• 한국전문물리치료학회지
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• 제19권3호
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• pp.40-50
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• 2012

The purpose of this study was to investigate the effect of visual feedback on the postural control of stroke patients, by systematically varying conditions of visual feedback [eye-open condition (EO) vs. eye-closed condition (EC)], and base-support (both-side support, affected-side support, and unaffected-side support). In this study, we allocated 41 stroke patients with no damage in the cerebellum and visual cortex who can walk at least 10 meters independently, and 35 normal adults who have no experience of stroke to the control group. Both groups were asked to perform a "sit-to-stand" task three to five times, and their postural control ability was measured and compared in terms of asymmetric dependence (AD) instead of the traditional symmetric index (SI) in the literature. The results showed that although both subject groups maintained better postural control in the EO condition than in the EC condition, the patient group appeared to be more stable in EC than in EO when they were required to perform the task of the support condition given on the affected side. These results implied that visual feedback can impair stroke patients' postural control when it is combined with a specific support condition.

• 미술이론과 현장
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• 제1호
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• pp.93-108
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• 2003

The aim of this thesis is to evaluate visual arts policy during Kookmin government period(1998-2002). In the beginning, many artists had expected president Kim Dae Jung to enlarge arts support But the evaluation of them was very negative because the government was only interested in the development of cultural industry. First, I analysed the government expenditure in the visual arts. Department of Culture and Tourism took the responsibility of visual arts policy. The budget of arts and culture increased to 1 % of total government expenditure in this period. But the main factor was the increasement of cultural industry and tourism expenditure. The budget of visual arts in 2002 was only 6,600million won. Second, I analysed visual arts support programs. (1) The government introduced studio programs for the first time. For 5 years, 2 national studios and 23 public studios were established. (2) The number of art museum was increased to 62. (3) It introduced alternative space support program and supported 200million won annually. (4) Percent for art scheme reduced from 1% to 0.7% of total construction cost, but still 27 public sculpture gardens were built. (5) Business support for visual arts reduced because of IMF. (6) Also arts market froze and many commercial galleries were closed. (7) In order to revitalize region through arts and to promote international exchange of culture, Gwangju Biennale was created. Third, I analysed Arts Plan 2002. It had a radical limitation because it was established in the last year of Kookmin government period. Also it showed special favors to some arts organizations. In general, I think that positive outcomes are the introductions of the studio program and the alternative space support program. Especially alternative space support program enforced the diversity of visual arts, and encouraged creative young artists. But policy of arts market failed because of IMF and visual artists had to go through rough times.

• 한국CDE학회논문집
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• 제13권6호
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• pp.429-439
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• 2008

With a remote operated manipulator system, the situation at a remote site can be rendered through remote visualized image to the operator. Then the operator can quickly realize situations and control the slave manipulator by operating a master input device based on the information of the virtual image. In this study, the remote operator visual support system (ROVSS) was developed for viewing support of a remote operator to perform the remote task effectively. A visual support model based on virtual environment was also inserted and used to fulfill the need of this study. The framework for the system was created by Windows API based on PC and the library of 3D graphic simulation tool such as ENVISION. To realize this system, an operation test environment for a limited operating site was constructed by using experimental robot operation. A 3D virtual environment was designed to provide accurate information about the rotation of robot manipulator, the location and distance of operation tool through the real time synchronization. In order to show the efficiency of the visual support, we conducted the experiments by four methods such as the direct view, the camera view, the virtual view and camera view plus virtual view. The experimental results show that the method of camera view plus virtual view has about 30% more efficiency than the method of camera view.

• 한국산학기술학회논문지
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• 제13권1호
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• pp.247-253
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• 2012

