SU960850A1 - Device for checking patient psychophysiological condition - Google Patents

Description

(5+) DEVICE FOR THE CONTROL OF PSYCHOPHYSIOLOGICAL STATE OF THE TESTED The invention relates to automatic and digital techniques that can be used to study psychophysiological processes reflecting the state of memory and operational thinking mechanisms of the subject. A device is known comprising a simulator, sensors, physiological parameters selection units, a comparison, a control setpoint, a load control indication, a switching unit, an analog-digital converter, a computing unit, a control unit, a measurement unit for the work being performed, and a data output unit Cl. However, this device can only be used for agrometric studies. The closest in technical essence to the invention is a device containing an information board, test subject and experimenter's consoles connected to the control board and to the analysis unit, which is connected to the counter block, control boards and the registration block connected to the counter block, program block connected to the experimenter's console, an analysis unit and a time task unit, the outputs of which are connected to the experimenter's console and a control board, the imaging unit is connected to the experimental panels The mentor and the subject, with the programs and time assignments, and with information boards made in the form of multi-segment ziakovyh indicators, the distributor is connected to the control panel of the test person, to the blocks of counters and the task time t23. A disadvantage of the known device is the limited possibility of implementing a set of operational test tasks in the study of the state of memory and operational thinking mechanisms. 396 The aim of the invention is to expand the functionality by increasing the number of operational-type test items and increasing the accuracy of measuring the dynamics of psycho-physiological processes. The goal is achieved by the fact that the device containing the first information board has a timer, the output of which is connected to the first input of the task execution time counter, a program input block, a response keypad, the first output of which is connected to the counting input of the counter of the number of responses, the second vy1khod is connected with the first input of the comparison circuit, the first output of which is connected to the counting input of the counter of the number of correct actions and the second information board is entered to the first input of the first indicator board, the second one The indicator board, the counter — overshoot response time, the count of exceedances, the research cycle control unit, the buzzer, the register, the AND, OR elements, the clock generator, the shift register, the address counter and the memory block, whose information and address inputs are connected respectively with the first output of the program input block and with the output of the address counter, the first and second inputs of which are connected respectively to the first output, the clock generator and the second output of the program input block, the output block the memory is connected to the information input of the shift register, the clock input of which is connected to the second output of the clock generator, the first and second outputs of the shift register are connected respectively to the first input of the And element and to the second input of the comparison circuit, the third output of the shift register is connected to the information inputs of the first the information board and the register, the output of which is connected to the input of the second information board, the output of the AND element is connected to the control input qoM of the register and to the first input so. This generator, the third output of which is connected to the second input of the element I, the first output of the comparison circuit is connected to the second input of the clock generator and to the first input. (the research control block. ni, the second and third outputs of the comparison circuit are connected to the inputs of the OR element and the inputs of the second indicator board, the output of the OR element is connected to the second inputs of the first indicator board and the research cycle control unit, the first output of which is connected to the second input of the counter the task execution time and to the input of the answer keypad, the second output of the research cycle control unit is connected to the first input of the overtime counter, to the input of the counter the number of exceedances and to the input of the buzzer, the timer output is connected to the second input of the counter of the response time and the third input of the control cycle control unit. In the device, the control cycle control block contains two counters, two comparison circuits, the switching node of the source data, the elements NAND, OR and the switching element, the output of which is connected to the counting input of the first counter, the first input of the block is connected to the first input of the OR element and the switching element, the second the input of which and the counting input of the second counter are connected to the third input of the block, the second input of which is connected to the second input of the OR element and to the first input of the NAND element, the outputs of the switching node of the source data are connected respectively to the third input of the switching element, to the second input of the AND element -NON and to the first inputs of the first and second comparison circuits, the outputs of which are respectively the first and second outputs of the unit, the second inputs of the first and second comparison circuits are connected respectively to the outputs of the first and second counters s, adjusting inputs are connected respectively to the output of AND-NO element and OR element yield. 