• Title/Summary/Keyword: Visual

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The Effect of Activities of Daily Living(ADL) Training on the Visual Perception Capacity Performance Function of the Stroke (일상생활활동 훈련이 뇌졸중 환자의 시지각 기능에 미치는 효과)

  • Kim, Jiwon;Kim, Miyoung;Hwang, Bosun;Jang, Chel
    • Journal of The Korean Society of Integrative Medicine
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    • v.2 no.1
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    • pp.1-14
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    • 2014
  • Purpose : The aim of this study was to investigate Activities of Daily Living(ADL) function recovery of repeated measurement of stroke who received ADL training. Method : Twenty stroke patients were treated by ADL program therapy from May to June. All of in twenty stroke patients, 10 stroke patients take part in Occupational Therapy and 10 stroke patients take part in ADL training for 30 min five times a week during four weeks in M- hospital occupational Therapy treatment room, local in Changwon and Geoje. We used two assessment on is Motor Free Visual Perception Test-Third Edition(MVPT-3) for visual perception the other is Modified Barthel Index(MBI) for ADL. Result : First, Visual Short Term Memory(VSTM) score was changed statistical significance OT intervention group than compare with ADL training group(p<.05). Second, Visaul Closure(VC) score was changed statistical significance OT intervention group than compare with ADL training group(p<.05). Third, Spatial Orientation(SO) score was changed statistical significance OT intervention group than compare with ADL training group(p<.05). The fourth Motor Free Visual Perception Test-Third Edition(MVPT-3) score was changed statistical significance OT intervention group than compare with ADL training group(p<.05). The fifth Modified Barthel Index(MBI total) score was changed statistical significance OT intervention group than compare with ADL training group(p<.05). Conclusion : Therefore, ADL training can be on method the visual perception of stroke patients.

Statistical Image Quality Measure (통계적 영상 품질 측정)

  • Bae, Kyoung-Yul
    • Journal of Intelligence and Information Systems
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    • v.13 no.4
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    • pp.79-90
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    • 2007
  • The image quality measure is an important issue in the image processing. Several methods which measure the image quality have been proposed and these are based on the mathematical point of view. However, there is difference between the mathematicalmeasure and the measure based on the human visual system and a new measure has to be proposed because the final target of the image is a human visual system In this paper, a statistical image quality measure which is considered the human visual feature was suggested. The human visual system is using the global quality of the image and the local quality of the image and the local quality is more important to human visual system. In this paper, the image divided into several segments and the image qualities were calculated respectively. After then, the statistical method using scoring was applied to the image qualities. The result of the image quality measure was similar to the result of measure based on the human visual system.

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Effect of Visual Feedback Training for Gradual Weight Shift in the Sit-to-stand Training on the Balance and Walking Abilities of Chronic Hemiplegia Patients (앉고 일어서기 동작에서 점진적 체중 이동을 이용한 시각적 되먹임 훈련이 만성 편마비 환자의 균형 및 보행능력에 미치는 영향)

  • Kim, Kyung-hwan;Park, Sung-hoon;Kim, Hyung-min;Pak, Noh-wook;Kim, Da-yeon
    • PNF and Movement
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    • v.15 no.1
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    • pp.77-84
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    • 2017
  • Purpose: This study aimed to investigate the effect of visual feedback training-for gradual weight shift in sit-to-stand training-on the balance and walking abilities of chronic hemiplegia patients. Methods: Twenty patients with chronic hemiplegia volunteered to participate in this study. The experimental group received visual feedback for gradual weight shift in the sit-to-stand training, while the contrast group followed the standard process for the sit-to-stand training. The evaluation of the balance and walking ability was conducted with the functional reach test (FRT), Berg balance scale (BBS), five time sit-to-stand (FTSTS) test, timed up and go (TUG) test, 10 m walk test (10MWT), balancia, activities-specific balance confidence (ABC) scale, and falls efficacy scale (FES). Results: In the results before and after intervention, there was a significant difference in TUG, 10MWT, ABC, and FES in the visual feedback training group (p < 0.05). In the control group, there was a significant difference in the 10MWT and ABC (p < 0.05). Also, in the evaluation of the postural fluctuations, the control group data showed a significant increase in Covar. The visual feedback group showed a significant difference in the W average. Conclusion: The visual feedback training group showed some improvement in terms balance and walking ability and on the ABC scale and FES. Therefore, if the diagonal progressive weight bearing exercise is combined with the various patterns and basic principles of PNF, it may be a more efficient intervention method.

