scholarly journals Influence of Examınatıon Stress on Vegetatıve Indıcators ff 17-21-Year-Old Students-Phlegmatıcs

2021 ◽  
Vol 6 (1) ◽  
pp. 332-338
Author(s):  
T. V. Rustamova ◽  
Keyword(s):  
Nervous System ◽  
Young People ◽  
Arterial Pressure ◽  
Emotional Stress ◽  
The Body ◽  
Cardiac Contraction ◽  
Test Material ◽  
Exam Stress ◽  
Personal Anxiety ◽  
Examination Stress

Exam stress is one of the numerous causes of complex psychophysiological stress in students. One of the modern problems of electrophysiology is the study of the action mechanism of high levels of anxiety in students during and after the examination. The speed of development of the lifestyle of young people and an increase in the level of stress in the environment lead to a change in the relationship in the adaptive function of the body and the emergence of various kinds of deviations. Examination stress is accompanied by the emergence of many complex neurophysiological changes in the body, which negatively affects the life of young men. In all cases, young people strive to achieve their goals, which in itself leads to emotional stress. One of them is the study of the functioning of the nervous system during emotional stress and clarification of the role of various types of the higher nervous system in this. Despite a comprehensive study of this problem, this issue still remains relevant, and the study of the mechanisms of the anxiety process continues. The article presents the results of changes in the level of situational and personal anxiety of the examination process on the indicators of the autonomic nervous system in I and V year students, at the age of 17-21 years, having a type of phlegmatism. Before the beginning of the experiment, the type of temperament was determined by G. Eisenk test. Material and methods. To determine the level of situational and personal anxiety (emotional tension) of 17–21-year-olds, having the phlegmatic type of temperament, we used the method of expressive test two days before the exam, 30 minutes before the exam and 30 minutes after the exam. In all three groups, arterial pressure was measured using the Korotkova method and pulpator method of determining the heart rate per minute. Vegetative tone was calculated based on the Kerdo vegetative index. Results and discussion. The obtained results showed that 17-year-old phlegmatics-first-year students observed differences between the frequencies of cardiac contraction and arterial pressure two days before the exam, 30 minutes before the exam and 30 minutes after the exam. In all groups, the test had a sympathetic character, which testifies to the superiority of the sympathetic nervous system in the duration of the entire examination period. In 21-year-old students-phlegmatics course-vegetative indicators in two days before the exam, 30 minutes before the exam and 30 minutes after the exam differred slightly in comparison with 17-year-olds. Similarly, the Kerdo vegetative index of the 17-year-old students-phlegmatics and 21-year-old students-phlegmatics in all groups had the sympathetic character. This is also evidence of the prevalence of a sympathetic disorder of the sympathetic process used to optimize academic performance, correction of exam stress and protection of students' health

THE INFLUENCE OF EXAMINATION STRESS ON VEGETATIVE INDICATORS IN 17-21-YEAR-OLD STUDENTS WITH A MELANCHOLIC TYPE OF HIGHER NERVOUS ACTIVITY

2021 ◽  
Vol 23 (6) ◽  
pp. 18-29
Author(s):  
Rustamova T.V.
Keyword(s):  
Nervous System ◽  
Nervous Activity ◽  
Age Groups ◽  
Learning Activities ◽  
Male Students ◽  
Before And After ◽  
Personal Anxiety ◽  
Examination Stress ◽  
Sympathetic Nervous ◽  
Examination Process

The article is devoted to the influence of an increased level of situational and personal anxiety of examination stress on the indices of the autonomic nervous system in 17-21-year-old male students (I and V courses) with a melancholic type of nervous system. In the course of the conducted studies, it was found that in 17- and 21-year-old students-melancholic during the examination process between heart rate and blood pressure there are some differences that do not normalize after the exam. Vegetative indicators in 21-year-old students in the periods before and after the exam are slightly increased, relative to indicators in 17-year-old students. The Kerdo vegetative index (VIC) in both age groups was in a state of sympathicotonia, which is an indicator of the superiority of the sympathetic nervous system throughout the entire examination process. The results obtained in the course of this study can be used to optimize learning activities, relieve stress in exams and protect students' health.

scholarly journals Theoretical bases of exam stress (literature review)

