Psychophysiological Functions Research Articles

Knowledge, Attitude and Perception about Neurodevelopmental Disorder among Pregnant Women: A Cross-sectional Study

Introductuion: Neurological Developmental Disorders (NDD) reflects disruptions of neuroanatomic structure or psychophysiological function and place a child at-risk for developmental, cognitive, emotional, behavioural, psychosocial and adaptive challenges. The common NDD are Attention Deficit Hyperactivity Disorder (ADHD), Autism Spectrum Disorder (ASD), Tics disorder, Intellectual disabilities, Specific Learning Disorders (SLD), Motor disorders and communication disorders. The purpose of the study was in agreement with the literature overviewed, which suggests, the prevalence of NDD is high in children. Complications that happen during the antenatal or perinatal period, and the awareness of the same in pregnant women is significantly low. Aim: To know about the knowledge, attitude and perception of NDD among pregnant women. Materials and Methods: This cross-sectional study was conducted at Dr DY Patil College of Physiotherapy, Pimpri, Pune from September 2020 to February 2021 on pregnant women with informed and voluntary consent. A total of 200 primigravida women were included and women with complicated pregnancy were excluded. A self-constructed questionnaire was prepared and administered. It had three domains of total 21 items- the knowledge domain with 8 questions, the attitude domain with 7 questions and the perception domain with 6 questions. Descriptive statistics were used to analyse the results. Results: Total 200 women were included, mean age was 25.6±2 years. A 24% of the women had heard about the term NDD and only 13% of them knew its meaning. Attitude of pregnant women where 79.5% were aware about infections, use of drugs and alcohol and smoking during pregnancy can lead to harmful effects on the foetus. Perception of NDD, where 84% women believed that good health of the mother during pregnancy can prevent NDD, 91.5% believed that a proper diet and nutrition during pregnancy plays a role in prevention. Conclusion: The study concluded that, only 24% have ever heard of the term NDD and only 13% were aware of the meaning of it. While 79% of the pregnant women knew about the importance of antenatal care, significantly less pregnant women had knowledge about NDD and only few of them were aware about the possible signs of NDD.

НЕЙРОПСИХОФІЗІОЛОГІЧНЕ ОБСТЕЖЕННЯ ЯК ДОДАТКОВИЙ ІНСТРУМЕНТ ПІДВИЩЕННЯ НАДІЙНОСТІ ТА ЕФЕКТИВНОСТІ ПРОФЕСІЙНОГО ВІДБОРУ

Despite such a wide and comprehensive psychological and psychophysiological examination of recruits in modern professional selection systems both in the armies of NATO countries and Ukraine, the effectiveness of the process is insufficient. To identify the reasons for the insufficient prognostic effectiveness of modern psychophysiological methods, a study was made of the variability in the organization of brain structures to ensure the speed of a simple sensorimotor reaction (PSMR) of a high level as a basic characteristic of the functional state of the central nervous system. As a result of a survey of 54 servicemen of different specialties, it was found that the same indicators of the state of psychophysiological functions are provided by different strategies for their implementation. Electroencephalograms were recorded when military personnel performed a computer test to determine the speed of PSMR. It was revealed that at approximately the same rate of PSMR, different brain structures were activated in servicemen. Since the same PSMR value can be realized by different neural networks, what we do not detect during psychophysiological testing, but later on under stress, load, etc. military personnel may exhibit different behavioral strategies. Such types of behaviour make it possible to achieve the best results in various types of activity and correspond to the profiles of different military specialties, and vice versa, it can be assumed that neural networks of approximately the same type can implement somewhat different indicators of psychophysiological functions. The same psychophysiological profile can correspond to different profiles of military specialties and vice versa, several psychophysiological profiles can correspond to one specialty, since approximately the same values of psychophysiological functions can be realized by different neural networks. Therefore, psychophysiological testing should be supplemented with neurophysiological testing, since it allows revealing the internal features of the organization of the brain and predicting the further behavior of servicemen.

