• 제목/요약/키워드: Visual sensory

검색결과 429건 처리시간 0.024초

경직형 양하지 뇌성마비아동의 시지각 능력과 일상생활동작과의 관련성 연구 (A Correlation between the Visual Perception Ability and Activities of Daily Living for Children with Spastic Diplegia)

  • 유병규;정금희
    • 대한감각통합치료학회지
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    • 제4권1호
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    • pp.47-55
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    • 2006
  • Objective : The purpose of this study was to evaluate the correlation between visual perception ability and activities of daily living(ADL) in the children with spastic diplegia who were treated at developmental disabilities children salutary institute. Method : The subject were consisted of 8 children with spastic diplegia(mean age, 10). The visual perception ability was measured by the Developmental Test of Visual Perception(DTVP) and by the Functional Independence Measure for Children(WeeFIM) to evaluate activities of daily living. Collected data analysis were completed by using correlation analysis. Results : Visual perception ability of children with spastic diplegia is the highest in Position in Space(PS) score, and is the lowest in Visual-Motor coordination(VM) score. Average visual perception performance of children with spastic diplegia is the highest in SR(Spatial relationship) score, and is the lowest in VM score. In activities of daily living, eating component were significantly correlated with Visual-Motor coordination. Conclusions : Therefore, accurate evaluation of visual perception ability and visual perception training for children with spastic diplegia will be important to improve patient's activities of daily living skill.

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감각신경계의 신경생리와 임상적 이용 (Neurophysiology of the Sensory System and Clinical Applications)

  • 서대원
    • Annals of Clinical Neurophysiology
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    • 제12권2호
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    • pp.35-46
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    • 2010
  • Various electrophysiological tests have provided a large body of valuable information on neuronal responses to a presented stimulus. The special and general somatic sensory pathways are main targets of evoked potentials. Two types of evoked potentials, exogenous and endogenous, are commonly used. Exogenous evoked potentials of general and special somatic sensory systems will be reviewed. One of general somatic sensory functional pathways, proprioception, can be evaluated by general somatosensory evoked potentials with electrical stimulation on nerves. The special somatosensory functional pathways, including vision, and audition, can be evaluated by visual evoked potentials and auditory evoked potentials. Also laser-evoked potentials are newly developed for pain pathway, including lateral spinothalamic pathway, and vestibular myogenic evoked potentials for sacculocollic pathways. The evoked potentials of sensory system have maximal clinical utility in evaluating functional deficits along the sensory pathways. They are used for evaluating comatose patients, hysterical patients, premature infants, patients with suspected demyelinating diseases or neoplasms, and research. We discuss the neurophysiologic tests of sensory systems in views of practical points. The organized evaluation of sensory electrophysiologic tests can be helpful in detecting and estimating the abnormalities in neurological diseases.

식물の색채관리に관する연구 (Studies on Color and Gloss as Evaluating Sensory Properties of Vegetables and Their Cooking)

  • 남출봉
    • 동아시아식생활학회지
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    • 제7권1호
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    • pp.12-135
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    • 1997
  • Color(and appearance)is one of the most important visual attributes in food. The favorite color of food is depend on the nation and its culture. Unfortunately the word on color ash superseded appearance as the description of the total visual perception of food. The optical properties are color, gloss, translucency, the uniformity of these attributes over the surface of the product, and the appearance boundary condition visual flavor. The major purpose of this lecture is to stress the importance of color and gloss on the basis of sensory evaluation for vegetables and these cooking process. These points are as follows: 1. Color and palatability Principle of cooking ; five tastes and five colors 2. Pigments and colorimeter Plant pigments ; Chlorophyll, Carotinoid, Anthocyan Optical properties and colorimeter Correlating instrumental and pigments data 3. Color, gloss of vegetables Effect of color and gloss on several cooking treatments 4. The importance of color of foods to the food industry and consumer

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Visual Perception in Autism Spectrum Disorder: A Review of Neuroimaging Studies

  • Chung, Seungwon;Son, Jung-Woo
    • Journal of the Korean Academy of Child and Adolescent Psychiatry
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    • 제31권3호
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    • pp.105-120
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    • 2020
  • Although autism spectrum disorder (ASD) is a neurodevelopmental disorder characterized by social impairments, patients with ASD frequently manifest atypical sensory behaviors. Recently, atypical sensory perception in ASD has received much attention, yet little is known about its cause or neurobiology. Herein, we review the findings from neuroimaging studies related to visual perception in ASD. Specifically, we examined the neural underpinnings of visual detection, motion perception, and face processing in ASD. Results from neuroimaging studies indicate that atypical visual perception in ASD may be influenced by attention or higher order cognitive mechanisms, and atypical face perception may be affected by disrupted social brain network. However, there is considerable evidence for atypical early visual processing in ASD. It is likely that visual perceptual abnormalities are independent of deficits of social functions or cognition. Importantly, atypical visual perception in ASD may enhance difficulties in dealing with complex and subtle social stimuli, or improve outstanding abilities in certain fields in individuals with Savant syndrome. Thus, future research is required to elucidate the characteristics and neurobiology of autistic visual perception to effectively apply these findings in the interventions of ASD.

