• Korean Journal of Occupational Therapy
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• v.26 no.4
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• pp.13-26
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• 2018

Objective : The aim of the study was to investigate the application of nonpharmacological cognitive interventions in patients with dementia. Methods : We searched published studies in KISS, PubMed, and Sciencedirect databases from January 2013 to December 2017. The main keywords used were "Dementia" AND "Cognitive stimulation OR Cognitive rehabilitation OR Cognitive training" and a total of ten studies were selected for analysis from 753 searched articles. Results : Seven of the ten selected studies showed significant improvements in cognitive function after intervention, whereas three studies showed no improvement in cognitive function; however, activation of brain waves, improvement in the relationship between care givers and patients, improvement in the quality of life of care givers, and improvements in visual motor skills were shown. Mini-Mental State Examination(MMSE) was used as the assessment tool for identifying the effects of the cognitive function improvement, and in four studies the quality of life of dementia patients was measured as an intervention effect. The main subject of the cognitive intervention is patients with mild to moderate dementia. Conclusion : The results of this study can be used as a basis for the selection of intervention methods, as well as their duration and assessment, according to the characteristics of dementia patients.

• The Journal of Korean Association of Computer Education
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• v.22 no.6
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• pp.11-18
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• 2019

Software education is required from elementary schools to prepare students for the fourth industrial revolution, which aims to improve algorithmic thinking. In general, teaching is divided into two stages: using a flowchart to design algorithms and implementing them through programming. However, converting a flowchart into code and checking the results in an educational programming tool is time consuming and requires additional programming activities. This study proposes a tangible coding tool that enables elementary students to convert algorithms designed at the unplugged activity into educational programming tool codes. This tool was developed in order for students to design algorithms at the level of assembling paper blocks and input them into a programming tool by taking a picture. Sixth graders were participated in this activity to evaluate its usability.

• Proceedings of the Korean Institute of Information and Commucation Sciences Conference
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• 2013.10a
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• pp.275-278
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• 2013

Almost teachers have some basic questions about the effective teaching and learning. The purpose of this study is to develop an alternative tool to observe and analyze an instruction based on the learning theories providing the theoretical rationalities for learners to study not only in daily their life but also in their class and to apply it as an example. This study showed some suggestions analyzing an instruction theoretically through out some filters based on learning theories. Recently various learning theories have been studied and accumulated. This study developed an alternative tool to observe and analyze an instruction based on the Behaviorism, the Cognitivism and the Constructivism in the middle of these learning theories and it was applied to observe and analyze a actual class of the informatics subject. The expectation is for teachers to reflect or improve their classes using the alternative tool.

• Journal of the Korean Applied Science and Technology
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• v.38 no.3
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• pp.786-800
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• 2021

The subjects of this study were 463 people aged 65 and older in the senior welfare center in Seoul and Gyeonggi. The purpose of the study is to analyze the differences between physical fitness factors and cognitive functions, activities of daily living, instrumental activities of daily living, and psychological variables in the participation of the elderly in physical activities. Data ware analyzed by frequency analysis, reliability analysis, independent sample t-test and one-way ANOVA, and Pearson's correlation analysis, with SPSS 25.0 statistics program. The results of this study are as follows. First, there are statistically significant differences in physical fitness, cognitive function, activities of daily living, instrumental activities of daily living, and psychological factors such as depression and quality of life, depending on whether the elderly participate in physical activity. There were statistically significant differences in physical fitness, cognitive function, ADL, IADL, depression and quality of life, depending on the frequency of participation of older people in physical activity. A statistically significant difference in physical fitness appeared depending on the participation time of the elderly who participated in physical activity. Second, a study of the correlation between physical fitness and cognitive function, ADL, IADL, depression, and quality of life revealed a correlation for most factors. Based on these research results, it is necessary to develop a systematic arbitration strategy including physical activity for the successful aging of the elderly and the independent life of old age.

• Journal of Engineering Education Research
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• v.11 no.1
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• pp.5-14
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• 2008

The purpose of this study is to analyze how a well-structured cognitive reflection journal can affect a learner's metacognition and learning achievement in the area of Engineering Education. The objects of this study were 143 students in total (experimental group: 52, control group: 91) who are taking the 'Fundamental Semiconductor Engineering' course in the Engineering Department at D college in the metropolitan area. For his particular study, we undertook three steps as follows. First, we verified that the two groups of students were equal in areas of metacognition and learning achievement. Second, the experimental group was asked to keep writing the well-structured reflection journal for four weeks and the control group was not. Third, we evaluated the metacognition and learning achievement. This study used a questionnaire to measure metacognition by Sperling(2002) in a Korean translation as well as a well-structured cognitive reflection journal. As a result, we found that the well-structured cognitive reflection journal affects learners positively in the sense of metacognition ability, continuity as well as learning achievement.

• School Mathematics
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• v.6 no.2
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• pp.153-179
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• 2004

In this article, we classify the middleschool students' mathematical modeling activities with three types as following: perceptive activity, cognitive activity, and metacognitive activity. And we research model development process through the interaction of perceptive, cognitive, and metacognitive activities. We report three results of our case study as following: First, students understanded the context of the modeling tasks on the base of their own experience and constructed the tasks with perceptive activity operating tool. Second, students developed various models with reorganizing cognitive activity which think and reason about perceptive activity-based model. Third, students were able to create generalizable and reusable models through metacognitive activities. This study revealed that the possible contribution of modeling activity as following. Students are able to understand abstractive mathematical knowledge as connecting between realistic activity and abstractive activity.