본 연구는 시각흐름 속도에 따른 가상현실 프로그램이 뇌졸중 환자의 보행에 미치는 영향을 알아보고자 시행하였다. 연구 대상자는 서울시 소재 M재활전문병원에 입원 중인 뇌졸중 환자 중 무작위로 31명을 선정하였고 대상자는 가상현실 프로그램에 몰입하여 보행분석기 위에서 보행을 실시하였으며 가상현실 프로그램의 4가지 조건은 정상 보행과 0.25배, 1배, 2배의 시각흐름 속도변환 가상현실 프로그램으로 구성되었다. 중재동안 보행분석은 GaitRite보행분석시스템을 이용하여 보행 속도, 분속수, 활보장, 보장, 단하지지지 시간, 양하지지지 시간을 측정하였다. 그 결과 0.25배의 느린 시각흐름 가상현실 프로그램에서 연구 대상자는 보행속도, 분속수, 환측 활보장, 건측 활보장, 환측 보장, 건측 활보장이 통계적으로 유의하게 감소하였고(p<.05), 환측 단하지지지시간, 건측 단하지지지시간, 환측 양하 지지지시간, 건측 양하지지지시간이 통계적으로 유의하게 증가하였다(p<.05). 또한 2배의 빠른 시각흐름 가상현실 프로그램에서 연구 대상자는 보행속도, 분속수, 환측 활보장, 건측 활보장, 환측 보장, 건측 활보장, 환측 단하지지지시간이 유의하게 증가하였고(p<.05), 건측 단하지지지시간, 환측 양하지지지시간, 건측 양하지지지시간이 유의하게 감소하였다(p<.05). 따라서 가상현실 보행 프로그램의 적용 속도에 따라서 뇌졸중 환자의 보행 능력이 유의하게 차이를 나타낸다는 것을 알았다. 그러므로 뇌졸중 환자의 운동 프로그램을 계획할 때 보행 훈련 프로그램을 증가시킬 수 있는 다양한 훈련 프로그램이 요구된다.

• Physical Therapy Rehabilitation Science
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• 제6권3호
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• pp.140-145
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• 2017

Objective: The purpose of this study was to investigate the effect of visual block with ankle joint fatigue on gait and dynamic balance ability. Design: Cross-sectional study. Methods: Thirty healthy young adults (men=15, women=15) between 22 to 25 years of age voluntarily participated in this study. All subjects performed the gait and dynamic balance test successively in two conditions: the visual block and the open eyes condition. Before the gait and dynamic balance test, muscle fatigue on the ankle joint was induced to all subjects by doing ankle dorsiflexion and plantarflexion alternately, and then gait parameters (step length, stride length, cadence, velocity, single limb support, and double limb support) were assessed by walking on the GAITRite system (CIR Systems Inc., USA). Subjects also performed the functional reach test (FRT) for assessment of dynamic balance. This study examined gait parameters and FRT scores in each visual block and open eyes condition. Results: The results showed that FRT scores with the visual block condition significantly decreased compared to without visual blocking (p<0.01). Step length, stride length, cadence, and velocity of gait parameters decreased significantly in the visual block condition (p<0.01) while there was no significant difference for single limb support. However, double limb support increased significantly in the visual block system (p<0.01). Conclusions: Therefore, blocking of visual information with muscle fatigue of the ankle joint can affect gait and balance ability of young adults and increase the risk of falls.

• 대한의용생체공학회:의공학회지
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• 제28권5호
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• pp.647-656
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• 2007

The purpose of this study was to analyze the effects of vibratory stimulus as somatosensory inputs on the postural control in human standing. To study these effects, the center of pressure(COP) was observed while subjects were standing on a stable and an unstable support with co-stimulated mechanical vibrations to flexor ankle muscles(tibialis anterior tendon, achilles tendon) and two plantar zones on both foot. The COP sway measurement was repeated twice in four conditions: (1) with visual cue and vibration, (2) without visual cue and vibration, (3) with visual cue and without vibration, (4) without visual cue and with vibration. The calculated parameters were the COP sway area and the distance, the median frequency and the spectral energy of COP sway in three intervals $0.1{\sim}0.3,\;0.3{\sim}1,\;1{\sim}3Hz$. The results showed that vibratory stimulus affect postural stability. The reduction rate of the COP sway with vibratory stimulus were higher on the unstable support because the effect of postural stability increases when afferent nervous flow is more activated by vibration on unstable support. If unclear visual or vibratory information is received, one type of information is compared with the other type of sensory information. Then the input balance between visual and vibratory information is corrected to maintain postural stability. These findings are important for the rehabilitation system of postural balance control and the use of vibratory information.

