Method for controlling control circuit logoff by live operator

FIELD: medicine.

SUBSTANCE: EEG frequency response is pre-determined by a period analysis in a highly-watchful live operator being involved in active visual-motor activities and in actual activities. Theta-, alpha- and gamma-wave count per second is measured. The derived values are compared. If the theta-, alpha- and gamma-wave count per second is stated to fall outside the values specific for high watchfulness, an EEG analyser converts a sequence of the values into a sensory signal and feeds a biofeedback-like warning signal automatically to state the control circuit logoff by the live operator.

EFFECT: method improves the accuracy of the control measurements enabling feeding the sensory signal in due time that is ensured by pre-determining a combination of highly-watchful EEG theta-, alpha- and gamma-wave frequencies.

1 dwg, 2 ex

 

The invention relates to medicine, in particular to occupational health and ergonomics and can be used to control the release of the human operator from the control loop.

Maintaining high performance, vigilance and error-free work of the operators in the system "human-engineering is a challenge due to the fact that according to statistics, from 30 to 80 percent of industrial accidents and disasters, traffic and flight accidents are caused by the "human factor". The most frequent cause of these incidents is the reduction, diversion, or loss of visual attention, i.e. episodes (including short-term) involuntary and unconscious man-operator from the control loop dynamic object.

Known methods and technical devices of control and vigilance, based on periodic (every 15-90 seconds) applying the operator (the operator, the driver of the vehicle) of the test signal, to which he must respond quickly to a specific action (button, lever, etc). In the absence of such a response device generates an alarm signal and/or change the parameters of the dynamic object (for example, includes a braking mode) [Vantsevich L. E. Locomotive device is and ensure the safe movement of trains and decrypting information data of their work. - M.: The Route, 2006. - 328 S.; WO 00/55000, 21.09.2000]. The disadvantages of these methods are relatively slow (at least 20 seconds), i.e. the impossibility to determine short-term (order of seconds) of the outputs of the human operator from the control loop, as well as additional information, the load on the operator, which, in addition, it distracts from the main activity.

Known another group of methods and devices for control and vigilance, based on continuous recording (monitoring) and automatic measurement of various physiological parameters of the human operator directly in the process of activity. When the settings of these parameters for some of the experimentally defined the limits of the operator signal, warning him of the coming of the "dangerous" functional state, as well as (optionally) can change the settings for a managed dynamic object [Review Rail Safety and Standards Board's (RSSB) response to the report by Quintec entitled 'Driver vigilance devices: systems review' 03 T024 Quintec 22 RPT Final Report Issue 01. 30th August 2002, Railway Safety, GB]. These methods do not create additional and distracting loads on the operator. However, the accuracy, speed and robustness of these methods depends critically on the nature of the detected physiological parameters.

So, when you use the as an informative indicator parameters galvanic skin reactions and/or skin resistance to determine the occurrence of a "dangerous" drowsy state operator requires at least 15-20 seconds. Therefore, short-term (order of seconds) episodes of the output of the human operator from the control loop of ways, based on the reception electric indicators are not defined. Moreover, fluctuating vigilance of the operator is considered such systems as the state of the activity. In addition, the parameters of the electric activity vary considerably not only in connection with changes in the functional state of the operator, but also depending on external conditions (primarily temperature and humidity) and the nature of the activities of the operator (the frequency and intensity of control actions) [patent RU 2025731, 30.12.1994].

When used as an informative indicator of the level of vigilance parameters of the oculomotor system (closing his eyes, the frequency of blinking, the speed of closing/opening of the century, the direction of the gaze and its frequency switching) [patent RU 2423070, 10.04.2009; patent RU 2444275, 10.03.2012] significant limitations of the methods are: operator wearing glasses (especially sun), head turns, posture changes, vibration, associated with features of the vehicle and the road surface. The performance of these methods (in force time characteristics measured characteristics) does not give the possibility to determine short-term (order of the ka units of seconds) of the outputs of the human operator from the control loop.

The best time resolution among physiological parameters (of the order of tens of milliseconds) are the parameters of bioelectrical brain activity in the electroencephalogram (EEG). In addition, there is clear proof that the amplitude and frequency of EEG parameters most accurately characterize the functional state of human rights in the continuum of sleep-Wake, and some of them are directly related to visual attention. Until recently, the use of EEG as an informative indicator of the level of vigilance of the human operator in real life conditions were difficult due to low noise immunity as recording equipment and traditional methods of EEG analysis. With the development of technology some of these limitations have been overcome and now there are several ways to determine the status of the human operator (usually in terms of alertness-drowsiness) on EEG parameters [patent WO 0044580, 03.08.2000; Program emulators on PC measuring devices; SmartCap Resource Internet, publ. 15.06.2010 http://www.radiomaster.net/news/view/699/].

The closest analogue of the present invention is a method of monitoring fatigue of a person with visual tracking by registering the amplitude-frequency characteristics of the wave alpha rhythm of the EEG che is oweka operator of the process activities and the definition of the first signs of visual fatigue when registering three consecutive waves of alpha-rhythm amplitude range from -3 dB to +6 dB [SU 1090341 from 07.05.1984].

