• Title/Summary/Keyword: 뇌기반 연구

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Quantification of Brain Images Using Korean Standard Templates and Structural and Cytoarchitectonic Probabilistic Maps (한국인 뇌 표준판과 해부학적 및 세포구축학적 확률뇌지도를 이용한 뇌영상 정량화)

  • Lee, Jae-Sung;Lee, Dong-Soo;Kim, Yu-Kyeong;Kim, Jin-Su;Lee, Jong-Min;Koo, Bang-Bon;Kim, Jae-Jin;Kwon, Jun-Soo;Yoo, Tae-Woo;Chang, Ki-Hyun;Kim, Sun-I.;Kang, Hye-Jin;Kang, Eun-Joo
    • The Korean Journal of Nuclear Medicine
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    • v.38 no.3
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    • pp.241-252
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    • 2004
  • Purpose: Population based structural and functional maps of the brain provide effective tools for the analysis and interpretation of complex and individually variable brain data. Brain MRI and PET standard templates and statistical probabilistic maps based on image data of Korean normal volunteers have been developed and probabilistic maps based on cytoarchitectonic data have been introduced. A quantification method using these data was developed for the objective assessment of regional intensity in the brain images. Materials and Methods: Age, gender and ethnic specific anatomical and functional brain templates based on MR and PET images of Korean normal volunteers were developed. Korean structural probabilistic maps for 89 brain regions and cytoarchitectonic probabilistic maps for 13 Brodmann areas were transformed onto the standard templates. Brain FDG PET and SPGR MR images of normal volunteers were spatially normalized onto the template of each modality and gender. Regional uptake of radiotracers in PET and gray matter concentration in MR images were then quantified by averaging (or summing) regional intensities weighted using the probabilistic maps of brain regions. Regionally specific effects of aging on glucose metabolism in cingulate cortex were also examined. Results: Quantification program could generate quantification results for single spatially normalized images per 20 seconds. Glucose metabolism change in cingulate gyrus was regionally specific: ratios of glucose metabolism in the rostral anterior cingulate vs. posterior cingulate and the caudal anterior cingulate vs. posterior cingulate were significantly decreased as the age increased. 'Rostral anterior'/'posterior' was decreased by 3.1% per decade of age ($P<10^{-11}$, r=0.81) and 'caudal anterior'/'posterior' was decreased by 1.7% ($P<10^{-8}$, r=0.72). Conclusion: Ethnic specific standard templates and probabilistic maps and quantification program developed in this study will be useful for the analysis of brain image of Korean people since the difference in shape of the hemispheres and the sulcal pattern of brain relative to age, gender, races, and diseases cannot be fully overcome by the nonlinear spatial normalization techniques.

Development of Empathy Education Program Using Brain-Based Education Principles in Home Economics (뇌기반 교육원리를 적용한 가정과 공감교육 프로그램 개발)

  • Lee, Eunjin;Choi, Saeeun
    • Journal of Korean Home Economics Education Association
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    • v.33 no.2
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    • pp.153-172
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    • 2021
  • The purpose of this study is to develop the Empathy Education Program by employing the brain-based education principle in home economics education. For this purpose, the study used the "ADDE" (Analysis, Design, Development, and Evaluation) method to develope a Empathy Education Program for middle-school students. Analysis from previous literature derived that four principles of brain-based empathy education in home economics education: 1) understanding through imitation; 2) inference through imagination; 3) interaction through experience, and 4) internalization through practice. Based on these brain-based four principles and three components of empathy, a total of 15 lessons were designed and developed for the educational program for middle-school students, "FEEL" (For Empathy Education & Learning). The contents of this program were selected from the analysis of the 2015-revised technology and home economics education curriculum and textbooks. Results from expert evaluation of the validity and feasibility of the program showed that this program is highly valid with an average validity score of 4.88 and 0.98 for the validity index ("CVI"). This study is meaningful in that it can be effectively employed in the middle school free-year policy system. Also, this study contributes to shedding light on the possibility of combining empathy education with home economics education by presenting newly presented elements of empathy and brain-based education principles in home economics education.

