• Title/Summary/Keyword: Visual effects

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Cognitive Effects on Lighting Environment for Improvement of Spatial Satisfaction and Psychological Comfort (공간 만족도 및 심리적 편안감 향상을 위한 실내 조명환경에 대한 인지효과)

  • Rim, Min-Yeop;Lee, Ji-Hyun;Kim, Soo-Young
    • Korean Journal of Air-Conditioning and Refrigeration Engineering
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    • v.24 no.6
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    • pp.497-508
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    • 2012
  • Occupants' visual perception, psychological responses and spatial satisfaction under various indoor lighting environments were analyzed in this study. Field measurements and surveys were conducted in four coffeeshop space where different lighting conditions were used. Results imply that worse visual comfort was reported under direct lighting conditions that exposed light sources to occupants. To improve spatial satisfaction in space, lighting environments should lessen visual thresholds and distraction. Also, necessary illuminance levels should be kept with appropriate color of light that occupants prefer. Worse spatial satisfaction was reported under direct lighting environments, and spatial satisfaction was strongly relevant to visual comfort. Psychological comfort for space was positive in space where visual thresholds were minimized and visual comfort was positively evaluated. Psychological and spatial satisfaction was relevant each other. Occupants preferred to stay longer in space where psychological and spatial satisfaction was positively achieved due to less visual thresholds and improved visual comfort. Better psychological and spatial satisfaction was achieved in space where temporary mood and visual perception were favorably evaluated under indirect lighting environments.

Objective quantification of the impact of blepharoplasty on the superior visual field

  • Kim, Hyodong;Lee, Sanghun;Son, Daegu;Yeo, Hyeonjung
    • Archives of Plastic Surgery
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    • v.49 no.1
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    • pp.19-24
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    • 2022
  • Background Blepharoplasty has both aesthetic and functional benefits in patients with pseudoptosis; however, previous studies could not demonstrate its beneficial effects quantitatively and objectively. The authors objectively analyzed the visual field before and after surgery and investigated whether measurements of the visual field can be applied as a suitable predictor of surgical outcomes. Methods In total, 18 eyelids in nine patients with pseudoptosis who had undergone simple skin excision blepharoplasty were evaluated prospectively from February to May 2016. The visual fields were analyzed preoperatively and 3 months postoperatively using the Goldmann kinetic perimetry test. The visual field test area was assessed using Adobe Photoshop. Results Blepharoplasty had an average 4.99-fold beneficial effect on the superior visual field. In particular, more improvement was seen in the superior temporal quadrant than in the nasal quadrant. No correlation was found between the preoperative margin-to-reflex distance 1 (MRD1) and the surgical outcome (P=0.119). However, there was a strong correlation between the preoperative superior visual field and the surgical outcome (P=0.001). Conclusions Using the Goldmann kinetic perimetry test, we objectively and quantitatively proved the beneficial effect of blepharoplasty on patients with pseudoptosis. Furthermore, we demonstrated that the preoperative visual field is a better preoperative surgical outcome predictive factor than the preoperative MRD1.

A Study on the Shopping Life through Mobile Visual Search

  • Tungyun Liu;Sijun Sung;Heeju Chae
    • Asia-Pacific Journal of Business
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    • v.15 no.1
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    • pp.45-69
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    • 2024
  • Purpose - To examine the influence of mobile visual search as a strategic technology service on consumer perceived economic value and customer commitments, which in turn affect consumer's usage intention of mobile visual search. This study also explores the moderating effect of different levels of consumer online shopping orientation. Design/methodology/approach - One-by-one open-ended in-depth interview was first undertaken to 15 Korean consumers to figure the features of mobile visual search. Then a conceptual model was built to verify the hypotheses that indicate the impact of mobile visual search on consumer perceived economic value and customer commitment, which further influence consumer's usage intention. Findings - The results show Convenience, Information quality, Personalization, Text-free search interface design and Visual communication of mobile visual search positively influence consumer perceived economic value and customer commitment and in turn positively affect consumer's usage intention. Moreover, the different levels of consumer online shopping orientation also found to have different effects on consumers' perception and behavior of using mobile visual search in online fashion shopping. Research implications or Originality - The present study verified that mobile visual search is a service tool that consumers want to use in the online fashion shopping journey since it provides economic benefits.