However, this method has insufficient immunity, in addition, the appearance of fragments of the alpha rhythm may be associated not only with operator fatigue, which may produce a "false alarm".

The technical result of our proposed method of control the release of the human operator from the control loop is to increase the accuracy of involuntary episodes of the output of the human operator from the control loop dynamic object directly during the operation.

The technical result is achieved in that to control the release of the human operator from the control loop conduct continuous recording and automatic analysis of its electroencephalogram directly in the process activity in real time, while the pre-frequency analysis of electroencephalogram performed experimentally in a real-time method periadolescence analysis to determine the number of waves theta-, alpha - and gamma activities of the brain in the second state of high vigilance of the human operator on the model of visuo-motor activity, then the recording and analysis the electroencephalogram operator carried out directly during the actual activity, with automatic comparative analysis of values of the number of the ETA-, alpha - and gamma waves per second and when the output value combinations of the number of theta-, alpha - and gamma waves per second for the range of values characteristic of the state of vigilance of the human operator with the active hand-eye activity, EEG analyzer converts this data into sensory (acoustic) signal that controls in the automatic mode, the output state of the human operator from the control loop by type of biofeedback.

The method is as follows:

Example 1. In laboratory conditions, on the head of the test sensors (standard EEG electrodes) and attach them to the input device is a hardware-software complex for registration and analysis of electric brain activity (digital electroencephalograph). Then the subject is asked to perform a task that represents a simplified model of operator activity, namely to start a compensatory visual-motor tracking offset on the display screen point - "target", managed by a software simulator of dynamic object tracking, keeping the target within the image frame by using the pointing device (mouse or joystick). Offset "target" random act carried out by a software simulator object tracking. When the output of the "targets" outside "frame" the TEP-simulator object tracking generates an error signal, the amplitude of which is proportional to the magnitude of the error tracking. At the same time continuously record the electroencephalogram and automatically in real-time (on-line) analyze the frequency characteristics of theta, alpha and gamma activities of the brain tested using periadolescence analysis according to a previously described algorithm [Chayanov N. In., Iznik A. F. Electronic device for the automatic recognition of certain patterns in the electroencephalogram. Biol.science, 1979. No. 3. - S. 93-98].

Theta-activity - bioelectric component, representing the fluctuations of the potential with a frequency of 4 to 8 Hz (periods of oscillation from 125 MS to 250 MS, distributed in a random order). Alpha-activity - bioelectric component, representing the fluctuations of the potential with a frequency of from 8 to 12.5 Hz (periods of oscillation from 80 MS to 125 MS, distributed in a random order). Gamma-activity - bioelectric component, representing potential fluctuations with frequencies lying in the band above 40 Hz (periods of oscillation less than 25 MS, distributed in a random order). The ratio of theta-, alpha - and gamma-activities reflect the functional state of the brain.

Automatically the operator in a state of high vigilance of the human operator with the act the main visuo-motor activity every second measure the periods of the waves on the electroencephalogram and determine the number of theta, alpha - and gamma waves. Experimentally determined that the state of high vigilance test operator with the active visuo-motor activity corresponds to a combination of less than two theta waves, less than three alpha waves and more than ten gamma waves per second. When the output values of theta-, alpha - and gamma waves per second beyond that the EEG analyzer outputs a signal on the output of the human operator from the control loop by type of biofeedback.

The EEG of the subject, the signal detection state of the test operator and the error signal recorded on the hard disk of the hardware-software complex.

On the graph (Fig.1), illustrating the results of an experiment provides an example of the characteristic relationships between the functional state of the operator is determined by a combination of the number of waves, theta, alpha and gamma rhythms in the bioelectrical activity of the brain per second, and the quality of the error signal tracking (to simplify this chart shows the deviation of the "target" vertically only).

In this case for about 6 seconds from the beginning of the detector state of the operator the number of theta waves ranged from 2 to 6, the number of alpha waves ranged from 3 to 10, and the number of gamma waves ranged from 2 to 8 in each of the 6 seconds that led to the emergence of the rings the La release the operator from the control loop. At the end of the episode release the operator from the control loop in every second in EEG test operator was determined not more than one theta waves, no more than two alpha waves and from 15 to 30 gamma waves.

The graph shows that the signal detection state of the operator (exit loop) ahead of the appearance of the error signal tracking (in this episode - about 2 seconds).

Moreover, the graph illustrates that during an episode of the operator from the control loop it is impaired hand-eye coordination, resulting in the control action of the operator after the end of this episode, designed to adjust suddenly realized their error tracking is not only disproportionate, but the wrong direction. In the result, the tracking error initially increases rapidly and then becomes zero. In relation to driving, this would mean that the driver some time (this episode is about 6 seconds) was driving, not paying attention and not reacting to the changing road conditions, and then sharply turned the wheel the wrong way, or braked, or instead of the brake pedal pressed down on the gas pedal.