A Study on the Influence Factors of Fashion Virtual Influencer's Visual Factors Leading to Follower's Behavioral Intention & Addiction (패션 버추얼 인플루언서의 시각적 요소가 팔로워 행동의도, 중독에 이르는 영향요인 연구)

  • Wang, Jin-Nan;Bae, Seung-Ju;Lee, Suk-Ho;Lee, Sang-Ho
    • Journal of the Korea Convergence Society
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    • v.12 no.12
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    • pp.213-222
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    • 2021
  • This study tried to identify the factors influencing the visual factors of fashion virtual influencers(FVI), on follower behavioral intention and addiction. As the number of fans of FVI is increasing these years, and the addiction phenomenon of social platforms is also increasing, researchers thought that a study to confirm the behavioral intention of fans and the path to addiction through the visual factors of FVI would be necessary. According to the research results, it was confirmed that among the visual factors of FVI, attractiveness affects authenticity through expertise. In addition, researchers confirmed that authenticity influences flow through relationship maintenance of behavioral intention, and authenticity influences addiction through flow. Thus, researchers verified the path leading to FVI's visual factors to behavioral intention and addiction, such as visual factors and authenticity, authenticity and behavioral intention, and behavioral intention and addiction. Researchers hope to conduct research with various content types of FVI, other social platforms.

Analysis on difference of consumer's evaluation on visual features of pork cuts

  • Lee, Yee Eun;Lee, Hyun Jung;Kim, Minsu;Yoon, Ji Won;Ryu, Minkyung;Jo, Cheorun
    • Journal of Animal Science and Technology
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    • v.63 no.3
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    • pp.614-625
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    • 2021
  • This study investigates how visual appearance of pork cuts affects consumer preference. Images of pork belly, Boston butt, and loin were chosen on the basis of visible fattiness and used to analyze consumers' perception of the appearance of each pork cut. Meat color and visible fat proportion of images of pork cuts were analyzed by the researchers before conducting the survey. A total of 211 pork eaters evaluated the pork cuts based on appearance (lightness of color, redness, visible fat proportion, and fat distribution), preferability, and overall acceptability. Also, muscle pieces from different pork cuts were taken and the relative area composition of muscle fibers was measured. Based on survey results, correlation between visual traits and preferences of each pork cut was analyzed. The survey results showed that preferred pork appearance varied as per each individual's favorite pork cut. Also, the respondents evaluated visual characteristics and preference for each pork cut differently possibly due to the different visual characteristics of each cut. Correlation analysis between visual traits and preference indicated that overall acceptability of pork cuts was mainly influenced by fat preference, followed by color preference. Fat and color preferences for each pork cut were affected by various visual attributes including redness, lightness of color, visible fat proportion, and fat distribution, but their effects were considerably varied among different pork cuts. Thus, Korean consumers perceived and assessed pork appearance using various quality cues but the evaluation depended on which cut was being observed.

A Case of Combined Korean Medicine Treatment for Homonymous Hemianopia and Prosopagnosia after Ischemic Stroke (동측 반맹과 안면실인증을 호소하는 뇌경색 환자 한방복합치료 1례)

  • Kim, Geun Young;Park, Hojung;Lee, Yu Jin;Cho, Ki-Ho;Moon, Sang-Kwan;Jung, Woo-Sang;Kwon, Seungwon;Jin, Chul
    • The Journal of the Society of Stroke on Korean Medicine
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    • v.22 no.1
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    • pp.21-30
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    • 2021
  • ■ Background Patients with posterior cerebral artery infarction could complain of visual field defects or prosopagnosia that does not recognize a person's face. However, there has been no standardized treatment for these symptoms. ■ Case report A 57-year-old male patient complained homonymous hemianopia and prosopagnosia after posterior cerebral artery infarction. After combined Korean medicine treatment for 49 days, subjective visual field was improved and the discomfort associated with visual field defect and the disability of recognizing people was decreased. Evaluations were took place by assessing visual field using Automated Perimetry and Confrontation visual field exam. Discomfort caused by visual field defects or prosopagnosia was evaluated by visual analog scale. The patient was treated with acupuncture, moxibustion, and herbal medications. ■ Conclusion The present case report suggests that combined Korean medicine treatment might be effective to resolution of homonymous hemianopia and prosopagnosia after stroke.

A Study on Visual Attention According to Color and Form -Focusing on Eye Tracking Experiment- (색상(Color)과 형태(Form)에 따른 시각적 주의에 관한 연구 -아이트래킹 실험을 중심으로-)

  • Hwang, Mi-Kyung;Kwon, Mahn-Woo;Park, Min-Hee
    • The Journal of the Korea Contents Association
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    • v.19 no.4
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    • pp.102-110
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    • 2019
  • Among the visual sensibility studies, many studies of color or movement have been done, but not much have been done about whether it can evoke sensibility in static form itself. Therefore, in this study, visual attention by AOIs(Area of Interests) combined with color based on three basic forms was analyzed using eye tracking, and the results were visually expressed through Heat Map and Gaze Plot. In addition, A Paired t-test was performed on the mean difference between the two groups to verify the statistical significance of each color and form. As a result of the experiment, the chromatic color form was more visual attention than the achromatic color form and warm color form was higher mean than cool color, so the visual attention was greater. In this study, it is meaningful to suggest a quantitative method which is easy to interpret objectively the design element that is easily interpreted subjectively. Based on the results of this study, if more further studies and quantitative analysis methods are presented that can identify differences in visual attention from various colors and forms, it can be used to provide guidelines for basic design.