The Effects of Postural Control based on Bobath Approach for Body Schema and Visual Perception of Middle Cerebral Artery Infarcts : Case Report (보봐스 개념에 기초한 중대뇌동맥 경색 환자의 자세조절이 신체도식과 시지각에 미치는 영향 : 단일사례연구)

  • Lee, Dae-Hee;Ro, Hyo-Lyun
    • Journal of the Korean Society of Physical Medicine
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    • v.4 no.3
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    • pp.193-200
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    • 2009
  • Purpose:In this study is to verify the effects postural control training based on Bobath approach for body schema and visual perception on Middle Cerebral Artery(MCA) Infarcts. Methods:The subject was a 46 years old man with MCA infaction, lives in B city. An AB design for a single-subject research was used for this study. The procedures consisted of 1 time of baseline phase(A), 20 times of treatment phase(B). We applied the Bobath approach at the subject. Treatments included to facilitate trunk alignment and stability, and to train weight bearing and shifting, to facilitate pelvis movement, and to train walk especially stance phase and assist up-down stairs locomotion in environment similar to actual daily life. Results:With this treatment, the majority of body schema and visual perception and postural control was improved in treatment phase compared with in baseline phase. Therefore, this study supported the effectiveness of postural control training based on Bobath approach for body sechma and visual perception of hemiplegia. Conculusion:This study is integrated postural control training with Bobath approach that are widespread for hemiplegia and measured outcomes based on individualized therapy goals. Consequently the study is suggested the meaning of quality effectiveness of Bobath approach.

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Visual Evaluation according to Changes in Volume and Position of Peplums (페플럼의 위치와 양에 따른 시각적 평가)

  • Koo, Mi-Ran;Lee, Jung-Jin
    • Journal of the Korea Fashion and Costume Design Association
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    • v.17 no.3
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    • pp.61-71
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    • 2015
  • In this study, visual evaluation was performed with changes in peplums design to provide data which can enhance wearing image effects at the production of peplums one-piece. According to changes in volume and position of peplums, a total of 9 stimulants were chosen. Then, they were evaluated using a seven-point rating scale against 50 fashion students. The data has been analyzed by Factor Analysis, ANOVA, $Scheff{\acute{e}}$'s Test and the MCA method. The results of the study are as follows : 1. According to factor analysis, the components of visual evaluation depending on the changes in volume and position variations of peplums were divided into four factors: elegance, individuality, upper body correction and upper body emphasis. 2. According to visual evaluation depending on changes in the position variations of peplum, 'high waist' and 'natural waist' revealed a significant difference in elegance, individuality and upper body correction. 'Low waist' was observed in all four positions. 3. According to visual evaluation depending on the changes in volume of peplums, a significant difference at $45^{\circ}$ was observed in except for elegance. Significant differences at $90^{\circ}$ and $180^{\circ}$ were observed in all four positions. 4. In terms of interactions over in volume and position variations of peplums, interaction effects were found in two factors.

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The Effects of Visual Information on Anxiety and Uncertainty in Elderly Patients after the Total Knee Arthroplasty (시각적 정보제공이 슬관절 전치환술 노인 환자의 수술 후 불안과 불확실성에 미치는 효과)

  • Ryu, Kyung;Cho, Sook-Hee
    • Journal of muscle and joint health
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    • v.22 no.1
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    • pp.48-56
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    • 2015
  • Purpose: The purpose of this study was to verify the effects of visual information on nursing management to elderly total knee arthroplasty (TKA) patients. Methods: A quasi-experimental study with a non-equivalent control group pretest-posttest design was used in this study. Participants of this study were 60 elderly patients with TKA admitted to one hospital: the control group (30) between July and September, 2013, and the experimental group (30) between April and July, 2013. Anxiety and uncertainty were determined at baseline and at 3 days after TKA in both groups. Results: Two days after the visual information, the experimental group showed a significant decrease in anxiety and uncertainty compared with the control group. Conclusion: The results of this study show that providing visual information was effective in decreasing postoperative patient anxiety and uncertainty in elderly TKA patients. Therefore, when an elderly patient is hospitalized for TKA, positive and systematic provision of visual information may provide a positive effect by reducing postoperative patient anxiety and uncertainty.

Effects of Proprioceptive Control on the Balance in Patients With Chronic Hemiplegia (고유수용성 조절이 만성 편마비 환자의 균형에 미치는 영향)

  • Hwang, Byong-Yong
    • Physical Therapy Korea
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    • v.11 no.1
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    • pp.69-74
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    • 2004
  • Hemiplegic patients usually present with difficulty maintaining balance. Balance retraining is the major component of rehabilitation program for patients with neurological impairment. The purpose of this study was to investigate the effects of prorpioceptive exercise program on the improvement of balance in the patients with chronic hemiplegia. Thirty subjects (mean age $57.0{\pm}9.8$) were recruited and the subjects were divided into a proprioceptive group and a visual group. The subjects for the proprioceptive group were participated in the proprioceptive exercise program for 4 weeks, and the visual group were treated visual feedback training using Balance Master. At 4 week follow-up test, Berg Balance Scale significantly improved 1.1 points (p<.01), Timed Up & Go test improved 4.2 second (p<.01), and weight distribution during sit to stand also improved 5.0% (p<.01). As a result of this study, the proprioceptive control approach improved dynamic balance in the patients with chronic hemiplegia. It is suggested that there was no benefit of visual feedback training like as Balance Master when administrated in combination with other physical therapy interventions, compared with physical therapy alone using proprioceptive control approach to hemiplegia.

