1 Hz와 20 Hz 역치하 반복경두부자기자극에 의한 대뇌피질 흥분도 변화

유우경,정광익,이주형,최은희,전아영,김종철,안효제 대한재활의학회 2003 Annals of Rehabilitation Medicine Vol.27 No.6

연하 장애를 가진 뇌졸중 환자의 비위관 삽입이 연하 기능에 미치는 영향

유우경,윤석봉,소은하,정승석 대한재활의학회 2001 Annals of Rehabilitation Medicine Vol.25 No.5

메타가소성 개념

유우경 대한뇌신경재활학회 2014 뇌신경재활 Vol.7 No.1

The concept of metaplasticity entails a change in the physiological or biochemical state of synapsesthat alters their ability to generate synaptic plasticity by integrating individual synaptic events. Thecharacteristics of metaplasticity would be the fact that those synaptic changes last in certain periodtime with association of activity in time, homosynaptically or heterosynaptically. Recently introducednon-invasive brain stimulation enables us to observe the metaplastic changes in vivo, which would giveus a insight in developing new effective therapeutic approach based on synaptic plasticity andmetaplasticity.

대학 신입생의 음주행위에 관한 연구

유우경 明知大學校 學生生活硏究所 2006 學生指導 Vol.18 No.-

본 연구의 목적은 대학 신입생의 음주행위에 대해 조사하는 데 있다. 보다 구체적으로 신입생들의 음주경험 여부, 음주경험 시기, 음주경험 동행대상, 음주 동료, 최근 음주, 음주 빈도, 음주 종류, 음주량에 대해 알아보고 성별에 따라서 어떠한 차이가 있는지를 조사하고자 한다. 조사대상을 서울 소재 대학교에 재학중인 283명의 대학 신입생이었다. 283명의 조사대상 중에서 남학생이 129명(45.6%)이었고, 여학생이 154명(54.4%)이었다. 연구결과는 다음과 같다. 음주행위에 있어 음주경험이 있는 대학신입생이 93.5%로 매우 많았으며, 음주경험 시기로는 고등학교, 중학교, 고등학교 졸업 이후의 순으로 나타났다. 음주 경험 당시 동행 대상으로는 친구가 62.4%로 다른 대상들보다 상대적으로 높았으며, 음주를 할 경우 음주 동료는 동성 친구가 70.7%로 다른 대상들보다 높게 나타났다. 최근 음주에 있어서 1주일 이내가 69.7%로 가장 많았으며, 음주 빈도는 1주일에 한번인 경우가 36.2%로 가장 많은 응답을 보였다. 음주 종류로는 소주를 마시는 비율이 69.8%로 나타나 다른 음주 종류에 비해 상대적으로 의존도가 높음을 알 수 있었다. 마지막으로 음주량에 대해 조사한 결과 남학생은 평균 9.23잔, 여학생은 평균 5.79잔을 마시는 것으로 나타나 남학생이 여학생에 비해 평균 음주량이 높음을 알 수 있다. 통계적으로도 유의한 차이가 있었다. The purpose of this study is that research about university freshman's drinking behavior. More concretely freshman's drinking experience availability, drinking experience time, drinking colleague in drinking experience, drinking colleague, recent drinking, drinking frequency, drinking kind, the drinking amount and wish to investigate whether it is some difference according to distinction of sex. The investigation object was an university freshman of 283 who is the in university at Seoul. Among them, there were 129 male(45.6%) students and 154 female(54.4%) students. The results of the study were as follows: University freshman with drinking experience in drinking behavior was very many by 93.5% and drinking experience appears sequentially by high school, middle school, high school graduation. Drinking colleague in drinking experience is more relatively many in friend than subjects by 62.4% and In case drink, drinking colleague appeared as a same sex friend is more than other subjects by 70.7%. Recently the drinking was most by 69.7% within 1 week and drinking frequency is most by case 36.2% that is one times in 1 week. Drinking kind could know that soju was most by 69.8% and this is high dependence relatively than other drinking kind. Finally, result that study about the drinking amount is that man university freshman average is 9.23 cups, woman university freshman average is 5.79 cups. and boy student is high the average drinking amount than girl student. This result appears that man university freshman is high than woman university freshman in average drinking amount. This result was difference in statistical.

