• KSII Transactions on Internet and Information Systems (TIIS)
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• 제16권5호
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• pp.1584-1596
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• 2022

According to a survey published in an authoritative journal in January 2020, the globalincidence rate of mental illness is 8.3% for men and 10.6% for women, which indicates thatmental illness has become a globally recognized obstacle. Therefore, specific psychotherapy including mental illness will become an important research topic. It is very effective forpatients with special mental diseases, such as mental illness, to reduce their mental reaction byexposure therapy; the system uses the virtual reality system of medical images processed by learningalgorithm to reproduce the effect of virtual reality exposure method of the high scene of transparent ladder. Compared with the old invasive exposure scene, the results show that theimprovement of both conditions has obvious effect, and the effect of human treatment underthe two conditions is not good. There are obvious differences, which show that virtual reality model will gradually replace the on-the-spot feeling. Finally, with more and more researchers have put forward a variety of other virtual reality image processing models, the research of image processing has gradually become more and more interested.

• 대한물리의학회지
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• 제14권4호
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• pp.103-113
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• 2019

PURPOSE: The purpose of this study was to determine if virtual reality-based exercise was effective in balance, gait, and falls efficacy in patients with Parkinson's disease (PD). METHODS: Thirty patients with PD were assigned randomly to the experimental (n=15) or control groups (n=15). The experimental group performed virtual reality-based exercise and the control group underwent conventional physical therapy for 30minutes, five times per week for four weeks. A force platform system, the Korean version of the Berg Balance Scale (K-BBS), the six-minute walking test (6MWT), and the Korean Version of the Falls Efficacy Scale (K-FES) were used to evaluate balance, gait, and falls efficacy. Wilcoxon signed-rank test and Mann-Whitney U test were used to examine the within- and between-group differences after training, respectively. RESULTS: Changes in the K-BBS score (p<.001) and fall efficacy (p<.01), following the intervention were significantly greater in the experimental group than in the control group whereas significant group difference were not observed for the anterior-posterior and mediolateral postural sway lengths. The change in the ground reaction force (p<.001) and 6MWT values (p<.05) were significantly greater after intervention in patients in the experimental group than in the control group, whereas a significant group difference was not observed for the step and stride lengths. CONCLUSION: This study indicates that virtual reality-based exercise is an effective intervention for improving balance, gait, and fall efficacy in patients with PD.

• 한국융합학회논문지
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• 제13권1호
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• pp.1-12
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• 2022

본 연구에서는 웹기반 인지재구조화 교육과 결합된 VR 노출 프로그램이 사회 불안 감소에 미치는 영향을 확인하였다. 실험 집단(n=12)은 웹기반 인지 재구조화 교육과 가상현실노출 프로그램(VRET)에 4회기 참석하였고, 비교집단(n=15)은 동일한 가상현실노출 프로그램(VRET) 이외에 연설기법에 대한 교육을 받았다. 두 집단 모두 프로그램 참여 전,후에 자기보고식 증상심각도 척도와 암묵적 해석 편향을 측정하였으며, 4주 후에 추후평가를 실시하였다. 프로그램 직후 실험집단과 비교집단 모두 사회적 불안 수준이 감소하였으나, 4주가 지난 후 실험집단에서만 긍정적인 해석 편향이 증가하였고, 부정적인 해석 편향이 감소하였으며, 감소된 사회불안 수준이 유지되었다. 이러한 결과는 VRET 치료효과를 증진시키기 위해서 자신의 생각에 대한 객관적 점검을 시도해 볼 수 있는 인지적 개입이 결합될 필요가 있음을 시사한다.

• 대한불안의학회지
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• 제12권2호
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• pp.69-78
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• 2016

Objective : Disaster causes psychological distress to a large number of people in a short period of time, by both direct and indirect exposure to traumatic events embedded in various realms of disaster experience. Optimal, well-planned treatment interventions should follow from the early acute period to recovery phase, extending up to several months later. In this context, there is an increasing need for systemic review to gain comprehensive insights for disaster interventions. These need to be added to public policy, and for the prevention and treatment of disaster-related psychopathology. Here, we review the published studies on psychological interventions for disaster-related posttraumatic stress disorder. Methods : Specific psychological interventions regarded as effective treatments for have been selected for this review, such as CBT (Cognitive-Behavior Therapy), Exposure Therapy, EMDR (Eye Movement Desensitization & Reprocessing), SIT (Stress Inoculation Therapy) and Psychoeducation. In addition, natural disasters, industrial disasters, and accidents involving aircraft and ships were also categorized as disasters, along with war and combat trauma. Results : Cognitive behavior therapy and exposure therapy had the strongest research support for effectiveness, and could be considered as the first-choice treatment for disaster-related PTSD. The second line of treatment is EMDR, although this treatment modality has the advantage of reaching certain treatment improvements in fewer sessions. However, the effects of SIT and psychoeducation to the survivors of disasters, remains unclear at this point. Additionally, we propose the possibilities of using virtual reality component and imagery rescripting as modified forms of traditional cognitive behavior therapy and exposure therapy. Conclusion : Cognitive behavior therapy and exposure therapy, deemed effective treatments for various trauma, are considered to be effective for survivors from disasters. However, the efficacy of other interventions has not yet been examined methodologically in well-designed studies, such as randomized controlled trials. In particular, future empirical studies are needed, since it is difficult to conclude that psychological interventions have similar effects on different types of disasters.