1 shows a block diagram of the device; in fig. 2 is a functional block diagram of a research cycle control unit; in fig. 3 placing response buttons on the keypad of the answers of the test panel and an example of the location of the figures on the tablet to implement one of the test tasks; in fig. 4 spatially oriented figures, synthesized on the 596 sign intikator, on the basis of which test tasks are built, aimed at studying the characteristics of attention and the operational memory of the subject. The device contains a program input block 1, a memory block 2, an address counter 3, a shift register k, a clock generator 5, a comparison circuit 6, a register 7, an AND 8 element, an OR 9 element, a test console 10 containing the answer keypad 11, information board 12, information board 13, indicator TI, indicator board 15 and buzzer 1b, counting unit 17 that includes the counter 18 for the number of answers, counter 19 for the number of correct actions, task time counter 20, counter 21 for exceeding the reporting time de Actually, the counter 22 of the number of exceedances, the timer 23, the research cycle control unit 2, including the source data switching node 25, the switching element 26, the AND-NE 27 element, the counter 28, the OR element 29, the counter 30, we compare 31 and 32. The input unit 1 serves to read and transfer the test program data from the punched tape to the memory unit 2. Block 2 is used to receive, store and output data of the study program on request through the shift register k to the comparison circuit 6, register 7, -I element 8 and information board 12. Address counter 3 in the mode of receiving information from the service input block 1. It is used to distribute the input information elements in memory cells of block 2, and in playback mode to output data from block 2 to shift register k on demand from the clock generator 5. The shift register serves to receive information from block 2 and distribute it to strict compliance This is due to the algorithm of transfer to the inputs of the comparison circuit of register 7, element 8 and information board 12. The clock generator 5. operating in the start-stop mode is used to generate a series of clock pulses strictly dosed in number and sequence of influence on the inputs of the address counter 3i of the register k the shift and the element of AND 8. The comparison circuit 6 serves to identify the equivalence or non-equivalence of the parameters of the response of the subject (A) with the programmed response (c). It has two information inputs and three signal outputs. Its first output is intended to transmit the signal of equivalence A-8, and the second and third to transmit signals of unequalities and. Register 7 serves to receive current information from the shift register f to the addressed information board 13. Element I 8 is designed to form a recording signal for information addressed to register 7 and to start the clock generator 5 The remote control 10 of the subject is structurally executed as a separate unit and can be scattered at a distance of up to 20-25 m from the console 1 / (researcher. The test console and the researcher console are connected by cable. This achieves the possibility of remote control of the process of psychophysiological studies in The bay and pressure chambers or in any other isolated room. The answer keypad 11 consists of nine vertically arranged and numbered buttons, next to which are placed on the tablet figures (Fig. 3) and the answer button. With: left answer keypad 11 Also included are a response code generation circuit, a response implementation signal generator, and a task end signaling device (not shown). The information board 12 is executed on a segmented character indicator and serves to visualize the stimulus signals to the subject. Information board 13 is also performed on a segmented character indicator and serves to present additional stimulus signals to the subject relative to the conditions of the current test task. For example, it can be one (any) spatially oriented figure of FIG. h; which becomes the source for sequential decoding of the orientation of the subsequent figures presented on the information board 12. In other tasks, the information board 13 (together with the information board 12) is intended to simultaneously represent two complex-structured figures intended to perform the corresponding computational, transformative and other operations , information for which is encoded in the structures of the figures themselves. The indicator board 1 serves to visualize the evaluation signals of each response of the subject as signals Correctly, Error. The indicator board 15 serves to visualize the nature of the error in the form, in the response performed, in the implementation of a certain type of test tasks. The indicator board 15 in these cases is used as a hint to minimize the number of search steps for a one-to-one match, for example, between the elements of the known system A and the numbers of the buttons on the answer keypad 11 and the elements of the specified system C - the indexed values of the informational sign board indicator segments 12. Audible The detector 16 serves to notify the test subject of the fact that he has exceeded a predetermined time for response. Unit 17 serves to measure 11 and record performance indicators for the test from the subject and to display the result on an indicator board (not shown). The research cycle control unit 2A serves to set the cycle for performing the current test task according to one of three possible criteria, namely, by the number of consecutively correctly performed actions, or by the number of correct actions, or by the task execution time, and also by setting the time interval on the timeliness of the response. The corresponding criteria for the execution of the task is set depending on the type of the current test task, and the time interval for each task is set on the basis of

indicators obtained from this subject or based on data from the gene.

