• 인지과학
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• 제18권4호
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• pp.417-444
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• 2007

일반 숙어들의 구성요소들은 통사적 현상에 적용을 받지 않을 뿐만 아니라, 의미적 합성성원리를 지키지 않는다. 그러나 이러한 숙어들과는 달리 숙어의 구성 소들이 형태, 통사적 현상에 의해 영향을 받거나 의미적 합성 과정을 거치는 숙어들도 존재한다. 본 논문은 한국어에서 이러한 두 가지 유형의 숙어들을 파악하고, 이들의 속성을 살펴본다. 이러한 경험적 연구를 바탕으로, 이들 구문들을 처리할 수 있는 제약기반이론적 분석을 제공한다.

• 인지과학
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• 제6권3호
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• pp.41-63
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• 1995

트리접합문법의 LR상향식 파싱 방법을 제시한다.먼저 트리접합문법의 형식특성을 기술하기 위한 접합규칙 시스템을 도입하여 파싱과정을 효율적으로 수행할 수 있게 한다.트리접합문법은 문맥의존성을 갖고 있는데,접합 순간은 문맥자 유문법 체계로 기술할 수 있음을 보이고,이러한 특성을 기반으로 상향식 파싱방법을 유도한다.본 논문에서 제시한 LR상향식 파싱방법은 트리접합문법에 문맥자유문법의 파싱방법을 변형하여 적용할 수 있음을 보인다.

• Archives of Pharmacal Research
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• 제26권10호
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• pp.821-825
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• 2003

The effects of purple sweet potato anthocyanin (SPA) and Cordyceps mushroom extract (CME) on lipid peroxidation, 1,1-diphenyl-2-picrylhydrazyl (DPPH) radicals and cognitive deficits were examined. Both SPA and CME exhibited DPPH radical scavenging activities with similar potency. In contrast, only SPA was shown to effectively inhibit lipid peroxidation initiated by $Fe^{2+}$ and ascorbic acid in rat brain homogenates. Furthermore, SPA markedly enhanced cognitive performance, assessed by passive avoidance test in ethanol-treated mice. Combined treatments with SPA and CME did not significantly influence the effects of SPA alone. These results demonstrate that anthocyanin prepared from purple sweet potato exhibits memory enhancing effects, which may be associated with its antioxidant properties.

• 말소리와 음성과학
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• 제9권2호
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• pp.53-59
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• 2017

The present study examined if individual listeners' perceptual variations were associated with their cognitive characteristics indexed by the Autistic Spectrum Quotient (AQ). This study first investigated the perception of the lexical pitch accent contrast in the Kyungsang Korean currently undergoing a sound change, and then tested if listeners' perceptual variations were correlated with their AQ scores. Eighteen Kyungsang listeners in their 20s participated in the perception experiment where they identified two contrastive accent words for auditory stimuli systematically varying F0 scaling and timing properties; the participants then completed the AQ questionnaire. In the results, the acoustic parameters reporting reduced phonetic differences across accent contrasts for younger Kyungsang generation played a reliable role in perceiving the HH word from HL, suggesting the discrepancy between the perception and the production in the context of sound change. This study also observed that individuals' perceptual variations were negatively correlated with their AQ sub scores. The present findings suggested that the sound change might appear differently between production and perception with a different time course, and deviant percepts could be explained by individuals' cognitive measure.

• 한국수학교육학회지시리즈A:수학교육
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• 제40권2호
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• pp.335-343
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• 2001

Algebra is important part of mathematics education. Recent days, many mathematics educators emphasize on real world situation. Form real situation, pupils make sense of concepts, and mathematize it by reflective thinking. After that they formalize the concepts in abstract. For example, operation in numbers develops these course. Operation in natural number is an arithmetic, but operation on real number is algebra. Transition from arithmetic to algebra has the cutting point in representing the concepts to mathematics sign system. In this note, we see the cognitive tendency of 10th grade about operation of real number, their cutting point of transition from arithmetic to algebra, and show some methods of helping pupils.

• International journal of advanced smart convergence
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• 제12권1호
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• pp.120-129
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• 2023

Perspective taking, one's knowledge of their own mental and emotional states and inferences about others' mental and emotional states, is an important higher order cognitive skill required in successful writing. However, there has not been much research on the identification and examiantion of the psychometrics of perspective taking. To fill in this gap, I reviewed the psychological and cognitive frameworks of perspective taking including theory of mind, audience awareness, development of epistemological understanding, and argumentation schema. I also reviewed various methods of examining the psychometric properties of perspective taking in written composition, including both manual and computational approaches. The review of literature yielded suggestions on the development of manual coding scheme for perspective taking as well as the selection of indexes to draw from natural language processing tools. Challenges and affordances of combining the manual and computational approach are discussed along with future research directions to advance the field of psycholinguistics.

