SU1602465A1 - Device for psychological examination - Google Patents

Abstract

The invention relates to medical technology and is intended for use for diagnostic purposes. The device further comprises a code converter. The device has additional functionality for diagnosing due to presenting the subject with simultaneously heterogeneous information set randomly. In this case, the error of the subject and the reaction time are recorded, which makes it possible to objectively judge its capabilities with a slight increase in hardware costs.

Description

The invention relates to medical technology and can be used for diagnostic purposes.

The purpose of the invention is to expand the field of application of the device by including in the study the elements of the subject's activities associated with the simultaneous processing of heterogeneous information specified in a random way.

The drawing shows a functional diagram of the proposed device.

The device contains a control unit 1, a controlled master oscillator 2, a random time oscillator 3, a random number generator 4, a decoder 5, a code converter 6, a controlled sound generator 7, an acoustic stimulus source 8, an encoder 9, a light stimulus source 10, a receiver 11 responses, unit 12 measures the reaction time, unit 13 error, the first 14 and second 15 counters, the first 16 and second 17 registers, unit 18 memory, unit 19 calculations, unit 20 registration.

The device operates in three modes: the mode of presenting acoustic information, the mode of presenting light information and the mode of presenting heterogeneous (acoustic and light simultaneously) information.

After turning on the litany, which is applied to all the blocks except for the source 8 of the acoustic stimulus and the source 10 of the light stimulus, the control unit 1 embraces the first 14 and second 15 counters, the first 16 and second 17 registers, determines the initial frequency of the controlled master oscillator 2, switches the supply voltage to the source 8 of the acoustic stimulus and thereby prepares the passage of the acoustic information presentation mode. A controlled master oscillator 2 with each of its output signals triggers a generator 3 of a random time interval, which, in turn, triggers a generator of 4 random numbers. In addition, the output signal of the generator 3 of a random time interval records the unit at the first 14 counter and starts the countdown with the time measurement unit 12

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change the reaction. A random number through the decoder 5 n-bit code is fed to the input of the converter 6 codes. Here, the n-bit of the code premise is divided into two parts (for example, into two premises of the size n / 2), which are fed to the input of the controlled sound generator 7 and the input of the encoder 9, respectively. The controlled sound generator generates a constant audio frequency signal, the intensity of which is given by the code at its input. The encoder 9 with its output signal determines the nature of the presented light information, but no voltage is applied to the source 10 of the light stimulus and therefore only an acoustic stimulus is presented to the subject.

The subject in response to an acoustic stimulus acts on the receiver 11 responses. The signal from the output of the latter stops the response time measurement unit 12 and the time measurement result is recorded in the second register 17. The error extracting unit 13 compares the signal received from the response receiver 11 with the first part of the decoder code combination and writes the result to the second counter 15.

After a certain number of acoustic stimulus presentations (for example, 10), the first counter 14 outputs a signal to the control unit 1, which removes power from the source 8 of the acoustic stimulus and supplies it to the source 10 of the light stimulus. The device operates in a similar way with the only difference that the error extraction unit 13 is now equal to the signal received from the receiver 11 in response to the second part of the decoder code combination. After presenting a predetermined number of light stimuli (for example, 10), the signal from the first counter 14 of the control unit 1 energizes both sources of stimuli, thereby providing a simultaneous presentation of the acoustic and light stimuli of random content at a random time. The error extractor 13 now uses the entire length of the code pattern of the encoder 9 for comparison with the response signal from the receiver 11.

When the device is operating, memory unit 18 records information on the quantity and quality of stimuli presented (first counter 14) and first register 16) about the presence of errors (second counter 15) and about the response time to the stimulus (second register 17). The obtained information is processed by the computing unit 19 and in a convenient form for consideration is issued by the registration unit 20,

After presenting some (albeit, again 10) number of dissimilar stimuli

the control unit 1 removes power from the light stimulus source 10, zeroes the first 14, the second 15 counters, the first 16, the second 17 registers and increases the pulse frequency of the controlled signal, its gene

Ratio 2. Thus, the device is ready for operation in the first mode, but at an already higher rate.

15

Claims (1)

Invention Formula A device for psychological studies, containing a control unit, serially connected controlled master oscillator, random generator time intervals, random number generator and decoder, controlled sound generator, acoustic stimulus source, encoder, light stimulus source, response receiver, response time measuring unit, error highlighting unit, first and second counters, first and second registers, serially connected block memory, computing unit and registration unit, the first and second the inputs of the memory block are connected to the outputs of the first and second counters, respectively, and the third and fourth ones are connected to the outputs of the first and second registers, respectively, the output of the random interval generator time soy, zinen with the first input of the first counter and with the first input of the reaction time measurement unit, the second input of which is connected to the first output of the response receiver, the second output of which is connected to the first input of the error recovery unit, the output of which is connected to the first input of the second counter, output the reaction time measurement unit is connected to the first input of the second register; the output of the first the counter is connected to the input, the control unit, the output of the encoder to the first input of the source of the light stimulus, and the output of the controlled sound generator to the first input of the source of the acoustic stimulus, characterized in that in order to expand the field of application of the device the test subject, associated with the simultaneous processing of heterogeneous information specified randomly, a code converter is inputted, the input of which is connected to the output of the decoder, the first output is connected to the input of the control l emogo sound generator and the second encoder output .The inputs, a first output of block control unit is connected to the input of the controlled master oscillator and with the second inputs of the first and second counters and the first and second registers, the second output of the unit the control is connected to the second input of the source of the acoustic stimulus, and the third to the second input of the source of the light stimulus.