Node 2 (Fig. I) is designed for. common commutation of communication channels and input of parameters of specified criteria. It consists of a switchboard. Register shift, in which the incoming information is translated into a parallel code. At the same time, the stimulus information from the shift register t is fed to the inputs of the information board 12 and register 7, the programmed response information is fed to the input of the diagram for three selective positions, parameter input organs and two registers (not shown). Element 2b serves to selectively pass the equivalence signals or interval pulses to the input of the count of the number 28. The IS-NOT element 27 performs the function of switching the disparity signal to the reset control input of the counter 28. The OR element 29 performs the collective function nonequivalence equivalence signals and for passing on chi control the reset input of counter 32. Counters 28 and 32 are intended to measure the current parameters, apparatus operates in the following manner; When a trigger signal is supplied from the outside to the input of the input unit 1, the memory unit 2 is set to the recording mode, the tape drive mechanism is activated in the unit 1, and information is sequentially recorded from the punched tape into the memory unit 2. In this case, at each step of reading / and information from block 1, a clock pulse arrives at the input of address counter 5, which distributes the elements of the input information to the addresses of the memory cells of block 2. At the end of entering information from punched tape, block 1 forms the Stop command by which the tape mechanism stops, and block 2 is set to read mode. From this moment on, the device is ready for. In the production of recorded information. When the subject is ready for work, a second start signal is applied, which is fed to the input of the clock generator 5 and starts it. The latter forms a series of clock pulses, which alternately arrive at the input of the address counter 3 and the shift register k, and at the end of the cycle - at the input-element And 8, resulting in information belonging to the same stock; the presentation is displayed by the address counter 3 from memory block 2 in

b comparison, and the command signal - to the input element And 8.

Depending on the code of the command signal at the input of the element And 8, a condition is established which provides for the presentation of stimulus information on one or two information boards. When working only with the information1-ion board 12, the input of the And 8 element is supplied from the shift register k, the O code signal. As a result, when polled by the clock generator 5 (at the end of the operation cycle) the state of the And 8 element, the latter is not excited and the stimulus information From shift register 4, it is not recorded in register 7 .. Therefore, information board 13 remains in a zero (unexcited) state, and on information display 12, a stimulus signal is visualized according to t VII with information signals at the output of the shift register. There can be any of the possible signs synthesized on a segmented sign indicator,

In each particular case, depending on the content of the text of the test task, the presented stimulus signal on information board 12 can be either a digit, or a letter of Russian or Latin alphabets, or a structural sign. In any case, the subject responds to the stimulus signal in accordance with the instructions and rules. complete the task and responds by pressing the corresponding button on the answer keypad 11. So, for example, if on the information board 12 numbers from 1 to 9 are shown in random order and the subject responds to each of them by pressing the corresponding button on the keypad 11, then, when responding, the response code arrives at the input of the comparison circuit 6 and the signal of the realization of the response to the counting input of the counter 18 of the responses and to the start input of the counter 20 of the task execution time, which is started by the first response action. If the response action was performed correctly, then the output of the comparison circuit 6 generates an equivalence signal (), which is received at the input counter 19 of the number of correct actions, indicator 1, cycle control unit 2 is used

following and to the input of the clock generator 5.

As a result, the counter 19 of the number of correct actions captures a quantitative value, the signal is visualized on the indicator board 14 Correctly, in the control cycle control unit 2k, the result of the completed response is recorded (if the criterion for this parameter is set), and the clock generator 5 starts and issues the following A series of clock pulses, which are similarly fed to the inputs of address counter 3 and the shift register. At the same time, on the information board 12, the next stimulus signal is visualized, and the corresponding response code signals are received at the input of the comparison circuit 6.

Otherwise, if the response from the subject you have-. is incorrect, then the output of the comparison circuit 6 generates a signal of inequality, which is fed to the corresponding indicator of the indicator board 15 and through the element OR 9 to the inputs of the indicator board and the research cycle control unit 2k, as a result, the corresponding indicator turns on on the indicator 15 (if this is provided for by the study program), the Error signal is turned on on the indicator board 1L, and in block 2 the fact of the inconsistency of the response is recorded. In addition, the previously presented stimulus signal on information board 12 remains the same until the next correct response.

