• Journal of the Korea Convergence Society
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• v.13 no.4
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• pp.147-154
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• 2022

This paper evaluated visual function and stereoacuity function after surgery for intermittent exotropia. Subjects of this study were 18 patients (male: n = 10, female: n = 8) mean aged 12.06±5.43 years diagnosed with intermittent exotropia who underwent strabismus surgery. Of these subjects, 72.2% of the subjects underwent strabismus surgery once and 27.8% had it twice. Visual function and stereoacuity function were tested for these subjects. For data analysis, frequency analysis, cross analysis, and correlation analysis were used, and statistical significance was set at p<.05. Regarding the deviation state after strabismus surgery, exodeviation accounted for the most(72.2%), followed by diplopia(50.0%) and suppression(33.3%) for distance sensory fusion. Regarding near sensory fusion, fusion(50.0%) accounted for the most, followed by diplopia(44.4%). After strabismus surgery, subjects with distance stereoacuity blindness were the most at 61.1% and there were no subjects with a normal range of 40-60 arcsec. Near stereoacuity blindness subjects accounted for 33.3% and subjects with 40-60 arcsec accounted for 1.1%. Even after surgery for intermittent exotropia, there were some areas that did not improve in deviation state, stereoacuity, or sensory fusion. Therefore, it is necessary to manage and control strabismus through non-surgical methods before and after surgery for intermittent exotropia.

• Proceedings of the ESK Conference
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• 1995.04a
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• pp.175-180
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• 1995

산업계를 중심으로 많은 직장에서 교대제 근무가 실시되고 있으나, 교대작업에 관한 작업시간의 단축이 요구되고 있는 실정이다. 교대제근무의 도입에 따라 직장내에서 취하는 수면과 이러한 수면후 아침 일찍 작업을 계속하는 경우도 일반화 되고 있다. 일반적으로, 수면시간은 적어도 7시간 정도 취하는 것이 이상적 이라고 일본 후생성 등에서 권장하고 있지만, 직장에 따라서는 심야 근무의 종료시간등의 문제때문에, 반드시 이러한 수면의 장려시간이 지켜지는 경우는 많지 않다. 따라서, 수면량의 부족 및 그에 따른 수면의 질적 저하가 다음날 작업시에 작업자의 심신반응에 좋지않은 영향을 미치게 될것이라는 것은 쉽게 예상할 수가 있다. 이러한 점을 배경으로, 본 연구는 신경감각작업의 대표적인 예의 하나인 열차운전에 종사하는 운전사을 대상으로 새벽에 하는 작업에 대해 전날밤에 취한 수면의 양.부가 작업시에 작업자의 자각적 피로감에 양향을 미친는 가를 사례적으로 연구하여 분석한 것이다.

• Proceedings of the Korean Society for Emotion and Sensibility Conference
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• 2000.11a
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• pp.145-147
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• 2000

본 연구는 각기 다른 종류의 원단으로 운동복을 만들어 선수들에게 입혀서 운동을 20분간 실시하게 하여 원단에 따라 쾌적감을 평가하였다. 실험방법은 피부온도를 4부위 측정하였고 가슴부위에서 의복 내 온도를 측정하였으며 매 5분마다 주관적인 쾌적감을 신고하도록 하였다. 연구의 목적은 다른 종류의 원단으로 제작한 운동복에 따른 쾌적감과 피부온도의 변화와 의복내 온도의 변화를 알아봄으로서 원단별로 쾌적감을 느끼는 피부온도와 의복 내 온도를 찾아내고 운동복의 디자인이나 설계에 적용하여 쾌적한 운동복을 개발하고자 한다. 그 결과 동일한 원단에서 운동시의 쾌적감은 부위별 피부온도가 높을 때 보다 낮을 때에 쾌적감을 느끼고 있다는 것을 알 수 있었다. 즉 운동 시에 발생하는 열을 의복이 열 평형을 이루기 위해 빨리 열을 밖으로 배출할 수 있는 의복의 디자인이 필요하다는 것을 알 수 있었다. 각기 다른 원단에서는 시간별 감각평가를 비교한 결과 PE/Wool의 원단이 쾌적하다는 평가를 하였다. 처음 의복을 입었을 때와 운동 중 그리고 운동 후에 피부온도나 의복 내 온도 변화가 적을 때에 쾌적하다는 평가를 하였다.

