• Title/Summary/Keyword: 신경표상

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The Critical Thinking of Philosophy as a Creative Method of Science: Neurophilosophical Explication (창의적 과학방법으로서 철학의 비판적 사고: 신경철학적 해명)

  • Park, Jeyoun
    • Journal of The Korean Association For Science Education
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    • v.33 no.1
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    • pp.144-160
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    • 2013
  • This study is a proposal, which is the trial to explicate, in neurology, on how critical thinking as a creative method of sciences functions. The creative methods of sciences, even at present, are mostly the hypothetical insistences concerning with the logical processes of researches suggested from the philosophers of science; Popper, Kuhn, Hempel, or Lakatos. These insistences do excavate what process or approach can be scoped out of scientists' creativity. I call the tendency or approach of the researches, "Process Approach of Creativity (PAC)". From my view point, any PAC trial does not concern with how creative theories can actually be invented. On the other hand, this study is focused on the philosophical thinking abilities of scientists who invented new great theories. They mostly had some experiences to study philosophy while studying their science fields, thus had critical thinking abilities on their studies. From my point of view, critical thinking in philosophy raised questions as to their fundamental and basic (old) concepts and principles, and thus gave them new creative theories. I will try to explain this from the point of neurophilosophy. From the perspectives coming from "the state space theory of representation" of Paul & Patricia Churchland, the pioneers of neurophilosphy, the "creative theories" are the networks of topographic maps giving new comprehensive explanations and predictions. From these perspectives, I presuppose that the attitude of critical questioning revises the old networks of maps with back-propagation or feedback, and thus, is the generative power of searching new networks of maps. From the presupposition, I can say, it is important that scientists reflect on the basic premises in their academic branches for issuing out extraordinary creativity. The critical attitude of philosophy can make scientists construct the maps of new conceptual scheme by shaking the maps of the old basic premises. From this context, I am able to propose "Critical Thinking Approach of Creativity (CTAC)".

The Semantic Structure of Synaptic Activation, Likened to Cho Ji-Hoon's Poem 'Line' (조지훈의 시 「선(線)」으로 비유되는 시냅스 활성화의 의미 구조)

  • Park, In-kwa
    • The Journal of the Convergence on Culture Technology
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    • v.3 no.4
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    • pp.21-26
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    • 2017
  • The purpose of this study was to analyze the structure of neurophysiological healing in Cho Ji-Hoon's poem "Line" and to use it in literature therapy program. Research shows that action potentials in the human body represent the mind. In other words, the electric charges appear to be the signs of the mind, and the action potentials of all the charges of the human body are integrated together to systematize the mind. Cho Ji-Hoon's poem "Line" resembles the process of collecting, analyzing, synthesizing and reproducing information, which is the function of the human neurophysiological synapse. This is a useful form of poetry in terms of its application to literary therapy programs. If we develop such a form of literary therapy program as Cho Ji-Hoon's poem, it will be more effective in healing process.

Efficient Analysis of Discontinuous Elements Using a Modified Selective Enrichment Technique (수정된 선택적 확장 기법을 이용한 불연속 요소의 효율적 해석)

  • Lee, Semin;Kang, Taehun;Chung, Hayoung
    • Journal of the Computational Structural Engineering Institute of Korea
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    • v.35 no.5
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    • pp.267-275
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    • 2022
  • Using a nonconforming mesh in enrichment methods results in several numerical issues induced by discontinuities and singularities found within the solution spaces, including the computational overhead during integration. In this study, we present a novel enrichment technique based on the selective expansion technique of moment fitting (Düster and Allix, 2020). In particular, two modifications are proposed to address the inefficiency during the integration process. First, a feedforward artificial neural network is introduced to correlate the implicit functions and integration moments. Through numerical examples, it is shown that the efficiency of the method is greatly improved when compared with existing expansion techniques, whereas the solution accuracy is maintained. Additionally, the finite element and domain representation grids are separated, which in turn improves the solution accuracy even for coarse mesh conditions.

AUTISTIC DISORDER - AN OVERVIEW OF THE NATURE AND THE CHANGING CONCEPTS IN COMMEMORATION OF KANNER'S ORIGINAL PUBLICATION - (자폐장애 - 자폐장애의 본질과 개념변천에 관한 고찰 -)