Workflows in the device similarly proceed when any other task is performed, for example, when searching for a stimulus sign among the figures depicted on the tablet (FIG. 3), followed by pressing the answer button located in the same row with the sought figure or when performing tasks to uncover uncertainty

Claims (2)

In order to minimize the number of search steps when disclosing uncertainty (the last task), indicator tabs, 15, are used. 11 I The essence of performing such a task is to establish, by a series of consecutive samples, unambiguity between the numerical designation of the positions of the segments of the sign indicator of the information board 12 (system C) and the numbering of buttons of the answer 11 keypad (system A). And the task is considered completed, if the subject correctly performs K consecutive response actions, on the basis of which it can be argued that the established communications are reliably fixed in the memory, since for the current task the numbering of the positions is If the t-segment sign indicator indicator can be installed by the program with one of the TG options, then when a test subject reacts to a system of m segments that are presented one at a time on the information board 12, he can first detect only the established link by performing in the limit TP4 (GL-1) + + (T-2) ... + 1 indicative samples, provided that for each of them he receives information in the form of a positive or negative assessment of the response from the indicator board k. At the same time, using the signals of the indicator board 15, the number of approximate samples is reduced to f irtaxo + (t -) + ... + 1, i.e. 1.8 times at t 7, since for each negative sample the subject receives additional information in the form or indicating the search area for the correct response action, which contributes to the choice of purposeful tactics to solve the problem. When implementing test tasks with two stimulus signals presented on information boards 12 and 13, a single signal is sent from the shift register k to the input of the element 8, which is excited at the time of its interrogation from the clock generator 5 and transmits a single signal to the input of the record register 7 and the start input of the clock generator 5. As a result, the current of the stimulus information is registered, the shift is written to the register 7 and the clock generator 5 is restarted, by which it is similarly derived from 0 Block 2 is the next incentive information. At the end of the second cycle of operation, the clock generator 5 stops, and on the information boards 12 and 13, the stimulus signals are visualized. 5this can be two single digits or two figures oriented in space (Fig. 4), one of them. which is the original, and the second value to be decoded by orientation relative to the first, or any other figures. The change of the sign presented on the information board 13 is carried out in strict accordance with the program of my current test task — when the command signal is sent to the input of element 8. To detect the fact of the completion of the test task, the test cycle control unit 24 sets one of three possible criteria for its implementation. When implementing any criterion, in node 25 a corresponding quantitative parameter and type of criterion is established. So, for example, when setting the performance criterion for the number of consecutively executed actions from node 25, the code signals of the parameter of the specified criterion to the input of the comparison circuit 31 and the control signals to the inputs of element 2b and AND-NOT element 27. As a result operation signals of equivalence from the output of the device comparison circuit 6 are received through element 2b to the input of the counter 28, which records the number of correct actions. Moreover, if in the process of performing the task, the subject performs an erroneous action, then the inequality sigal from the output of the OR element 9 of the device will go through the EAP 27 element. As a result, in the course of operation, the signals of equivalence from the output, circuit 6 of the device will go through the element 2b to the input counter 28, which records the number of correct actions. In this case, if in the process of performing the task, the subject performs an erroneous action, then the signal of inequality from the output of the device OR 9 element goes through the I-NB 27 element to the control input to reset the counter 28, after which it starts the counting with zero. 1396 When the meter 28 reaches the given quantitative limit, a task execution signal is generated at the output of the circuit 31, which is applied to the blocking buses of the task execution time counter 20, the response keypad 11 and the end panel of the task 10 of the test subject. .. Similarly, the criterion for performing the task by the number of correct actions is implemented. The only difference from the previous criterion is that the prohibitive signal from the node 25 is sent to the input of the NAND 27 element. As a result, the counter 28 is not reset when the signal is present unequal; When implementing the task fulfillment criterion over a time interval, the input of switching element 2b is supplied from node 23, a signal allowing interval pulses to pass from timer 23 to counter 28 input. The rest of the processes for implementing this criterion are similar to those described above,. When the criterion associated with the response time is fulfilled, node 25 establishes a second quantitative parameter, the code signals from which are fed to the input of the comparison circuit 