RU83908U1 - DEVICE FOR EVALUATING THE PSYCHOPHYSICAL STATE OF A HUMAN - Google Patents

Abstract

1. A device for assessing the psychophysical state of a person, including a light source for illuminating the eyes, a video camera with a microphone, an analog-to-digital converter connected to a computer, characterized in that it additionally includes a receiver of video and audio signals, an electronic key, a helmet for the subject, on which the battery is mounted, a movable telescopic tripod for fixing the video camera, the video camera contains a transmitter of video and audio signals, infrared illumination as a light source, while receiving video and audio output is connected to the input of the analog-digital converter, and the electronic switch is connected to the input of the computer. ! 2. The device according to claim 1, characterized in that the electronic key is a USB flash drive.

Description

The utility model relates to the field of legal psychology, criminology, forensic science, labor psychology, medicine, and can be used to diagnose a person’s functional state, to assess the emotional state, in production conditions, at home, for express diagnostics of drivers, as well as in investigative and judicial activity to study the reliability of the testimony of suspects, witnesses, victims.

A device for monitoring the movement of human eyes, including a device adapted to be worn on a person’s head, a radiation source for directing radiation to a person’s eyes while wearing a device, first and second optical fibers for transmitting images, comprising first ends fixed to the device, a first optical fiber for image transmission, located for viewing the first eye of a person wearing the device, a second optical fiber for transmitting images, located for viewing the second eye of a person century, wearing a device, a camera associated with the first and second harnesses to obtain images of the first and second eye (see application for utility model No. 2006138622, MPKA61 B3 / 113).

The disadvantages of the device include its bulkiness due to the presence of a system of fiber optic bundles.

A device for determining the trajectory of eye movements during saccadic movements of the gaze (see RF patent No. 2270598, IPC A61 B3 / 113). The device contains cup electrodes, a bi-signal strip amplifier, an analog-to-digital converter, a personal computer, a digital band-pass filter, a monitor screen, a hard magnetic disk, and a screen. To register electrooculographic potentials (EOG), two active electrodes are used, which are placed from the temporal sides of the test eye sockets at the pupil level. EOG was recorded during saccadic eye movements. In this case, the shift of the gaze left and right determined the polarity of the EOG. To describe the trajectory of the gaze, the amplitude α and the formation time t of the EOG, which occurs during the next saccadic eye movement, were measured.

The disadvantage of this device is the presence of electrodes for the periocular region of the subject, which can be a distraction during psychological tests.

The closest in technical essence to the proposed one is a device for studying the movement of the pupils of the eyes, including a light source for illuminating the eyes, a light diffuser, an optical-electronic converter based on a video camera with a CCD matrix, a rotary electromechanical measuring converter with pulse-code modulation, and analog a digital converter connected to a computer (see. Nystagmoscope. // Russian Scientific and Practical Conference "OPTICS AND SCIENTIFIC INSTRUMENT-2000" FTP "Integration". 29-30 ma is the 2000 / Abstracts - St. Petersburg:.. IFMO 2000 g.- 72)..

However, this device has a backlight in the optical range, which is unacceptable when recording changes in the diameter of the pupil. The device in question implements an algorithm for transmitting data based on analog-to-digital conversion, which does not allow measurements in real time.

The objective of this solution is to create a device for assessing the psychophysical state of a person capable of real-time analysis of eye movement parameters.

The technical result consists in increasing the reliability of psychological research by increasing the contrast of the image of the pupil, which is used to judge the psychophysical state of the subject.

This object is achieved in that in a device for assessing the psychophysical state of a person, including a light source for illuminating the eyes, a video camera with a microphone, an analog-to-digital converter connected to a computer, according to the solution, a video and audio signal receiver, an electronic key, a helmet for the subject are additionally introduced on which the battery is mounted, a movable telescopic tripod for fixing the video camera, the video camera contains a transmitter of video and audio signals, infrared illumination as a source light, while the receiver of video and audio signals output is connected to the input of the analog-to-digital Converter, and the electronic key is connected to the input of the computer.

The electronic key is a USB flash drive.

