The Success of Cognitive Activity of Students of the Northern (Arctic) Federal University with Different Levels of Anxietyin Different Time Conditions

2021 ◽  
Vol 18 (1) ◽  
pp. 52-59
Author(s):  
A.I. Taleeva ◽  
◽  
I.T. Madumarova ◽  
N.V. Zvyagina ◽  
◽  
...  
Keyword(s):  
Emotional State ◽  
Cognitive Task ◽  
Cognitive Activity ◽  
Whole Body ◽  
Modern World ◽  
Short Period ◽  
Personal Anxiety ◽  
Psychophysiological Testing ◽  
Short Time ◽  
Different Levels

The dynamic development of the modern world requires the processing and development of a large enough amount of information in a short period of time, which leads to a violation of the psychophysiological and psycho-emotional balance of the person. Violation of the psycho-emotional state leads to the development of increased anxiety. Students need to learn a lot of information in a very short time. The time limit affects students as a stress factor, leads to increased stress and therefore negatively affects the quality of work and in general on the whole body. The aim of the study is to determine the success of cognitive tasks by students of the Northern (Arctic) Federal University with different levels of anxiety in different time conditions. The study used a psychophysiological testing device to determine the level of situational and personal anxiety, to assess the psycho-emotional state used the technique of simple visual-motor reaction, to determine the success of the cognitive task were presented words with one missing letter.

scholarly journals Management of Intraoperative Mechanical Ventilation to Prevent Postoperative Complications after General Anesthesia: A Narrative Review

2021 ◽  
Vol 10 (12) ◽  
pp. 2656
Author(s):  
Alberto Fogagnolo ◽  
Federica Montanaro ◽  
Lou’i Al-Husinat ◽  
Cecilia Turrini ◽  
Michela Rauseo ◽  
...  
Keyword(s):  
Mechanical Ventilation ◽  
Tidal Volume ◽  
Pulmonary Complications ◽  
Point Of View ◽  
Whole Body ◽  
Positive End Expiratory Pressure ◽  
Ventilation Strategies ◽  
Harmful Effects ◽  
Ventilation Induced Lung Injury ◽  
Different Levels

Mechanical ventilation (MV) is still necessary in many surgical procedures; nonetheless, intraoperative MV is not free from harmful effects. Protective ventilation strategies, which include the combination of low tidal volume and adequate positive end expiratory pressure (PEEP) levels, are usually adopted to minimize the ventilation-induced lung injury and to avoid post-operative pulmonary complications (PPCs). Even so, volutrauma and atelectrauma may co-exist at different levels of tidal volume and PEEP, and therefore, the physiological response to the MV settings should be monitored in each patient. A personalized perioperative approach is gaining relevance in the field of intraoperative MV; in particular, many efforts have been made to individualize PEEP, giving more emphasis on physiological and functional status to the whole body. In this review, we summarized the latest findings about the optimization of PEEP and intraoperative MV in different surgical settings. Starting from a physiological point of view, we described how to approach the individualized MV and monitor the effects of MV on lung function.

scholarly journals Presence Effects in Virtual Reality Based on User Characteristics: Attention, Enjoyment, and Memory

Electronics ◽  
2021 ◽  
Vol 10 (9) ◽  
pp. 1051
Author(s):  
Si Jung Kim ◽  
Teemu H. Laine ◽  
Hae Jung Suk
Keyword(s):  
Virtual Reality ◽  
Emotional State ◽  
Eye Gaze ◽  
Emotional Valence ◽  
Media Content ◽  
Eye Tracker ◽  
User Characteristics ◽  
Head Mounted Display ◽  
Age Range ◽  
Different Levels

Presence refers to the emotional state of users where their motivation for thinking and acting arises based on the perception of the entities in a virtual world. The immersion level of users can vary when they interact with different media content, which may result in different levels of presence especially in a virtual reality (VR) environment. This study investigates how user characteristics, such as gender, immersion level, and emotional valence on VR, are related to the three elements of presence effects (attention, enjoyment, and memory). A VR story was created and used as an immersive stimulus in an experiment, which was presented through a head-mounted display (HMD) equipped with an eye tracker that collected the participants’ eye gaze data during the experiment. A total of 53 university students (26 females, 27 males), with an age range from 20 to 29 years old (mean 23.8), participated in the experiment. A set of pre- and post-questionnaires were used as a subjective measure to support the evidence of relationships among the presence effects and user characteristics. The results showed that user characteristics, such as gender, immersion level, and emotional valence, affected their level of presence, however, there is no evidence that attention is associated with enjoyment or memory.

