scholarly journals THE EFFECTS OF EXAM STRESS ON THE FUNCTIONAL STATE OF THE CARDIOVASCULAR SYSTEM AND LEVEL OF ANXIETY IN STUDENTS WITH DIFFERENT TYPES OF HIGHER NERVOUS ACTIVITY

2017 ◽  
Vol 62 (2) ◽  
pp. 115-118 ◽  
Author(s):  
E. Y. Nadezhkina ◽  
◽  
E. I. Novikova ◽  
M. V. Muzhichenko ◽  
O. S. Filimonovа ◽  
...  
Author(s):  
D. D. Horban ◽  
O. V. Yusupova ◽  
M. I. Sobichanska ◽  
V. G. Chorna

<p>The experimental research included the study of the functional state of blood microcirculation by means of laser Doppler flowmetry (LDF). Allowing to assess the condition of tissue blood flow and to detect the features of the microcirculation under different types of higher nervous activity. The obtained results showed that at most of students high-amplitude LDF was registered. Determining the characteristics of students` blood microcirculation with different types of higher nervous activity among healthy students 17-22 years showed that the prevailing strong and active types of temperament (choleric and sanguine) students hiperemichnym type of temperament. Percentage strong, but few mobile (phlegmatic) students was minimal and there was a greater number of students with hiperemichnym type of microcirculation, and the percentage weak sedentary (melancholic) type had a mean and often observed in students from normoemichnym type of blood microcirculation.</p> <p><em>Keywords: the blood microcirculation, LDF-metry,</em><em> </em><em>the</em><em> higher nervous activity, temperament.</em></p>


2017 ◽  
Vol 19 (78) ◽  
pp. 81-85
Author(s):  
Yu.O. Sysyuk ◽  
V.I. Karpovskiy ◽  
O.V. Zhurenko ◽  
O.V. Danchuk ◽  
R.V. Postoy

The article presents the results of the studying the content of some vitamins in blood serum of cows with different types of higher nervous activity depending on the season. The purpose of the study was to determine the influence of the typological features of the nervous system on the content of separate vitamins in blood serum of cows depending on the season. The experiment was carried out on the basis of the farm «Kolos» village Borodianka, Kyiv region on clinically healthy cows of Ukrainian black-and-white dairy breed of 2–3rd lactation. On the basis of the investigation the conditioned reflex activity, 4 experimental groups of animals were formed with 4 most typical representatives of the identified types of higher nervous activity in each: 1st group – strong balanced mobile type, 2nd group – strong balanced inert type, 3rd group – strong unbalanced type, 4th group – weak type. The research material was blood serum, in which the content of vitamins A, E and C was determined by express method via liquid chromatography. The conducted investigation of ascorbic acid, retinol and tocopherol content in blood serum of cows with different types of higher nervous activity in winter and summer periods shown that its content is significantly dependent on the season. In particular, the content of ascorbic acid in blood serum of cows with different types of higher nervous activity in the winter season was lower by 22–27% in compare with its meaning in the summer season. It should be noted that the largest difference in content of vitamin C in blood serum depending on the season was found in animals of strong balanced inert and weak types of higher nervous activity (by 27.4%, P < 0.001 and 24.0%, P < 0.001 respectively). While in animals of strong balanced mobile and strong unbalanced types of higher nervous activity the content of vitamin C in blood serum was lower by 23.2% (P < 0.001) and 21.7% (P < 0.001), respectively. The content of fat-soluble vitamins in blood serum of cows with different types of higher nervous activity is also largely dependent on the season. Thus, the content of tocopherol was lower in the winter season by 35.8–41.6% (P < 0.001) depending on the type of higher nervous activity. And the retinol content was lower by 49.2–55.3% (P FU=3.0; P FU = 3.0; P < 0.05. However, the main properties of cortical processes did not have a significant influence on the content of retinol in blood serum – F = 2.8 < FU = 3.0; P = 0.06. The season has a significant influence on the content of the above mentioned vitamins – F = 126–348 > FU = 4.3; P < 0.001, which is obviously due to the level of supply the animal’s body with vitamins during different seasons. It should be noted that there is no relationship between the sources of variation (type of higher nervous activity and season), which obviously testifies to the absence of influence of the seasons on the main features of cortical processes (F = 0.37–1.64 < FU = 3.0; P = 0.208–0.775). Thus, the influence of the main features of cortical processes on the content of ascorbic acid, retinol and tocopherol in blood serum of cows is found. In animals of weak type of higher nervous activity the vitamin content in blood serum is lower than in animals of strong types. The lower content of ascorbic acid, retinol and tocopherol in blood serum of cows in the winter season, regardless the type of higher nervous activity, has been established.


2018 ◽  
Vol 64 (4) ◽  
pp. 26-32 ◽  
Author(s):  
O.V. Danchuk ◽  
◽  
V.I. Karpovskyі ◽  
V.О. Trokoz ◽  
◽  
...  