Example 2. In real conditions driving an experienced operator-driver wears headgear (helmet or tennis ribbon), in which is mounted sensors (EEG electrodes), connected to the input of a portable ("Holter" type) hardware-software complex for registration and analysis of theta-, alpha - and gamma-activity of the brain. Pre-frequency analysis of electroencephalogram operator carried out experimentally in a real-time method periadolescence analysis to determine the number of waves theta-, alpha - and gamma-activities brain per second in the state of high vigilance on the model of visuo-motor activity, then check and automatic periadolescence analysis of the electroencephalogram operator carried out directly during the actual activity - for example, in this case while driving. Values of the number of waves theta-, alpha - and gamma-activities outside the above experimentally certain limits, is converted to the touch (acoustic) signal in the automatic mode controls the output state of the operator-driver from the control loop by type of biofeedback. To do this, use built-in hat miniature loudspeaker, through which an audio tone signal from the detection state of the operator, warning the driver about dangerous output of the control circuit of the vehicle.

According the Tonto driver after a few hours (4-5 hours) of continuous driving, as in city traffic and on long-distance highway audible warning signal detection state of the operator was applied only in situations unconscious driver output from the control circuit. This was evidenced, for example, in dangerous proximity to the vehicle in front, in situations distraction from driving (for example, read roadside advertising, surrounding the road landscape with a mental representation of the missing details on configuring the radio to work with a cellular phone or Navigator), as well as short-term "blinding" the driver's bright light (during the day - at the exit of a tunnel, at night the headlights of oncoming cars). In all these cases, the values of the numbers theta-, alpha - and gamma waves per second go beyond the values of the numbers characteristic of the state of vigilance of the operator-driver with active visuo-motor activity, and the driver said intermittent episodes of output from the control circuit of the vehicle, which indicates the absence of "false alarms". Long-term outputs of the control circuit, dangerous from the point of view of occurrence of the accident, was not noted, and, in the opinion of the driver, it was promoted warning signals EEG detection state of the operator.

Thus, the proposed the first method allows you to define episodes of involuntary exit of the human operator from the control loop dynamic object with high speed (no more than 1 second) and even before the real operation errors. It is important to note that such episodes are not always associated with a state of drowsiness or sleepiness.

The method is based on modern, experimentally proven scientific data about the functional value of the bioelectrical activity of the brain and the principles of processing of visual sensory information [Guselnikov, C. I., Isnac A. F. Rhythmic activity in sensory systems. M.: Izd-vo MGU, 1983]. As informative parameters are the results of the automatic (real-time) analysis of brain potentials of the human operator. To maintain a high level of vigilance of the human operator uses the technique of acoustic EEG due to biofeedback.

The practical implementation of the method at the present level of biomedical electronics and information and communication technologies is not a problem. When using the so-called "active" ("dry") EEG-electrodes method is non-invasive as it does not require contact of gels or liquids.

The method can be used in technical systems define and maintain a high level of attention, vigilance and health operators, managers of different means of transport (pilots, drivers, drivers), as well as "critical" those whom ology (for example, managers of transport and energy systems).

The way to control the release of the human operator from the control loop, including continuous recording and automatic analysis of the electroencephalogram during real activity, wherein the pre-frequency analysis of electroencephalogram performed experimentally in a real-time method periadolescence analysis to determine the number of waves theta-, alpha - and gamma activities of the brain in the second state of high vigilance of the human operator with the active visuo-motor activity, then check and automatic periadolescence analysis of the electroencephalogram operator carried out directly during the actual operation, with automatic comparative analysis of the values of theta, alpha - and gamma waves per second, and when the output values of theta-, alpha - and gamma waves per second for a range of values of numbers that are characteristic of the state of vigilance of the human operator with the active hand-eye activity, EEG analyzer converts the combination of these numbers in the touch signal, and supplies in the automatic mode, a warning signal according to the type of biological feedback about the output state of the human operator from the circuit pack is Alenia.



 

Same patents:

FIELD: sports.

SUBSTANCE: circle is shown to the subject on the video-monitor screen, on which a label is placed and the point object moving along the circle. On the first stage the period of turnover T of the point object along the circle is set in a sequence equal to 2.0; 1.7; 1.5; 1.3; 1.1; 0.9 and 0.7 seconds. At each period T in time of the supposed matching the position of the moving point object stops the movement of the point object along the circle with the given number of times by pressing the "Stop" button. Then the error of mismatching the point object and the label is calculated - the time of trailing error with a positive sign or anticipation with the negative sign, and after the specified time the motion of the point object along the circle is renewed. For each period T the estimate of the reaction time t of the subject to the moving object is calculated as the arithmetic mean by the formula where ti is trailing i-error value or the absolute value of the anticipation error, ms; n is the number of stops of the point object in the label position area. Then the curve of a function t=f(T) is plotted, on the curve the zone of permissible values of reaction time t of the subject to the moving object is marked, corresponding to the value of the response time of the turnover period T of the point object along the circle, equal to 2.0 s. The maximum speed of physical actions of the subject is taken as corresponding to the minimum period Tmin of turnover of the point object along the circle, when the value of the reaction time t of the subject to the moving object is in a permissible zone. On the second stage the period T is set equal to Tmin, the variation series of mismatch errors of the point object and the label is created - the time of trailing errors with a positive sign or anticipation with a negative sign, the variation range of the series is calculated by the formula R=tmax-tmin, where tmax and tmin is respectively the largest and the smallest members of the variation series, ms, and on the number line the segment is marked, bounded by the largest and the smallest members of the variation series. Selection is carried out based on the smallest value of the zone of permissible values of reaction time t of the subject to the moving object, the smaller turnover period T of the point object along the circle, when the value of the reaction time t of the subject to the moving object which is in the permissible zone, the smaller value of the variation range R of mismatch errors of the point object and the label with the turnover period Tmin of the point object along the circle; by location on the number line of the segment bounded by the largest and the smallest members of the variation series of mismatch error of the point object and label with the turnover period Tmin of the point object along the circle closest to the symmetry with respect to the zero point.