진로 구성 상담에 참여한 성인 내담자들의 진로 설계 유형 연구

유우경 한국직업교육학회 2020 職業 敎育 硏究 Vol.39 No.1

The purpose of this study is to provide basic data for effective intervention in coming career construction counseling and adult career guidance by analyzing the career design types of adult clients who participated in it. The participants were seven adults who were working or looking for a job after college, and each of them participated in counseling to solve the problem of career transition. The counselor used six questions of career composition interviews to draw out the small stories of the clients, and they created an biographical grand career story called life portraits through the process of construction, deconstruction, re-construction and co-construction of them. In this counseling, clients became clear about their career path and became convinced that they should pursue their life as the main character of their life story. The research questions were set as what types of career design in the clients can be classified in this counseling process. For this purpose, the grounded theory method was applied and the client's change design type was derived as a part of revealing the substantive theory of the change process. As a result, the client types of ‘self-expansion design type’, ‘internal defense design type’ and ‘others consciousness design type’ were identified. Based on these results, the characteristics of the client types facing the career field were discussed in various ways from the perspective of career adaptability. And, the benefits of career design services and the importance of storytelling with the reflection and reflexivity in the process were also discussed. The implications include the specific measures for differentiated approach according to client’s types, the need for preventive measures of career design services, and the use of storytelling intervention with the reflection and reflexivity in career practice. 본 연구의 목적은 진로 구성 상담에 참여한 성인 내담자의 진로 설계 유형을 분석함으로써 향후 진로 구성 상담과 성인 진로 지도에 효과적인 개입을 위한 기초 자료를 제공하는데 있다. 연구 참여자들은 대학 졸업 이후 직장 생활하고 있거나 구직 활동을 하고 있는 성인 7명이다. 이들은 각자 진로 전환의 문제 해결을 위하여 상담에 참여하였다. 상담자는 진로 구성 인터뷰의 6가지 질문을 사용하여 내담자들의 작은 스토리들을 이끌어내고, 내담자와 함께 이들을 구성-해체-재구성-공동구성하여 생애 초상화라는 전기적 거대 진로 스토리를 만들어 내었다. 본 상담 과정을 통하여 내담자들은 자기 진로를 명료화하게 되었고 자기 스토리의 주인공으로서의 삶을 추구해야겠다는 확신을 하게 되었다. 연구 문제는 본 상담 과정에서 내담자들의 진로 설계 변화 과정을 어떠한 유형으로 구분할 수 있는가로 삼았다. 이를 위해 근거이론 방식을 적용하였으며, 변화 과정에 대한 실체적 이론을 밝히는 일환으로 내담자 변화 유형을 도출하고 자 하였다. 그 결과 ‘자기 확장 설계형’, ‘내적 방어 설계형’, 그리고 ‘타인 의식 설계형’ 3가지의 내담자 유형을 밝혀내었다. 이러한 결과를 바탕으로 진로 현장에서 마주하는 내담자 유형들의 특성을 진로 적응가능성(adaptability) 관점에서 다양하게 논의하였고, 또한 진로 설계 서비스의 유익함과 그 과정에서 반성(reflection)과 성찰(reflexivity)을 통한 스토리텔링의 중요성을 함께 논의하였다. 시사점으로는 내담자 유형에 따른 차별화된 접근을 위한 구체적 방안, 진로설계 서비스의 예방적인 차원에서 필요성 제기, 그리고 진로 실무에서 반성과 성찰을 통한 스토리텔링의 개입을 제시하였다.

반복 경두개자기자극을 통한 신경망 조절

유우경 대한뇌신경재활학회 2015 뇌신경재활 Vol.8 No.2

Repetitive transcranial magnetic stimulation (rTMS) is a non-invasive method to produce potent changes in cortical excitability. Therefore, the application of rTMS was recently proposed to promote functional recovery in stroke patients, owing to the induced neuroplasticity. It is important to note that stimulating the brain at a specific site does not only affect the neuronal activity at that site, but the activity throughout the entire neural network. In this review, both local and distant effect of rTMS through related network will be discussed based on previous neuroimaging evidences showing network plasticity. We’d like to extend the discussion to stroke patients, which would be useful for application of rTMS in the clinical rehabilitation field.