32. With the first response from the subject to the counter 30, the pulses start to arrive from timer 23 , and when performing the next response, the signal of equivalence or disparity from the device enters through the OR element 29 to the control input of the counter 30, which is reset to its initial state. If the response action was taken in less than a predetermined time, then the comparison circuit 32 does not generate a mismatch signal. Otherwise, from the output of the circuit 32, the mismatch signal is fed to the input of the counter 21 for exceeding the response time, to the counting input of the counter 22 to the number of exceedances and to the audio analyzer 16. During the time the signal was applied, the mismatch to the input of the counter 21 exceeded the time otBeTHoro action the interval pulses come from timer 23, the buzzer 1b turns on and sends an intermittent sound, and the counter 22 of the number of exceedances records the event. The next response, counter 30 is reset to the initial of PICs and subsequently all the processes are repeated similarly. Claim 1. Device for monitoring the psycho-physiological state of the subject, containing the first information board, the timer, the output of which is connected to the first input of the task time counter, the program input block, the response keypad, the first output of which is connected to the counting input of the response number counter, the second output is connected to the first input of the comparison circuit, the first output of which is connected to the counting input of the counter of the number of correct actions and to the first input of the first indicator board, In order to expand functionality by increasing the number of operational-type test items and improving the accuracy of measuring the dynamics of psycho-physiological processes, a second information board, a second indicator board, an excess time counter, an excess number counter, a control unit the research cycle, the buzzer register, the elements AND, OR, the clock generator, the shift register, the address counter and the memory block, the information and the address inputs of which are connected respectively to the first output of the program input block and to the output of the address counter, the first and second inputs of which are connected respectively to the first output of the clock generator and to the second output of the program input block, the output of the memory block is connected to the information one, the shift register input, clock the input of which is connected to the second output of the clock generator, the first and second outputs of the memory register are connected respectively to the first input of the AND element and to the second input of the comparison circuit, the third you od regi-. The shift bar is connected to the information inputs of the first bulletin board and register, the output of which connected to the input of the second information board, the output of the element I is connected to the control input of the register and to the first input of the clock generator, the third output of which is connected to the second input of the element I, the first output of the comparison circuit is connected to the second input of the clock generator and to the first input of the research control unit , the second and third outputs of the comparison circuit are connected to the inputs of the OR element and c. the inputs of the second indicator board, the output of the OR element is connected to the second inputs of the first indicator board and the research cycle control unit, the first output of which is connected to the second input of the task execution time counter and the input of the answer keypad, the second output of the research cycle control unit is connected to the first input of the counter exceeding the response time, to the input of the counter of the number of exceedances and to the input of the buzzer, the timer output is connected to the second input of the counter above neither the time of response and with the third input of the research cycle control block, 2. The device according to claim 1, which is such that the research cycle control block contains two counters, two comparison circuits. source data switching node, NID, OR elements and a switching element, the output of which is connected to the estimator's TiepBoro input, the first input of the block is connected to the first inputs of the OR element and the switching element, the second input of which and the counting input of the second counter is connected to the third input unit, the second input of which is connected to the second input of the OR element and to the first input of the NAND element, the outputs of the switching node of the source data are connected respectively to the third input of the switching element, to the second input of the NAND element and to the ne To the first inputs of the first and second comparison circuits, whose inputs are the first and second outputs of the unit, respectively, the second inputs of the first and second comparison circuits are connected respectively to the outputs of the first and second counters, the installation inputs of which are connected respectively to the output of the ItNET element and to the output of the OR element. Sources of information taken into account during the examination 1. USSR author's certificate W 6AAij62, cl. A 61 B 5/05, A 63 B 23/0, 1976. 2. Author's testimony of the USSR № 43555, cl. G 09 B 7/00,. A 61 B 5/16, 1972 (prototype).  "M ii t. L Ih L L r I I LI f J nt J l one i O i I I t t L E WITH I I D I I II FIG If