Functional State of the Brain of Elderly Women at Rest and in Mental Stress under Varying Geomagnetic Conditions

Allakhverdiev, A. R.; Аллахвердиева, А. А.; Babayev, Elchin S.

doi:10.1134/s0362119720020024

Cited by 2 publications

(1 citation statement)

References 17 publications

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“…LPC root seeking method is to establish an all-pole model Q(z) for the LPC prediction coefficient of speech signal and solve the denominator polynomial root of the model to calculate the formant center frequency and bandwidth. Its characteristic is that it can accurately calculate the center frequency and bandwidth of formant, but the calculation amount of solving polynomial complex root is too large [19][20][21]. Assuming P-order LPC analysis of signal X(m), there are…”

Section: Formant Detectionmentioning

confidence: 99%

Application of Virtual Reality Technology in the Recognition System for Overcoming Anxiety and Psychological Pressure of Family Elderly

Gao

2022

Mobile Information Systems

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When the elderly enter the old age, their physical functions gradually decline; their physical strength, vision, and hearing are weakened; and their self-care ability gradually decreases with the increase of age. At the same time, it is accompanied by different degrees of anxiety and psychological problems. The rapid development of virtual reality technology in recent years provides a way to solve this problem, and high-performance computer and processing technology are the keys to directly affect the performance of the system. The existing research is more about the material and spiritual life of the elderly, but the research on their psychological status is relatively insufficient. From the perspective of mental health, this study makes a comprehensive and objective empirical study on the psychological status of family elderly. Based on virtual reality (VR), by extracting heart rate variability (HRV) features from the elderly, this paper establishes a model to identify the psychological pressure of family elderly, which solves the problem that the elderly have adverse effects on their body, mind, and life due to long-term psychological pressure. The paper analyzes the accuracy of KNN, CNN, and RFC models in identifying three psychological stress states: relaxation and low-pressure state, relaxation and medium-pressure state, and relaxation and high-pressure state. When the pressure is higher, the accuracy of the three models will be better than that of the lower pressure state. Under high pressure, the accuracy of CNN and RFC is close, but RFC is slightly better than CNN, and the accuracy of RFC model is as high as 95.02%.

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Section: Formant Detectionmentioning

confidence: 99%

Application of Virtual Reality Technology in the Recognition System for Overcoming Anxiety and Psychological Pressure of Family Elderly

Gao

2022

Mobile Information Systems

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The Possible Effect of Space Weather Factors on Various Physiological Systems of the Human Organism

Zenchenko

Бреус

2021

Atmosphere

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A systematic review of heliobiological studies of the last 25 years devoted to the study of the potential influence of space weather factors on human health and well-being was carried out. We proposed three criteria (coordinates), according to which the work on solar–biospheric relations was systematized: the time scale of data sampling (years, days, hours, minutes); the level of organization of the biological system under study (population, group, individual, body system); and the degree of system response (norm, adaptation, failure of adaptation (illness), disaster (death)). This systematic review demonstrates that three parameters mentioned above are closely related in the existing heliobiological studies: the larger the selected time scale, the higher the level of estimated biological system organization and the stronger the potential response degree is. The long-term studies are devoted to the possible influence of solar activity on population disasters, i.e., significant increases in morbidity and mortality. On a daily scale, a probable effect of geomagnetic storms and other space weather events on short-term local outbreaks of morbidity is shown as well as on cases of deterioration in people functional state. On an intraday scale, in the regular functioning mode, the heart and brain rhythms of healthy people turn to be synchronized with geomagnetic field variations in some frequency ranges, which apparently is the necessary organism’s existence element. The applicability of different space weather indices at different data sampling rates, the need to take into account the contribution of meteorological factors, and the prospects for an individual approach in heliobiology are discussed. The modern important results of experiments on modeling the action of magnetic storms in laboratory conditions and the substantiation of possible theoreical mechanisms are described. These results provide an experimental and theoretical basis for studies of possible connections of space weather and human health.

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Functional State of the Brain of Elderly Women at Rest and in Mental Stress under Varying Geomagnetic Conditions

Cited by 2 publications

References 17 publications

Application of Virtual Reality Technology in the Recognition System for Overcoming Anxiety and Psychological Pressure of Family Elderly

Application of Virtual Reality Technology in the Recognition System for Overcoming Anxiety and Psychological Pressure of Family Elderly

The Possible Effect of Space Weather Factors on Various Physiological Systems of the Human Organism

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