피질하 뇌출혈 환자에서 손의 운동기능 회복

유우경,소은하,윤석봉,정승석 대한재활의학회 2002 Annals of Rehabilitation Medicine Vol.26 No.6

온라인게임 몰입과 중독이 충동성에 미치는 영향

유우경 미래를 여는 청소년학회 2007 미래청소년학회지 Vol.4 No.2

The purpose of this study was to find the effect of online game flow and addiction on impulsiveness with adolescent. To accomplish the purpose of the research, the subjects were 152 adolescents of online gamer in Seoul. The results of the study were as follows. First, the effect of online game flow and addiction on impulsiveness was that online game addiction influence to impulsiveness. But online game flow didn't influence to impulsiveness. on the other hand, online game flow influenced to impulsiveness indirectly in path analysis. 본 연구의 목적은 청소년을 대상으로 온라인게임 몰입과 중독이 충동성에 미치는 영향에 대해 조사하는 데 있다. 이를 위해 서울 소재의 중ㆍ고등학생 중 온라인게임을 이용하는 152명을 대상으로 온라인게임 몰입과 중독이 충동성에 미치는 영향, 온라인게임 몰입 및 중독과 충동성간의 경로에 대해 살펴보았다. 연구결과, 다음과 같은 논의 및 결론이 도출되었다. 첫째, 온라인게임 몰입과 중독이 충동성에 미치는 영향에 있어서는 중독은 충동성에 영향을 주는 것으로 나타났다. 반면 몰입은 충동성에 영향을 미치지 않았다. 둘째, 온라인게임 몰입 및 중독과 충동성간의 경로를 통해 몰입이 중독을 통해 충동성에 간접적으로 영향을 미치는 것으로 나타나 몰입 정도가 지나쳤을 경우에는 충동적인 행동을 유발시킬 수 있다는 것을 알 수 있었다.

비가압 성형한 Fe 나노분말응집체의 소결거동

유우경,정성수,이재성,You, Woo-Kyung,Jung, Sung-Soo,Lee, Jai-Sung 한국분말야금학회 2008 한국분말재료학회지 (KPMI) Vol.15 No.4

Sintering behavior of iron nanopowder agglomerate compact prepared by slurry compaction method was investigated. The Fe nanopowder agglomerates were prepared by hydrogen reduction of spray dried agglomerates of ball-milled $Fe_2O_3$ nanopowder at various reduction temperatures of $450^{\circ}C$, $500^{\circ}C$ and $550^{\circ}C$, respectively. It was found that the Fe nanopowder agglomerates produced at higher reduction temperature have a higher green density compact which consists of more densified nanopowder agglomerates with coarsed nanopowders. The sintering behavior of the Fe nanopowder agglomerates strongly depended on the powder packing density in the compact and microstructure of the agglomerated nanopowder. It was discussed in terms of two sintering factors affecting the entire densification process of the compact.

정상 성인에서 수부 운동 시 동측 운동영역의 흥분도 변화

유우경,전아영,정광익,박동식,주영수 대한재활의학회 2004 Annals of Rehabilitation Medicine Vol.28 No.2

Objective: To observe the effect of complexity of unilateral hand activity or dominance of hand on ipsilateral motor cortex excitability. Method: Twenty healthy volunteers of right handedness were recruited. We applied the transcranial magnetic stimulation on right hemisphere, and measured motor evoked potential (MEP) at left first dorsal interossei (FDI). We observed the changes of MEP amplitude during the execution of three different complexities of right finger movement. We set the motor tasks as (1) relaxed state, (2) repetitive opposition of 3rd finger (simple exercise) and (3) opposition of 3rd, 5th, 2nd, 4th finger (complex exercise). These tasks were performed within one minute, and repeated 3 times. To observe the effect of hand dominance, we also measured MEP at right FDI during left hand movements. Results: Ipsilateral motor cortex was significantly facilitated by ipsilateral voluntary hand activity (p<0.01). And the MEP amplitude was also increased by complexity of hand exercise. Conclusion: We found that the excitability of ipsilateral motor cortex was changed by unilateral hand exercise, and the excitability was increased by complexity of hand exercise.