Effect of Visual and Somatosensory Information Inputs on Postural Sway in Patients With Stroke Using Tri-Axial Accelerometer Measurement

  • Chung, Jae-yeop
    • 한국전문물리치료학회지
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    • 제23권1호
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    • pp.87-93
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    • 2016
  • Background: Posture balance control is the ability to maintain the body's center of gravity in the minimal postural sway state on a supportive surface. This ability is obtained through a complicated process of sensing the movements of the human body through sensory organs and then integrating the information into the central nervous system and reacting to the musculoskeletal system and the support action of the musculoskeletal system. Motor function, including coordination, motor, and vision, vestibular sense, and sensory function, including proprioception, should act in an integrated way. However, more than half of stroke patients have motor, sensory, cognitive, and emotional disorders for a long time. Motor and sensory disorders cause the greatest difficulty in postural control among stroke patients. Objects: The purpose of this study is to determine the effect of visual and somatosensory information on postural sway in stroke patients and carrying out a kinematic analysis using a tri-axial accelerometer and a quantitative assessment. Methods: Thirty-four subjects posed four stance condition was accepted various sensory information for counterbalance. This experiment referred to the computerized dynamic posturography assessments and was redesigned four condition blocking visual and somatosensory information. To measure the postural sway of the subjects' trunk, a wireless tri-axial accelerometer was used by signal vector magnitude value. Ony-way measure analysis of variance was performed among four condition. Results: There were significant differences when somatosensory information input blocked (p<.05). Conclusion: The sensory significantly affecting the balance ability of stroke patients is somatosensory, and the amount of actual movement of the trunk could be objectively compared and analyzed through quantitative figures using a tri-axial accelerometer for balance ability.

포장의 시각적 요소가 소비자의 미각 이미지 판단에 미치는 영향 연구 - 캔 맥주 포장의 색채와 패턴을 중심으로 - (Research on the Influence of Packaging Visual Elements on the Consumers' Taste Image Judgment - Take the colors and patterns of canned beer as an Example -)

  • 유원;오용균
    • 한국멀티미디어학회논문지
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    • 제24권10호
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    • pp.1449-1460
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    • 2021
  • The visual design elements of packaging play an vital role in attracting consumers' attention, forming their sense of pleasure and sensory expectations, as well as having an important impact on the actual product experience. This study aims to explore whether the colors and textures in the packaging design elements of canned beer will affect consumers' senses, judgments and taste perception of canned beer. Participants in Survey I (N=193) evaluated their expectations for beer freshness, softness, bitterness and alcohol content by observing the packaging of canned beer, then recorded whether they could get the expected experience when tasting beer, and evaluated their preference and purchase intention. In the Survey II, 4 kind of colors and 2 types of texture shapes were applied, and all participants were provided with the same beer for multivariate cross contract analysis to evaluate the specific impact of color and texture of packaging design elements on consumers' taste and the interaction between sensory judgment and taste perception.The results showed that both colors and textures had a significant affect on the sensory expectation (pre-tasting score) of canned beer, but their effects on the sensory score after tasting (actual perception)were inobvious. The analysis of the influence of the interaction between color, texture and shape on taste perception shows that when the expected packaging appearance perception is similar to the actual drinking perception (i.e., straight line and B/G or arc line and Y/R), it is more likely to obtain consumers' favor and higher purchase intention evaluation than the inconsistent canned beer packaging (i.e., straight line and Y/R and arc line and B/G). This paper discusses the influence of these results on the packaging design of canned beer and the possibility of improving the brand efficiency by meeting the visual elements of packaging design expected by consumers.

시운동기술에 관한 아동 작업치료의 체계적 고찰 (Occupational Therapy Strategies for Visual Motor Skills of Children: A Systematic Review)