2020 ◽  
Vol 4 ◽  
pp. 7-17
Author(s):  
Natavan Karamova ◽  
Keyword(s):  
Nervous System ◽  
Autonomic Nervous System ◽  
Young People ◽  
Literature Review ◽  
Cognitive Processes ◽  
Human Body ◽  
Emotional Tone ◽  
Autonomic Nervous ◽  
Stress Changes ◽  
Exam Stress

It is known that socially conditioned reactions, which are clearly manifested in exam stress, are a state accompanied by complex psychophysiological changes in the human body. According to the final results obtained from the literature, against the background of negative emotional tone of exam stress, changes in cognitive processes, increased excitement, acceleration of the autonomic nervous system, various behavioral disorders, etc. is being observed. The situation, which affects most adolescents and young people, can lead to poor health and a number of psychopathological conditions.

scholarly journals Situational Excitement Indicators of the Examination Process Influence to the Nervous System in 17 and 20-Year-Old Students in I and IV Courses Depending on Their Types of Temperament

2020 ◽  
Vol 6 (8) ◽  
pp. 55-64
Author(s):  
T. Rustamova
Keyword(s):  
Nervous System ◽  
Young People ◽  
Emotional Stress ◽  
Score System ◽  
Situational Anxiety ◽  
Insignificant Difference ◽  
The Difference ◽  
Examination Process

The article deals with changes in situational excitemen level of the examination process in I and IV courses depending on the temperament of the nervous system. The research was conducted 2 months before the exam, 30 minutes before the exam and 30 minutes after the exam. Before starting the study, the temperament types of the nervous system of young people were studied. Situational anxiety of young people of different temperament types (emotional stress) was determined by a score system in three different situations: on normal days, before the exam and after the exam. The situational alarm was determined by an express version of the test questionnaire according to the Spielberg. It was found that at all stages, first- and fourth-year students had an insignificant difference between the types in situational excitemen level. Also, the difference between groups was not statistically reliable. In addition, the indicators of phlegmatic, choleric and sanguine types of situational excitemen level in the 4th year students changed statistically reliable in comparison with normal days. At the same age, the phlegmatic and sanguine types of situational excitemen level in after the exam were statistically reliable compared to normal days. In the IV course traps, the indicators of the phlegmatic type are statistically reliable in comparison with before the exam and after the exam situational excitemen level.

Neuron-glia relationship during the early postembryonic development of the nervous system in some oligochaetes

1978 ◽  
Vol 36 (2) ◽  
pp. 600-601
Author(s):  
Wiktor Djaczenko ◽  
Carmen Calenda Cimmino
Keyword(s):  
Nervous System ◽  
Glial Cells ◽  
Early Period ◽  
Postembryonic Development ◽  
Ruthenium Red ◽  
The Body ◽  
Tubifex Tubifex ◽  
Growth Stages ◽  
Cell Processes ◽  
Cytoplasmic Processes

The simplicity of the developing nervous system of oligochaetes makes of it an excellent model for the study of the relationships between glia and neurons. In the present communication we describe the relationships between glia and neurons in the early periods of post-embryonic development in some species of oligochaetes.Tubifex tubifex (Mull. ) and Octolasium complanatum (Dugès) specimens starting from 0. 3 mm of body length were collected from laboratory cultures divided into three groups each group fixed separately by one of the following methods: (a) 4% glutaraldehyde and 1% acrolein fixation followed by osmium tetroxide, (b) TAPO technique, (c) ruthenium red method.Our observations concern the early period of the postembryonic development of the nervous system in oligochaetes. During this period neurons occupy fixed positions in the body the only observable change being the increase in volume of their perikaryons. Perikaryons of glial cells were located at some distance from neurons. Long cytoplasmic processes of glial cells tended to approach the neurons. The superimposed contours of glial cell processes designed from electron micrographs, taken at the same magnification, typical for five successive growth stages of the nervous system of Octolasium complanatum are shown in Fig. 1. Neuron is designed symbolically to facilitate the understanding of the kinetics of the growth process.

