• Proceedings of the Korean Society for Cognitive Science Conference
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• 2002.05a
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• pp.92-98
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• 2002

복잡한 기능이나 개념을 제한된 공간에 효과적으로 표현하는데 아이콘이 널리 이용된다. 이러한 아이콘 개발이 디자이너의 미적인 기준이나, 시스템에서 일률적으로 사용에 의해 결정되는 경향이 있다. 본 연구는 동일한 정보를 포함하는 아이콘이나 레이블같이 서로 다른 표상들이 그 표상 방식의 유용성 측면에서 다른 결과를 보일 수 있으며, 기능의 표상 방식이 다르면, 아이콘이나 레이블에 대한 이해가 서로 다른 인지 처리 체계를 거친다는 기본 가정에 근거를 두고 진행되었다. 구체적으로는 아이콘을 기존에 형성된 표상 방식들 가운데서 인지적 특성을 고려한 표상들로 분류한 기준을 이용하여, 실제 컴퓨터 사용자 환경에서 통용되고 있는 아이콘들을 수집, 분류하고, 각각의 표상 방식에 따른 아이콘의 유용성을 알아보고자 각 아이콘에 대응되는 레이블과의 수행을 비교하였다. 결과에 따르면, 새로운 기능을 익혀야하는 초기에는 아이콘보다 레이블과 같은 텍스트가 더욱 효과적이지만, 익숙해진 후 그 수행이 비슷해짐을 확인했다. 그러나 임의적 표상방식으로 디자인된 아이콘은 레이블보다 더 부정확하고 느린 수행을 지속적으로 나타냈고, 기능의 세 가지 표상방식에 따라서 아이콘에 대한 수행이 서로 다른 패턴을 보였다. 이는 아이콘과 같은 컴퓨터 사용자 인터페이스의 설계와 사용 단계에서, 표현하고자 하는 기능과 사용자의 인지적 속성인 표상 방식을 충분히 고려해야 한다는 것을 보여준다.

• Journal of Industrial Convergence
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• v.21 no.12
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• pp.101-111
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• 2023

This study conducted systematic review and meta-analysis to analyze the effectiveness of a dual-task for cognitive function in patients with MCI in Korea. A search was conducted using eight databases, and the search terms were MCI, cognition, and dual task. This study includes RCT and nonRCT published from January 2013 to July 2023. A total of 682 studies were searched, and 8 studies that fulfilled the inclusion and exclusion criteria were finally analyzed. Methodological quality was assessed with the RoB, RoBANS. The meta-analysis used CMA 4.0 ver. As a result of the analysis, the overall effect size of the dual task was medium effect size. The effect size according to the outcome variables was large for orientation and executive function, and medium effect size for global cognitive function, visuospatial function, memory, and attention. As a result of analysis according to the intervention period, the effect was greater when applied for 4 to 8 weeks, and the effect size was larger when applied for 24 to 30 sessions. This study presented clinical evidence on the effectiveness and application method of a dual-task applied to improve cognitive function in patients with MCI.

• 한국노년학
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• v.40 no.3
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• pp.413-428
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• 2020

The purpose of this study was to analyze the effects of digital literacy and the frequency of contact with children or grandchildren via ICT on cognitive functions of 8,942 adults over age 65 who responded to the 2017 National Survey of Older Koreans, using multiple regression analysis. We found that digital literacy was the most significant factor on cognitive functions of the elderly. Also, the frequency of contact with grandchildren via ICT was a positive factor for cognitive function and had a positive correlation with digital literacy. Based on this results, the importance of digital literacy education and intergenerational communication via ICT were discussed.

• 한국노년학
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• v.39 no.4
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• pp.801-824
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• 2019

As becoming an aging society, there is a rising interest on dementia. But Dementia prevention program, executed at the national level, is in insufficient state. In this study, to design and diffuse Dementia prevention program, this study conduct Cognition improvement program and evaluate cognitive function in aspects of Discrimination, Organization, Thinking, Memorizing, and Concentration capacity. So that this study try to investigate how this Cognition improvement program will affect in detail to cognitive function in senior people. This study designed Silver Cognition program for 5 aspects of cognitive function; Discrimination, Organization, Thinking, and Concentration capacity. And this studyrecruited experimental group with control group, and conducted the program to them for 3 months. At the start and the end of the program, this study evaluated their MMSE-DS score, Geriatric depression scale, Quality of life score, and cognitive function test score by survey. Finally, this study compared and analyzed these first and second score to find the effects of this program to cognitive function. As the results compared between first and second score of MMSE-DS test, Geriatric depression scale, Quality of life scale, and cognitive function test, Silver Cognition program has a significant effects to improve cognitive function, MMSE-DS score and Geriatric depression scale. As the results of the test on cognitive function in 5 aspects, cognitive function is more improved in the order of Memorizing, Thinking, Concentration, Discrimination, and Organization capacity. After the Silver Cognition program, Memorizing and Thinking capacity have most improvement. But aging of brain function is faster in these two capacity, so if more concentrated education is conducted for these two capacity, then it will bring better effects for prevention of dementia.