  • 홍은경;김경미
    • 대한감각통합치료학회지
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    • 제8권1호
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    • pp.61-72
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    • 2010
  • 목적 : 체계적 고찰을 통해 시운동기술 평가를 위해 사용된 도구, 치료접근방법, 치료의 효과를 알아보고, 아동의 시운동 기술에 가장 적합한 치료방법과 평가도구를 제시하고자 한다. 연구 방법 : 체계적 고찰을 사용하였다. 2001년 1월부터 2010년 6월까지 학회지에 게재된 논문을 PubMed을 통하여 검색하였다. 주요 검색용어는"visual motor and occupational therapy", "visuomotor and occupational therapy"," perception and motor and occupational therapy"이었고, 161개의 논문 중 총 13개 논문을 대상으로 분석하였다. 결과 : 1. 시운동기술 치료가 필요한 대상 진단군은 발달장애아동이 20.00%로 가장 많았고, 글씨쓰기에 문제가 있는 아동이 13.33%이었다. 결과 : 2. 시운동기술을 측정하기 위해 사용된 평가도구는 Developmental Test of Visual Perception(DTVP)을 사용한 논문이 33.33%로 가장 많았고, Developmental Test of Visual Motor Integration(VMI)을 사용한 논문이 26.67%이었다. 결과 : 3. 시운동기술과 관련하여 가장 많이 사용된 치료접근방법은 발달적 기술기반 프로그램으로 58.82%를 차지 하였고, 감각통합과 감각기반 치료는 23.53%를 보였다. 결과 : 4. 시운동기술과 관련하여 작업치료 효과가 유의하게 나타난 경우는 72.73%이었고, 유의하지 않는 경우가 9.09%이었다. 부모 직접적 또는 간접적 접근과 집중행동 치료에서 효과가 유의하게 나타났다. 결론 : 아동 작업치료에서 시운동기술을 평가하기 위해 사용된 도구는 DTVP와 VMI가 60%를 차지하였고, 70%이 상에서 치료에 대한 효과가 있는 것으로 나타났다. 아동의 작업수행과 관련된 영역에 대한 작업치료의 효과를 분석하는 연구가 지속되어야 할 것으로 보인다.

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모션 인식 활용 작업치료가 신경발달장애 아동의 신체적 자기효능감 및 시각-운동통합 능력, 놀이기술에 미치는 영향 (The Effect of Motion Recognition Occupational Therapy on the Physical Self-efficacy, and Visual-motor Integration, Interactive Peer Play of Children with Neurodevelopmental Disorders)

  • 김고운;오혜원
    • 대한통합의학회지
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    • 제10권1호
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    • pp.119-128
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    • 2022
  • Purpose : The purpose of this study was to examine the effects of applying occupational therapy that uses motion recognition on the physical self-efficacy, visual-motor integration ability, and play skills of children who have neurodevelopmental disorder before and after treatment. Methods : This The study chose 16 children with neurodevelopmental disorder as research subjects who were randomly and evenly allocated into an experimental group and a control group. The experiment followed a pretest-posttest design. As an intervention, the experimental group received motion recognition-based occupational therapy and a separate sensory integration program. The control group only participated in the separate sensory integration program. The eight-week experiment duration included 24 intervention sessions where the a 50-minute session was implemented three times a week for eight weeks. To compare the physical self-efficacy, visual-motor integration ability, and play skills before and after the intervention, measurement tools including the Physical self efficacy, Beery VMI-6, and Penn interactive peer play scale were used. All measured variables were analyzed and expressed as mean, standard deviation and percentage. Results : The motion recognition-based occupational therapy demonstrated a significant effect on improving the physical self-efficacy, visual-motor integration ability, and play skills of the experimental group. The intervention also caused a significant difference between the experimental group and control group in terms of the physical self-efficacy, visual-motor integration ability, and play skills. Conclusion : We confirmed the possibility motion recognition-based occupational therapy could be effective in improving the physical self-efficacy, visual-motor integration ability, and play skills for patients who have neurodevelopmental disorder. Based on the study result, further future studies are expected based on this study result that prove the application effect of the motion recognition-based occupational therapy using disabled and non- disabled children as subjects are expected in the future.

표면 반사율에 의한 사과의 색상 선별 (Color Sorting of Apples by Surface Reflectance)

  • 배영환
    • Journal of Biosystems Engineering
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    • 제17권4호
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    • pp.382-395
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    • 1992
  • The surface color of several varieties of apples were expressed quantitatively in xyz chromaticity coordinates. The spectral reflectance of 'Fuji' apples were measured in 400-820 nm range by using a spectrophotometer. Based on the spectrophotometer data and the result of visual sensory test, linear regression models were developed to select wavelengths effective for sorting apples. The models utilized reflectance at single wavelength, and the difference and ratio of the reflectance at two distinct wavelengths. The model which best fitted the visual sensory test data was one utilizing the ratio of the reflectance at 618 nm and 514nm. The correlation coefficient for this model was 0.967. Several other models were also described.

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디스플레이 표집과 시각타성에 관한 연구 (A Study of Display Sampling and Visual Momentum)

  • 양리가
    • 디자인학연구
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    • 제20권3호
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    • pp.39-48
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    • 2007
  • 본 논문은 도시환경의 공공사인시스템의 효율극대화를 위하여 안구운동을 측정하는 공학 심리적 또는 인지 과학적 실험을 통하여 안구운동과 가로세로의 시각흐름 그리고 유전된 문화적. 선험적 도식 그리고 대뇌의 시각 시스템의 차별을 탐색하였다. 따라서 EMR 관측실험과 bitmap counting 방법을 대입함으로서 가장 효율적인 시각디자인 측정을 구할 수 있는 algorithm을 도출하였다. 본 논문에서는 과학적인 실험 Data가 인간의 $\ulcorner$Schema$\lrcorner$$\ulcorner$Sensory Qualia$\lrcorner$ 에 의해, 차별화와 시각표집(Visual Sampling)의 가변성(Momentum)이 상존함을 알게 되었다.

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