CAM-Brain : Neural Networks Evolved on Cellular Automata (CAM-Brain : 셀룰라 오토마타 기반의 진화하는 신경망)

  • 조성배
    • Proceedings of the Korean Information Science Society Conference
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    • 2000.04b
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    • pp.459-465
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    • 2000
  • 최근 들어 인공지능과 뇌과학 분야의 연구성과를 힘입어 뇌의 기본기능을 이해하고 재구축하고자 하는 시도가 활발히 전개되고 있다. 뇌의 정보처리 기능을 실험관찰 방법으로 밝히고자 하는 신경과학, 마음의 정보 처리 기능을 역시 실험관찰 방법으로 이해하고자 하는 심리학, 그리고 정보처리모형의 구성법을 제시하는 컴퓨터과학을 통합함으로써 뇌와 마음의 작동을 정보과학의 입장에서 해명하고자 하는 접근방식이 현재 가장 가능성이 있다고 생각된다. 본 논문에서는 그와 같은 맥락에서 인공적으로 뇌를 구현하기 위하여 제안된 CAM-Brain을 소개하고, 로봇을 제어하는 문제에 적용한 예를 통하여 그 가능성을 보이고자 한다.

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A Review of Research on the Maturation of Children and Adolescences' Brain Structure and the Influence of Intelligence (아동·청소년기 뇌 구조의 성숙과 이에 대한 지능의 영향)

  • Cho, Soohyun
    • Korean Journal of Cognitive Science
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    • v.28 no.4
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    • pp.267-297
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    • 2017
  • The anatomical structure of the brain reflects a great amount of information about an individual's cognitive ability. The present study reviewed research on developmental changes in brain structure in relation to biological maturation and intellectual growth focusing on children and adolescents. The purpose of the present study was to achieve an understanding of how children and adolescents' brain matures with development and also to examine whether individual differences in intelligence influences the development of brain structure. The first section introduces methods of measurement and analysis of brain structure, such as voxel-based morphometry and structural covariance. The second section reviews studies on the biological maturation of the brain and variables that influence brain development such as sex, environmental factors, and mental disorders, etc. The third section introduces the Parieto-Frontal Integration Theory of intelligence and reviews studies on the association between intelligence and developmental changes of the brain, including changes in structural covariance and functional connectivity. We conclude with a discussion on educational/clinical implications of this work and directions for future studies.

Comparative Study on Feature Extraction Algorithms for EEG Based Brain-Computer Interface (뇌전도 기반 뇌-컴퓨터 인터페이스의 특징 추출 알고리즘 비교 연구)

  • Cho, Ho-Hyun;Ahn, Min-Kyu;Jun, Sung-Chan
    • Proceedings of the Korean Information Science Society Conference
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    • 2011.06a
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    • pp.142-145
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    • 2011
  • 뇌전도 기반 뇌-컴퓨터 인터페이스 기술은 신체 움직임이 불가능하거나 불편한 사람에게 새로운 의사전달 수단이 될 수 있으며 일반인에게도 상상만으로 컴퓨터 혹은 기계에 명령을 내릴 수 있게 하는 기술이다. 본 논문에서는 뇌-컴퓨터 인터페이스 연구 분야에 잘 알려진 Common Spatial Pattern (CSP), Invariant Common Spatial Pattern (iCSP) 그리고 Common Spatio-Spectral Pattern (CSSP) 알고리즘들의 성능을 비교 분석하였고, CSSP에 불변성(invariant)을 고려한 iCSSP를 제안하였다. 9명의 피험자로부터 상상움직임 실험을 통해 18셋의 뇌전도 데이터를 측정하였고, 4가지 알고리즘들을 성능 면에서 비교하였다. 그 결과 CSSP의 성능과 차이가 크지는 않지만, 본 연구에서 제안한 노이즈를 고려하여 최적의 필터를 구성하는 iCSSP에 대하여 더 나은 성능을 보여주는 결과들을 확인할 수 있었다.