• Journal of Korean Library and Information Science Society
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• v.47 no.2
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• pp.329-358
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• 2016

The purpose of this study is to develop a test tool that can be measured in various aspects for the reading attitudes of children. For that it was set the configuration based on the preceding reading attitude survey and models and tacit knowledge of attitude toward reading and wrote the questions for reading attitudes. It conducted a primary and secondary test for elementary school students in grades 4-6 to verify the validity and reliability of measurement tools. 8 factors of the reading attitudes measurement tool were extracted through exploratory factor analysis and it described 66.29% of total variable. the r-value for inter-item consistency about reading attitudes were above 0.4 on all questions. The Cronbach ${\alpha}$-value of reliability coefficient about reading attitudes measurement tool was 0.950. Therefore Reading attitude test tool have reading usefulness, reading efficacy, leisure, stiumulation, flow, expression, study, assertiveness as sub factors of reading attitude has been shown that it can serve as a useful tool for measuring various aspects of the reading attitude for children.

• Journal of Korean Elementary Science Education
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• v.33 no.1
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• pp.44-56
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• 2014

이 연구의 목적은 인지적 전략인, 갈등도(Oh, 2011)를 기반으로 학생들이 명시적으로 과학의 본성(NOS)의 교육을 돕기 위하여 과학의 본성요소뿐만 아니라 과학의 역사를 담은 NOS Flow Map을 개발 제안하는 것이다. 예비적으로 과학의 본성의 교육을 위해 제안한 NOS Flow Map을 사용에 대한 이해를 탐색하기 위하여, 자신들의 NOS 이해를 강화하기 위해 우리가 제안한 NOS Flow Map의 유용성에 대한 예비 초등교사들의 인식를 조사하였다. 과학의 본성에 대한 중요한 관점들은 Kuhn의 과학철학과 역사가 아주 잘 일치된다. 즉 Kuhn의 과학혁명의 예로 가장 중요한 Copernicus의 혁명과정이 과학의 본성 중요한 요소들과 잘 일치됨을 보여준다. 따라서 이 연구에서 인지갈등을 통한 NOS 흐름도는 과학의 소양교육을 강화하는데 명시적이고 반성적인 도구이며 유망한 방법이라고 조심스럽게 제안한다.

• The Journal of the Korea Contents Association
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• v.13 no.2
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• pp.370-377
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• 2013

Traumatic brain injury(TBI) is a brain damage caused by an external physical force. TBI patients have disturbances of functioning including attention, memory, reasoning,, executive function, and pragmatic language. The aim of this study was to develop the cognitive-pragmatic language ability assessment protocol for traumatic brain injury(CAPTBI) and to evaluate reliability and validity. This study was also conducted to investigate domains that contributed to differentiate between the normal and TBI groups. The CAPTBI data were obtained from 226 normal adults and 62 TBI patients(mean age=$43.95{\pm}11.92$, $46.37{\pm}11.87$, M:F=110:116, 48:14). The CAPTBI had high item internal consistency, test-retest reliability, construct validity, and concurrent validity. The normal group performed significantly better than the TBI group in all domains of the CAPTBI and the separate scores for 9 domains. All 9 domains were found to be significant variables to discriminate between the two groups. The most powerful variable was executive function followed by memory, organization, pragmatic language, problem-solving, attention, orientation, reasoning, and visuoperception in order. The CAPTBI could discriminate between the two groups accurately by 95.5%. This result demonstrated that 97.3% of normal adults and 88.7% of TBI patients could be discriminated by CAPTBI. In conclusion, The CAPTBI is appropriate for evaluating and identifying cognitive-pragmatic language disorders in TBI patients.

• Korean Journal of Cognitive Science
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• v.31 no.1
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• pp.1-23
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• 2020

This paper introduces SNUDM, an analysis program for Ratcliff's diffusion model, which has been one of the most important models in cognitive psychology over the past 35 years and which has come to occupy an important place in cognitive neuroscience in recent years. The analysis tool is designed with the basic principles of easy comprehension and simplicity in use. A diffusion process was programmed as the limit of a simple random walk in a manner resembling Ratcliff & Tuerlinckx(2002). The response time distribution of the model was constructed by simulating the time taken by a random walk until it reaches a threshold with small steps. The optimal parameter values in the model are found to be the smallest value of the chi-square values obtained by comparing the resulting distribution and the experimental data using Simplex method. For simplicity and ease of use, the input file used here is created as a file containing the quantile of the reaction time, the trials and other information. The number of participants and the number of conditions required for such work programs are given in a way that answers the question. Using this analysis tool, the experimental data of Ratcliff, Gomez, & McKoon(2004) were analyzed. We found the very similar pattern of parameter values to Ratcliff et al.(2004) found. When comparing DMAT, fast-dm and SNUDM with the generated data, we found that when the number of trials is small, SNUDM estimates the boundary parameter to a value similar to fast-dm and less than the DMAT. In addition, when the number of trials was large, it was confirmed that all three tools estimate parameters similarly.