• The Journal of Korean Physical Therapy
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• 제36권1호
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• pp.39-44
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• 2024

Purpose: Cybersickness is a type of motion sickness induced by virtual reality (VR) or augmented reality (AR) environments that presents symptoms including nausea, dizziness, and headaches. This study aimed to investigate how cathodal transcranial direct current stimulation (tDCS) alleviates motion sickness symptoms and modulates brain activity in individuals experiencing cybersickness after exposure to a VR environment. Methods: This study was performed on two groups of healthy adults with cybersickness symptoms. Subjects were randomly assigned to receive either cathodal tDCS intervention or sham tDCS intervention. Brain activity during VR stimulation was measured by 38-channel functional near-infrared spectroscopy (fNIRS). tDCS was administered to the right temporoparietal junction (TPJ) for 20 minutes at an intensity of 2mA, and the severity of cybersickness was assessed pre- and post-intervention using a simulator sickness questionnaire (SSQ). Result: Following the experiment, cybersickness symptoms in subjects who received cathodal tDCS intervention were reduced based on SSQ scores, whereas those who received sham tDCS showed no significant change. fNIRS analysis revealed that tDCS significantly diminished cortical activity in subjects with high activity in temporal and parietal lobes, whereas high cortical activity was maintained in these regions after intervention in subjects who received sham tDCS. Conclusion: These findings suggest that cathodal tDCS applied to the right TPJ region in young adults experiencing cybersickness effectively reduces motion sickness induced by VR environments.

• 대한물리의학회지
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• 제11권1호
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• pp.61-69
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• 2016

PURPOSE: This study was conducted to investigate the effect of the virtual reality training (VRT) using 3-dimensional video gaming technology on spatiotemporal gait parameters in older adults. METHODS: The study participants were divided into two groups: the VRT group and the control group. Those in the VRT group were enrolled in a VRT, which was conducted for 60 min per day, two times a week, during the 6-week research. The Wii-Fit balance board game was used for the VRT intervention. The VRT consisted of 6 different types of games, namely, jogging, swordplay, ski jump, hula hoop, tennis, and step dance. A 3-dimensional TV was used for 3-dimensional display. Participants in both the groups received 3 sessions of fall prevention education, at the first, third, and fifth weeks. Their gait parameters were measured by using OptoGait. RESULTS: After 6 weeks of the VRT, the spatial gait parameters of the participants, that is stride length and step length, were significantly improved compared with those of the control group participants (p<0.05). The temporal gait parameters, such as velocity, cadence, stride time, and step time, also showed improvement after the completion of the VRT training (p<0.05). Both the temporal and spatial gait parameters of the VRT group participants showed improvement after 6 weeks of the program compared with those of the control group participants (p<0.05). CONCLUSION: The VRT using 3-dimensional video gaming technology might be beneficial for improving gait parameters to prevent falls among older adults.

• 만화애니메이션 연구
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• 통권41호
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• pp.307-336
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• 2015

가상현실 기술은 미래 우리의 생활에 미칠 파급효과가 큰 주목해야 할 기술 중 하나이다. 현재 다양한 분야에서 사용되고 있는 가상현실 기술은 특히 의료분야에 있어 새로운 패러다임을 제공할 것이다. 이 기술을 이용한 공포증 치료는 국내외에서 시행되고 있으며, 치료 효과 면에서도 효과성을 인정받아 점점 그 입지를 굳혀가고 있는 실정이다. 특히, 가상현실 기술을 이용하여 정신과 치료를 시도한 것은 공포증 치료가 처음으로 가상현실 기술을 이용한 치료 중 가장 긴 역사를 가지고 있다. 본 연구는 가상현실 기술을 이용한 공포증 치료를 소개하고, 국내외의 치료, 연구 현황을 조사하여 분석한다. 그 결과 가상현실 기술을 이용한 공포증 치료는 보조적인 수단으로 많이 사용되고 있으며, 국내보다 국외의 사용성이 더 활발하였다. 또한 국외 연구 현황에 있어 저널을 제한했음에도 불구하고 정량적인 면에서 약 2배 이상 차이가 났으며, 연구 주제에 있어 다각적 연구가 진행되었다. 이러한 양상의 차이는 국외의 경우 치료환경에 필요한 리소스를 정부로부터 제공 받고 이에 상응하는 연구와 치료가 이루어지는 형태로 정부 기관 연구가 조화를 이루고 있다. 따라서 검증된 전통적 노출치료 기법을 가상현실 기술을 이용해 활용하기 위해서는 사회 구성원들이 필요로 하는 심리치료에 대한 수요를 가늠하고, 정부는 이에 필요한 정보를 제공해야 한다.