The study of the effect of mono- and polymalt extracts on the psycho-physiological functions of outbred rats in an experiment with course consumption

The search for natural ingredients that have a certain nutritional value and contribute to the preservation of human health is a very urgent task. The goal of this research was to study the effect of three viscous extracts - two polymalt and one malt extract, on the psychophysiological functions of animals in an experiment with prolonged consumption. Material and methods. The study was conducted on white mongrel male rats weighing 110-130 g, divided into 4 groups of 13 individuals. The 1st group (control) received standard granulated feed without extracts, the 2nd group - the feed with a polymalt grain extract from barley, hulless oats and wheat, the 3rd group - the feed with a polymalt grain extract from barley, hulless oats and rye, the 4th group - the feed with a malt extract from barley grain, in a dose of 2.1 g/kg of body weight. The consumption of the studied extracts in all groups of animals lasted 21 days. The animals were weighed before and after the consumption period and tested using the "Open field" test (research and motor activity were recorded), the «Rotating Rod» test (study of locomotor reactions), «Forced Swimming» (study of induced depression). Results. The addition of malt and polymalt extracts to the diet of the experimental animals had a beneficial effect on them: the duration of fading as an indicator of depression during swimming test in all experimental rats decreased by 31.4-37.8% with varying degrees of statistical significance. At the same time, a monomalt extract from barley grain and a polymalt extract from grain of barley, naked oats, and rye had a more positive effect on the condition of the animals in the experiment: in the "Rotating Rod" test, the retention time of animals as an indicator of endurance increased by 26.0-27.1%; in the «Open Field» test, motor and exploratory activity increased and the time of passive behavior decreased by 35.0-37.4%. Conclusion. The development, production and research of malt extracts is a promising direction that requires the selection of initial grain components taking into account their chemical composition. It is possible to create general restorative supplements on the basis of extracts, as well as to introduce them into alcoholic beverages in order to reduce the toxicity of ethyl alcohol and preserve a number of physiological functions in the human body during alcohol consumption.

Experimental study of the features of post-stress recovery of psychophysiological functions using balneological treatments during the solstice

During the summer and winter solstices to study the features of post-stress recovery of psychophysiological functions of laboratory rats after light or dark deprivation, followed by physical exertion and rehabilitation procedures in the form of water and antler baths. The experiment was carried out on 160 male Wistar rats. The animals were divided into 8 groups of 10 individuals at each solstice period (winter, summer). Group 1 was not exposed to any impact. Group 2 was presented with physical activity (swimming test). These two groups were in natural light conditions. Groups 3-8 underwent light desynchronosis (light or dark deprivation) followed by physical activity. After the above-mentioned influences, procedures were carried out in the form of water baths (groups 4 and 7) and baths with a preparation based on pantogematogen «Pantovanna» (groups 5 and 8). Behavioral responses were assessed using the open field test. The content of corticosterone was determined by enzyme immunoassay. During the periods of the winter solstice, dark or light deprivation increased the resistance of animals to the stress of subsequent physical activity, i.e. showed a training effect, while during the summer solstice the studied stress factors led to depletion of serum corticosterone levels, although the structure of behavior did not undergo significant changes. Post-stress recovery in the form of water and antler baths for 10 days was determined by the nature of desynchronosis and the solstice period. Pantobaths were effective in summer and winter only under TT conditions. However, in winter, after the CC-regime, the antlers intensified the stressful effect of physical activity on the animals' organism. The experiment carried out indicates the need to take into account the season of the year and the direction of the transmeridian flight to balneological resorts. Using the example of solstices in experimental conditions on rats, we have shown that balneological procedures will perform best the restorative functions when expanding as a result of such a movement of the light phase of the day, but not the dark one. It is possible that this feature can also persist for a person, since a more rapid adaptation to new light-dark conditions has been established also with the expansion of the light phase, but not the dark one.

