the user search screen of the management screen. From this search screen, it is possible to search for a specific subject using the subject information (ID, name, date of birth, age, sex, etc.) of the subject as a keyword (see FIG. 10).

FIG. 10 is a diagram showing a test history list screen on the management screen according to the present embodiment. On the test history list screen, subject information (ID, name, date of birth, age, sex, medical history, medication, memo, etc.) and test history of a specific subject are displayed in a list. When referring to the details of one test history, tap “Display” (see FIG. 11).

FIG. 11 is a diagram showing a test history detail screen on the management screen according to the present embodiment. The test history detail screen displays subject information of a specific subject and test history details. Specifically, test date / time, test ID, test type, correctness / reaction time and response time of each question, average response time, number of responses, and graph with test date on the horizontal axis and average reaction time on the vertical axis are displayed. .

This allows the administrator to visually grasp the measurement results of a specific subject. As the measurement result, the larger the “number of correct answers” is, the more preferable, and the “reaction time” at the time of the correct answer is more preferable. Therefore, the administrator can refer to the graph to compare the measurement result of this time with the past and determine the improvement degree of the brain function in rehabilitation or the like.

In addition, based on the comparison with the reference value of the measurement results of the subject himself / herself accumulated by daily measurement, some sudden change in brain function may have occurred when sudden abnormal values appear. . In such a case, the control server 20 issues a warning (warning) on the management screen.

In general, it is recognized that brain function is lowered by aging. That is, in the brain function measurement test, “response time” decays with aging. The control server 20 calculates the general decay rate due to aging based on the reaction time of the age average, and the decay rate greatly exceeding the general decay rate is found in a specific subject from comparison with the decay rate of the response time of the subject. If a warning is issued, a warning is issued on the management screen.

As described above, the brain function measuring system 100 according to the present embodiment can provide, for example, the following effects.
-Brain function measurement can be performed in a short time of about 10 to 20 minutes per subject. For this reason, compared with the conventional case where a medical examination test for a doctor or the like has been performed, the burden on the doctor or the like can be reduced and medical costs can be reduced.
-Since the measurement results based on the number of correct answers and reaction time are output by the application related to the brain function measurement, objective brain function measurement can be performed.
-When performing brain function measurement, the subject only needs to tap the tablet terminal 10 and can be easily operated by an elderly person or the like. Not affected by different cultural backgrounds (education, etc.) for each subject. Neither medical expertise nor computer knowledge is required.
・ Even in facilities, it is possible to continuously measure brain function every day.
Since it is only necessary to prepare the tablet terminal 10 (brain function measurement application), it can be easily introduced at a low cost in a facility or the like. Therefore, widespread use can be expected.

That is, according to the brain function measurement system 100 according to the present embodiment, it is possible to realize efficient, objective and daily simple brain function measurement.

<Hasegawa Dementia Scale>
The Hasegawa Dementia Scale (HDS-R) is a simple verbal intelligence test created by Kazuo Hasegawa, one of the cognitive function tests used to diagnose dementia. It is also called the Hasegawa Simple Intelligence Evaluation Scale. In Japan, the Hasegawa-style dementia scale or the mini mental state test (MMSE) is often used.

FIG. 12 is a diagram showing an interview table of the Hasegawa dementia scale according to the present embodiment. The Hasegawa dementia scale (revised version) is composed of nine questions such as orientation and memory, and it is known to evaluate dementia based on comprehensive evaluation points. When the total score obtained by the subject through the interview test is 20 points or less, the possibility of dementia is high, and when the score is 21 points or more, it is determined as non-dementia. If it is confirmed that the disease is dementia, it is judged as mild dementia at 20 points or more, moderate at 11-19 points, and advanced dementia at 10 points or less.

<Correlation between brain function measurement app and Hasegawa scale>
The correlation between the brain function measurement application and the Hasegawa dementia scale according to this embodiment will be described below. By calculating the correlation coefficient based on the evaluation score when both are performed on the same subject, the degree of correlation between the brain function measurement application and the Hasegawa scale is observed.

Number of subjects: 101
Subject age: 40-101 years Subject sex: male, female Subject is based on pre-required medical interviews and examinations based on the Hasegawa dementia scale by doctors, etc. Must be included.

First, an interview test based on the Hasegawa dementia scale was performed by all doctors on the subjects, and the total score (maximum 30 points) obtained by each subject through the interview test was obtained.

Next, for all subjects, this time, a test was performed using the brain function measurement application according to the present embodiment, and a total score obtained by each subject through the test was obtained. In the test of the brain function measurement application, the number of correct answers (= score) is obtained for each test.

FIGS. 13 to 15 are diagrams showing the aggregation results of tests 1 to 3 according to the present embodiment.

The x-axis of the graph (a) indicates the number of correct answers obtained by the subject in the test of the brain function measurement application (test 1 is a maximum of 10 points). The y-axis indicates the total score obtained by the subject on the Hasegawa Dementia Scale (30 points maximum).

In the graph (a), test results for all subjects are plotted on the corresponding coordinates (total score. Number of correct answers). Note that the number of plots on the graph (a) is equal to the number of subjects 101, but the number of subjects with the same total score / number of correct answers overlaps, so that the number is less than 101 in the figure.

Here, when considering the relationship between x and y, a correlation coefficient is generally used. For example, y = 1.75441x + 8.2283 shown in the graph (a) relating to “Test 1” in FIG. It means an equation representing a straight line that minimizes the sum of squares of distances from the plots of 101 persons. R ² = 0.63829 means the square of the correlation coefficient indicating the relationship between the score of the Hasegawa dementia scale and the number of correct answers in Test 1 of the brain function measurement application. Therefore, since the correlation coefficient R is approximately 0.798930, it is statistically recognized that both have a strong correlation.

