• 생약학회지
• /
• 제44권1호
• /
• pp.41-46
• /
• 2013

Alzheimer's disease (AD), most common form of dementia is characterized that memory deficit and loss of cognitive function. The Codonopsis lanceolata (C.lanceolata) was treated by high hydrostatic pressure process and fermentation. This study was evaluated cognitive enhancing effect C.lanceolata extract by high hydrostatic pressure process and fermentation and compared with common C.lanceolata extract using Morris water maze and passive avoidance test. And their neuroprotective effect on glutamate induced oxidative stress in HT22 cell was investigated by MTT assay. High hydrostatic pressure process and fermented C.lanceolata extract (HFCE) and common C.lanceolata extract (CCE) (100 and 300 mg/kg) were administered to mice. Results showed HFCE enhanced cognitive function than CCE as shown by decrease in escape latency time. HFCE increased the latency time of the passive avoidance test compared to CCE. Furthermore, HFCE showed significant neuroprotective effect against glutamate cytotoxicity in HT22 cells. These results indicate that high hydrostatic pressure process and fermented more improve spatial cognitive ability of C. laanceolata.

• 한국정보통신학회논문지
• /
• 제26권8호
• /
• pp.1158-1164
• /
• 2022

본 연구는 모바일 간편결제 시스템을 사용하는 과정에서 지속적인 사용 의도를 형성하기 위해 신뢰가 구축되는 과정을 감성적 반응 과정과 인지적 반응 과정을 구분하고, 여러 외부 요인들이 각 반응 과정을 통해 지속적 사용 의도 즉, 행동적 반응을 발생시키는 과정을 살펴보았다. 외부 요인은 사회적(사회적 규범, 이미지), 시스템적(간편성, 접근성), 사회적(보안성, 호환성) 특성으로 구분하고, 감성적 반응은 즐거움과 정서적 신뢰, 인지적 반응은 인지적 신뢰, 그리고 종속 변수는 지속 사용의도로 설정하고, 모형 분석을 위해 설문 조사를 실시하고, 분석 결과를 도출하였다.

• 컴퓨터교육학회논문지
• /
• 제11권3호
• /
• pp.43-55
• /
• 2008

본 연구는 학습(learning)을 통해 습득된 추상적 형태의 암묵적인 지식(implicit knowledge)을 전달하거나 명시적인 형태로 재구성(reconstruction)할 때 지식을 어떤 방법으로 표현하거나 재구성해야 하는지, 그리고 어떤 표현 방법이 자신의 생각과 지식을 효과적으로 전달하는데 중요한 요소로 작용하는지에 대한 연구를 다룬다. 현재 대학과 같은 상위수준의 교육기관에서의 교육에서는 교수자가 전달하는 내용을 수업을 통하여 듣게 되고 학습을 통해 그 내용을 자신의 지식구조에 맞도록 습득해 가는 과정을 거친다. 이 과정에서 학습자는 자신이 학습을 통해 습득한 지식을 자신의 인지구조 (cognitive model)에 맞게 재구성하게 된다. 이러한 지식을 다시 전달할 때 어떤 방법을 쓰면 효과적으로 전달할 수 있을지 고민하게 되고 그 결과, 적절한 방법을 찾아 표현하게 된다. 본 연구는 이러한 과정을 실제적으로 실험해보고 자신이 재구성한 지식을 전달하는데 어떤 방법이 효과적이었는지, 또한 상대방의 지식이 어떻게 표현될 때 받아들여 이해하기 쉬운지를 자료에 대한 상호평가 분석을 통해 그 요소를 분석하였다. 본 연구는 효과적인 지식 전달 방법과 지식습득 평가에 활용할 수 있는 기초연구가 될 것이다.