2018 ◽  
Vol 20 (92) ◽  
pp. 109-112
Author(s):  
Yu. V. Kravchenko-Dovga ◽  
V. I. Karpovskyi ◽  
O. V. Danchuk ◽  
O. V. Zhurenko

New scientific data on the degree and nature of the effect of force, balance and mobility of cortical processes on the mineral status in the body of cows are given. The experiment was conducted on cows of Ukrainian black-and-white milk breed of second-third lactation of different types of higher nervous activity. Investigations of conditioned-reflex activity were conducted using the modified method of conditional-food reflexes G.V. Parshutina and T.V. Hippolyte. The material for research was blood samples of animals, in which the content of individual macro- and trace elements was determined. It is established that in an animal of a strong, balanced, mobile type of higher nervous activity an optimum content of macroelements in the blood is established. Thus, the content of sodium was 119.3 ± 1.1 mmol/dm3, Kcal – 5.62 ± 0.39 mmol/dm3, phosphorus – 8.38 ± 0.11 mmol/dm3, calcium – 2.22 ± 0.09 mmol/dm3 and magnesium – 0.84 ± 0.02 mmol/dm3. In cows of a strong, balanced inert type of higher nervous activity, the content of phosphorus in the blood is lower by 9.3% (P < 0.01), in animals of a strong unbalanced type, the content of phosphorus and magnesium is less by 7.4–9.6% (P < 0.01) and in cows of weak type the content of Potassium, Phosphorus and Magnesium is lower by 13.3–29.2% (P < 0.001) from the indicator of animals of a strong, balanced, mobile type of higher nervous activity. The microelement status of the cows of a strong, balanced, mobile type of higher nervous activity is characterized by the following their content in the blood: Ferrum – 17.8 ± 0.6 μmol/dm3 Zinc – 20.67 ± 0.95 μmol/dm3 Manganese – 0.84 ± 0.02 μmol/dm3 and Kuprum – 13.28 ± 0.29 μmol/dm3. In blood of strong, balanced, inert and strong unbalanced type, the content of zinc in the blood is lower by 17.1–18.5% (P < 0.001), in animals of weak type the content of Ferum, Zinc, Mangan and Kuprum is less than 8.0–24.6% (P < 0.05–0.001) in accordance with the indices of strong, balanced, mobile type of higher nervous activity.


2018 ◽  
Vol 20 (83) ◽  
pp. 274-278
Author(s):  
V.O. Trokoz ◽  
A.V. Trokoz

The aim of this research was to figure out the level and character of typological nervous system features influence on immunological reactivity manifestation in pigs, in particularly dynamics of monocytes count in plasma under the influence of biological stimulation (vaccination against Swine Reproductive and Respiratory Syndrome). Swine groups of Strong Balanced Agile, Strong Balanced Inert, Strong Unbalanced and Weak types of higher nervous activity were formed for te experiment. Within the research period WBC count was performed for blood of these animals (in Goryaev`s camera), particularly relative monocytes count was determined along with calculation of absolute figure of monocyte contents. It was investigated that the smallest relative monocytes amount is characteristic for pigs of Weak type of higher nervous system. It might be the evidence that the animals with Strong Balanced Agile type of higher nervous activity possess much more potent non-specific immunity, on the other hand animals of Weak type – the poorest. The strongest straight correlation of relative monocytes amount was investigated to force of cortical processes. Nevertheless, participation in regulation of monocytes content in blood of pigs with different types of higher nervous activity also have taken agility and balance of excitation and inhibition processes. Biological stimuli influence is strengthens mentioned connections, but most of all with force of cortical processes. Repeated biological stimuli sharply lower the correlation of the relative monocytes amount to other properties of excitation and inhibition processes in cerebral hemispheres cortex. Further, relationships are renewed and in 28th day after repeated administration of antigen to animals coefficients of correlation are close to initial ones, especially towards cortical processes` force. This certifies that animals of Strong Balanced Agile type of higher nervous activity firstly react non-specifically on biological stimuli, and those reactions is strong enough to protect them against damaging factor. For animals with Weak type such reaction is not typical. That is why those animals have to be treated with cautions during veterinary and husbandry performances. Further research in the direction of finding out the features of non-specific immunity in animals of different types of higher nervous activity and the effect on these indicators of autonomic nervous system excitability will be carried out.


2018 ◽  
Vol 20 (83) ◽  
pp. 212-215
Author(s):  
Yu.O. Sysyuk ◽  
V.I. Karpovskyi ◽  
O.V. Danchuk