Similarly, as shown in the graph (a) relating to “Test 2” in FIG. 14, R ² = 0.599934 represents the score of the Hasegawa dementia scale and the number of correct answers in Test 2 of the brain function measurement application. It means the square of the correlation coefficient indicating the relationship. Therefore, since the correlation coefficient R≈0.774554, it is statistically recognized that both have a strong correlation.

Similarly, as shown in the graph (a) relating to “Test 3” in FIG. 15, R ² = 0.55840 represents the score of the Hasegawa dementia scale and the number of correct answers in Test 3 of the brain function measurement application. It means the square of the correlation coefficient indicating the relationship. Therefore, since the correlation coefficient R≈0.747261, it is statistically recognized that both have a strong correlation.

The general relationship between the correlation coefficient value and the strength of the correlation is shown below. The correlation coefficient takes a value between −1 and +1, and the closer the correlation coefficient is to 1, the more positive the correlation between the two data.
0.0 to ± 0.2 (almost) no correlation
± 0.2 to ± 0.4 There is a weak correlation
± 0.4 to ± 0.7 correlated
± 0.7 to ± 0.9 Strong correlation
± 0.9 to ± 1.0 (almost) complete correlation The Hasegawa Dementia Scale is also highly relevant to the above-mentioned MMSE, a question set developed in the United States for the diagnosis of dementia. As for the correlation coefficient (correlation value) based on the evaluation point when the same subject is performed, there is also data of 0.94.

As described above, it is recognized that there is a high correlation between the measurement value based on the brain function measurement application according to the present embodiment and the score based on the Hasegawa dementia scale. Since it takes a high burden to conduct daily interviews based on the Hasegawa Dementia Scale by doctors, etc., brain function measurement can be easily performed on a daily basis by using the brain function measurement app as a supplementary device (auxiliary device). It becomes possible to do.

<Summary>
As described above, according to the brain function measurement system 100 according to the present embodiment, it is possible to realize efficient, objective and daily simple brain function measurement.

It should be noted that although the present invention has been described by way of preferred embodiments of the present invention with specific examples, these specific examples may be used without departing from the broad spirit and scope of the present invention as defined in the claims. Obviously, various modifications and changes can be made to the examples. In other words, the present invention should not be construed as being limited by the details of the specific examples and the accompanying drawings.

DESCRIPTION OF SYMBOLS 10 Brain function measurement system 20 Control server 30 Management terminal 31 Imaging device 40 Network 100 Brain function measurement system 101 Test execution control part 102 Display control part 103 Detection part 104 Measurement part 105 Storage part

Claims

An information processing terminal for measuring a subject's brain function,
Touch panel display,
Display control means for executing display control of objects having different types on the touch panel display;
On the touch panel display, detection means for detecting a test subject's tap operation on the object,
Based on the display control of the object and the tap operation, at least measuring means for measuring a measurement value related to retention of memory, switching of memory and identification change by a subject,
Between the measured value and the score based on the Hasegawa dementia scale, having a certain level of correlation,
An information processing terminal characterized by
The display control means displays the first object for the first time, then hides the first object, and includes the first object and an object of a type different from the first object. In random order,
The detection means detects a test subject's tap operation on the first object after the first time,
The measurement means determines a time from when the first object is displayed for the first time as a measurement value related to the retention of the memory to when a tap operation of the subject with respect to the first object is detected after the first time. Measuring,
The information processing terminal according to claim 1.
The display control means displays objects having different types in random order,
When the same object is continuously displayed, the detecting means detects a test subject's tap operation on the same object,
The measuring means measures a time from when the same object is continuously displayed as a measurement value related to the switching of the memory until a test subject's tap operation on the same object is detected;
The information processing terminal according to claim 1 or 2.
The display control means displays different types of objects in random order,
When the same type of object is continuously displayed, the detection means detects the subject's tap operation on the same type of object,
The measuring means measures the time from when the same type of object is continuously displayed as a measurement value related to the identification change until the subject's tap operation on the same type of object is detected,
The information processing terminal according to any one of claims 1 to 3, wherein:
To information processing terminal equipped with touch panel display,
Display control means for executing display control of objects having different types on the touch panel display;
On the touch panel display, detection means for detecting a test subject's tap operation on the object,
Based on the display control of the object and the tap operation, at least function as a measurement means for measuring a measurement value related to retention, switching of memory, and identification change by a subject,
Between the measured value and the score based on the Hasegawa dementia scale, having a certain level of correlation,
A program for measuring the brain function of a subject characterized by
The display control means displays the first object for the first time, then hides the first object, and includes the first object and an object of a type different from the first object. In random order,
The detection means detects a test subject's tap operation on the first object after the first time,
The measurement means determines a time from when the first object is displayed for the first time as a measurement value related to the retention of the memory to when a tap operation of the subject with respect to the first object is detected after the first time. Measuring,
The program for measuring a brain function of a subject according to claim 5.
The display control means displays objects having different types in random order,
When the same object is continuously displayed, the detecting means detects a test subject's tap operation on the same object,
The measuring means measures a time from when the same object is continuously displayed as a measurement value related to the switching of the memory until a test subject's tap operation on the same object is detected;
A program for measuring a brain function of a subject according to claim 5 or 6.
The display control means displays different types of objects in random order,
When the same type of object is continuously displayed, the detection means detects the subject's tap operation on the same type of object,
The measuring means measures the time from when the same type of object is continuously displayed as a measurement value related to the identification change until the subject's tap operation on the same type of object is detected,
The program for measuring the brain function of the subject according to any one of claims 5 to 7.