EFFECT: method enables to set different period of the point object motion along the circle, and to select the teenagers to practice competitive sports by determining the speed and accuracy of physical actions, thereby improving the accuracy of selection.

10 dwg, 3 tbl, 2 ex

FIELD: sports.

SUBSTANCE: circle is shown to the subject on the video-monitor screen, on which a label is placed and the point object moving along the circle. The period of motion of the point object along the circle is set sequentially equal to 2.0; 1.7; 1.5; 1.3; 1.1; 0.9 and 0.7 seconds. At each period of turnover of the point object along the circle at the time of the supposed coincidence of position of the moving point object with the label the subject stops the movement of the point object along the circle with the given number of times by pressing the "Stop" button. Then the error of mismatching the point object and the label is calculated - the time of trailing error with a positive sign or anticipation with the negative sign, and after the specified time the motion of the point object along the circle is renewed. For each period of the turnover of the point object along the circle the estimate of the reaction time t of the subject to the moving object is calculated as the arithmetic mean by the formula t=i=1nti/n, where ti is trailing i-error value or the absolute value of the anticipation error, ms; n is the number of stops of the point object in the label position area. Then the curve of a function t=f(T) is plotted, on the curve the zone of permissible values of reaction time t of the subject to the moving object is marked, corresponding to the value of the response time of the turnover period of the point object along the circle, equal to 2.0 s. The maximum speed of physical actions of the subject is taken as corresponding to the minimum period of turnover of the point object along the circle, when the value of the reaction time of the subject to the moving object, which characterises the accuracy of its physical actions, is in a permissible zone. Accuracy of physical actions is evaluated according to the size of zone of permissible values of the reaction time of the subject to the moving object.

EFFECT: method enables to set different period of the point object motion along the circle, and to determine the maximum speed of physical actions of the athlete in playing sports, when their accuracy is maintained by instrumental measurements.

6 dwg, 3 tbl, 3 ex

FIELD: medicine.

SUBSTANCE: person being tested is presented with a circle, which comprises a mark and a point object, on a monitor screen. The point object moves at a preset speed around the circumference; at the moment the moving point object and the mark are supposed to converge, the individual presses the Stop button to stop the circular motion of the moving point object. After a preset time, the motion of the point object is reactivated. The described procedure is repeated for the preset number of times; after stopping the circular motion of the point object, a deflection of the point object from the mark is evaluated. The time of the individual's response Tr to the moving object is evaluated as an arithmetic mean value by formula

wherein ti is the i-th deflection of the point object from the mark, ms; n is the number of stops of the point object in the area of the mark.

EFFECT: method enables providing the more reliable evaluation of the time of the individual's response to the moving object ensured by the fact that the time of delay or advance error is accepted as deflections of the stopped moving object from the mark and taken with a positive sign.

5 dwg, 2 ex

FIELD: medicine.

SUBSTANCE: before a dental intervention, tests are used to determine a degree of the patient's psychoemotional stress and psychophysiological state, and to measure pulse before the first test (P1), between the tests (P2) and after the second test (P3). A mild degree of the psychoemotional stress, the stable psychophysiological state in a combination with a difference of P3 and P2 no more than 15 beats per minute as compared to a difference of P2 and P1, the psychoemotional state is considered to be stable, and the patient is stated to be ready to the dental intervention. A moderate degree of the psychoemotional stress, the borderline psychophysiological state in a combination with a difference of P3 and P2 no more than 15 beats per minute as compared to the optimum state with a difference of P2 and P1, the psychoemotional state is considered to be labile, and the relaxation measures are stated as necessary before the dental intervention. A severe degree of the psychoemotional stress, the unstable psychophysiological state in a combination with a difference of P3 and P2 more than 15 beats per minute as compared to a difference of P2 and P1, the psychoemotional state is considered to be unfavourable for the dental intervention to be postponed.

EFFECT: method enables the rapid assessment of the patient's psychoemotional state before the dental intervention.

3 ex

FIELD: medicine.

SUBSTANCE: single-step testing of white rats is carried out in an open field facility. The total length of locomotion, sniffing, and sitting actions as well as the number of upright postures and freezing acts are recorded. Prognostic coefficients F1 and F2 are determined by formulas and compared. If F2 is more than F1, cognitive disorders are stated in experimental animals, and if F1 is more than F2, the above are stated to be absent. That is followed by calculating a prognostic index (PI), which is used to determine an intensity of the cognitive disorders: low, moderate and high.

