• Title/Summary/Keyword: 기능 활성화

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Brain Activation during Intentionality Detection: An fMRI Study (지향성 탐지 과정의 뇌 활성화: 기능적 자기공명 영상 연구)

  • Lee, Seung-Bok;Park, Min;Yoon, Hyo-Woon;Ghim, Hei-Rhee
    • Korean Journal of Cognitive Science
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    • v.17 no.1
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    • pp.1-13
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    • 2006
  • We applied fMRI to examine brain activation at intentionality detection (ID) task. The main purpose of this study was to explore whether brain activation regions involved in intentionality detection (known as the basic mechanism of theory of mind) differ or not, according to prior instruction. Left uncus, superior temporal gyrus and right inferior occipital gyrus, supramarginal gyrus, inferior parietal lobule, thalamus (medial dorsal nucleus), and precuneus were activated with prior instruction. In contrast, ID task with no instruction activated merely inferior parietal lobule and superior parietal lobule. Common activated area between the two instruction conditions was inferiordparietal lobule. Our results suggest thar prior instruction activated ID-related brain regions more explicitly. furtherdinvestigations would be loused on spontaneity of intentionality detector and characteristic of participants.

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Fuctional MRI for Phobic Stimuli: Comparison study between Post Traumatic Stress Disorder (PTSD) and Control groups

  • 박지강;박종익;이호규;문찬흥;유재욱
    • Proceedings of the KSMRM Conference
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    • 2001.11a
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    • pp.106-106
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    • 2001
  • 목적: 일반인과 외상성 스트레스 장애환자들(PTSD)에서 동일한 공포 자극에 대한 기능적 뇌 자기ㆍ공명영상에서 뇌 활성화 부위의 차이를 알아보고자 하였다. 대상 및 방법: 대조군 (여자9명)과 외상성 스트레스 장애로(PTSD) 진단된 환자군 (여자9명)을 대상으로 하였고 모두 오른손잡이였다. 외상성 스트레스 장애군은 모두 교통사고와 관련되어 있었다. 1.5T MR 기기에서 EPI BOLD 기법을 이용하여 24개의 axial slice를 얻었으며, 시각자극으로 교통사고 현장 사진과 비교군으로 체크 무의 사진을 무작위로 배열하여 각각 1초씩 보여 주었다 (event related design). SOA (Stimulus Onset Asynchrony)는 3.5초로 하였고 전체 영상은 10분 동안 얻었다. 모든 환자에서 기능적 자기공명 영상은 1차례 시행하였다. 영상후 처리는 SPM 분석 프로그램을 사용하였으며 황성화 신호의 유의수준은 p=0.01을 기준으로 활성화 영상을 얻었다. 활성화 신호를 육안으로 비교 분석하였고 해마, 편도핵, 전전두엽의 활성화 정도를 중심으로 평가하였다.

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양계인 권익보호를 위한 의욕과 실천

  • 오세정
    • KOREAN POULTRY JOURNAL
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    • v.16 s.172
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    • pp.35-37
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    • 1984
  • 양계산업발전을 위한 행정조직의 개편과 안정기금의 조성을 통해 협회기능이 활성화되어야하며 유통기능에 생산자가 참여하고 생산성 향상을 위한 보다 창의적인 개선의지가 선행되길$\cdots$

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A Study of the Activation Plan for the Hinterland of Gwangyang Port using Delphi/Fuzzy-AHP (Delphi/Fuzzy-AHP를 이용한 광양항 배후단지 활성화 방안에 관한 연구)

  • Kim, Seon-Gu;Choi, Yong-Seok
    • Proceedings of the Korean Institute of Navigation and Port Research Conference
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    • 2012.06a
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    • pp.240-241
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    • 2012
  • The purpose of this study is to propose a development strategy and an activation plan of port hinterland. To do this, we design a Delphi/Fuzzy-AHP model using Delphi and Fuzzy-AHP.

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Functional MRI of Language Area (언어영역의 기능적 자기공명영상)

  • 유재욱;나동규;변홍식;노덕우;조재민;문찬홍;나덕렬;장기현
    • Investigative Magnetic Resonance Imaging
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    • v.3 no.1
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    • pp.53-59
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    • 1999
  • Purpose : To evaluate the usefulness of functional MR imaging (fMRI) for language mapping and determination of language lateralization. Materials and Methods : Functional maps of the language area were obtained during word generation tasks and decision task in ten volunteers (7 right handed, 3 left-handed). MR examinations were performed at 1.5T scanner with EPI BOLD technique. Each task consisted of three resting periods and two activation periods with each period of 30 seconds. Total acquisition time was 162 sec. SPM program was used for the postprocessing of images. Statistical comparisons were performed by using t-statistics on a pixel-by- pixel basis after global normalization by ANCOVA. Activation areas were topographically analyzed (p>0.001) and activated pixels in each hemisphere were compared quantitatively by lateralization index. Results : Significant activation signals were demonstrated in 9 of 10 volunteers. Activation signals were found in the premotor and motor cortices, the inferior frontal, inferior parietal, and mid-temporal lobes during stimulation tasks. In the right handed seven volunteers, activation of language areas was lateralized to the left side. Verb generation task produced stronger activation in the language areas and higher value of lateralization index than noun generation task or decision task. Conclusion : fMRI could be a useful non-invasive method for language mapping and determination of language dominance.

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벤처캐피털 선진화로 벤처 활성화를 이루자

  • Korea Venture Business Association
    • Venture DIGEST
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    • s.77
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    • pp.12-13
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    • 2005
  • 벤처산업 활성화를 위한 목소리가 높아지면서 그 어느 때보다 벤처캐피털에 대한 관심이 집중되고 있다. 벤처기업의 자금난 해소를 위해 투자기능을 발휘해 온 벤처캐피털은 정부의 보완대책을 기점으로 더욱 선진화된 모습으로의 변화를 꾀하고 있다. 벤처캐피털의 필요성과 역할, 향후 전망을 통해 벤처캐피털을 재발견해 보자.