Assessment of indicators of nervous and emotional stress in medical center personnel depending on the characteristics of their professional activity

2020 ◽  
Vol 60 (10) ◽  
pp. 650-657
Author(s):  
Irina V. Fedotova ◽  
Tatyana N. Vasilyeva ◽  
Tatyana V. Blinova ◽  
Irina A. Umnyagina ◽  
Yuliya V. Lyapina ◽  
...  
Keyword(s):  
Oxidative Stress ◽  
Emotional Stress ◽  
Functional State ◽  
Working Conditions ◽  
Medical Staff ◽  
Medical Center ◽  
The Body ◽  
Office Workers ◽  
Glutathione System ◽  
Medical Centers

Introduction. Digital technologies are actively used in the work of specialists of medical centers of various profiles, which causes the impact on employees of a number of professional factors that determine the characteristics of their work. The aim of the study is to evaluate the influence of professional factors on the functional state of the employees' body and the glutathione system as an objective indicator of stress based on the analysis of the subjective perception of the medical center employees of the specifics of working with personal computers and psychophysiological testing. Materials and methods. The study involved 109 specialists of medical centers (25 ophthalmologists, 31 representatives of the secondary medical staff - nurses and paramedics, 53 office employees). The anonymous survey concerned the assessment of working conditions and their impact on the functional state of the body of the respondents. Performance and stress tolerance indicators were evaluated using three standard questionnaires. The study of 66 subjects' levels of glutathione in the blood: total, reduced, oxidized and the ratio of reduced and oxidized - was used to analyze the relationship of the neuro-emotional nature of labor with the reaction of oxidative stress. Statistical processing of the obtained data was carried out using traditional methods of variation statistics and calculating the value of the odds ratio (OR) with a 95% confidence interval (CI). Results. The survey revealed a significant proportion of people in all groups of respondents who constantly use computer technology in their work. Describing the quality of the processed information, doctors more than representatives of other groups note its complexity, importance, negative emotional color, a high degree of responsibility and tension. Doctors more often than average medical staff and office workers associate the manifestation of fatigue with an uncomfortable state of the visual organ, nervous system, and musculoskeletal system. The subjects showed reduced performance and stress tolerance with the most pronounced negative trends in the group of doctors. Changes in the glutathione system were detected, indicating the presence of oxidative stress in 40% of ophthalmologists and office workers, and in half of nurses. Conclusions. The work of specialists of medical centers of various profiles in accordance with their assessment is characterized by high nervous and emotional stress, due to the need to process a significant amount of complex and important professionally significant information. Subjectively noted by respondents the influence of working conditions on the functional state of the body is confirmed by indicators of the glutathione system, which can be used as indicators of nervous and emotional stress.

Characteristics of the dynamics of the central nervous system and att ention function in workers of shoe production

2020 ◽  
pp. 64-68
Author(s):  
F. L. Azizova ◽  
U. A. Boltaboev
Keyword(s):  
Central Nervous System ◽  
Nervous System ◽  
Women Workers ◽  
Functional State ◽  
The Body ◽  
Conflict Of Interests ◽  
Professional Groups ◽  
Universal Device ◽  
The Central Nervous System ◽  
Working Day

The features of production factors established at the main workplaces of shoe production are considered. The materials on the results of the study of the functional state of the central nervous system of women workers of shoe production in the dynamics of the working day are presented. The level of functional state of the central nervous system was determined by the speed of visual and auditory-motor reactions, installed using the universal device chronoreflexometer. It was revealed that in the body of workers of shoe production there is an early development of inhibitory processes in the central nervous system, which is expressed in an increase in the number of errors when performing tasks on proofreading tables. It was found that the most pronounced shift s in auditory-motor responses were observed in professional groups, where higher levels of noise were registered in the workplace. The correlation analysis showed a close direct relationship between the growth of mistakes made in the market and the decrease in production. An increase in the time spent on the task indicates the occurrence and growth of production fatigue.Funding. The study had no funding.Conflict of interests. The authors declare no conflict of interests.

Neurophysiological and morphological effects in the post-exposure vibration period during experimental modeling

2019 ◽  
pp. 284-290
Author(s):  
Natalya L. Yakimova ◽  
Vladimir A. Pankov ◽  
Aleksandr V. Lizarev ◽  
Viktor S. Rukavishnikov ◽  
Marina V. Kuleshova ◽  
...  
Keyword(s):  
Nervous System ◽  
Evoked Potentials ◽  
Experimental Model ◽  
Visual Evoked Potentials ◽  
The Body ◽  
Behavioral Activity ◽  
Contact Period ◽  
Vibration Exposure ◽  
Visual Evoked