ОСОБЛИВОСТІ НЕЙРОДИНАМІЧНИХ ТА ПСИХОФІЗІОЛОГІЧНИХ ФУНКЦІЙ ДІТЕЙ 5-7 РОКІВ З РІЗНИМ РІВНЕМ ЗОРОВОГО ТА СЛУХОВОГО СПРИЙНЯТТЯ

Introduction. The period from 5 to 7 years attracts special attention from scientists, as it is a sensitive and critical stage of individual development of the child's body.Most domestic and foreign scholars emphasize the need of selecting the content, forms and methods of teaching in accordance with age and gender. However, the peculiarity of the study is that during training should also take into account the psycho-physiological and neurodynamic characteristics of the development of participants in the educational process and adjust teaching methods based on them for more effective perception of certain information by children.The formation of visual and auditory perception for children 5-7 years, as an indicator of readiness, is one of the main cognitive functions, which is formed due to interanalytic complexes of nerve connections and maturity of the cerebral cortex.Therefore, significant attention should be paid to the invariant and variable component of the "New Ukrainian School" of the Standard curriculum of general secondary education for grades 1-2 and preschools, developed under the leadership of O. Savchenko [1], for improving cognitive development and prevention of maladaptation changes in the body during training.Purpose. The aim is to study the features of neurodynamic and mental functions of children of preschool and primary school age with different levels of visual and auditory perception.20 Серія «Біологічні науки», 202 2Methods. The observation was carried out on children aged 5-7 of two educational institutions "Secondary schools of I degrees - preschool educational institutions" No 41 and No42 of Sumy (n = 246).The method of assessment of auditory memory "Learning 10 words" (A.R. Luria, 1973) for informative study of memory was chosen. Determination of the volume of visual random memory was performed according to the method of Shipitsyna LM.M.V. Makarenko’s method on the computer complex “Diagnost-1” was used to determine individual-typological features of higher nervous activity of children.Results. The highest rate of auditory memory was recorded for children aged 6 and 7 years, in contrast to children aged 5 years, in whom the development of cognitive processes was carried outthrough visual perception. Children 5 years of age had longer latent periods obtained during sensorimotor response of varying complexity and lower results of SNP, FRNP, PGM during mental stress in contrast to children 6 and 7 years.A similar trend was also observed among boys aged 5-7 compared to girls in this age group.According to the results of neurodynamic studies, it was found that the best values of SNP, FRNP, PGM and shorter latent periods of SVMR, RC1-2, RC1-3, RC2-3 were obtained for individualswith high levels of visual and auditory perception.Originality. The idea of neurodynamic and psychophysiological functions of children 5-7 years with different levels of visual and auditory perception is expanded.Conclusions. The importance of psychophysiological and neurodynamic functions of children 5-7 years with different levels of visual and auditory perception to prevent maladaptation in the educational process was substantiated.Key words: children; cognitive development; functional mobility of nervous processes; strength of nervous processes; sensorimotor systems.

Peculiarities of changes of psychophysiological functions, state of human adaptive capacity and stress resistance of students of higher medical institutions

The study is devoted to assessing the psychophysiological adaptive capabilities of students of higher medical institutions. There was conducted a screening study on the basis of which a correlation analysis of a group of 42 students was performed. The main inclusion criterion was good physical activity. Exclusion criteria - the presence of chronic diseases, acute respiratory viral infections at the time of examination, taking antidepressants or psychoactive substances. The study was aimed to identify the peculiarities of changes in psychophysiological functions and the state of adaptive capacity of students of higher medical institutions being in stressful conditions. The following methods from the software and hardware complex "Psycholot-1" were used for the study: "Functional mobility of nervous processes according to Khilchenko" and "Memory." The survey was conducted under micro-stress, it means all tasks had to be completed in a limited period. Statistical analysis of the data was performed to establish correlations between psychophysiological indicators of short-term memory and functional mobility of nervous processes (Spearman's rank correlation index). It was found that the faster the stimulus appears in conditions of time deficit, the lower the mobility of nervous processes in the student, which is directly reflected in the indicators in increasing the minimum exposure time of the figure on the screen (0.27±0.007 s). In addition, a relationship was found between the rate of reaction of the left hand to a stimulus and the amount of information that a person can store in short-term memory. The information obtained will help to determine the initial data of the adaptive capacity of a potentially healthy contingent of people and predict their success in further professional activities in the sphere of medicine.