The device is illustrated by drawings, where in Fig. 1 is a diagram of the installation, in Fig. 2 is the result of the program: in the upper part is shown the pupil size curve when answering test questions (marked with numbers), in the lower part - questions

test with the corresponding serial numbers, highlighting the issues that caused the greatest change in pupil size,

Where

1 - the head of the subject;

2 - the eye of the subject;

3 - video camera with video and audio signal transmitter, microphone and infrared;

4 - movable telescopic tripod;

5 - helmet;

6 - battery;

7 - receiver of video and audio signals;

8 - analog-to-digital Converter;

9 - computer;

10 - electronic key (flash card).

A device for assessing the psychophysical state of a person consists of a helmet 5, on which 4 a video camera with a video and audio signal transmitter and infrared illumination and a microphone 3 is mounted using a movable telescopic tripod 3. A battery 6 is also attached to the helmet 5 for supplying the video camera 3. The device also has a video receiver and audio signals 7, which is connected to an analog-to-digital converter (high-speed video input board) 8 installed in the computer 9. The software part of the device for assessing the psychophysical state Human actions are placed, for example, on a flash card, which is an electronic key 10.

The device operates as follows.

Initially, a conversation is held with the subject, where his voluntary consent to assess the psychophysical state of a person and lie detection is clarified. Then a classic psychological test for motivation is carried out, where information on the level of motivation during the test is found out. The test subject is seated comfortably in a chair and a helmet 5 is put on his head. They turn on a computer 9, an analog-to-digital converter 8, a video and audio signal receiver 7, and a video camera 3. Run the frame-by-frame processing and recording of eye movement parameters 2 using the electronic key 10 (Fig. one). Using a movable telescopic tripod 4, the image of the eye 2 is adjusted so that the video camera 3 can record the maximum deviation of the pupil.

After adjusting the image of the eye, a stopwatch is installed in the program, for example, for 5 seconds, after which a device for assessing the psychophysical state

the person is ready to record the first answer to the test question. The launch is made by pressing the "Start" button on the program’s work panel, while at the same time they begin to ask a test question, the program automatically finds the geometric center of the eye pupil 2, and their coordinates are written to the array. Simultaneously with the processing, the program displays a curve of a change in one of the parameters of eye movement.

Consider the operation of the device also in the following example (figure 2). An example of a curve of a change in one parameter — the size of the pupil for one subject serving a correctional term in a colony — is presented. The abscissa shows the numbers of questions below:

1. What is your name Ivan?

2. All the good things you did were usually appreciated?

3. Do you consider working in an asset necessary and important?

4. Do you smoke?

5. Are most convicts credible?

6. Do you like work that requires personal responsibility?

7. Is compliance with regime and internal regulations necessary for everyone?

8. Are you a motivated person?

9. Most convicts deserve more ill-treatment?

10. Have you ever been used by your position for personal gain?

11. If others do not want to understand you, can you use force?

12. Do you see everyone through?

13. Is working an asset important?

14. Do you usually have resentment?

15. Do you trust prison staff?

16. In conflict with other convicts, will you contact the administration?

17. The fact that you are deprived of freedom. Do you blame yourself?

According to the graph in figure 2, it can be assumed that the questions under the numbers 2, 5, 14, 15 and 17 caused a greater physiological response for the subject than the rest. The response, in turn, may be associated with emotional experience or a lie.

When assessing the psychophysical state of a person, the psychologist observed the progress of the study. According to his conclusion, this prisoner has a crisis of mistrust in the administration of the colony and other prisoners, which is consistent with the data obtained using the device for assessing the psychophysical state of a person.

Claims (2)

1. A device for assessing the psychophysical state of a person, including a light source for illuminating the eyes, a video camera with a microphone, an analog-to-digital converter connected to a computer, characterized in that it additionally includes a receiver of video and audio signals, an electronic key, a helmet for the subject, on which the battery is mounted, a movable telescopic tripod for fixing the video camera, the video camera contains a transmitter of video and audio signals, infrared illumination as a light source, while receiving video and audio output is connected to the input of the analog-digital converter, and the electronic switch is connected to the input of the computer. 2. The device according to claim 1, characterized in that the electronic key is a USB flash drive.