• Journal of the Korea Academia-Industrial cooperation Society
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• v.21 no.9
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• pp.358-372
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• 2020

This study examined the effect of cognitive reserve on the cognitive function in adults. In addition, this study investigated the direct and indirect effects of factors, such as subjective memory decline, depression, and quality of life on the cognitive function. The participants consisted of 253 adults who were 40 to 80 years of age. The assessment tools included the cognitive function scale, depression scale, quality of life scale, subjective memory decline, and cognitive reserve scale. The data results were analyzed using SPSS 25.0, and PROCESS macro for SPSS Version 3.3 and bootstrapping were used. The results of multiple mediating of the cognitive reserve and cognitive function in adults did not have a mediating effect in depression and subjective memory decline, and the quality of life showed a complete mediating effect in the relationship between the cognitive reserve and subjective cognitive function. Based on the results of this study, adults must accumulate cognitive reserve continuously through various activities and continuous training so that the cognitive function can lead to a positive direction. Nevertheless, more studies on cognitive reserve and cognitive function in healthy adults are needed.

• Therapeutic Science for Rehabilitation
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• v.12 no.3
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• pp.61-77
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• 2023

Objective : This study analyzed the correlation between cognitive function and oral health-related quality of life (OHQoL). Methods : Demographic and clinical characteristics were extracted and utilized for subjects aged 45 years or older who participated in the 8th Korean Longitudinal Study on Aging in 2020. The dependent variable was the Geriatric Oral Health Assessment Index, and the independent variable was the level of cognitive function classified by the Mini-Mental State Examination scores. The analysis method used inverse probability of treatment weighting (IPTW). Then, the association between cognitive function and OHQoL was analyzed by multiple regression analysis. Results : Among the participants, 4,367 (71.40%) had normal cognition, 1,155 (18.89%) had moderate cognitive impairment, and 594 (9.71%) had severe cognitive impairment. As a result of analysis by applying IPTW, there was a negative correlation between the cognitive function group and OHQoL (normal vs. moderate: β = -2.534, p < .0001; normal vs. severe: β = -2.452, p < .0001). Conclusion : After propensity score matching, mild cognitive impairment showed a more negative association than severe cognitive impairment. Therefore, patients with cognitive impairment require oral health management education to improve OHQoL regardless of the level of cognitive impairment.

• 한국노년학
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• v.39 no.2
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• pp.389-404
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• 2019

The present study aims to examine the relationship between self-reported sensory impairment and cognitive function among older adults in Korea. Drawn from the 2017 Survey of Living Conditions and Welfare Needs Korean Older Persons, a total of 10,082 adults aged 65 and over were included in analyses. Results from hierarchial multiple regression analysis show that those who reported greater subjective discomfort about vision, hearing, and oral function were more likely to have poor cognitive function. Results from hierarchial logistic regression analysis show. Results from logistic regression analysis show that having hearing and oral discomfort increased the a risk for dementia. Findings suggest that it is necessary to manage sensory function of the elderly at the government level and to develop self-evaluation tools to monitor changes in sensory function for older adults. Future research should target finding effective ways to improve health of older adults.

• Journal of Nutrition and Health
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• v.19 no.4
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• pp.233-245
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• 1986

The relationships between nutritional status and psychological functionings in elementart school children were studied using dietary survey, physical and biochemical examinations and psychological measures of both cognitive and personality traits. The results obtained are as follows: (1) Performance of Y school (higher economic class) children on the tests of cognitive functionings, was generally higher than that of B school(lower economic class) children. The means of all anthropornetric measurements were also higher in Y than B school children. (2) Nutrient intakes were found to be positvely correlated with the psychological funtionings of the children to the varing degrees depending on the variables tested. However, the correlations between the physical measures and psychological functionings were low. (3) Most nutrient variables showed positive correlations with body size. (4) The functionings of both cognitive and personality traits are of utmost importance reflecting the positive effects of balanced diet on behavior.

• Journal of the Korea Convergence Society
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• v.12 no.7
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• pp.19-29
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• 2021

High-performing athletes possess the ability to read the game, known as the "sports brain". However, a cognitive battery to measure such sports brain has not been developed yet. The purpose of the study, thus, is to develop a computerized cognitive test battery to measure athletes' cognitive function. Based on a systematic review, information processing speed, execution function, and spatial ability were selected as sports-related cognitive functions. Simple and choice response times test, trail-making test, Flanker test, and mental rotation task were developed. After providing manual and practice trials, main tests were executed and all primary variables were statistically processed and automatically saved. The test battery is expected to aid in the discovery and recruitment of athletes in the future after verifying the validity and reliability of this battery.

• Journal of the Korean Applied Science and Technology
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• v.40 no.3
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• pp.402-411
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• 2023

The purpose of this study was to investigate the effects of a cognitive enhancement program combined Silbot on cognitive function, depression, and dementia prevention behavior in the elderly complaining of subjective memory decline. The subjects were 170 elderly people living in Seongnam-si, Gyeonggi-do, and the study was performed at a welfare center. A total of 20 sessions program using Silbot and physical activity was developed and applied, and were evaluated using the Korean version of Montreal Cognitive Assessment (K-MoCA), Geriatric depression Scale(GDS) , and Dementia Prevention Behavior before and after intervention. As a result of the study, the cognitive enhancement program combined Silbot showed statistically significant changes in cognitive function (t=-4.49, p<.001) and depression (t=2.58, p=.023) in the elderly. Therefore, it is expected that the cognitive enhancement program using Silbot will be a useful program that can enhance the cognitive function of the elderly and reduce depression.