EFFECT: method enables detecting the presence of the cognitive disorders in the rats by using the values of motor and investigatory activity and anxiety.

2 cl, 2 tbl, 4 ex

FIELD: medicine.

SUBSTANCE: invention refers to medicine, namely to preventive medicine, and aims at detecting young individuals suffering from a high risk of cardiovascular diseases for the timely correction. The individuals are presented with a questionnaire to detect major risk factors of the cardiovascular diseases in accordance with the National Cardiovascular Disease Prevention Guidelines. The questionnaire results are appraised by points: if observing psychological stress 3.01-4 for males and 2.83-4 for females, 0 points are assigned; 2.01-3 for males and 1.83-2.82 for females, 1 point is assigned; 2 and less for males and 1.82 and less for females, 2 points are assigned; if the respondent doesn't smoke, 0 points are assigned; if he/she smokes less than 1 cigarette a day, 1 point is assigned; smoking 1 and more cigarettes a day implies assigning 2 points; if the patient intakes ethanol in an amount of 13.7 g a day and less, 0 points are assigned; an intake of ethanol in an amount of 13.8 g to 27.4 g a day and less enables assigning 1 point; using ethanol 27.5 g and more requires assigning 2 points; if blood pressure is less than 129/84 mm Hg, 0 point is assigned; if the blood pressure value falls within the range of 130-139/85-89 mm Hg, 1 point is assigned, and 2 points are assigned, if the blood pressure value is 140/90 mm Hg or more; if a body weight index is 24.9 kg/m2 and less, 0 points are assigned; if the range is 25-29.9 kg/m2, 1 point is assigned; the value of 30 kg/m2 provides assigning 2 points; if the physical activity is accompanied by energy burning of 3 MET/min and more over six late months and more, 0 points are assigned; the physical activity accompanied by energy burning of 3 MET/min under six late months, 1 point is assigned; if the physical activity is accompanied by energy burning of less than 3 MET/min, 2 points are assigned; if the individual consumes more than 500 g of vegetables and fruit a day, 0 point is assigned; consuming less than 500 g provides assigning 1 point, and if a daily ratio contains no fruit and vegetables, 2 points are assigned; if a rest heart rate is 50 to 69 beats per minute, 0 points are assigned; the heart rate falling within the range of 70 to 79 beats per minute provides assigning 1 point, and the heart rate of 80 beats per minute and more ensures assigning 2 points; a negative past medical history of the cardiovascular diseases with manifested ischemic heart disease or cardiovascular diseases in the male relatives in the first degree aged 55 years old or less and in the female relatives in the first degree aged 65 years old or less shows assigning 0 point, while a positive past medical history of the cardiovascular diseases makes it possible to assign 1 point. The total score is derived, and if the calculated value is 8 points and more, the respondent is referred to a group of a high risk of cardiovascular diseases, and preventive measures are recommended.

EFFECT: method enables evaluating a risk of cardiovascular diseases in the young individuals by evaluating the risk factors.

1 tbl, 1 ex

FIELD: sports.

SUBSTANCE: circle on the monitor screen is presented to the subject, on which a mark and a point object is placed. The point object moves at a predetermined speed along the circle. The testee stops the movement of the point object along the circle at the time of the proposed coincidence of its position with the mark by pressing the "Stop" button. Then the mismatch error of the point object and the mark is calculated. This is the time of trailing error with a positive sign or anticipation with a negative sign. After the predetermined time, the motion of the point object along the circle is resumed. The described procedure is performed the specified number of times. The order statistics of mismatch errors of the point object and marks is created. The range of the order is calculated by the formula: R=tmax-tmin. The ratio of the largest member of the order statistics tmax to the range R is calculated, multiplied by 100. The maximum absolute value of the prediction error |tpred.max| is determined. The lower quartile (25% quantile) of the maximum absolute value of the prediction error |tpred.max| is calculated. The percentage P of the absolute values of the prediction errors is determined, which are in the lower quartile of the maximum absolute value of the error |tpred.max|. Rating P is calculated as the reciprocal number of the arithmetic mean of the range R, the ratio of the largest member of the order statistics tmax to the range R, multiplied by 100, and the percentage Per of the absolute values of prediction errors which are in the lower quartile of the maximum absolute value of the prediction error |tpred.max|, multiplied by 100, according to the formula: P=100×1/(R+100×tmax/R+Per)/3=300/(R+100tmax/R+Per). The testee who has a higher rating is regarded as the most promising and able to show better results in upcoming competitions.

EFFECT: increasing reliability of determining the rating of combat athletes by evaluating the ratio of excitation and inhibition that characterises the speed capabilities and accuracy of motor actions.

10 dwg, 3 ex

FIELD: medicine.