  • Hong, Kang-E.M.
    • Journal of the Korean Academy of Child and Adolescent Psychiatry
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    • v.4 no.1
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    • pp.3-26
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    • 1993
  • Leo Kanner (1943)의 자폐증에 관한 획기적 논문발표 50주년을 맞아, 자폐증의 개념변천, 분류, 의학, 원인설 및 자폐증의 본질을 문헌고찰을 통해 살펴 보았다. 초기에 자폐증을 정신병의 아형으로 보다가 1980년 (DMS-III)을 기점으로 전반적 발달장애로의 개념 변천이 일어났다 원인설도, 초기의 심리${\cdot}$환경설은 지지 받지 못하고 1960년대에는 신경${\cdot}$생물학적 이상이 자폐병리의 기저를 이룸이 분명해 졌고 1970년대에는 지각과 운동, 감각과 인지 통합의 결함, 심각한 언어, 인지의 장해가 일차적인 결함으로 생각 되었다 최근 1980년 후반기 부터 상징적${\cdot}$표상적 인지의 결함, 타인의 감정과 생각의 이해 결함, 사회적${\cdot}$정감적 표현의 결함등 사회${\cdot}$정서발달의 이상이 자폐의 근본적 결함이라는 비교 관찰 연구가 많이 보고되어, 자폐증의 근본적이고 일차적인 결함이 정감적 접촉의 선천적 장애라는 Kanner의 놀라운 임상적 통찰을 증명해 주고 있다. 저자는 이상의 광범위한 문헌 고찰을 통해 자폐장애를 일차성 애착장애로 개념화하고 앞으로 치료, 교육의 방향도 일차적으로 사회${\cdot}$정서발달에 촛점을 두어야 하며, 특히 어머니와의 애착증진 치료가 필요함을 제안하고 있다.

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A Individualized Reasoning Strategy using Learner's Cognitive Union (학습자 인지 구조체를 이용한 추론의 개별화 전략)

  • Kim, Yong-Beom;Kim, Yungsik
    • The Journal of Korean Association of Computer Education
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    • v.9 no.5
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    • pp.31-39
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    • 2006
  • The change into the knowledge based information society requires a transformation of educational paradigm. Accordingly, intelligent learning and distance education are attracting a fair amount of attention. To apply the instructional learning method in this field, we need to consider a individualization of learning, as it were, abstraction of fact and path through learning, which is based on learner's traits, this focus entails a argument for individualized reasoning strategy. Therefore, in this paper, we design a learner's cognitive union, which is based on X-Neuronet(eXtended Neuronet), represent learner's hierarchical knowledge is able to self-learn, and grows adaptive union by proprietor. Additionally, we propose a individualized reasoning strategy, which relies upon learner's cognitive union, and verify the validity.

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Korean Named Entity Recognition Using BIT Representation (BIT 표기법을 활용한 한국어 개체명 인식)

  • Yoon, Ho;Kim, Chang-Hyun;Cheon, Min-Ah;Park, Ho-Min;Namgoong, Young;Choi, Min-Seok;Kim, Jae-Kyun;Kim, Jae-Hoon
    • Annual Conference on Human and Language Technology
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    • 2019.10a
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    • pp.190-194
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    • 2019
  • 개체명 인식이란 주어진 문서에서 개체명의 범위를 찾고 개체명을 분류하는 것이다. 최근 많은 연구는 신경망 모델을 이용하며 하나 이상의 단어로 구성된 개체명을 BIO 표기법으로 표현한다. BIO 표기법은 개체명이 시작되는 단어의 표지에 B(Beginning)-를 붙이고, 개체명에 포함된 그 외의 단어의 표지에는 I(Inside)-를 붙이며, 개체명과 개체명 사이의 모든 단어의 표지를 O로 간주하는 방법이다. BIO 표기법으로 표현된 말뭉치는 O 표지가 90% 이상을 차지하므로 O 표지에 대한 혼잡도가 높아지는 문제와 불균형 학습 문제가 발생된다. 본 논문에서는 BIO 표기법 대신에 BIT 표기법을 제안한다. BIT 표기법이란 BIO 표기법에서 O 표지를 T(Tag) 표지로 변환하는 방법이며 본 논문에서 T 표지는 품사 표지를 나타낸다. 실험을 통해서 BIT 표기법이 거의 모든 경우에 성능이 향상됨을 확인할 수 있었다.

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A Review of the Neurocognitive Mechanisms of Number Sense (수 감각의 인지신경학적 기반에 관한 연구 개관)

  • Cho, Soohyun
    • Korean Journal of Cognitive Science
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    • v.24 no.3
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    • pp.271-300
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    • 2013
  • Human and animals are born with an intuitive ability to determine approximate numerosity. This ability is termed approximate number sense (hereafter, number sense). Evolutionarily, number sense is thought to be an essential ability for hunting, gathering and survival. According to previous research, children with mathematical learning disability have impaired number sense. On the other hand, individuals with more accurate number sense have higher mathematical achievement. These results support the hypothesis that number sense provides a basis for the development of mathematical cognition. Recently, researchers have been examining whether number sense training can lead to enhancement in mathematical achievement and changes in brain activity in relation to mathematical problem solving. Numerosity which basically represents discontinuous quantity is expected to be closely related to continuous quantity such as representations of space and time. A theory of magnitude (ATOM) states that processing of number, space and time is based on a common magnitude system in the posterior parietal cortex, especially the intraparietal sulcus. The present paper introduces current literature and future directions for the study of the common magnitude system.