• 인지과학
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• 제19권3호
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• pp.223-255
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• 2008

본 논문에서 우리는 문장의 문법성과 텍스트의 어휘 응집성 측정을 위주로 하는 영어 작문 자동평가시스템을 소개하려고 한다. 문법 검사를 위해서는 링크 파서를 사용하고 어휘 연쇄를 측정하기 위해서는 로제 시소러스를 사용한다. 자동 평가 시스템의 채점 신뢰도를 측정하기 위해서 자동 채점과 수동 채점의 결과를 통계적으로 비교한다. 카파 통계와 다국면 Rasch 모형에 따른 분석 결과 자동 채점은 수동 채점과 유사성이 크며 수동 채점과 비교해서 신뢰성에 특별한 문제가 없다는 결론을 내리게 된다. 본 연구의 가장 큰 의의는 다양한 종류의 기술과 도구를 바탕으로 신뢰할 만한 수준의 영작문 자동 평가 시스템을 개발했다는 것이다. 평가 대상이 문장 단위를 넘어 선 텍스트 단위이며, 단어나 문법 등의 형식적 측면만 검사하는 것이 아니라 내용적 측면도 평가한다.

• 한국초등과학교육학회지:초등과학교육
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• 제24권1호
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• pp.86-101
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• 2005

In this study, a brain-basrd model for science teaching and learning was developed based on the natural processes which human acquire knowledge about a natural object or on event, the major domains of science educational objectives of the national curriculum, and the human brain's organizational patterns and functions. In the model, each educational objective domain is related to the brain regions as follows: The affective domain is related to the limbic system, especially amygdala of human brain which is involved in emotions, the psychomotor domain is related to the occipital lobes of human brain which perform visual processing, temporal lobes which perform functions of language generating and understandng, and parietal lobes which receive and process sensory information and execute motor activities of body, and the cognitive domain is related to the frontal and prefrontal lobes which are involved in think-ing, planning, judging, and problem solving. The model is a kind of procedural model which proceed fiom affective domain to psychomotor domain, and to cognitive domain of science educational objective system, and emphasize the order of each step and authentic assessment at each step. The model has both properties of circularity and network of activities. At classrooms, the model can be used as various forms according to subjects and student characteristics. STS themes can be appropriately covered by the model.

• 대한본초학회지
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• 제30권2호
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• pp.43-48
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• 2015

Objectives : The aim of this study was to investigate the memory enhancing properties of extract of Hoelen Cum Radix (HCR) and its possible mechanism in mice of normal condition. Methods : We evaluated the effects of HCR on cognitive function and memory enhancement in normal mice. Male ICR mice were orally administrated with HCR 100 mg/kg for 7 days and equal volume of saline was administrated to the control group in the same condition. We conducted two behavioral tests which measure the spatial working memory (Y-maze test) and cognitive fear memory (passive avoidance test). We also investigated whether HCR affects the hippocampal neurogenesis in the brain. To assess the effects of HCR on neural progenitor cell differentiation and neurite outgrowth in the early stage of hippocampal neurogenesis, we performed doublecortin (DCX), a direct neurogenesis marker, immunohistochemical analysis in the dentate gyrus (DG) of the mouse hippocampus. Results : HCR significantly enhanced memory and cognitive function as determined by the Y-maze test (p<0.05) and passive avoidance test (p<0.001). Moreover, HCR increased DCX positive cells (p<0.01) and neurite length (p<0.01) compared to the control group. These results indicated that HCR stimulates differentiation of neural progenitor cells and promotes neurite outgrowth in hippocampal DG of the mice. Conclusion : We concluded that HCR shows memory enhancing effects through the stimulation of hippocampal neurogenesis as a consequence of accelerated neuronal differentiation and neurite outgrowth in the DG of the hippocampus after HCR treatment.

• 한국경영과학회:학술대회논문집
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• 한국경영과학회/대한산업공학회 2003년도 춘계공동학술대회
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• pp.958-965
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• 2003

The rapidly changing business environment has required cooperation and coorduiation among functional units n organizations which should Involve group decision-making processes Although many group derision-making support tools and methods have provided the collaborative capabilities for organizational members, they often lack features supporting the dynamic complexity issue frequently occurring at group decision-making processes This study proposes system dynamics modeling as a group decision-making support tool to deal with the group derision-making tasks having properties of dynamic complexity in terms of cognitive fit theory.