• 제목/요약/키워드: Visual sensory

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A Framework for VR Effects with Multi-sensory Motional Display (운동감 및 다감각 가상현실 효과 시스템의 구조와 응용)

  • Yoo, Byoung-Hyun;Han, Soon-Hung
    • Journal of the Korea Society for Simulation
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    • v.14 no.3
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    • pp.55-66
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    • 2005
  • Virtual reality (VR) simulators have been extended to transfer knowledge and education, and demands for exhibition systems for science education and cultural experiences has also increased. Existing VR simulators, which are based on the dynamics equations of motion, cannot easily be adapted to changes in simulation contents. In order to effectively transfer knowledge and maintain interests through educational applications, an experiential system that has multi-sensory effects as well as motion effects is required. In this study, we designed and implemented a motion generation that is tailored to experiential exhibition systems and multi-sensory VR effects. Both the sense of motion which is generated from the movement of the viewpoint of the visual image, and motion effects which are constructed in advance, are applied to motion simulation. Motion effects which occur during interaction between the user and the exhibition system can be easily added. Various sensory cues that are appropriate to the exhibition system are also considered.

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The Foundational Study to Compare the Visual Perceptual Skill by MVPT-R in Korean and American Preschooler (MVPT-R을 이용한 한국과 미국 전학령기 아동의 시지각 능력 비교를 위한 기초 연구)

  • Park, Sung-Hyun;Park, So-Jung;Park, Soo-Hee;Jung, Hye-Rim;Chang, Moon-Young
    • The Journal of Korean Academy of Sensory Integration
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    • v.3 no.1
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    • pp.49-56
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    • 2005
  • Objective : The purpose of this study was to indicate the foundational data to standardize MVPT-R for Koreans. Method : This study was conducted on 221 children ranging in all preschool age from 4 to 6 years residing in Busan and Kyungsangnam-do. It was performed from January 12, 2004 to April 30, 2004. Result : First, similar to American children, as Korean children grow older, the mean raw score of MVPT-R increased. Second, Korean children's mean raw score was higher than that of American children; 3.51 in 4 age, 1.52 in 4.6 age, 2.93 in 5 age, 1.72 in 5.6 age, 1.84 in 6 age and 0.48 in 6.6 age. Third, the mean of PQ(106.57) in Korean children was higher than that of PQ in American children. Fourth, The raw score in Korean children was higher than the raw score in American children in most of the subjects(excluding visual closure subjects). Conclusion : The visual perception skill of Korean children is higher than that of American children. If we apply MVPT-R developed in U.S to Korean children, it will be difficult for Korean children to achieve the adequate results. Therefore, we must use the standardized MVPT-R for Korean that can minimize the differences between American and Korean children's visual perception skills.

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Analysis of Brain Activation due to Mouth Shape during Grip Movement (잡기동작 수행 시 입모양에 따른 뇌활성화 분석)

  • Shim, Je-Myung;Kim, Hwan-Hee;Kim, Chung-Sun
    • Journal of the Korean Society of Physical Medicine
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    • v.5 no.3
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    • pp.467-476
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    • 2010
  • Purpose : This study was performed to understand the relationship between hand and mouth shapes using functional magnetic resonance imaging(fMRI). Methods : Two healthy volunteers without any previous history of physical or neurological illness were recruited. fMRI was done that volunteers was 6 repeated of natural mouth, close mouth and open mouth while power grip and pinch grip movement. Results : Cerebral cortex activation was not well observed for the natural mouth during the power grip exercise. For the closed mouth, the temporal lobe, Broca's area, the prefrontal area related to thinking and judgment, the supplementary motor area, the auditory area and Wernicke's area were activated. For the open mouth, cortical activation was also observed in the temporal lobe, Wernicke's area, the prefrontal area related to thinking and the orbital frontal area related to visual sense. During the pinch grip exercise, cortical activation was observed for the natural mouth in the primary sensory area, Wernicke's area, the primary and supplementary motor area, and the prefrontal area. For the closed mouth, cortical activation was observed in the temporal lobe, Wernicke's area, the prefrontal area related to thinking, the secondary visual area, the primary sensory area and the supplementary motor area. In the case of the open mouth, cortical activation was observed in a few parts in the temporal lobe as well as Wernicke's area, the prefrontal area related to thinking, and other areas related to visual sense such as the primary visual area, the secondary visual area and the visual association area. Conclusion : Brain was more activation for close mouth and open mouth more than natural mouth movement.