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A Study about UCC Video Authoring Tool Enhancement Methods for Revitalization of Learning Contents (러닝콘텐츠의 활성화를 위한 UCC동영상 저작도구 개선방안 연구)

  • Lee, Ju-Ho;Kim, Kyung-A;Moon, Nam-Mee
    • Proceedings of the Korean Society of Broadcast Engineers Conference
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    • 2009.11a
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    • pp.391-394
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    • 2009
  • 본 논문에서는 러닝 콘텐츠의 생산성을 높이기 위해 초보자도 쉽게 사용 할 수 있는 UCC동영상 저작도구의 개선방안을 제시한다. 분석 방법으로 첫째, 초보자들이 사용하는 UCC동영상 저작도구와 고급동영상 저작 도구를 사용자 인터페이스 측면, 기능적 측면으로 분석 요소를 한정하여 분석하고, 러닝콘텐츠의 특성인 학습활동을 목적으로 한 학습 관련자원의 활용 정도를 UCC동영상 저작도구와 러닝저작도구를 분석 대상으로 하여 비교 분석 하였다. 이 두 분석결과를 종합하여 인터페이스 측면, 기능적 측면에서 개선방안을 제시 하였다. 인터페이스 측면에서는 복합타임라인을 통해 타임라인, 스토리보드, 블록기능을 하나의 메뉴로 구성하여 러닝콘텐츠 제작 시 혼동을 줄여 주며 기능적 측면에서는 자동 스토리보드 블록, 기능 편집, 클릭제작 3가지의 개선사항을 도출하여 초보자도 쉽게 러닝 콘텐츠를 제작할 수 있도록 제안하였다. UCC동영상 저작도구의 사용성 개선을 바탕으로 향후 UCC동영상 중심의 러닝콘텐츠가 활성화 될 것으로 기대한다.

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Quantitative EEG research by the brain activities on the various fields of the English education (영어학습 유형별 뇌기능 활성화에 대한 정량뇌파연구)

  • Kwon, Hyung-Kyu
    • Journal of the Korean Data and Information Science Society
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    • v.20 no.3
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    • pp.541-550
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    • 2009
  • This research attempted to find out any implications for strategies to design and develop the connections between the activities of the brain function and the fields of English learning (dictation, word level, speaking, word memory, listening). Thus, in developing the brain based learning model for the English education, attempts need to be made to help learners to keep the whole brain toward learning. On this point, this study indicated the significant results for the exclusive brain location and the brainwaves on the each English learning field by the quantitative EEG analysis. The results of this study presented the guidelines for the balanced development of the left brain and the right brain to train the specific site of the brain connected to the English learning fields. In addition, whole brain training model is developed by the quantitative EEG data not by the theoretical learning methods focused on the right brain training.

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A Functional MR Imaging Study of Reading (읽기의 기능적 자기공명영상에 관한 연구)

  • 유재욱;나동규;변홍식;최대섭;문찬홍;이은정;정우인
    • Investigative Magnetic Resonance Imaging
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    • v.3 no.1
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    • pp.78-83
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    • 1999
  • Purpose : To evaluate the language areas activated by fMRI during different reading tasks and to assess the difference of activated areas according to each reading task. Materials and Methods : Functional maps of the language area were obtained during three reading tasks(Korean consonant letter, pseudoword, and word) in nine right-handed volunteers(7 males 2 females). MR examinations were performed at 1.5T scanner with EPI BOLD technique(gradient echo shot EPI, TR/TE 3000/60, flip angle $90^{\circ}$, matrix $64{\times}64$, 5mm thickness, no slice gap). Each task consisted of three resting periods and two activation periods and each period lasted 30 seconds. We used SPM program for the postprocessing of images and signification level was set at p<0.01. Activated areas were topographically analyzed in each stimulus. Results : Significant activated signals were demonstrated in all volunteers. Activated signals were seen in the frontal, temporal, parietal and occipital lobes during reading tasks and they were lateralized to the left hemisphere except occipital lobe. Letter and pseudoword produced stronger activated signals than word, and the activated signals were more lateralized to the left hemisphere in pseudoword reading than in letter reading. Conclusion : Activated signals were induced in the language areas by reading task of letter or wordform. Greater activation of language areas was induced when letter or pseudowords were presented than familiar words.

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Analysis of Supporting Function for Invigorating Aerospace Cluster focused on the case of Gyeongsangnam-do (항공산업 클러스터 활성화를 위한 지원 기능 분석 -경남을 중심으로-)

  • Han, Kwan-Hee;Jeong, Dong-Min;Ok, Ju-Seon;Jeon, Jeong-Hwan
    • The Journal of the Korea Contents Association
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    • v.14 no.4
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    • pp.314-324
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    • 2014
  • Aerospace industry is a combination of high technologies which has several characteristics such as product reliability, precision, light weight, and energy efficiency. Nowadays, each country is trying to invigorating knowledge and information sharing between the companies for the synergy effect of aerospace industry. However, the research and empirical analysis on the vitalization of aerospace industry cluster are insufficient. Therefore, this study aims to firstly classify the supporting functions of government for aerospace industry cluster into five types by analyzing existing literatures and status reports issued by government. Secondly, companies are surveyed on the five classified types of supporting functions by questionnaire. Questionnaire survey responded by 30 aerospace companies in Gyeongnam aerospace industry cluster are analyzed. Quantitative analysis methods were used for statistical analysis. Based on the analysis, improvement directions of government supporting functions are suggested. The results of this study is expected to help policy making for invigorating the aerospace industry cluster.