Introduction. Vibration disease continues to occupy one of the leading places in the structure of professional pathology. In workers after the termination of contact with vibration generalization and progression of violations in an organism is noted. The pathogenetic mechanisms of the progredient course of disturbances in the nervous system in the post-contact period of vibration exposure remain insufficiently studied.The aim of the study was to test an experimental model of vibration exposure to assess the neurophysiological and morphological effects of vibration in rats in the dynamics of the post-contact period.Materials and methods. The work was performed on 168 white male outbred rats aged 3 months weighing 180–260 g. The vibration effect was carried out on a 40 Hz vibrating table for 60 days 5 times a week for 4 hours a day. Examination of animals was performed after the end of the physical factor, on the 30th, 60th and 120th day of the post-contact period. To assess the long-term neurophysiological and morphofunctional effects of vibration in rats, we used indicators of behavioral reactions, bioelectric activity of the somatosensory zone of the cerebral cortex, somatosensory and visual evoked potentials, parameters of muscle response, morphological parameters of nervous tissue.Results. In the dynamics of the post-contact period observed the preservation of violations of tentatively research, motor and emotional components of behavior. In the Central nervous system instability of activity of rhythms of an electroencephalogram, decrease in amplitude of visual evoked potentials, lengthening of latency of somatosensory evoked potentials, decrease in total number of normal neurons and astroglia is established. In the peripheral nervous system remained changes in indicators: increasing duration and latency, reducing the amplitude of the neuromuscular response.Conclusions: The experimental model allows us to study the long-term neurophysiological and morphological effects of vibration on the body. The formation and preservation of changes in behavioral activity, neurophysiological and morphological effects of vibration from the 30th to the 120th day of the post-contact period were confirmed.

Emotional processing and the autonomic nervous system: a comprehensive meta-analytic investigation

2018 ◽  
Author(s):  
Pedro Silva Moreira ◽  
Pedro Chaves ◽  
Nuno Dias ◽  
Patrício Costa ◽  
Pedro Rocha Almeida
Keyword(s):  
Nervous System ◽  
Autonomic Nervous System ◽  
Skin Conductance ◽  
Emotional Processing ◽  
Skin Conductance Level ◽  
The Body ◽  
Analytic Investigation ◽  
Physiological Basis ◽  
Autonomic Nervous ◽  
Conductance Level

Background: The search for autonomic correlates of emotional processing has been a matter of interest for the scientific community with the goal of identifying the physiological basis of emotion. Despite an extensive state-of-the-art exploring the correlates of emotion, there is no absolute consensus regarding how the body processes an affective state.Objectives: In this work, we aimed to aggregate the literature of psychophysiological studies in the context of emotional induction. Methods: For this purpose, we conducted a systematic review of the literature and a meta-analytic investigation, comparing different measures from the electrodermal, cardiovascular, respiratory and facial systems across emotional categories/dimensions. Two-hundred and ninety-one studies met the inclusion criteria and were quantitatively pooled in random-effects meta-analytic modelling. Results: Heart rate and skin conductance level were the most reported psychophysiological measures. Overall, there was a negligible differentiation between emotional categories with respect to the pooled estimates. Of note, considerable amount of between-studies’ heterogeneity was found in the meta-analytic aggregation. Self-reported ratings of emotional arousal were found to be associated with specific autonomic-nervous system (ANS) indices, particularly with the variation of the skin conductance level. Conclusions: Despite this clear association, there is still a considerable amount of unexplained variability that raises the need for more fine-grained analysis to be implemented in future research in this field.

Neural Stem Cells to Glial Cells an Important Factor for Brain Injury

2020 ◽  
Author(s):  
Prithiv K R Kumar
Keyword(s):  
Stem Cells ◽  
Central Nervous System ◽  
Nervous System ◽  
Neural Stem Cells ◽  
Glial Cells ◽  
Brain Injuries ◽  
The Body ◽  
The Central Nervous System ◽  
Near Future

Stem cells have the capacity to differentiate into any type of cell or organ. Stems cell originate from any part of the body, including the brain. Brain cells or rather neural stem cells have the capacitive advantage of differentiating into the central nervous system leading to the formation of neurons and glial cells. Neural stem cells should have a source by editing DNA, or by mixings chemical enzymes of iPSCs. By this method, a limitless number of neuron stem cells can be obtained. Increase in supply of NSCs help in repairing glial cells which in-turn heal the central nervous system. Generally, brain injuries cause motor and sensory deficits leading to stroke. With all trials from novel therapeutic methods to enhanced rehabilitation time, the economy and quality of life is suppressed. Only PSCs have proven effective for grafting cells into NSCs. Neurons derived from stem cells is the only challenge that limits in-vitro usage in the near future.

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