A Study on the Brain Scientific Mechanism of Drawing Education - Focusing on the Animated Drawing (드로잉 교육의 뇌과학적 기제 연구 - 애니메이션 드로잉을 중심으로)

  • Park, Sung Won
    • Cartoon and Animation Studies
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    • s.36
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    • pp.217-236
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    • 2014
  • This study is a literature analytical process for studying the drawing teaching methods considering the professional characteristics of animation and a principle analytical process for studying the perspective that when teaching methods that consider the function, learning and creative mechanisms of the brain are applied, the animation drawing ability will be effectively increased. In recent years, as an alternative discussion on the educational method of each field, study results applied with brain-based learning principles are being presented. This is not only being applied and implemented for art and drawing education but as overall educational alternatives. On the other hand, animation drawing requires artistic literacy and at the same time requires comprehensive teaching methods that can train the structural knowledge, cognitive sensation and communication method but such professional teaching methods are insufficient. Therefore, the principle of effective education is seen through the brain mechanism and the principle of demonstrating the creativity and learning by the brain is analyzed. In addition, through the fundamental relationship on the picture drawing and the function of the brain, the relationship of the drawing and the brain is identified. As a result, not only for the left brain that observes the cognitive information which can draw the structure and shapes but the right brain which is directly related to the drawing should be developed, but in order to express the creativity, teaching methods that can understand the mechanism of comprehensive brain where physical and psychological factors are expressed should be also developed. It is because the animation drawing education is teaching the methods for demonstrating the characteristics of artistic creativity required for the drawing ability. This process will not only be a foundation for identifying the difference against the previous animation drawing teaching methods, and the brain-based principles will be selected as the core strategic definition for designing the strategy and methodological model of future education.

A Study on Brain Activation during playing a computer game using a fNIRS (컴퓨터 게임 중 fNIRS 기반 뇌 활성화 연구)

  • Kang, Won-Seok;Abibullaev, Berdakh;Lee, SeungHyun;An, Jinung
    • Proceedings of the Korea Information Processing Society Conference
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    • 2009.11a
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    • pp.407-408
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    • 2009
  • fNIRS(functional Near Infrared Spectroscopy)는 비침습형 뇌기능 분석 시스템으로 뇌활성화 시 옥시 헤모글로빈(oxy-hemoglobin)과 디옥시헤모글로빈(deoxy-hemoglobin) 변화량을 측정할 수 있는 장치이다. 본 논문에서는 뇌기능 분석 장치인 fNIRS를 이용하여 피험자가 컴퓨터 게임 중에 어떤 뇌활성화 패턴을 보이는지를 실험하였다. 컴퓨터 게임 주의 및 집중 시 뇌의 전두엽(Frontal Lobe) 영역이 활성화 및 변화되는 것을 실험결과로 확인하였다. 그리고 게임 중 다른 사람이 피험자에게 개입을 하였을 때 전두엽의 활성화 영역이 다른 패턴을 보이는 것을 실험결과로 확인하였다.

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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3D Visualization of MR Images Using Interpolation of Viewing Transformed Images (뇌 MR영상의 뷰잉 변환 특성을 이용한 3차원 가시화를 위한 영상 보간)

  • 송미영;조형제
    • Proceedings of the Korea Multimedia Society Conference
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    • 2002.05c
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    • pp.485-488
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    • 2002
  • 본 논문은 의학 연구 및 교육, 환자 치료를 위해 보다 정확한 정보를 제공하고자 의료 영상 중에 가장 많이 사용하는 의료 영상인 뇌 MR 영상의 횡단면만을 가지고 3차원으로 가시화한다. 3차원으로 재구성하는데 있어서 원 영상의 모형을 자연스러운 표현을 위해서는 층 영상과 층 영상간의 보간 영상이 필요하므로 이를 생성하는 방법에 대해서 제안한다. 그리고 3차원 재구성에 필요한 정보를 추출하기 위해 각 영상에서 머리와 뇌 영역의 윤곽선 정보를 추출하고 가시화의 시간을 줄이기 위해 윤곽선 정보에서 특징점을 추출하여 이를 기반으로 하여 3차원으로 재구성 한다.

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