• 한국초등과학교육학회지:초등과학교육
• /
• 제31권1호
• /
• pp.1-12
• /
• 2012

The purpose of this study was to explore instructional objectives of 'Wise Life' based on Bloom's Revised Taxonomy of Educational Objectives. It was to extend understanding the 7th and the revised Wise Life 2007 as well. The written objectives of two curriculum of Wise Life were divided into two, the 'knowledge' dimension and the 'cognitive process' dimension based on Bloom's Revised Taxonomy of Educational Objectives. Major activity subjects presented in the 7th and the revised Wise Life 2007 were dominantly the basic inquiry activity types. It was found from this research that the 'factual' knowledge of the 'knowledge' dimension and the 'understand' of the 'cognitive process' dimension took a large proportion of the revised Wise Life 2007 objectives. The 'meta-cognitive' knowledge was increased. 'Remember' of the 'cognitive process' dimension was decreased and the high level objectives as 'analyze' and 'create', in the 'cognitive process' dimension was increased from the 7th to the revised curriculum. The 'factual' knowledge, 'conceptual' knowledge and 'metacognitive' knowledge were engaged with 'understand' and the 'procedural' knowledge were engaged with 'apply'. The 'meta- cognitive' were engaged with 'create' is the 'procedural' knowledge in the revised Wise Life 2007. 'Remember' was decreased. 'Create' was increased in the basic inquiry activities. It was analysed in zero percent of 'Observing', 'Investigating and Presenting', and 'Making'.

• Journal of information and communication convergence engineering
• /
• 제15권2호
• /
• pp.79-84
• /
• 2017

In a cognitive radio network (CRN), cognitive radio users (CUs) should be powered by a small battery for their operations. The operations of the CU often include spectrum sensing and data transmission. The spectrum sensing process may help the CU avoid a collision with the primary user (PU) and may save the energy that is wasted in transmitting data when the PU is present. However, in a time-slotted manner, the sensing process consumes energy and reduces the time for transmitting data, which degrades the achieved throughput of the CRN. Subsequently, the sensing process does not always offer an advantage in regards to throughput to the CRN. In this paper, we propose a scheme to find an optimal policy (i.e., perform spectrum sensing before transmitting data or transmit data without the sensing process) for maximizing the achieved throughput of the CRN. In the proposed scheme, the data collection period is considered as the main factor effecting on the optimal policy. Simulation results show the advantages of the optimal policy.

• 한국의류학회지
• /
• 제21권1호
• /
• pp.104-118
• /
• 1997

Consumers experience various cognitive and emotional contents of clothing through postpurchase process. These experiences may affect consumer satisfaction as well as brand attitude toward clothing products. The purpose of this study was to examine the effects of consumption experiences on the brand attitude toward clothing products. The research questions for accomplishing the purpose of this study were to investigate 1) the dimension of consumption experiences, 2) relationships among consumption experience, satisfaction and brand attitude toward clothing. The sample of this study was consisted of 431 females. The survey method, and factor analysis and regression were utilized for this study. The results were as follows; First, it was found out the consumption was composed of two dimensions such as cognitive and emotional experiences. According to the result of factor analysis, the cognitive experiences through consumption process were composed of 6 factors, that is, the suitability, fitness, utility/economy, sewing, deformation, and management. And emotional experiences were composed of 5 factors, that is, unpleasure, activeycomfort, inter-oriented pleasure, extra- oriented pleasure, tension. Also emotional experiences could be composed of two dimensions, that is, positive and negative emotion. The positive emotions were included pleasure and active/comfort. The negative emotions were included unpleasure and tension. Second, the result of path analysis showed that consumption experiences were related to satisfaction and brand attitude. A satisfaction influenced on brand attitude more strongly than others. And sewing, activejcomfort, extra-oriented pleasure out of cognitive and emotional experience factors affected to brand attitude directly. Satisfaction was also influenced by cognitive and emotional factors, and was the important mediator in forming brand attitude toward clothing through consumption experience. Above results imply that consumer experience multidimensional cognitive and emotional aspects of clothing through consumption process. The cognitive and emotional aspects consisting of consumption experiences, satisfaction, and brand attitude are interrelated causally. Therefore, experience related variables could be the antecedents of satisfaction and brand attitude. The satisfaction and positive emotion could be also important factors in brand attitude toward clothing.