The influence of the use of a special technique for the development of precision-targeted movements on the level and structure of the preparedness of young baseball players

Purpose: to determine the impact of special precision-targeted exercises on the level and relationship of psychophysiological indicators, physical and technical fitness of baseball players at the initial stage of training.Results. The author's method of development of precision-target movements with the use of special exercises performed with balls of different sizes and weights has been developed.It is shown that the application of the author's method of development of precision-target movements has a positive effect on the level of technical and physical fitness, as well as on the structure of complex training of athletes. The positive influence of application of a technique of complex development of precision-target movements on psychophysiological indicators of athletes is shown.Conclusions. It is shown that the application of the author's method of development of precision-target movements has a positive effect on the structure of training of young athletes: the number of reliable relationships between indicators of psychophysiological functions and indicators of technical and physical fitness.

Transformation of psychophysiological characteristics in practically healthy and patients with hypertension of the I stage military pilots. Message II. Hidden factors that affect the formation of the ability of pilots with different health conditions

Annotation. The article is devoted to the study of the peculiarities of the transformation of professionally important psychophysiological qualities of military pilots who are practically healthy and patients with stage I hypertension. The article highlights the hidden factors that contribute to the performance of a military pilot. These factors make it possible to explain the peculiarities of the mechanisms of organization of working capacity in practically healthy and patients with hypertension and stage I military pilots. Special decision-making rules have been developed, which make it possible to state that even small changes in the state of health that occur during the development of stage I hypertension are appropriately reflected in the level of psychophysiological functions on the basis of which it is possible to distinguish with a probability of 77.5%. The degree of connection between the state of health of military pilots and the level of their psychophysiological characteristics was assessed. Recommendations for taking into account cognitive changes in pilots of patients with stage I hypertension have been developed. It is established that stage I hypertension affects the structure of correlations of psychophysiological functions of the body, which shows the difference in the mechanisms of regulation of these functions in the development of the disease. It is shown that even practically healthy military pilots have different levels of mental capacity and can show their psychophysiological qualities in different ways, especially in extreme conditions. In addition, it was found that hypertension makes about a third of the surveyed sick pilots more active, which, in turn, increases the physiological cost of professional activities, to reduce which requires periodic treatment and prevention and rehabilitation measures.

Peculiarities of relationships of characteristics of adaptation capabilities of the organism and indicators of motor activity of students

The health of student youth is largely determined by the level of functional capabilities of the organism, which depends on the level of motor activity, that is the total number of movements that a person performs in a given period of time. The purpose of the work is to establish the features of the relationship between the characteristics of adaptive capacity, functional status and level of development of psychophysiological functions and criteria for motor activity of students. The research was conducted on the basis of National Pirogov Memorial Medical University, where 385 students (200 young girls and 185 young boys) were supervised, who, taking into account the peculiarities of the distribution of different levels of motor activity, were divided into 3 comparison groups – with potentially low, medium and potentially high levels of motor activity. The values of daily energy consumption, number of locomotions and duration of the dynamic component in the daily budget were used as the leading criteria of hygienic assessment of students’ motor activity. Functional features and adaptive capabilities of the organism were determined using conventional methods. The analysis of the obtained results involved the use of a standard application package of multidimensional statistical analysis “Statistica 6.1 for Windows”. The results of studies conducted on the basis of correlation analysis procedures indicate the fact that the largest number of correlations between the characteristics of psychophysiological functions and the leading characteristics of health and indicators of academic performance in professionally oriented disciplines studied are recorded in girls, and boys who belonged to the group with an average level of physical activity (daily energy expenditure of 9000-11000 kJ in young girls and 11000-13500 kJ in young boys). The use of cluster analysis procedures during the prognostic assessment of indicators of health and academic performance in professionally-oriented disciplines, made it possible to identify 3 clusters of the studied characteristics of the functional state of students, which have the most pronounced effect on their values: visual-motor speed cluster (indicators of the latent period of simple and differentiated visual-motor response), visual-sensory cluster (indicators of critical fusion of light flickers and efficiency of work performed) and integrative-coordination cluster (a number of indicators that reflect the properties of major nervous processes, characteristics coordination of movements, indicators of attention functions, etc.). Using factor analysis procedures, it determined that both young girls and young boys have the most positive impact on academic performance in vocational disciplines such factors as “functional state of the visual sensory system”, “functional state of coordination” and “functional state of higher nervous activity”.