SUBSTANCE: invention refers to sports medicine and aims at assessing a playing sportsman's physical actions accuracy. A sportsman being tested is presented a circle on a display with a mark and a point object moving at a specified speed round the circle. The sportsman being tested follows the point object travelling and stops it moving round the circle by pressing a Stop button once seeing an assumed matching of the moving point object and the mark. That is followed by calculating a matching error of the point object and the mark - a lag time with a positive sign or a lead time with a negative sign, and proceeding with moving the point object round the circle after some time. The sportsman being tested performs the described procedure for the specified times; a static series of the matching errors of the point object and mark is plotted; a range of the series is calculated, and a segment limited by the greatest and smallest members of the static series is marked on a number line. The physical actions accuracy of the sportsman being tested is assessed by a numerical line position of the segment limited by the greatest and smallest members of the static series of the matching errors of the point object and mark closest to a symmetry of a relatively zero point and the smallest value of the range of the matching errors of the point object and mark.

EFFECT: method enables providing the more reliable assessment characterising the playing sportsman's physical actions accuracy by instrumental measurements.

12 dwg, 4 ex

FIELD: medicine.

SUBSTANCE: invention refers to medicine and can be used for the correction of gynoid obesity. That is ensured by typing an eating disorder to be psychologically corrected. A diet therapy is prescribed with a caloric value determined by reducing a patient's habitual daily average caloric requirement per a percent equal to the patient's body weight index. That is combined with a low-carbohydrate diet with the carbohydrate content reduced to 40-60 g/day for 2 weeks. That is followed by prescribing a low-fat diet with the fat content reduced to 40-60 g/day for 10 weeks with avoiding fast assimilated carbohydrates having a glycaemic index of more than 50. The diet therapy cycle is repeated. That is combined with graduated aerobic physical exercises with no weight and resistance for the muscle groups of the lower body. There are also performed muscle-strengthening load exercises for the muscle group of the upper body promoting muscle fatigue. Between and after the graduated physical exercises, there are performed prolonged aerobic physical loads at least 5 days a week for 40-60 minutes. That is combined with the drug-free procedures aiming at improving the regional blood flow, increasing gluteofemoral and lower extremities muscle tonus. The low-fat diet involves administering health aids from the group of intestinal membrane-bound alpha-glucosidase and pancreatic alpha-amylase inhibitors. The course of the obesity correction involves administering catechin-containing preparations or biologically active additives. From the second month from the beginning of the obesity correction, the patient's face is exposed to full-spectrum natural or artificial light at intensity of not less than 2,000 lux for 1-2 hours a day simultaneously or alternatively with the physical loads.

EFFECT: method provides the effective weight reduction in the patients with gynoid obesity with reducing side effects.

5 cl, 8 tbl, 2 ex

FIELD: medicine.

SUBSTANCE: invention refers to medicine, forensic medicine, diagnostic measurements, including in investigative practice. An interactive psychophysiological testing (PPT) involves presenting a person being tested test questions, determining, analysing the psychogenesis parameters with using the person's physical parameter sensors, indicating the results and estimating. The test questions are typed as follows: first-version questions Q1, second-version questions Q2, neutral questions N. The questions Q1 and Q2 have an alternative meaning and equal power and are characterised by an equal presentation time, a consistency of comparing the questions according to the alternative versions, a minimised subjective personal effect of the PPT test expert by sound colour and level, an unconscious emotional support on the person's question perception, as well as an identity of putting the questions to be compared, their length and a fixation of the meaningful word and/or word combination in similar segments of both questions to be compared. The test is put in accordance with a concatenation as follows X:0→C,…,C→Q11.Q21→N→ →Q21.Q22→N→…→Q1n.Q2n→N, wherein X is a person's identification index; 0 is a non-estimated zero question; C is a question relieving an expectation stress; Q1i is the first-version question, wherein i=1, 2,…, n; Q2i is the second-version question, wherein i=1, 2,…, n; N is a neutral question; n is a number of specific circumstances of the event or action; ":", "→", "." are devisors. The questions are put taking into account the staging of the tested event, including the confirmed facts or data only and excluding the expert's conjectures or versions. The results are used to state one of the two alternative versions and to estimate the respective status of the person being tested. The psychogenesis is determined and analysed with using a polygraph, while putting the questions of the two alternative versions, indicating and processing the PPT data are conducted with a computer with relevant software.

EFFECT: method provides higher information value, accuracy, reliability, objectiveness of the PPT results as compared to the previously known tests up to 90-95% with avoiding the distortion and ambivalence of the results.

5 cl, 1 dwg

FIELD: medicine.

SUBSTANCE: recent comatose condition is detected; magnetic resonance imaging shows centres of cerebral structural changes; electroencephalography shows epileptiform activity, diffuse sharp waves, spikes, reduced complexes, high-amplitude low activity paroxysmal events, frequent paroxysmal events of 'peak-slow wave' and 'spike-slow wave' complexes. The EEG also shows irritant activity, local transient high-frequency beta-activity, advanced transient low-amplitude and advance continuous long-term high-amplitude activity. The presence of an aetiological agent of the disease caused by tick-borne encephalitis or the presence of encephalitis of other and uncertain aetiology is stated. The derived data are scored depending on the presence, absence and manifestations thereof. The derived data are used to calculate linear classification functions and to detect the favourable (LCF1) outcome of encephalitis without symptomatic epilepsy (SE) progression and the unfavourable (LCF2) outcome of encephalitis with SE progression. If LCF1>LCF2, the encephalitis outcome without SE progression is predicted, while LCF2>LCF1 shows the unfavourable outcome with SE progression.

