Structural transformations of the cyto- and fibroarchitectonics of the human frontal cerebral cortex from birth to 20 years

Tsekhmistrenko, T. A.; Chernykh, N. A.; Shekhovtsev, I. K.

doi:10.1134/s0362119710010032

Cited by 5 publications

(3 citation statements)

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“…The CNS functional state at the beginning of the school year was characterized by the absence of pronounced sex differences between the boys and girls of the 11 th form in terms of the main functional indicators of CNS: the number of missed and pre-emptive stimuli, the number of errors in differentiation, the time of CVMR, the mode (Mo) and amplitude of the mode (AMo), the minimum reaction time, that corresponds to the ontogenesis period (Table 3). At the same time, at the beginning of the academic year, the girls, who were leaving school, differed from the boys in significantly lower indicators of the standard deviation of the reaction time and maximum time of CVMR (Table 3), which indicates a higher stability of the CNS functioning and is consistent with data on the advanced development of the nervous system of girls compared to boys [9]. Note: Р1 -reliability of differences compared to the beginning of the school year; Р2reliability of sex differences; in parentheses the number of examined; Мо -mode; АМоmode amplitude, c. u.…”

Section: Beginning Of the Academic Year (N=61) р2supporting

confidence: 81%

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The psychical status and functional state of the central nervous system of high school leavers in the dynamics of the academic year

2020

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The purpose of the study was to research the change in the psychical status and functional state of the central nervous system of high school leavers taking the Unified State Exam (USE) in the dynamics of the academic year. 85 high school leavers of the 11th form were put under study. The functional state of the CNS was determined by the method of computer chronoreflexometry, psychical status – with the help of “the Methodology for Diagnosing Learning Motivation and Emotional Attitude to Learning in Middle and High School”, “Spielberger's Methodology for Identifying Personal and Situational Anxiety”, and “Determination of susceptibility to stress”. It was found that the boys and girls of the 11th form had the maximum level of motivation for learning at the beginning of the school year. By the end of the school year, the girls' level of motivation for learning decreases while the achievement motivation and anxiety level increase significantly. The level of personal anxiety among girls is also considerably higher than among boys. At the beginning of the school year stress resistance among boys is higher than among girls. Рreparation for the USE during the academic year cause significant changes in the functional state of the CNS, which are more pronounced in schoolgirls. The results of the study can be put into the basis for monitoring the state of psychosomatic health of high school leavers as well as be used as markers when performing psychocorrectional activities to restore an optimum functional CNS state and a psychoemotional status.

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Section: Beginning Of the Academic Year (N=61) р2supporting

confidence: 81%

“…Summing up, one should pay attention to the fact that one of the main reasons for psychoemotional stress and the risk of adaptation diseases of secondary school leavers is the incompleteness of the processes of functional maturation of CNS of 17-year-old students [9]. Psychosocial risk factors can also make a significant contribution [15].…”

Section: Discussionmentioning

confidence: 99%

The psychical status and functional state of the central nervous system of high school leavers in the dynamics of the academic year

2020

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“…На современном этапе развития нашего общества, характеризующегося сложными социально-экономическими изменениями, остро встает проблема здоровья населения. Одной из основных причин психоэмоционального и нервного перенапряжения, появления риска возникновения нарушений в состоянии здоровья обучающихся и/или усугубления уже существующих патологий является незавершенность процессов функционального созревания ведущих адаптационных систем [11,13].…”

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The Functional Status of Hypothalamic-Pituitary-Adrenal and Hypothalamic-Pituitary-Gonadal Axis in Young Women With Cardiovascular Disease

Milashechkina

Джандарова

2020

hsm

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Aim. The article aims to evaluate the functional status of the hypothalamic-pituitary-adrenocortical and hypothalamic-pituitary-gonadal systems in females with vascular dystonia from a special medical group. Materials and methods. The study involved first-year female students divided into 3 groups: 1 (control, n = 45) – apparently healthy students; 2 (experimental, n = 27) – students from a special medical group with vascular dystonia (VVD): 1st experimental (n = 12) – students diagnosed with VVD of the hypertensive type, 2nd experimental (n = 15) – students with VVD of the hypotonic type. The functional status of the hypothalamic-pituitaryadrenocortical and hypothalamic-pituitary-gonadal systems was revealed by the concentration of cortisol (K), testosterone (T) and estradiol (E) in saliva and the E / T ratio. Results. The content of cortisol in saliva in females with VVD in both experimental groups was significantly higher (P < 0.001, P < 0.05) than in the control group. Cortisol levels are higher in females with hypertensive VVD than in females with hypotonic VVD (P < 0.05). In females with VVD of the hypotonic type, the level of estradiol is higher by 24% than in the control group, and in females with VVD of the hypertensive type, estradiol is more than twice higher. The concentration of testosterone was significantly higher in both experimental groups compared to the control group (P < 0.001), an increase in T was observed in females with VVD of the hypertensive type. The E/T ratio in students with VVD in both groups showed no significant changes compared to the control group. Significant positive differences were revealed in females with VVD of the hypertensive type compared with VVD of the hypotonic type (P < 0.01). Conclusion. The results of the study showed that changes in hormone secretion can be considered as a chain of closely connected reactions in the regulatory mechanisms of the cardiovascular system for maintaining self-regulation of the body and ensuring adaptation under stress. Therefore, the disruption of any link requires the use of reserve capacities of the body, which affects the performance of the leading adaptation systems.

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Morphofunctional Approach to Studies of the Properties of the Prefrontal Cortex in Adolescents

Tsekhmistrenko

2022

Neurosci Behav Physi

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Structural transformations of the cyto- and fibroarchitectonics of the human frontal cerebral cortex from birth to 20 years

Cited by 5 publications

References 5 publications

The psychical status and functional state of the central nervous system of high school leavers in the dynamics of the academic year

The psychical status and functional state of the central nervous system of high school leavers in the dynamics of the academic year

The Functional Status of Hypothalamic-Pituitary-Adrenal and Hypothalamic-Pituitary-Gonadal Axis in Young Women With Cardiovascular Disease

Morphofunctional Approach to Studies of the Properties of the Prefrontal Cortex in Adolescents

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