Effects of Random Visual and Auditory Stimulation on Walking of Healthy Adults (무작위 시청각자극이 건강한 성인의 보행에 미치는 영향)

  • park, Jieun;Kim, Euna;Yang, Sungmin;Lee, Nahyun;Ha, Minhye;Cha, Yuri
    • Journal of Korean Physical Therapy Science
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    • v.26 no.1
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    • pp.35-44
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    • 2019
  • Purpose: The purpose of this study is to investigate the effect of visual and auditory stimulation randomly applied to healthy adults on walking. Design: Randomized Controlled Trial. Methods: Twenty-six healthy students in S college were randomly divided into visual feedback group (n=13) and auditory feedback group (n=13). The visual feedback group walked using four conditions. 1) In the red screen was shown, clap twice to the right, 2) In yellow screen, clap twice to the left, 3) In green screen, clap twice over head. 4) Do not clap in purple screen. The auditory feedback group walked using four conditions. 1)in red, clap twice to the right, 2) In yellow, clap twice left, 3) In green, clap twice over your head. 4) Do not clap in purple. All subjects measured gait variables before and after the test using G-walker. Result: The visual feedback group showed a significant decrease (p<.05) in the number of steps per minute, walking speed, and step length compared with that of normal walking. The auditory feedback group showed a significant decrease (p<.05) in the number of steps per minute, walking speed, and step length than that of normal walking. Conclusion: The results of this study suggest that visual and auditory stimulation applied to healthy adults may have significant effects on walking.

A Study on Acquisition Strategy of Records for Artists and Their Records Information Management (시각예술 작가 기록물 수집전략 및 기록정보 관리 연구)

  • Jung, Kong Ju;Park, Ju Seok
    • The Korean Journal of Archival Studies
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    • no.40
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    • pp.61-93
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    • 2014
  • One of the reasons behind the surfacing of such issues is because the record does not exist and even if the records remained, it is because they are not being properly managed. In Korea, National institutions in the field of visual arts, currently there are no archives that manage only the records for the visual arts as an independent institution, and the reality is that the National Museum of Archives is still in the beginning stage as well. This study has conducted a research on the records collection strategy and the management of the record information of an author who is the creator of the visual arts as a starting point of the visual arts. For this purpose, the definition of visual arts and the concept of an author covered in this study will be examined and the types of documentary that may occur in the field of visual arts were analyzed. In addition, the history of an author is its personal record thus a personal history and private archive have been examined. Based on this background, the cases on the personal record and the management of the record information of domestic and foreign authors were analyzed and the implications were derived.

Visual Hyper-vigilance But Insufficient Mental Representation in Children with Overweight/Obesity: Event-related Potential Study with Visual Go/NoGo Test

  • Gill, Inkyu;Moon, Jin-Hwa;Kim, Yong Joo;Kim, Ja Hye;Ahn, Dong Hyun;Koh, Min Sook
    • Pediatric Gastroenterology, Hepatology & Nutrition
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    • v.22 no.3
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    • pp.249-261
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    • 2019
  • Purpose: The neural processing of children with overweight/obesity (CWO), may affect their eating behavior. We investigated the visual information processing of CWO under response control condition, by event-related potential (ERP) study, an electrophysiologic study for cognitive mechanism. Methods: Seventeen CWO (mean age: $10.6{\pm}1.9$), and 17 age-matched non-obese children (NOC), participated in the study. Neurocognitive function tests and visual ERP under Go/NoGo conditions, were implemented. Area amplitudes of major ERP components (P1, N1, P2, N2, and P3) from four scalp locations (frontal, central, parietal, and occipital), were analyzed. Results: For Go and NoGo conditions, CWO had significantly greater occipital P1, frontocentral N1, and P2 amplitudes compared with NOC. P2 amplitude was significantly greater in CWO, than in NOC, at the frontal location. N2 amplitude was not significantly different, between CWO and NOC. For CWO and NOC, Go P3 amplitude was highest at the parietal location, and NoGo P3 amplitude was highest at the frontal location. In Go and NoGo conditions, P3 amplitude of CWO was significantly less than in NOC. Conclusion: The greater P1, N1, and P2 suggested hyper-vigilance to visual stimuli of CWO, but the smaller P3 suggested insufficient mental representation of them. Such altered visual processing, may affect the eating behavior of CWO.