• The Korean Journal of Pain
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• 제34권3호
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• pp.304-314
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• 2021

Background: The study investigated virtual reality (VR) immersion in alleviating procedure-related pain in patients with chronic pain undergoing fluoroscopy-guided minimally-invasive intervention in a prone position at an outpatient clinic. Methods: In this prospective randomized controlled study, 38 patients undergoing lumbar sympathetic ganglion block were randomized into either the VR or the control group. In the VR group, procedure-related pain was controlled via infiltration of local anesthetics while watching a 30-minute VR hypnotic program. In the control group, the skin infiltration alone was used, with the VR device switched off. The primary endpoint was an 11-point score on the numerical rating scale, indicating procedure-related pain. Patients' satisfaction with pain control, anxiety levels, the need for additional local anesthetics during the procedure, hemodynamic stability, and any adverse events were assessed. Results: Procedure-related pain was significantly lower in the VR group (3.7 ± 1.4) than in the control group (5.5 ± 1.7; P = 0.002). Post-procedural anxiety was lower in the VR group than in the control group (P = 0.025), with a significant reduction from pre-procedural anxiety (P < 0.001). Although patients' satisfaction did not differ significantly (P = 0.158) between the groups, a higher number of patients required additional local anesthetics in the control group (n = 13) than in the VR group (n = 4; P = 0.001). No severe adverse events occurred in either group during the study. Conclusions: VR immersion can be safely used as a novel adjunct to reduce procedural pain and anxiety during fluoroscopic pain intervention.

• International Journal of Internet, Broadcasting and Communication
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• 제14권3호
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• pp.101-107
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• 2022

In Korea, the military has been conducting counseling forthe preemptive detection of psychologically unstable soldiers to prevent unexpected accidents and to help them adapt to military life. However, several soldiers feel anxious about face-to-face counseling with military officers and they have difficulty expressing themselves. Video See-Through HMD is a state-of-the-art mixed reality device that converts the user's real view into a digital view, which leads users to feel the actual situation as the virtual. To validate its usefulness as a new psychological counseling aid, we investigated 11 army soldiers who are under the counseling program in barracks. During the counseling conversation, participants were asked to wear or take off the Video See-Through HMD repeatedly. All conversations were recorded for behavioral observation. As a result, 80% of the soldiers showed a relatively stable state of mind when wearing the Video See-Through HMD, which leads them to be innocent and frank about their concerns. This method could improve the effectiveness of counseling to prevent unexpected accidents caused by unnoticeable psychological instabilities of the clients.

• 한국HCI학회:학술대회논문집
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• 한국HCI학회 2006년도 학술대회 2부
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• pp.639-645
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• 2006

During abstinence from alcohol, craving is elicited by the cues and contexts previously associated with alcohol, and contributes to relapse. To prevent the craving and relapse experienced by alcoholics, cue-exposure therapy (CET) has been used to extinguish the association between alcohol and alcohol-related cues and contexts. This study applied CET, using a virtual reality (VR) system, to eight members of an Alcoholics Anonymous group, in eight sessions. Cues and contexts most likely to elicit an urge to drink were selected through a preliminary survey in order to compose VR-CET scenarios: a glass, bottle, food, and a bar were judged to be the most tempting for people in alcohol dependence and abstinence. By these cues and contexts, a Japanese style pub and a western bar were composed. Each session was administered for 30 minutes by a psychiatrist and included an introduction, immersion, VR navigation, interviews about feelings, and self-report questionnaires about cravings. The eight sessions consisted of initial and closing sessions, and six cue- and context-focused sessions. As a result, a reduction in cue-elicited craving after VR-CET was reported. A mean score of 15.75 (SD = 10.91) on the Alcohol Urge Questionnaire in the first session decreased to 11.57 (SD = 6.88) in the final session.