EFFECT: method provides more reliable assessment of the SE progression in encephalitis that is ensured by taking into account additional EEG data and calculating the linear classification functions.

2 ex

FIELD: medicine.

SUBSTANCE: invention refers to medicine, namely to neonatology and neurology. During a 300-second slow sleep recording, transitory patterns are recovered on the EEG: frontal sharp waves of an average duration of 0.13 seconds, spike acute waves of an average duration of 0.045 seconds, high-amplitude PTӨ-waves of an average duration of 0.1 seconds, STOP-wave patterns of an average duration of 0.1 seconds. Indices (K) are calculated for each pattern in percentage, as a relation of the number of patterns of 300 seconds multiplied by its average duration to the recording duration (300 seconds). If K of the most patterns determined is less than 1, a physiologic norm is diagnosed; K falling within the range of 1-2 shows a moderate neurophysiologic immaturity; and if K is more than 2, major disturbances of the electrobiologic brain activity are stated.

EFFECT: method enables assessing the electrobiologic brain maturity of newborns of different gestational age that is ensured by determining and considering the transitory age-related patterns in the EEG.

4 dwg, 3 ex

FIELD: medicine.

SUBSTANCE: invention refers to medicine, namely to psychiatrics. In addition to the clinical study, an electroencephalography coherence analysis is conducted within the range of 30-45 Hz before psychotropic agents are prescribed. That is followed by determining middle zonal indices of the left and right hemispheres calculated between the midtemporal and following cortical regions: frontal, central, parietal, occipital, anteriofrontal and posteriofrontal in the homolateral direction. A hemispheric asymmetry factor (HAF) is calculated by dividing the middle zonal index of the left hemisphere by the middle zonal index of the right hemisphere. If the HAF value is less than 1, paranoid schizophrenia is diagnosed; and the value more than 1 shows schizo-affective disorder.

EFFECT: technique enables providing the more reliable differential diagnostics that is ensured by determining the zonal indices of the right and left hemispheres to calculate the hemispheric asymmetry factor.

2 ex

FIELD: medicine.

SUBSTANCE: invention refers to medicine, namely to psychiatrics. A clinical examination is combined with recording an electroencephalogram (EEG); its spectral and coherent analyses are carried out. The following values are determined: T6-AA-lead power spectrum within the range of 3.5-5 Hz, F7-AA-lead power spectrum within the range of 2-3 Hz, T5-AA -lead power spectrum within the range of 23-24.5 Hz, hemispheric power asymmetry between F8-AA and F7-AA-leads within the range of 24.5-26 Hz, P4-C4-lead coherence within the range of 8-13 Hz, T4-F8 within the range of 23-24.5 Hz, T3-F7-lead power spectrum within the range of 26-27.5 Hz, T5-O1 within the range of 17-18.5 Hz, T3-F8 within the range of 20-21.5 Hz. Logarithms of the derived values are calculated. An integral diagnostic value is determined by mathematical formula taking into account the calculated logarithm and coefficient-corrective values. If the integral diagnostic value appears to be positive, a recurrent depressive disorder is diagnosed, while a bipolar affective disorder is shown by the negative integral diagnostic value.

EFFECT: method enables providing higher diagnostic reliability at the early stages of the disease that is ensured by the optimum selection of the values, and the mathematical calculation of the integral value.

2 ex

FIELD: medicine.

SUBSTANCE: invention refers to medicine, labour safety, vocational selection of rescue workers. The invention can be used for vocational selection in the sectors of industry using personal protective equipment, as well as for the workers labour safety in the sectors of industry with harmful working conditions. The method involves vocational selection and duty control on the basis of electroencephalogram (EEG) values and cardiological findings. The examination is performed prior to and when using the personal protective equipment. The cardiological examination involves assessing the heart rate variability with using the amplitude-frequency spectrum Fourier analysis VLF at a vibration frequency within the range of 0.0033-0.04 Hz, LF - at a frequency of 0.05-0.15 Hz and HF - at a frequency of 0.16-0.80 Hz, and is five-staged: initial resting state, mental work load, recovery of mental work load, hyperventilation load, recovery of hyperventilation load. At the beginning, the heart rate variations and EEG are examined prior to using the personal protective equipment. If any of the five stages of the heart rate variation examination shows the pulse more than 90 beats per minute, as well as changes from the normal values of: approximating entropy - less than 180, LF - less than 6 point, an alpha wave amplitude - to 12 vibrations per second and the presence of the paroxysmal activity by EEG, the prevailing sympathetic nervous system is stated, or if any stage of the heart rate variation examination shows the pulse less than 60 beats per minute, as well as changes from the normal values of: blood pressure - more than 140/90 mmHg, VLF - more than 130 points, HF - more than 16 points, an alpha wave amplitude - less than 25 mcV, the prevailing parasympathetic nervous system is stated; a low level of adaptation to the personal protective equipment is predicted, and a rescue work is not recommended during the vocational selection; the examination is terminated. If the heart rate variation and EEG prior to using the personal protective equipment fall within the normal values, the heart rate variation when using the personal protective equipment is started with the patient examined when using the personal protective equipment and performing a cycle ergometer test, and recording the hyperadaptotic changes of the assessed values: VLF - more than 130 points in relation to the normal value when using the personal protective equipment and LF and HF vibrations; an incomplete or unfinished adaptation to the personal protective equipment, and the rescue worker is suspended from work for several hours; if VLF is more than 130 points recorded 10-15 min after activating the personal protective equipment, a good adaptation level to the personal protective equipment is predicted.