Visual Tactility in Alexander McQueen's design (알렉산더 맥퀸 디자인에 나타난 시각적 촉각)

  • Kim, Jiye;Suh, Seunhee
    • Journal of the Korean Society of Costume
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    • v.65 no.8
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    • pp.77-94
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    • 2015
  • Much western philosophical thinking is constrained by ocularcentrism. Hence, multi-sensory experiences hold the most prominent position in contemporary art, and visual tactility, where feelings of touch through sight, become a powerful medium of expression in fashion. This study analyzes visual tactility in Alexander McQueen's design, where design elements are in focus. This investigation aims to bring the concept of visual tactility in fashion, and by doing so, enhance valuable aesthetic possibility. The result of the study is as follows: First, Creative silhouette is something that is constructed by his impeccable cutting and tailoring skills. In fabrics, he often suggests unconventional materials by uncompromising approach to fashion. Color contrasts refer to color sensibility, which reminds of grotesque image. McQueen's aggressive aesthetic awareness results in visual tactility in fashion.

Comparison of Social Quotient and Sensory Processing According to the Toileting Ability in Children with Autism Spectrum Disorder (자폐스펙트럼장애 아동에서 대소변 가림 여부에 따른 사회지수 및 감각처리기능 비교)

  • Lee, Chulsang;Kim, Taehoon
    • Journal of The Korean Society of Integrative Medicine
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    • v.8 no.3
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    • pp.133-142
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    • 2020
  • Purpose : The purpose of this study was to investigate the differences in social quotient and sensory processing function between completed-toileting and incomplete-toileting children with autism spectrum disorder (ASD). We aims to provide a basis for the training of children with autism spectrum disorders. Methods : The subjects of this research were children with ASD, aged from 4 to 7, receiving sensory integration therapy at the H-Child Development Research Center in Busan, South Korea. After recruiting 30 parents who had children with ASD, we interviewed them and we divided their children into completed-toileting group and incomplete-toileting group based on the past researches. We assessed them using the Social Maturity Scale and Sensory Profile. Spearman correlation was used to analyze between the sensory processing score and social quotient. Mann-Whitney U test was used to compare the Sensory Profile scores of the two groups. Results : The social quotient was correlated with the sensory processing score in the most of component as for auditory processing, vestibular processing, touch processing, multisensory processing, orosensory processing, except for visual processing. The groups of completed-toileting and incomplete-toileting group showed statistically significant intergroup difference in sensory seeking, emotional reactive, oral-sensory sensitivity, and inattention/distractibility in the sensory factor region. No statistically significant difference from intergroup was observed in any modulation areas, nor in behavioral & emotional response domains. Conclusion : A significant intergroup difference was observed in the most of sensory processing areas, except for modulation areas and behavioral & emotional response domains. The result revealed that toileting is significantly correlated with sensory processing. Therefore, this study suggests that the sensory processing function should be considered in the toilet training of children with ASD.

Characteristics of Visuo-Spatial Information Processing in Children with Autism Spectrum Disorder

  • Kwon, Mee-Kyoung;Chung, Hee-Jung;Song, Hyunjoo
    • Science of Emotion and Sensibility
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    • v.21 no.2
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    • pp.125-136
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    • 2018
  • Although atypical sensory processing is a core feature of autism spectrum disorder (ASD), there is considerable heterogeneity among ASD individuals in the modality and symptoms of atypical sensory processing. The present study examined visual processing of children with ASD, focusing on the complexity and orientation of visual information. Age- and -IQ-matched Korean children (14 ASD and 14 typically-developing (TD) children) received an orientation discrimination task involving static spatial gratings varied in complexity (simple versus complex) and orientation (horizontal versus vertical). The results revealed that ASD children had difficulty perceiving complex information regardless of orientation, whereas TD children had more difficulty with vertical gratings than horizontal gratings. Thus, group-level differences between ASD and TD children appeared greater when gratings were presented horizontally. Unlike ASD adult literature, however, ASD children did not show superior performance on simple gratings. Our findings on typical and atypical processing of ASD children have implications for both understanding the characteristics of ASD children and developing diagnostic tools for ASD.

