• 정보관리학회지
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• 제37권3호
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• pp.177-202
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• 2020

In this study the author examines the health information seeking behavior of older adults from the perspective of cognitive load. Using a qualitative method, based on ground theory, data were collected using in-depth interviews. Twenty-eight participants were participating older adults living in G community city, South Korea who experienced seeking health information. Interview transcripts were analyzed using a qualitative thematic coding framework. Three themes describing older adults' health information seeking behaviors were focused: intrinsic, extraneous, and germane cognitive load. The findings are geared towards the context of older adults' information seeking to support an understanding of successful information seeking behaviors in this population and to contribute to their health and well-being. The intent is to present information on current research in the field of Library and Information Science and to demonstrate how a cognitive load approach can be used to address the problems of older adults' health information seeking behaviors.

• 아동학회지
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• 제12권2호
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• pp.67-77
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• 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.

• 한국문헌정보학회지
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• 제47권1호
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• pp.125-147
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• 2013

본 연구는 대학생 250명을 대상으로 장독립-장의존 인지양식이 정보탐색행위에 미치는 영향을 분석하였다. 장독립-장의존 인지양식은 집단잠입도형검사(GEFT: Group Embedded Figure Test)로 검사하였으며, 정보탐색행위는 정보탐색 수행평가와 설문조사의 방법으로 조사하였다. 분석 결과, 장독립-장의존 인지양식은 본 연구에서 설정한 항목들 중에서 한 개의 항목을 제외하고는 전부 정보탐색 수행평가의 항목에 영향을 미친 것으로 분석되었다. 따라서 인지과정 도중에 작용하는 인지적 특성인 인지양식은 정보를 탐색하는 실제적인 행위에 영향을 미쳤다고 할 수 있다. 그리고 장독립-장의존 인지양식은 정보탐색행위의 영역적인 면에서는 탐색결과와 일반적인 정보탐색행위를 제외하고, 탐색과정에만 영향을 미쳤다. 그러므로 정보탐색행위의 탐색 과정적 영역에서는 인지양식의 연구가 효율적이라고 할 수 있다.

• 인지과학
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• 제17권3호
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• pp.231-253
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• 2006

시각형과 언어형이라는 인지양식이 멀티미디어 학습에 영향을 미치는지 알아보기 위해 언어정보와 그림정보의 제시순서를 달리해서 실험을 실시하였다. 시각형에서는 그림정보를 먼저 제시한 경우에 더 잘 학습하였으나, 언어형은 언어정보를 먼저 제시한 경우에 수행이 좋았다. 이 결과는 인지 양식에 따라 정보의 효과적인 제시 순서가 달라질 수 있다는 것을 보여주는 것으로, 학습자의 인지양식에 따라 학습교재의 인지 부하가 달라질 수 있다는 것을 시사하였다.

• 제어로봇시스템학회논문지
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• 제15권1호
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• pp.111-119
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• 2009

For daily life interaction with human, robots need the capability of encoding and storing cognitive information and retrieving it contextually. In this paper, spatiotemporal grounding of cognitive information for a language based cognitive system is presented. The cognitive information of the event occurred at a robot is described with a sentence, stored in a memory, and retrieved contextually. Each sentence is parsed, discriminated with the functional type of it, and analyzed with argument structure for connecting to cognitive information. With the proposed grounding, the cognitive information is encoded to sentence form and stored in sentence memory with object descriptor. Sentences are retrieved for answering questions of human by searching temporal information from the sentence memory and doing spatial reasoning in schematic imagery. An experiment shows the feasibility and efficiency of the spatiotemporal grounding for advanced service robot.

• 대한인간공학회지
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• 제14권1호
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• pp.25-35
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• 1995

For information processing tasks, it is an important cognitive skill to manipulate and store information, which is known as information intake. One of the tasks which greatly involve this skill would be a spreadsheet calculation task. In this study, a spreadsheet calculation task is analyzed by the cognitive task analysis based on the cognitive factors having been usef for a model of human information processing. By the results of the cognitive task analysis, the spreadsheet calculation tasks to be used in the experiments are designed and the testbattery of cognitive abilities assessment (CCAB ; complex cognitive asssessment battery) are selected. Then, the features of cognitive demands and a human performance model of the spreadsheet calculation task are suggested by means of correlation analysis, principal component factor analysis, and regression analysis of the results of the experiments on task performances and the assessment of cognitive abilities. Also, the application of the results of the study to job placement and further research issues are described.

• KSII Transactions on Internet and Information Systems (TIIS)
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• 제10권12호
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• pp.5249-5267
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• 2016

Cognitive radio is an efficient technique to improve spectrum efficiency and relieve the pressure of spectrum resources. In this paper, we investigate the spectrum sensing period in cooperative relay cognitive radio networks; analyze the relationship between the available capacity and the signal-to-noise ratio of the received signal of second users, the target probability of detection and the active probability of primary users. Finally, we derive the closed form expression of the optimal spectrum sensing period in terms of maximum throughput. We simulate the probability of false alarm and available capacity of cognitive radio networks and compare optimal spectrum sensing period scheme with fixed sensing period one in these performance. Simulation results show that the optimal sensing period makes the cognitive networks achieve the higher throughput and better spectrum sensing performance than the fixed sensing period does. Cooperative relay cognitive radio networks with optimal spectrum sensing period can achieve the high capacity and steady probability of false alarm in different target probability of detection. It provides a valuable reference for choosing the optimal spectrum sensing period in cooperative relay cognitive radio networks.

• 한국경영정보학회:학술대회논문집
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• 한국경영정보학회 2008년도 춘계학술대회
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• pp.338-343
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• 2008

Government intervention, industry cooperation, new vendors, and foreign competition are all factors that exert a powerful influence on the information technology, marketplace, and on the individual IS organization. When these influences need to change an organization, it is likely the culture or identity of the organization will be targeted for change. Because an organization is also composed of cognitive frameworks, there is an implication that the existing cognitive structures are in jeopardy. Thus, the cognitive component is important in how all members of organizations react and respond to change. This paper defines cognitive process and its related research history, introduces organizational change matters, tries to solve conflicts in organizational changes, and applies this topic to the information systems field.

• Asia pacific journal of information systems
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• 제26권2호
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• pp.290-298
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• 2016

Human cognition and decision-making related to information systems (IS) is a major area of interest in IS research. Among these areas, cognitive bias rooted in behavioral economics is gaining considerable attention from researchers. In the present study, we identify the role of cognitive biases and discuss how they shape the information security behavior. We also seek research opportunities to provide directions and implications for future research.

• 한국축산식품학회지
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• 제42권6호
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• pp.981-995
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• 2022

Cognitive dysfunction is a common symptom of neurodegenerative diseases, such as Alzheimer's disease, Parkinson's disease, and Huntington's disease, and is known to be caused by the structural and functional loss of neurons. Many natural agents that can improve cognitive function have been developed and assessed for efficacy using various cognitive deficit animal models. As the gut environment is known to be closely connected to brain function, probiotics are attracting attention as an effective treatment target that can prevent and mitigate cognitive deficits as a result of neurodegenerative diseases. Thus, the objective of this review is to provide useful information about the types and characteristics of cognitive deficit animal models, which can be used to evaluate the anti-cognitive effects of probiotics. In addition, this work reviewed recent studies describing the effects and treatment conditions of probiotics on cognitive deficit animal models. Collectively, this review shows the potential of probiotics as edible natural agents that can mitigate cognitive impairment. It also provides useful information for the design of probiotic treatments for cognitive deficit patients in future clinical studies.