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Brain Function During Recall of Anger Experience According to the Level of Trait Anger (분노 경험 회상시 특성 분노 수준에 따른 뇌 기능)

  • Eum, Young-Ji;Lee, Kyung Hwa;Sohn, Jin-Hun
    • Science of Emotion and Sensibility
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    • v.21 no.3
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    • pp.49-60
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    • 2018
  • Trait anger is one of the psychological traits associated with experiences of anger. Individuals with high trait anger become angry easily at trivial events, and experience anger more frequently, intensely, and over a longer duration. This study aimed to investigate neural responses during experiences of anger, and identify the neural correlates of trait anger. Thirty five adults participated in the functional magnetic resonance (fMRI) experiment. They were scanned while they recalled an anger-inducing memory that was supposed to evoke an experience of anger. During the angry recall compared to the emotionally neutral recall, our participants showed greater neural activation in the right superior temporal gyrus (BA38), left inferior frontal gyrus (BA45), right thalamus, right insula (BA13), bilateral cuneus (BA17), and right cerebellum anterior lobe. The correlation analysis revealed that trait anger scores were positively associated with right insula activity during the angry recall. Individuals with higher trait anger were more likely to show greater activity in the right insula in response to past experiences of anger, as previously implicated in various studies of emotional processing. This finding suggests that trait anger may be an important factor in modulating anger-related brain activity.

Exploring the contextual factors of episodic memory: dissociating distinct social, behavioral, and intentional episodic encoding from spatio-temporal contexts based on medial temporal lobe-cortical networks (일화기억을 구성하는 맥락 요소에 대한 탐구: 시공간적 맥락과 구분되는 사회적, 행동적, 의도적 맥락의 내측두엽-대뇌피질 네트워크 특징을 중심으로)

  • Park, Jonghyun;Nah, Yoonjin;Yu, Sumin;Lee, Seung-Koo;Han, Sanghoon
    • Korean Journal of Cognitive Science
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    • v.33 no.2
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    • pp.109-133
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    • 2022
  • Episodic memory consists of a core event and the associated contexts. Although the role of the hippocampus and its neighboring regions in contextual representations during encoding has become increasingly evident, it remains unclear how these regions handle various context-specific information other than spatio-temporal contexts. Using high-resolution functional MRI, we explored the patterns of the medial temporal lobe (MTL) and cortical regions' involvement during the encoding of various types of contextual information (i.e., journalism principle 5W1H): "Who did it?," "Why did it happen?," "What happened?," "When did it happen?," "Where did it happen?," and "How did it happen?" Participants answered six different contextual questions while looking at simple experimental events consisting of two faces with one object on the screen. The MTL was divided to sub-regions by hierarchical clustering from resting-state data. General linear model analyses revealed a stronger activation of MTL sub-regions, the prefrontal lobe (PFC), and the inferior parietal lobule (IPL) during social (Who), behavioral (How), and intentional (Why) contextual processing when compared with spatio-temporal (Where/When) contextual processing. To further investigate the functional networks involved in contextual encoding dissociation, a multivariate pattern analysis was conducted with features selected as the task-based connectivity links between the hippocampal subfields and PFC/IPL. Each social, behavioral, and intentional contextual processing was individually and successfully classified from spatio-temporal contextual processing, respectively. Thus, specific contexts in episodic memory, namely social, behavior, and intention, involve distinct functional connectivity patterns that are distinct from those for spatio-temporal contextual memory.

CHILDHOOD TRAUMA:PSYCHIATRIC OVERVIEW (아동기 외상의 정신과적 개관)

  • Han, Sung-Hee
    • Journal of the Korean Academy of Child and Adolescent Psychiatry
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    • v.13 no.1
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    • pp.3-14
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    • 2002
  • Childhood psychic trauma appears to be a crucial factor in the development of serious disorders both in childhood and in adulthood. Traumatized children show strong tendency to revisualize or re-feel a traumatic events. Play and behavioral reenactments are frequent manifestations of both the single blow and the long-standing traumas in childhood. Those children who suffer the results of single, intense terror appear to exhibit detailed memory, retrospective reworkings and misperceptions. In long-standing or repetitive trauma, children would show psychic numbing, self-hypnosis, dissociation and rage. Child's brain is undergoing critical and sensitive periods of differentiation. During this time, developing central nervous system is exquisitely sensitive to stress. Stressor-activated neurotransmitters and hormones can play major roles in neurogenesis, migration, synaptogenesis, and neurochemical differentiation. Internal opiate system operates in some trauma and causes the victim to fail to respond, to avoid, to shut off feelings. Evidence is also accumulating in traumatology that dysfuntion of locus coeruleus and ventral tegmental neucleus system leads to catecholamine receptors hypersensitivity. This change result in hypervigilance, increased startle, affective lability, and increased autonomic nervous system hyperreactivity. Another site of action of trauma on the brain is hypothalamic-pituitary-adrenal axis. Individuals with PTSD do not have enough cortisol to halt the alarm reaction. When children are exposed to long-standing extreme events, massive attempts to protect the psyche and to preserve the self are put into gear. These developmental traumas mobilize various kinds of defense mechanisms. Massive denial, dissociation, self anesthesia, identification with aggressor and aggression turned against the self often lead to profound character changes in the youngsters.

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