Neural Network Approach to Sensor Fusion System for Improving the Recognition Performance of 3D Objects (3차원 물체의 인식 성능 향상을 위한 감각 융합 신경망 시스템)

  • Dong Sung Soo;Lee Chong Ho;Kim Ji Kyoung
    • The Transactions of the Korean Institute of Electrical Engineers D
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    • v.54 no.3
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    • pp.156-165
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    • 2005
  • Human being recognizes the physical world by integrating a great variety of sensory inputs, the information acquired by their own action, and their knowledge of the world using hierarchically parallel-distributed mechanism. In this paper, authors propose the sensor fusion system that can recognize multiple 3D objects from 2D projection images and tactile informations. The proposed system focuses on improving recognition performance of 3D objects. Unlike the conventional object recognition system that uses image sensor alone, the proposed method uses tactual sensors in addition to visual sensor. Neural network is used to fuse the two sensory signals. Tactual signals are obtained from the reaction force of the pressure sensors at the fingertips when unknown objects are grasped by four-fingered robot hand. The experiment evaluates the recognition rate and the number of learning iterations of various objects. The merits of the proposed systems are not only the high performance of the learning ability but also the reliability of the system with tactual information for recognizing various objects even though the visual sensory signals get defects. The experimental results show that the proposed system can improve recognition rate and reduce teeming time. These results verify the effectiveness of the proposed sensor fusion system as recognition scheme for 3D objects.

A Case Report of Tinnitus Occurred in the Sudden Sensory Neural Hearing Loss Treated with Korean Medical Treatments (돌발성 난청 환자에서 발생한 이명의 한방 치험 1예)

  • Park, Mu-Seob;Lee, Cho-In;Kim, Jae-Soo;Hwang-bo, Min;Lee, Hyun-Jong
    • Herbal Formula Science
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    • v.22 no.2
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    • pp.133-141
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    • 2014
  • Objectives : The purpose of this study is to show the clinical effect of Korean Medical Treatments for Tinnitus with Sudden Sensory Neural Hearing Loss. Methods : The patient was treated by Korean Medical Treatments for 10weeks. The effect of treatments on tinnitus was measured with Visual Analogue Scale(VAS) and Korean Tinnitus Handicap Inventory(K-THI). And the effect of treatments on sudden hearing loss was measured by VAS. Results : VAS of Tinnitus was decreased from 10 to 3 points and K-THI score was decreased from 70 to 26 points. VAS of hearing loss was decreased from 9 to 8 points. Conclusions : Korean Medical Treatments are effective on Tinnitus.

Emotional State of Companion Dogs by Sensory Stimuli (감각 자극에 따른 반려견의 정서 상태 연구)

  • Oh, Yeon-Seo;Park, Jin-Ho
    • The Journal of the Korea Contents Association
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    • v.20 no.10
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    • pp.199-215
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    • 2020
  • The purpose of this study is to understand dogs for their happy lives. Experiment and survey were conducted to find out the effects of sensory stimulation on dogs emotions. Sensory were divided into visual, auditory, olfactory, tactile, complex and emotions were measured by the rate of deep sleep, feed intake, and heart rate. Research has shown that complex stimulation (walking) is the most positive stimulation for dog's emotions, but visual stimulation and auditory stimulation do not act as stimuli that positively change usual state of dog's emotions. Olfactory stimuli is the second best stimulation. Since olfactory stimulation is effective in maintaining a calm state without large deviation in the dog's state, it can be used as a method for relieving the dog's stress in exceptional situations when complex stimulation is not possible. On the other hand, tactile stimulation, bath, is a negative sensory stimulus that causes hypersomnia and binge eating for most dogs.

A Literature Review on the effect of Visual and Auditory Feedback(Balance Training System/The Target) at Dynamic Balance training (동적 균형 훈련시 시.청각 피드백(Balance Training System/The Target)의 효과에 관한 고찰)

  • Lee, Jong-Sam;Yoo, Jae-Eung
    • Journal of Korean Physical Therapy Science
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    • v.11 no.2
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    • pp.38-45
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    • 2004
  • Appropriate physical position and balance means giving the least stress and the most useful biomechanically to the body. As this fails, one would have functional recovery problem regardless of disability. There reported better effective on Dynamic training rather than Static training for a proper recovery of physical position, and additionally required Sensory Feedback. Those who have disability of balance, especially Central Nervous System lesion should he provided with variety of Sensory Feedback, and also Dynamic Balance training used by is quite effective.

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