Original software package for psychophysiological and cognitive functions analysis of children

Psychometry plays an important role when determining the state of psychophysiological and cognitive functions in children of different ages. Goal. To deliver an original software package for a psychophysiological computer complex (PCC) “Psychomat” for implementing an online analysis of psychophysiological and cognitive functions in children of different ages. Materials and methods. One hundred eighty-four conditionally healthy school children aged 6 to 17 years were examined using a set of psychophysiological tests and original methods for evaluating higher mental functions (24 tests, 66 parameters). Results. An original software package as the computer psychophysiological complex “Psychomat” was elaborated. The norm base was determined. Also, the testing mechanism and scoring system in points for psychophysiological functions assessment were developed. Thus, it became possible to establish the patterns of cognitive and psychophysiological functions development at different ages. Conclusion. This newly created software package can be used as a test system for mass examination of children of different ages.

Resource-based approach to defining human resource policy in medical organizations

Purpose of work — analysis of modern scientific literature on the resource approach to the definition of personnel policy in medical organizations, analysis of personnel management system, personnel policy in a particular medical organization, justification of definition: "Personnel policy is personnel management, which is carried out taking into account the levels of organizational and economic, socio-psychological (huemonizing), legal, technical (5S, lean production, medical organization of a new type), training and pedagogical (mentoring) in combination and interrelation with the determining role of socioeconomic factors of the surrounding society". Materials and methods. The subject of the study — personnel policy in a medical institution on the example of the State Autonomous Institution «Serov City Hospital», using certain resources for the formation of its levels. The following methods were used in the study: analysis, classification, synthesis of scientific theoretical literature on the problem of research; analysis of documents related to the activities of a medical institution, comparison, socio-psychological testing of a number of mental and psychophysiological functions of medical workers in the professional environment. Results and discussion. The definition of "personnel policy" in a medical organization is clarified, taking into account the systematic and resource-based approach. Recommendations on the implementation of personnel policy in Serov City Hospital during the period of organizational changes and preventive measures to prevent the spread of COVID-19 were developed. Conclusion. The use of a systematic approach in the formation of personnel policy, taking into account the organizational and economic, sociopsychological, legal, technical, training and educational levels proposed by us in the aggregate and interrelation, with the determining role of socio-economic factors, allows to solve the most important issues of sustainable functioning of the medical institution in the period of organizational changes and preventive measures to prevent the spread of COVID-19.

Multivariate morphological brain signatures enable individualized prediction of dispositional need for closure.