• Proceedings of the ESK Conference
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• 1996.04a
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• pp.153-159
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• 1996

신경감각적 작업의 대표적인 작업중의 하나인 트랙킹작업을 대상으로 작업전후에 취 하는 휴식방법이 작업시간과 작업자의 각성 레벨에 미치는 영향을 명백히 하기 위하여 피실험자로서 8명의 남자대학생을 선발하여 휴식시간에 bio-feedback법을 5분간 이용, 10분간 이용, 이용하지 않았을 경우의 3종류의 휴식방법을 취하게 한후 작업자의 심신 반응과 작업수행도를 측정하였다. 결과로서 뇌파, 심박수 및 CFF값의 변동에서는 휴식 방법에 따라 작업수행시에 유의한 차를 나타내었고 작업수행도에서도 심신반응 패턴과 상관관계를 보여 주었다. 이러한 결과로부터 본 연구의 대상으로 선정한 Tracking작업 과 같은 신경감각적 작업을 수행할 때의 휴식을 취하는 방법 그중에서도 특히 Bio- feedback법을 이용한 심신의 리럭스제이션에 의한 효과가 작업수행시의 각성 레벨의 저하 방지에 유효하게 작용하며 작업후의 회복효과를 한 층 더 높이는 작용을 한다는 것을 확인할 수 있었다.

• Journal of the Korean Society of Clothing and Textiles
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• v.27 no.5
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• pp.533-544
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• 2003

The purpose of this study was to provide practical information to design woolen fabrics in terms of structural and surface characteristics, which produce texture images of fabrics. The relationship among structural, surface characteristics and texture images, and preference and purchase intention were analyzed. To evaluate the texture images of the fabrics subjectively, 7 rank＇s semantic differential scale questionnaires were developed with thirty adjective pairs. Blind and non-blind test were performed with 320 female subjects who were in their 20-30＇s. Commercially available 48 woolen fabrics were used as specimens. Results showed that five factors were obtained: classic, elegance, warmth, natural and casual. These factors were closely related to fiber type, weave type, fabric counts, and finishes.

• Journal of the Institute of Electronics Engineers of Korea SC
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• v.42 no.6
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• pp.57-66
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• 2005

In this paper, a new rehabilitation training system was developed to improve equilibrium sense by combining virtual reality technology with a fixed exercise bicycle. The subjects consisted of two groups. A group of young people, was compared against a group of elderly. We measured three different running modes of virtual bicycle system with two successive sets. The parameters measured were running time, velocity, the weight movement, the degree of the deviation from the road, and the variables about the center of pressure. The repeated training, our results showed that the running capability of the elderly improve compared. In addition, it was found out that the ability of postural control and the equilibrium sense was improved with the presentation of the visual feedback information of the distribution of weight. From the results of this experiment, we showed that our newly developed system might be useful in the diagnosis of equilibrium sense or in the improvement of the sense of sight and, somatic, and vestibular sense of the elderly in the field of rehabilitation training.

• Investigative Magnetic Resonance Imaging
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• v.8 no.1
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• pp.9-16
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• 2004

Purpose : The purpose of this study was to assess supplementary motor area (SMA) activation during motor, sensory, word generation, listening comprehension, and working memory tasks using functional magnetic resonance imaging (fMRI). Materials and Methods : Sixteen healthy right-handed subjects (9M, 7F) were imaged on a Siemens 1.5T scanner. Whole brain functional maps were acquired using BOLD EPI sequences in the axial plane. Each paradigm consisted of five epochs of activation vs. the control condition. The activation tasks consisted of left finger complex movement, hot sensory stimulation of the left hand, word generation, listening comprehension, and working memory. The reference function was a boxcar waveform. Activation maps were thresholded at an uncorrected p=0.0001. The thresholded activation maps were placed into MNI space and the anatomic localization of activation within the SMA was compared across tasks. Results : SMA activation was observed in 16 volunteers for the motor task, 11 for the sensory task, 15 for the word generation task, 5 for the listening comprehension task, and 15 for the working memory task. The rostral aspects of the SMA showed activity during the word generation and working memory tasks, and the caudal aspects of the SMA showed activity during the motor and sensory tasks. Right (contralateral) SMA activation was observed during the motor and sensory tasks, and left SMA activation during the word generation and memory tasks. Conclusion : Our results suggest that SMA is involved in a variety of functional tasks including motor, sensory, word generation, and working memory. The results obtained also support the notion that functionally specific subregions exist within the region classically defined as the SMA.