• 유통과학연구
• /
• 제22권2호
• /
• pp.71-82
• /
• 2024

Purpose: Despite significant research on decision-making, researchers struggle to comprehend the decision-making process. This paper aims to not only examine the relationship between problem-solving skills, cognitive competency, and decision-making but also develop measurement instruments for cognitive competency and problem-solving skills to better model decision-making. Research Design, Methodology and Approach: A cross-sectional study was conducted by surveying 292 university students in HCM City, Vietnam, via email sent randomly by Google Forms. This study identifies the conceptual framework and tests the hypotheses using a deductive approach. The SPSS program was used to evaluate the scales' reliability, and the SmartPLS program was used to assess the measurement and structural models. Results: The results show that the research model better modelled the relationship between problem-solving skills, cognitive competency, and decision-making. Although thinking ability has no direct impact on decision-making, both creativity and problem-solving skills have a positive impact on decision-making. The mediating role of problem-solving skills is also determined by the positive relationship between cognitive competency and decision-making. Conclusions: This study highlights decision-making efficiency through the cognitive process from low to high levels and provides for policymakers and managers to explain the decision-making process in a variety of sectors, such as distribution chains, marketing, and human resource distribution.

• 한국콘텐츠학회논문지
• /
• 제16권2호
• /
• pp.287-294
• /
• 2016

디자인을 개발하는데 있어 디자인의 계획에서부터 결과물을 도출시키는 전 과정의 디자인행위는 디자이너의 직관적인 관념과 기술적인 능력차이로 이루어지고 있다. 하지만 이러한 작업의 형태가 어떠한 규정된 틀에서 구체적인 방향으로 진행되기보단 개개인의 암묵적 행위 혹은 내재적 직관으로 이루어지고 있음을 디자인 전문가들은 모두가 공감하는 현상이다. 이러한 직관과 경험을 토대로 행해지는 디자인 작업을 합리적이고 과학적인 과정으로 시작하고 결과를 얻는다면 보다 체계적인 디자인작업을 다음단계로 이관 시킬 수 있다. 본 연구는 전문가와 비전문가의 디자인 적용방향을 실험으로 알아보기 위해 주방기구 개발 프로세스의 초기단계인 디자인 스케치과정 내용을 인지과학의 대표적인 질적연구 방법인 프로토콜 분석 방법을 활용하여 디자이너가 어떠한 사고시스템으로 디자인정보처리를 수행하고 작업하는지를 연구하고자 한다. 따라서 이 논문의 범위를 디자인 인지과학의 관련을 이해하는데 가장 기초가 되는 질적 연구방향에서 "주방기구에 대한 초기프로토콜 분석"과 "사고분석에 대한 코드화"에 한정시킬 것이다. 이러한 연구문제를 해결해가는 절차로 선행연구를 고찰하고 인지적인 사고를 체계적인 방법으로 재해석하여 제품의 개발흐름과 교육적 효과를 찾고자 하였다.

• 산업경영시스템학회지
• /
• 제23권61호
• /
• pp.1-11
• /
• 2000

Ergonomic vehicle design is very important for driver's safety and sensibility. Many studies have emphasized the physical factors of human operator and usability of control devices. However, driver's cognitive factors such as the shape of cognitive map have not been well documented. The aim of this research is to find the relationship between the shape of Instrument Pane (IP) in driver's cognitive map and the real vehicle. To do this, Sketch Map Method (SMM), that is an extraction method of cognitive map, was employed to extract the shape of middle-aged driver's cognitive map. In this study, SMM was modified to formulate driver's cognitive map because this process is not being in the existing SMM. Next, correlation was analyzed between individual cognitive map and the shape of real vehicle's IP. The result showed that the position of volume control switch and cigar jack was similar between these but the position of others wasn't.

• 아동학회지
• /
• 제12권2호
• /
• pp.67-77
• /
• 1991

An investigation of the effect of occupational information on vocational cognitive complexity was conducted with 331 male and female adolescents in ninth grade. There were 2 experimental groups and 1 control group. Experimental group I was given only occupational information sheets (written form information) while group II was given occupational information through verbal instruction in addition to the occupational information sheets. A modified form of the cognitive complexity grid originally developed by Bodden (1970) was utilized to collect data on the subjects' vocational cognitive complexity. ANOVA and $Scheff{\acute{e}}$ tests revealed that there were significant differences between experimental group II and the other groups in vocational cognitive complexity. The cognitive complexity level of experimental group I and the control group for the most aspired occupation was significantly lower than for the least aspired occupation. However, the cognitive complexity level of experimental group II for the most aspired occupation was higher than for the least aspired occupation. The results suggest that just giving occupational information to adolescents may not be effective and giving occupational information may be effective only when the method of giving occupational information is active enough to induce adolescents' self-confirming cognitive process.