• 예술경영연구
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• 제52호
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• pp.39-73
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• 2019

본 연구는 시각예술창작산실 공간·전시지원 사업 추진상의 쟁점과 대안 모색을 하고 이를 통해 문화예술 지원사업의 방향성을 제시하고자 하는 것이다. 본 연구를 위해 문헌고찰 후, 지원사업 관련 직접 수혜자 집단과 지원사업 담당자, 그리고 시각예술 전문가 집단의 FGI 및 심층인터뷰를 하였다. 연구 결과, 지원사업의 특수성을 고려하여 지원심의와 선정이 실제 지원시기보다 충분히 여유를 두고 실행되어야 하며, 비영리전시공간과 사립미술관의 사회적 역할과 차별성에 대한 이해를 바탕으로 한 두 사업으로 구분하여 진행할 필요가 있다는 점을 공유하였다. 지원 방법과 평가에 관해서는 지원사업의 효과성을 고려한 장기지원이 요구되며, 지원 주체와 수혜자 사이의 신뢰성을 회복하는 건강한 파트너십 형성의 필요성, 그리고 평가기준과 e나라도움 시스템이 보다 효율적이고 합리적 구축되어야 하며, 해당 지원사업의 정체성에 부합하는 예산의 효율적 배분 및 항목의 유연성, 그리고 예산부족에 대한 쟁점이 도출되었다. 이러한 분석을 통해 시각예술지원사업의 특수성 이해, 지속가능한 시각예술창작 산실 정책의 수립, 예산활용이 자율성 부여 및 예산확충 등의 시사점을 도출하였고, 더 나아가 문화예술지원사업은 통제보다 효율성을 중시하는 방향성, 공급자 보다 수요자 입장을 고려한 방향성, 단기적 관점이 아닌 장기적 관점의 사업기획을 해야 한다는 방향성이 도출될 수 있었다.

• Educational Technology International
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• 제18권2호
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• pp.215-247
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• 2017

This study aims to conduct a literature review on visual scaffolding. Visual scaffolding, as a support for learning, employs various forms of visual objects which can be either content-independent or content-dependent and the types of which would be abstract-verbal, concrete-verbal, concrete-visual, or abstract visual. The effectiveness of visual scaffolding can be argued in the following three aspects: 1) explicit representation of information and emphasis of critical features in effective and efficient manner, 2) supplement of additional information, 3) structural understanding with decrease in cognitive load. The limitations of the study and the suggestions for future study are discussed.

• 한국비블리아학회지
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• 제26권4호
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• pp.5-30
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• 2015

장애인의 고등교육에 대한 관심이 높아지면서 해를 거듭할수록 장애대학생도 증가하고 있지만, 장애대학생의 성공적인 대학생활이 이루어지고 있는가는 별개의 문제로 보아야 한다. 이 연구는 국내 시각장애대학생의 정보접근권 보장과 정보복지 향상을 위해 체계적인 대체자료 지원체계를 마련하기 위한 목적으로 수행되었다. 이를 위해 국내 시각장애대학생을 위한 대체자료 제작 공급체계와 시각장애대학생들의 대체자료 이용 현황과 요구를 분석하였으며, 데이터 수집을 위해 대학 장애학생지원센터 담당자와 시각장애대학생을 대상으로 설문조사를 실시하였다. 국내 시각장애대학생을 위한 대체자료 지원체계 방안으로 1) 국립장애인도서관의 역할 강화, 2) 네트워크 구축을 통한 장애학생지원센터의 역량 강화, 3) 저작권 보호를 위한 기술적 제도적 개선 등을 제안하였다.

• International Journal of Contents
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• 제11권2호
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• pp.50-56
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• 2015

The area of discourse analysis has long neglected the value of images as a semiotic resource in communication. This paper suggests that like language, images are rich in meaning potential and are governed by visual grammar structures which can be utilized to decode the meanings of images. Employing a theoretical framework in visual communication, two digital images are examined for their representational and interactive dimensions and the dimensions' relation to the magazine advertisement genre. The results show that the framework identified narrative and conceptual processes, relations between participants and viewers, and symbolic attributes of the images, which all contribute to the sociological interpretations of the images. The identities and relationships between viewers and participants suggested in the images signify desirable qualities that may be associated to the product of the advertiser. The findings support the theory of visual grammar and highlight the potential of images to convey multi-layered meanings.