Cortical mechanisms of regulation of the content of TBC-active products in the cow’s organism depending on the season are given in the article. Experiments were carried out on cows of Ukrainian black-and-rumped breed of second-third lactation of different types of higher nervous activity. It is established that in cows with a weak type of higher nervous activity, the content of TBA-active products in blood plasma is higher than in strong cows. Thus, in the summer, this indicator in animals of the weak type of higher nervous activity was higher by 18.0% (P < 0.01) in accordance with the indicators of animals of a strong, balanced, mobile type of higher nervous activity. At the same time, in winter, the content of TBA-active products in the plasma of blood of animals of the weak type of higher nervous activity is greater by 13.0% compared to the indicators of strong, balanced, mobile type cows. The effect of cortical processes on the content of TBA-active products in the summer is – ɳ2х = 0.28 (P < 0.05), but in winter it decreases to an average of ɳ2х = 0.17. The equilibrium of the cortical processes significantly influenced the TBA- active products content, both in the summer and in winter, è2x2 = 0.24–0.30 (P < 0.05). The mobility of cortical processes does not have a significant effect on the content of TBK-active products. Reliable influence of the type of higher nervous activity (F = 3.86 > FU = 3.01; p = 0.02) on the content of TBC-active products in the blood plasma of cows was established. Then, as the season does not limit the content of TBA-active products in the blood plasma of cows (F = 2.18 <FU = 4.26; p = 0.15). It is proved that the time of year does not affect the main characteristics of cortical processes (F = 0.09 < FU = 3.0; p = 0.96). But only the effect of cortical processes in summer directly correlates with the content of TBA-active products in the blood plasma of cows (r = -0.67; P < 0,05). Thus, the influence of the type of higher nervous activity on the content of TBA-active products in the plasma of cows in different seasons is established. In animals with a weak type of higher nervous activity, a higher content of TBA-active products in plasma was detected.


2018 ◽  
Vol 20 (83) ◽  
pp. 295-298
Author(s):  
Yu.V. Kravchenko-Dovga ◽  
V.I. Karpovsky ◽  
O.V. Danchuk

Cortical mechanisms of regulation of the content of Cuprum in the blood of cows are presented in the article. Experiments were carried out on cows of Ukrainian black-and-rumped breed of second-third lactation period of different types of higher nervous activity. The conducted researches have established that the content of Cuprum in blood of cows of strong types of higher nervous activity does not differ significantly. The content of this trace element in the blood of cows of a strong, balanced, mobile type of higher nervous activity is 12.81–13.35 μmol/dm3. In the blood of weak cows, Cuprum content is 12.22 ± 0.37 μmol/dm3, which is significantly lower by 8.0% (P < 0.05) and 8.5% (P < 0.05) than the indicators of strong animals balanced, mobile and strong balanced inert type of higher nervous activity. It is established that the strength and balance of cortical processes have the same significant effect on the content of Cuprum in the blood of cows – ղ²ᵪ = 0.21 (P < 0.051). Then, as the effect of the motility of the cortical processes on the content of Cuprumum in the blood is unreliable – ղ²ᵪ = 0.06. The conducted regression analysis shows that the balance and mobility of cortical processes are not interrelated with the content of Cuprum in the blood of cows (b = 0.31–0.38). Then, as with the reduction of the strength of the cortical processes per unit, the content of Cuprum in the blood of cows significantly changes in the same direction by 0.53 μmol/dm3 (P < 0.05). The determination coefficient of the strength of the cortical processes and the content of Cuprum in the blood of cows is – 0.258 (P < 0.05), and, consequently, up to 26% of variations in the content of Cuprum in the blood of cows are due to the variability of the strength of the cortical processes. The correlation analysis of the connection of the content of Cuprum in the blood of cows with the main indicators of cortical processes has shown that there is no correlation between the equilibrium and the mobility of the cortical processes with the metal content. Only the tendency for direct correlation connections of the characteristics of cortical processes with the content of Cuprum in blood of cows is established – r = 0.31–0.39. Then, as the strength of cortical processes is significantly correlated with the content of Cuprum in the blood of cows (r = 0.51; P < 0.05). Consequently, the content of Cuprum in the blood of cows of high types of higher nervous activity depends on the main characteristics of cortical processes.


Author(s):  
V. M. Moroz ◽  
S. Yu. Makarov

In the structure of the most important components to ensure the optimal course of processes of psychophysiological adaptation of student’s youth, a special place occupies a degree of psychophysiological readiness of the organism to effectively mastering professionally meaningful skills and actions. The purpose of the study is to determine the peculiarities of changes in the leading indicators of the functional state of higher nervous activity of students of medical institutions of higher education in the dynamics of the academic year. Determination of the level of development of indicators of the functional state of higher nervous activity of students was conducted during the academic year with the use of the licensed computer complex “Efecton Studio”. Statistical processing of the received materials was carried out on the basis of the use of parametric methods using the program package of multidimensional statistical analysis “Statistica 6.1”. The obtained results confirm the presence of certain regularities. First, attention should be paid to the deterioration during the period of stay in institutions of higher education in the medical profile of the expression of such indicators of the functional state of higher nervous activity as the speed of simple and differentiated visual-motor reactions and the balance of nervous processes. Secondly, it is necessary to determine stable results in the dynamics of the academic year, which are characteristic of the indicators of mobility of the nervous processes. Thirdly, it should be emphasized that for indicators of speed of audio-motor reaction the most typical tendency is gradual improvement in the dynamics of time of stay in medical institutions of higher education. Such a variety of palettes of the studied indicators of the degree of development of the leading indicators of the functional state of higher nervous activity of the body of students and students requires to be taken into account when assessing the psychophysiological status of the subjects and the development of a set of diagnostic means for identifying the processes of forming the functional capabilities and adaptive resources of youth, who receive medical education.


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