Influence of environmental factors on the psychoemotional state of young athletes

2020 ◽  
pp. 53-63
Author(s):  
Elena Aleksandrovna Potapova ◽  
Elena Viktorovna Scherba ◽  
Dmitriy Alekseevich Zemlyanoy ◽  
Viktoriya Valerievna Danilova ◽  
Viktor Gennadievich Puzyrev ◽  
...  
Keyword(s):  
Female Athletes ◽  
Emotional State ◽  
Sport Activity ◽  
Stressful Events ◽  
Dynamic Monitoring ◽  
Daily Routine ◽  
Young Athletes ◽  
Reactive Anxiety ◽  
Personal Anxiety ◽  
High Level

Sport activity are associated with significant physical and psychological stress and determine the relevance of monitoring the conditions for sports, studying the health of athletes and their regime. The purpose of the study: to study the sanitary and hygienic conditions in sports schools, the features of the daily routine and lifestyle of young athletes and their psycho-emotional state. Materials and methods. The analysis includes data from a study of 70 girls aged 13–15 who are engaged in rhythmic gymnastics. We used methods of sanitary and hygienic research, questionnaires, methods for identifying the level of situational and personal anxiety (Spielberger C. D.) and competitive anxiety (R. Martens), a questionnaire for studying one’s own reaction to stressful events (Greenberg). Results. The number of violations of sanitary and hygienic requirements for the conditions of sports activities have been identified. The most common violations of the day-lack of sleep and stay in the fresh air, a high amount of training load. Moderate personal anxiety was detected in 76 % of athletes, 7 % of respondents — low anxiety, 17 % — high personal anxiety. A high level of reactive anxiety was detected in 24 % of female athletes, and high-level sports anxiety was observed in 25 % of those surveyed. The relationship between the severity of violations of hygiene standards and the level of manifestation of personal and reactive anxiety was Revealed. The age dynamics for all diagnosed types of anxiety was revealed: higher rates of anxiety were observed in the age group of 13 years compared to 14 and 15-year-old athletes. Conclusion. The results of the study showed the need for dynamic monitoring of the state of health, including psycho-emotional state of athletes, allocation of athletes with pronounced errors in the regime to observation groups, carrying out preventive measures to explain the importance of compliance with hygiene rules and monitoring and assistance in their implementation in the lifestyle of young athletes.

scholarly journals Regulation of very-low-density-lipoprotein lipid secretion in hepatocyte cultures derived from diabetic animals

1989 ◽  
Vol 262 (1) ◽  
pp. 313-319 ◽  
Author(s):  
J M Duerden ◽  
S M Bartlett ◽  
G F Gibbons
Keyword(s):  
Low Density Lipoprotein ◽  
Density Lipoprotein ◽  
Inhibitory Effect ◽  
Diabetic Rats ◽  
Whole Body ◽  
Very Low Density Lipoprotein ◽  
Low Density ◽  
Short Period ◽  
Streptozotocin Diabetic Rats ◽  
Cholesterol Secretion

