Controlling characters in a virtual reality (VR) environment can lead to the interiorization of their body dimensions by the recipients. The possible preservation of these distortions in their psyche will indicate a high degree of psychological impact of a VR on a person and the potential danger of developing depersonalization of the recipients and their dependence on such stimulation. The study of the stability of these distortions is necessary in the context of ensuring the safety of the impact of VR environments on the human psyche. The main focus of the study is on the perception distortions of human body dimensions, as they are sensed by people immersed in a VR environment, and their dynamics depending on the number of immersions. The impact of the virtual reality environment was simulated using the Freedom Locomotion VR application. One virtual reality immersion session took 15 minutes. To obtain psychometric indicators of the subjects perception of their own body dimensions, the technique Measurements according to M. Feldenkrais was used. All the participants (N = 45, three experimental groups) underwent a mandatory preliminary measurement using this technique (several hours before exposure) and a final measurement (one day after the last exposure). At the same time, the results of preliminary measurements were taken as indicators of the subjects habitual perception of their own body dimensions and were considered in each data processing as a comparison group. Free movement in a VR environment leads to distortions in the subjects perception of their own body dimensions. In all the experimental groups, there was a tendency to exaggerate body dimensions immediately after immersions, which indicates the qualitative similarity of these distortions. The effect of repetitive immersion in a VR environment on the perception of body dimensions is that it increases awareness in perceiving body parts that are least active at the time of immersion. Controlling an anthropomorphic character in a VR leads to an increase in the subjective significance of the recipients own body perception and an increased concentration of attention on the parameters least involved in immersion. The results of the study show that an increased level of awareness in perceiving their own bodies is characteristic of the subjects who have experience of repetitive immersions in a VR environment in the guise of an anthropomorphic character. Controlling a bodily projection in a VR headset does not cause its long-term interiorization, but has a positive effect on the formation of personal corporeality.
The article analyzes the relationship between special chemical abilities and actual academic performance. The problem of students’ adaptation to studying at the medical university is considered. Subjective self-evaluative components of adaptation associated with the general emotional discomfort of students during their undergraduate studies are well investigated in modern scientific literature. At the same time, objective criteria of student success in the learning process, special abilities, rarely act as a subject of research in this context. It is special abilities that act as prerequisites for a student's success in mastering the material and high academic performance. The given research presents the data of an empirical study of the level of development of special chemical abilities in 2nd year students of the medical faculty of the Ryazan State Medical University and their relationship with actual academic performance and self-assessment components of adaptation – satisfaction with one’s success and interest in the learning process. It has been established that developed chemical abilities have a statistically pronounced relationship with a high level of student satisfaction with their academic success, as well as with high academic performance. The conclusion is made about the high importance of the development of chemical abilities in the medical students’ adaptation to studying at a university.
Person’s immersion in computer virtual reality (VR) is accompanied by numerous distortions in his/her perception due to the replacement of sensory stimuli coming through visual, auditory and partially proprioceptive channels. In this case, the person’s own body becomes an immersion tool, since its movements indirectly affect the movement of the avatar in VR. Performing actions in VR on behalf of the avatar contributes to the appearance of distortions in the perception of one’s own body due to the diffuse effect of actualizing the operational image at the moment of purposeful activity (the subjective body image is modified in accordance with the need to adapt to VR conditions). There are various ways of immersing in VR, taking into account the different degree of involvement of individual parts of the recipient’s real body in controlling a digital character. Thus, the full-body tracking (FBT) technology is becoming widespread, allowing the use of almost all human gross motor skills for projection onto the movements of the avatar. The purpose of the study was to establish the specific features of the distortion of a person’s perception of the size of his/her own body, after its being immersed in computer virtual reality, and the control over the avatar using the FBT technology. The study was conducted in two stages (in 2020 and 2021) in order to compare the intensity and direction of body image distortions of the subjects when they were immersed with and without the FBT technology. The OhShape VR app for mobile immersion without FBT and a modification of the VR Chat app for mobile immersion with FBT were used as experimental exposures. Psychometric data on the subjects’ perception of their own bodies were obtained using the psychometric data on the subjects’ perception of their own bodies were obtained using Moshe Feldenkrais’ methods for physical measurements. According to the results of the study, the use of FBT during immersion in VR leads to distortions in the perception of various body sizes by the subjects, including the trunk and legs, while mobile immersion without the use of FBT only causes distortions in the perception of the dimensions of the upper shoulder girdle. It should be noted that this observation testifies to the connection of distortions with the facts of the involvement of the corresponding parts of the real body of the subjects in the process of controlling the avatar. It is concluded that there are specific distortions in the perception of a person’s own body when being immersed in VR using FBT. Finally, an assumption is made about the possible connection of these distortions with the success of performing intra-environment mobile tasks.
АннотацияЦель. Выявление искажений в восприятии человеком собственного тела в VR-пространстве, обусловленных спецификой антропоморфного персонажа. Процедура и методы. В исследовании приняли участие 35 добровольцев -студентов вузов г. Рязани. В рамках экспериментального воздействия они погружались в VR-среду «Baby Hands VR». Для оценки искажений восприятия собственного тела была использована методика «Промеры по М. Фельденкрайзу» (И. А. Соловьёва). Результаты. Установлены статистически достоверные преувеличения в восприятии ширины головы, длины плеча, плечевой кости и предплечья, а также ширины груди. Эти искажения приближают субъективную схему тела человека к пропорциям внутрисредового персонажа. Теоретическая и/или практическая значимость. Полученные результаты свидетельствуют о возникновении особого психического состояния при погружении человека в компьютерную виртуальную реальность и могут быть использованы при разработке психокоррекционных программ в различных подходах. Ключевые слова: виртуальная реальность, VR, образ тела, схема тела, искажения образа тела
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