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The Effects of Crafts Programmes on Visual Perceptual Development of the Children with Developmental Disabilities (수예공작 프로그램 적용이 발달장애 아동의 시지각 발달에 미치는 영향)

  • Kim, Nam-Soon;Kim, Dong-Hyun;Kim, Hee-Jung
    • The Korean Journal of Health Service Management
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    • v.6 no.2
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    • pp.141-150
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    • 2012
  • The purpose of this study to know the effects of craft programmes on the visual perceptual development of the children with developmental disabilities. Sixty children were diagnosed with developmental disabilities. They divided into two groups that were the experimental group and control group. The children were subjected at K-Rehabilitation Center and C-child Care Center in Gyeong-Ju for 6 weeks from Feb to Apr (twice a seek, total 12 times) in 2011. The development programmes for the children disabilities are based on occupational therapy, physical therapy, and speech therapy. The intervention of experimental group included occupational therapy based on the craft programmes, physical therapy, and speech therapy. The one of control group included occupational therapy based on function, physical therapy, and speech therapy. The MVPT-3 and K-DTVP-2 were done before and after the therapy to compare visual perceptual development ability and to know the results of the test. Results were as follow: First, there were significant differences of MVPT-3 score before and after the therapy. Second, there were significant differences of K-DTVP-2 score before and after the therapy. The results mean the craft programmes had a positive effect on the visual perceptual development of the children with developmental disabilities.

Effects of Visual Feedback-Based Balance Training on Balance in Elderly Fallers (시각되먹임 균형훈련이 낙상을 경험한 노인의 균형에 미치는 효과)

  • Lee, Sun-Woo;Lee, Kyoung-Jin;Song, Chang-Ho
    • Journal of muscle and joint health
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    • v.18 no.1
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    • pp.16-27
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    • 2011
  • Purpose: The purpose of this study was to investigate the effects of a visual feedbackbased balance training, using force platform biofeedback, on the postural balance of elderly faller. Methods: Fifty one community-dwelling older adults (aged 66-88 years) with a recent history of fall participated in the study. Participants were randomized to an experimental group (EG, n=25) and to a control group (CG, n=26). The EG participated in training sessions three times/week for 6 weeks. Visual feedbackbased balance training with the a computerized force platform with visual feedback screen was used in the experimental group. Static balance (center of gravity) and dynamic balance (Functional reach test, Timed "Up & Go" test, Berg balance scale) were assessed before and after end of training. Results: A significant improvement in static balance and dynamic balance were demonstrated within the EG (p<.05), but not in the CG. Conclusion: Visual feedback-based balance training may be an effective intervention to improve postural balance of elderly fallers.

Effects of Visual Feedback Closed Kinetic Chain Exercise on the Lower Limb Muscles Activity and ankle Instability in Adult men with Chronic Ankle Instability (시각적 피드백을 이용한 닫힌 사슬 운동이 만성 발목 불안정성 성인남성의 하지 근활성도 및 발목 불안정성 지수에 미치는 영향)

  • Nam, Seung-Min;Lee, Do-Youn
    • Journal of the Korean Society of Physical Medicine
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    • v.14 no.1
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    • pp.131-138
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    • 2019
  • PURPOSE: This study examined the effects on muscle activation and ankle instability following sudden ankle inversion of the closed kinetic chain exercise using visual feedback to evaluate chronic ankle instability in adult males. METHODS: In this study, 28 subjects with chronic ankle instability were recruited and randomly divided into a closed kinetic chain exercise using a visual feedback group(n=13) and an open kinetic chain exercise group(n=15). Each group underwent 30 minutes of exercise three times a week for 8 weeks. The electromyographic(EMG) values of the rectus femoris, biceps femoris, tibialis anterior, peroneus longus, peroneus brevis, and lateral gastrocnemius muscles were measured to analyze muscle activity. The Cumberland ankle instability tool(CAIT) was used to measure ankle instability. RESULTS: Both groups showed improvements in tibialis anterior, peroneus longus and CAIT score(p<.05). In the experimental group, there were significant improvements in the rectus femoris, biceps femoris, and lateral gastrocnemius muscle activation(p<.05). CONCLUSION: The results suggest that closed kinetic chain exercise using visual feedback can be a useful treatment method for patients with chronic ankle instability.