Hepatocytes were derived from 2-3-day streptozotocin-diabetic rats and maintained in culture for up to 3 days. Compared with similar cultures from normal animals, these hepatocytes secreted less very-low-density-lipoprotein (VLDL) triacylglycerol, but the decrease in the secretion of VLDL non-esterified and esterified cholesterol was not so pronounced. This resulted in the secretion of relatively cholesterol-rich VLDL particles by the diabetic hepatocytes. Addition of insulin for a relatively short period (24 h) further decreased the low rates of VLDL triacylglycerol secretion from the diabetic hepatocytes. The secretion of VLDL esterified and non-esterified cholesterol also declined. These changes occurred irrespective of whether or not exogenous fatty acids were present in the culture medium. Little or no inhibitory effect of insulin was observed after longer-term (24-48 h) exposure to the hormone. Both dexamethasone and a mixture of lipogenic precursors (lactate plus pyruvate) stimulated VLDL triacylglycerol and cholesterol secretion, but not to the levels observed in hepatocytes from normal animals. The low rate of hepatic VLDL secretion in diabetes contrasts with the increase in whole-body VLDL production rate. This suggests that the intestine is a major source of plasma VLDL in insulin-deficient diabetes.

scholarly journals Respiratory response to passive limb movement is suppressed by a cognitive task

2004 ◽  
Vol 97 (6) ◽  
pp. 2112-2120 ◽  
Author(s):  
Harold J. Bell ◽  
James Duffin
Keyword(s):  
Cognitive Task ◽  
Cognitive Activity ◽  
Feedback Mechanism ◽  
Passive Movement ◽  
Afferent Feedback ◽  
Frequency Change ◽  
Breathing Frequency ◽  
Respiratory Response ◽  
Computer Based ◽  
Fast Increase

Feedback from muscles stimulates ventilation at the onset of passive movement. We hypothesized that central neural activity via a cognitive task source would interact with afferent feedback, and we tested this hypothesis by examining the fast changes in ventilation at the transition from rest to passive leg movement, under two conditions: 1) no task and 2) solving a computer-based puzzle. Resting breathing was greater in condition 2 than in condition 1, evidenced by an increase in mean ± SE breathing frequency (18.2 ± 1.1 vs. 15.0 ± 1.2 breaths/min, P = 0.004) and ventilation (10.93 ± 1.16 vs. 9.11 ± 1.17 l/min, P < 0.001). In condition 1, the onset of passive movement produced a fast increase in mean ± SE breathing frequency (change of 2.9 ± 0.4 breaths/min, P < 0.001), tidal volume (change of 233 ± 95 ml, P < 0.001), and ventilation (change of 6.00 ± 1.76 l/min, P < 0.001). However, in condition 2, the onset of passive movement only produced a fast increase in mean ± SE breathing frequency (change of 1.3 ± 0.4 breaths/min, P = 0.045), significantly smaller than in condition 1 ( P = 0.007). These findings provide evidence for an interaction between central neural cognitive activity and the afferent feedback mechanism, and we conclude that the performance of a cognitive task suppresses the respiratory response to passive movement.

scholarly journals Principal component analysis implementation for brainwave signal reduction based on cognitive activity

2017 ◽  
Vol 3 (3) ◽  
pp. 125 ◽  
Author(s):  
Ahmad Azhari ◽  
Murein Miksa Mardhia
Keyword(s):  
Principal Component Analysis ◽  
Cognitive Task ◽  
Cognitive Activity ◽  
Electrical Potential ◽  
Principal Component ◽  
Component Analysis ◽  
Wave Form ◽  
Brain Response ◽  
Cumulative Rate ◽  
Main Component

Human has the ability to think that comes from the brain. Electrical signals generated by brain and represented in wave form.  To record and measure the activity of brainwaves in the form of electrical potential required electroencephalogram (EEG). In this study a cognitive task is applied to trigger a specific human brain response arising from the cognitive aspect.  Stimulation is given by using nine types of cognitive tasks including breath, color, face, finger, math, object, password thinking, singing, and sports. Principal component analysis (PCA) is implemented as a first step to reduce data and to get the main component of feature extraction results obtained from EEG acquisition. The results show that PCA succeeded reducing 108 existing datasets to 2 prominent factors with a cumulative rate of 65.7%. Factor 1 (F1) includes mean, standard deviation, and entropy, while factor 2 (F2) includes skewness and kurtosis.

scholarly journals Characteristics of emotional state and cognitive processes in patients with ischemic stroke in acute period