EFFECT: method enables assessing the vegetative nervous function and predicting the rescue workers' adaptation level to the personal protective equipment.

11 tbl, 5 ex

FIELD: medicine.

SUBSTANCE: patient is trained by challenging to imagine a paretic limb movement and controlling the imagined movement. An electroencephalography is recorded; the recorded data are transferred to a computer for synchronous processing, and arousal reaction signals of a sensorimotor rate responsible for the imagined movement are isolated by means of an EEG pattern classifier according to the Bayes method. Identification results of the mental challenge are presented to the patient by a visual feedback in the form of a mark on a monitor. The mark re-position testifies to accuracy of the challenge. The imagined movement challenge is presented for 10 seconds. The training course makes 6-12 days, one training a day, of the length of 20-30 minutes every 1 to 4 days.

EFFECT: method provides more effective rehabilitation that is ensured by the feedback training in the conditions enabling the patient controlling the imagined paretic limb movement visually.

3 dwg, 4 tbl, 2 ex

FIELD: physics.

SUBSTANCE: method includes rendering an image which creates a depth and volume effect (IDE); detecting electrical activity (EEG) of the brain for white sheet (IWS) rendering and for image IDE rendering; calculating the sum of the overall coherence amplitude on all derivations and components of EEG rhythms, first for IWS rendering (Σ(CHАIWS)), and then for image IDE rendering (Σ(CHАIDE)). If the value Σ(CHАIDE) is greater than Σ(CHАIWS) by 1.8 times or more, the capability for three-dimensional sensing of flat images is determined.

EFFECT: method enables to obtain an objective evaluation of the capability for three-dimensional sensing of flat images, which is achieved owing to use of coherent EEG analysis.

2 dwg

FIELD: medicine.

SUBSTANCE: invention refers to medicine, and may be used in occupational pathology. Person's open eyes are exposed to a white light of a colour temperature varying within the range of 1700 K - 10000 K. An electroencephalogram is recorded; its spectral analysis is performed to state the effect to be activating as shown by a power spectrum of alpha and theta waves reducing by more than 25% of background values.

EFFECT: method enables an individual selection of a colour temperature having the activating effect.

2 tbl, 2 ex

FIELD: medicine.

SUBSTANCE: invention refers to medicine and may be used for assessing the light exposure generated by a light-emitting-diode source on the functional status of human brain cortex. The white light exposure covers individual's open eyes at colour temperature 1700-10000 °K, illumination 80-300 lx at the eye level. That is followed by electroencephalogram recording and spectral analysis. If observing an increase or a decrease of alpha or teta wave spectral power by more than 25% of a baseline value, the light exposure is considered to be physiologically active, and by less than 25% - as physiologically neutral.

EFFECT: method provides more reliable assessment of the functional status of human brain that is ensured by biological activity rating within the alpha and teta wave range.

4 tbl, 4 ex

FIELD: chemistry.

SUBSTANCE: invention refers to medicine, and may be used for changing the functional status of an individual. The individual's open eyes are exposed to white light at colour temperature 1700 °K or 10000 °K, at lighting intensity 200 lx at the eye level. That is followed by electroencephalogram recording and spectral analysis. If an alpha wave spectral power increases by more than 50%, while a teta wave spectral power increases by more than 25% of a baseline value, the effect is considered to be relaxant.

EFFECT: method enables assessing the action of colour temperature individually that can cause the relaxant effect on an individual.

2 tbl, 2 ex

FIELD: medicine, neurology, psychopathology, neurosurgery, neurophysiology, experimental neurobiology.

SUBSTANCE: one should simultaneously register electroencephalogram (EEG) to detect the level of constant potential (LCP). At LCP negativization and increased EEG power one should detect depolarizational activation of neurons and enhanced metabolism. At LCP negativization and decreased EEG power - depolarized inhibition of neurons and metabolism suppression. At LCP positivation and increased EEG power - either repolarized or hyperpolarized activation of neurons and enhanced metabolism. At LCP positivation and decreased EEG power - hyperpolarized suppression of neurons and decreased metabolism of nervous tissue. The method enables to correctly detect therapeutic tactics due to simultaneous LCP and EEG registration that enables to differentiate transition from one functional and metabolic state into another.

EFFECT: higher accuracy of diagnostics.

5 dwg, 1 ex, 1 tbl

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