Need for closure (NFC) reflects stable individual differences in the desire for a quick, definite, and stable answer to a question. A large body of research has documented the association between NFC and various cognitive, emotional and social processes. Despite considerable interest in psychology, little effort has been made to uncover the neural substrates of individual variations in NFC. Herein, we took a data-driven approach to predict NFC trait combining machine learning framework and the whole-brain grey matter volume (GMV) features, which represent a reliable brain imaging measure and have been commonly employed to explore neural basis underlying individual differences of cognition and behaviors. Brain regions contributing to the prediction were then subjected to functional connectivity and decoding analyses for a quantitative inference on their psychophysiological functions. Our results indicated that multivariate patterns of GMV derived from multiple regions across distributed brain systems predicted NFC at individual level. The contributing regions are distributed across the emotional processing network (e.g., striatum), cognitive control network (e.g., lateral prefrontal cortex), social cognition network (e.g., temporoparietal junction) and perceptual processing network (e.g., occipital cortex). The current study provided the first evidence that dispositional NFC is embodied in multiple large-scale brain networks, helping to delineate a more complete picture about the neuropsychological processes that support individual differences in NFC. Beyond these findings, the current interdisciplinary approach to constructing and interpreting neuroimaging-based prediction model of personality traits would be informative to a wide range of future studies on personality.Supplementary InformationThe online version contains supplementary material available at 10.1007/s11682-021-00574-w.

Prognostic criteria of psychophysiological adaptation according to visual and computer EEG analyses of employees of nuclear hazardous enterprises and industries

Introduction. The study's relevance is due to the need to improve the safety of nuclear industry enterprises and, as a consequence, to ensure a good level of psychophysiological functioning of employees. The study aims to identify the analysis of EEG indicators characterizing the FS of the central nervous system at different levels of PFA using visual and computer analysis. Materials and methods. Object - 331 archival EEGS of workers of hazardous radiation industries. The researchers determined the level of adaptation of employees using psychological, psychophysical, and physiological techniques. We conventionally recorded the EEG at rest and functional loads. In addition, scientists used a visual analysis and computer evaluation of the spectral power of EEG biopotentials in the processing. Results. With the help of visual analysis, we identified diagnostic features reflecting different levels of psychophysiological adaptation and functional activity of structural and functional formations of the central nervous system. It is possible to determine the role of structural and functional formations in forming a low level of adaptation and formulate prognostic criteria for adaptation. Researchers have identified some mechanisms of these criteria based on the evaluation results of the spectral power of EEG biopotentials. Conclusions. We identified four abnormal indicators in the EEG: "Type IV EEG", "Unstable EEG dynamics", "High index of β1 activity", "Presence of flashes of bilateral synchronous waves". These indicators indicate the presence of violations of the central regulation of the cardiovascular system and dysfunctional changes in the structures of the limbic-reticular complex. Therefore, we consider it as a criterion of a low level of PFA. The identification in the EEG of persons with a high level of PFA electroencephalographic norm indicates the absence of violations of the central regulation of the cardiovascular system and dysfunctional changes in the structures of the limbic-reticular complex. Researchers consider this a sign of a high probability of these individuals performing professional activities with a low risk of emergencies due to reduced adaptation.

The factor structure of complex preparation of young football players of different ages

Purpose: to determine the factor structure of complex training of young football players aged 12-13 and 15-16 on the basis of indicators of physical, technical fitness and indicators of psychophysiological functions.
 Material and methods. Participants: 48 football players took part in the study, aged 15-16, 48 football players aged 12-13. The following data were determined: indicators of the level of physical fitness; indicators of the level of technical readiness; indicators of psychophysiological condition. The structure of complex preparedness was determined using factor analysis (SPSS-17, Dimension Redaction - Factor; Extraction Method: Principal Component Analysis; Varimax with Kaiser Normalization).
 Results. The structure of complex training of young football players aged 12-13 is dominated by speed and strength, technical training in combination with switching of attention and mobility of the nervous system. The obtained data create conditions for recommendations in the training process of young football players aged 12-13 to increase the number of exercises that require the development of speed and strength, technical training in combination with exercises to switch attention. The structure of the complex training of young football players aged 15-16 is dominated by the mobility of the nervous system in combination with physical and technical training and switching of attention. The obtained data create conditions for recommendations in the training process of young football players aged 15-16 to increase the number of exercises that require nervous system mobility, physical fitness, in particular - speed and strength, technical training in combination with exercises to switch attention.
 Conclusions. The obtained data create conditions for recommendations in the training process of young football players aged 15-16 to increase the number of exercises that require the manifestation of nervous system mobility, physical fitness, in particular - speed and strength, technical training combined with exercises to switch attention, and in the training process young football players aged 12-13 to increase the number of exercises that require the development of speed and strength, technical training in combination with exercises to switch attention.