2019 ◽  
Vol 3 (24) ◽  
pp. 40-44
Author(s):  
Yu. V. Kotsyubinskaya ◽  
A. V. Kazakov ◽  
N. Yu. Safonova
Keyword(s):  
Ischemic Stroke ◽  
Cognitive Processes ◽  
Emotional State ◽  
Therapeutic Process ◽  
Anxiety And Depression ◽  
Anterior Cortex ◽  
Acute Period ◽  
Relationship Of ◽  
The Relationship ◽  
Different Levels

Currently, studies aimed at assessing the emotional state and cognitive processes associated with the processing of emotionally determined information in patients with ischemic stroke, as well as finding the relationship between them are particularly relevant, mainly for the subsequent optimization of the therapeutic process. In order to identify the features of the emotional state and cognitive processes, a group of patients with ischemic stroke in the acute period in the amount of 25 people was examined. It was established that in patients with a lesion in the anterior cortex, depressive states in the acute period of stroke are more pronounced. Patients successfully reproduce emotionally significant words in comparison with neutral words; an interrelation between the level of anxiety and depression was found, which indicates that these states are comorbid. But, in turn, the relationship of the severity of anxiety and depression with the cognitive processes of recognition and reproduction, as well as differences in mnestic and gnostic activity in patients with different levels of anxiety and depression were not identified. After the treatment with Semax an improvement was noted.

scholarly journals Radicalisation of Adolescents and Youth: In Search of Explanations

2017 ◽  
Vol 13 (3) ◽  
pp. 32-40 ◽  
Author(s):  
A.D. Tikhonova ◽  
N.V. Dvoryanchikov ◽  
A. Ernst-Vintila ◽  
I.B. Bovina
Keyword(s):  
Young People ◽  
Main Part ◽  
Modern Society ◽  
Integral Characteristic ◽  
Modern World ◽  
Social Psychological ◽  
The Subject ◽  
Psychological Knowledge ◽  
Different Levels

The main purpose of the presented article is to reveal the potential of social psychological knowledge for the analysis of radicalisation of young people. In the introduction, the features of socialisation in the modern world are discussed. Special attention is drawn to the role of the Internet in the socialisation of adolescents and young people. It is noted that the dominance of audiovisual information contributes to the reduction of reflexivity and promotes the so-called clip thinking, which has become an integral characteristic of adolescents and young people. It is emphasized that life in the modern society is associated with a number of changes taking place simultaneously at different levels, and uncertainty has become its important feature. Extremism and radicalisation are considered as a reaction to uncertainty, a way to overcome it. The main part of the article is devoted to the analysis of models of radicalization describes in various works. Finally, perspectives of further investigation into the subject are outlined.

scholarly journals Metacognition: A new cognitive paradigm

Psihologija ◽  
2004 ◽  
Vol 37 (2) ◽  
pp. 149-161 ◽  
Author(s):  
Milos Kankaras
Keyword(s):  
Cognitive Functioning ◽  
Cognitive Processes ◽  
Cognitive Activity ◽  
Human Mind ◽  
Short Period ◽  
Wide Range ◽  
Thinking Processes ◽  
And Behavior ◽  
And Control ◽  
Metacognitive Experiences

This article reviews concept of metacognition, defined as: (a) knowledge about ones own cognitive activity, (b) strategies to monitor and regulate cognitive activity and behavior, and (c) subjective or metacognitive experiences which comes from some changes or temporary difficulties in cognitive functioning. While describing different conceptualizations of metacognition, its development, fields of application, relation with intelligence, and its constrictions and ambiguity, we attempt to present new and emerging metacognitive paradigm, which is, for a relatively short period, succeeded to improve, expand, and redefine wide range of theoretical and practical fields in psychology, on new and original way. How do we become conscious of our own cognitive processes? What role and significance that consciousness has, what is the functional level above thinking processes and how that level, which monitor and control cognitive activity, works. Metacognition is concept that presents, as so far, the most important insight in those human mind areas, which, although very important, remained on the margin of psychological investigations until now.

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