• The Korean Publising Journal, Monthly
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• s.254
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• pp.14-14
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• 1999

우리들 세기에서 가장 순수하게 시 그 자체, 시정신 그 자체였던 시인이 생각한, 자연의 '스며드는 힘'을 나는 나대로 내 과핵의 이미지에 또 몸의 감각을 붙여보는 것 또한 두메살이며 그 책읽기의 보람이다.

• The Journal of Korean Academy of Sensory Integration
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• v.9 no.2
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• pp.41-49
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• 2011

Objective : This study aims to compare children with and without pervasive developmental disorders in terms of the sensory processing ability and behavioral characteristic of oral feeding. This study also aims to identify correlation between sensory processing and characteristics of eating. Methods : The subjects of this research were normal children and those who have diagnosis of a pervasive developmental disorder, aged from 4 to 6. The research instruments were composed of Short Sensory Profile (SSP), Brief Autism Mealtime Behavior Inventory (BAMBI) and Food Items of the Sensory Checklist. Data collection was done by a professional survey institute located in 10 cities including Busan, South Korea. The survey questionnaires were distributed to 455 parents of children with and without pervasive developmental disabilities through the survey institutes. Total 263 answers were collected out of 455 questionnaires (62%) and 154 answers were used in data analysis. Out of 154 answers, 45 were for children with pervasive developmental disabilities and 109 were for normal children. Data analysis was done to identify correlations between sensory processing and characteristics of eating such as eating behavior and oral feeding. Results : 1. There was a significant difference between children with and without pervasive developmental disorders in all area of sensory processing ability (p<.05). 2. There was no difference between children with and without pervasive developmental disorders in eating behavior (p=0.881) and oral feeding (p=0.324). 3. In the group of children with a pervasive developmental disorders, it is found that there is negative correlation between sensory processing, eating behavior and oral feeding (r=-0.384, p<.01). 4. A remarkable significant correlation was found between sensory processing and eating behavior especially in taste/smell sensitivity (r=-0.6, p<.01) and auditory filtering (r=-0.326, p<.05). The correlation between sensory processing and oral feeding was most significant in under responsiveness/seeking sensation (r=-0.372, p<.05) and auditory filtering (r=-0.382, p<.05). Conclusion : This study found that there are significant correlations between sensory processing ability and some characteristics of eating behaviors for children with pervasive developmental disorders. This information can be useful to develop a program to intervene eating behavior problems of children with pervasive developmental disorders.

• Journal of the korean academy of Pediatric Dentistry
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• v.23 no.3
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• pp.582-592
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• 1996

본 실험은 삼차신경 자극으로 발생되는 체성 감각 유발 전위에 대한 국소마취제의 효과를 관찰하였다. 나트륨 통로차단을 통하여 약리작용을 나타내는 것으로 알려져 있는 리도카인를 뇌 피질에 국소 투여한 후 삼차신경의 체성 감각유발 전위의 강도및 지연시간을 측정하였다. 케타민으로 마취된 흰쥐의 대측성 구레나룻 자극후 뇌의 체성 감각영역으로부터 기록되는 유발전위를 분석한 결과, 리도카인을 뇌 피질에 국소 투여시 유발전위의 강도 및 지연시간의 감소가 나타났으며, 필드 전위의 형태는 이상성 (양극성 및 음극성) 혹은 삼상성 (양극성, 음극성 및 양극성) 의 파형으로 나타났다. 필드 전위의 발생 부위는 뇌 피질의 중대뇌동맥의 상행지 상방영역이었다. 본 실험에서 나타난 초기 전위변동은 피질판 상층에 존재하는 신경세포의 탈분극 과청에 의하여 생성되고 후기의 전위 변동은 동일 영역의 하층 신경세포에서 과분극 혹은 재분극이 발생한 결과라고 유추된다. 따라서 삼차신경계의 체성 감각 영역에서는 피질 상층및 하층의 과립성 피라미드 세포의 순차적인 활성화에 의하여 기본적인 신경 회로망이 형성되어 있으며 생리적 자극으로 유발되는 필드 전위는 이러한 신경망를 통하여 발생될 것으로 사료된다.