Methodology for the development of precision-target movements in the training of young baseball players

Purpose: to determine the impact of special precision-targeted exercises on the level and relationship of psychophysiological indicators, physical and technical fitness of baseball players at the initial stage of training.
 Results. The author's method of development of precision-target movements with the use of special exercises performed with balls of different sizes and weights has been developed.
 It is shown that the application of the author's method of development of precision-target movements has a positive effect on the level of technical and physical fitness, as well as on the structure of complex training of athletes. The positive influence of application of a technique of complex development of precision-target movements on psychophysiological indicators of athletes is shown.
 Conclusions. It is shown that the application of the author's method of development of precision-target movements has a positive effect on the structure of training of young athletes: the number of reliable relationships between indicators of psychophysiological functions and indicators of technical and physical fitness.

MODELING THE DRIVER'S REACTION TIME TAKING INTO ACCOUNT THE INFLUENCE OF CONFLICT SITUATIONS ON CITY STREETS

The driver's reaction time is the most important characteristic when driving. The driver's reaction time is the period of time from the moment the stimulus appears in the driver's field of vision until the start of the action (application of the brake pedal, accelerator, steering wheel). The response time to stimuli depends on: the driver's age; the state of his health; mental state; alcohol or drug consumption; if at the moment he is in the vehicle alone or with a passenger, etc. The functional state of the driver is a complex of characteristics of the functions and qualities of the operator, which directly or indirectly characterizes the performance of labor activity. This definition draws a line between the state of a person and the state of his individual physiological and psychophysiological functions. One of these indicators is the stress index. Heart rate is a stable and accurate indicator of functional status. The experiment involved drivers with 10-16 years of experience. The driver's cardiogram was recorded using a portable Holter and analyzed in the CardioSens CS system. According to the degree of danger, conflict situations are divided into three types: light, medium and critical. The degree of danger of a conflict situation is determined by the appearance of critical accelerations. A racelogic device was used to register the acceleration parameters. The obtained dependences of the change in the functional state of the driver and the reaction time in accordance with the number of conflict situations while driving indicate significant fluctuations in these indicators. Change in reaction time from 0.7 sec. up to 1.5 sec. associated with significant psychophysio-logical stress on the driver, the number of conflict situations of various types: the appearance of a pedestrian, dangerous maneuvering of other vehicles, etc. At the same time, the driver's stress may increase by more than 2.5 times. The article discusses an approach to modeling the driver's reaction time, taking into account the influence of conflict situations on city streets. Experimental studies of the regularities of changes in the reaction time, the stress index of drivers in traffic on city streets have been carried out. Two factor models have been built, taking into account the mutual influence of factors of movement time in urban conditions and the number of conflict situations.

Порівняльна характеристика результатів оцінювання психофізіологічних функцій різних категорій військових льотчиків

The aim of the study was to carry out a comparative analysis of the values and structure of correlation relationships of psychophysiological function of different categories of military pilots (112 – supersonic, 109 – transport and 142 – helicopter aircraft). The analysis of the obtained results was carried out according to the indicators of personified characteristics, neurodynamic and psychomotor functions. A significant identity of the values and structure of the correlation relationships of indicators of psychophysiological functions of military pilots of supersonic and transport aviation was established. The presence of a common system-forming factor in ensuring the reliability of task performance determines the prevalence of indicators of psychomotor functions over those in helicopter pilots for whom the indicators of most neurodynamic functions are reliably better. Respectively, in the groups of military pilots of supersonic and transport aviation, psychophysiological functions are fairly well correlated with each other and are closely related to majority of personal characteristics, forming 45 and 52 % of relationships. Among helicopter pilots, such relationships are significantly less, amounting 24%. There is also a lack of significant influence of personalized characteristics on the formation of the «correlation frame» of psychophysiological functions.

Peculiarities of transformation of psychophysiological characteristics of military pilots, practically healthy and patients with stage I hypertension. Message I. Restructuring of performance correlates related to the health status of military pilots

Annotation. The article is devoted to the study of the peculiarities of the transformation of professionally important psychophysiological qualities of military pilots, practically healthy and with stage I hypertension (80 people). Statistical analysis of the data was performed using the methods of variation statistics, nonparametric statistics – correlation (Spearman’s correlation coefficient), cluster analysis (k-means method) using the software package STATISTICA 13.3. It has been established that hypertension affects the structure of correlations of psychophysiological functions of the body, which indicates a difference in the mechanisms of regulation of these functions during the development of the disease. It is shown that even healthy military pilots have different levels of mental capacity and can show their psychophysiological qualities in different ways, especially in extreme conditions. In addition, it was found that in the presence of hypertension in the body of a third of pilots show compensatory reactions to increase the activation of body functions, which, in turn, increases the physiological cost of professional activity, to reduce which must periodically apply treatment and rehabilitation measures.

Self-Perceived Facial Attractiveness, Fluctuating Asymmetry, and Minor Ailments Predict Mental Health Outcomes

ObjectivePhenotypic markers associated with developmental stability such as fluctuating asymmetry, facial attractiveness, and reports of minor ailments can also act as indicators of overall physical health. However, few studies have assessed whether these markers might also be cues of mental health. We tested whether self- and other-perceived facial attractiveness, fluctuating asymmetry, and minor ailments are associated with psychopathological symptoms in a mixed sample of 358 college students, controlling for the effects of body mass index, age, and sex.MethodsWe applied the Symptom Checklist-90-Revised (SCL-90-R) questionnaire to assess psychopathological symptoms, a battery of questionnaires about self-perceptions of facial attractiveness, and gathered information about the number of previous minor ailments as well as demographic data. Other-perceived attractiveness was assessed by an independent mixed sample of 109 subjects. Subjects’ facial fluctuating asymmetry was determined by geometric morphometrics.ResultsThe results revealed that in both men and women, higher self-perceived attractiveness and fewer minor ailments predicted lower scores of Somatization, Obsessive–Compulsive, Interpersonal Sensitivity, Depression, Anxiety, Phobic Anxiety, Paranoid Ideation, Psychoticism, and a General Psychopathology Index. Higher facial fluctuating asymmetry was associated with higher Interpersonal Sensitivity, but did not contribute to its prediction when controlling for the other studied variables.ConclusionsThe observed strong associations between self-perceived attractiveness, minor ailments, and psychopathology indicate common developmental pathways between physiological and psychological symptomatology which may reflect broader life history (co)variation between genetics, developmental environment, and psychophysiological functioning.

Порівняльна характеристика психофізіологічних функцій військових та цивільних льотчиків

The aim of the study was to determine the characteristics of the psychophysiological functions of 363 military and 110 civilian pilots by comparative analysis of the results of evaluating their values and the structure of correlation relationships. The analysis of the obtained data was carried out using the well-known methods of variation statistics and correlation analysis. It was shown that among military pilots the best were indicators of neurodynamic functions, attention and reliability of task performance, and among civilians – orientation in space and short-term memory. In the group of military pilots, psychophysiological functions are fairly well correlated with each other and are closely related to most of the personified characteristics, forming 45,5 ± 6,1% of relationships of the maximum number. Among civilian pilots, there are fewer such relationships 24,2 ± 5,3%; there is no correlation between psychophysiological functions and personified characteristics. The regulation of possible negative shifts in psychophysiological functions and the reliability of mission performance in military pilots is carried out primarily as a result of the stabilizing effect of the balance of nervous processes and, to a lesser extent, the strength of nervous processes and orientation in space. Among civilian pilots, such regulation is fairly evenly distributed between the balance of nervous processes, attention, orientation in space, and short-term memory.