• Journal of Digital Convergence
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• v.18 no.12
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• pp.343-351
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• 2020

The present study investigated the related variables of cognitive function, subjective cognitive decline and cognitive training effects. The cognitive training was composed of mete-cognitive education and cognitive task performing. Twenty older adults attended for 14 weeks and were tested before and after the training. Results show that their cognitive level was related with age, self-esteem and personality traits. And subjective cognitive decline was related depression, anxiety, personality traits, self-efficacy, self-esteem and subjective age, but it does not reflect objective cognitive impairments. Their cognitive test scores were enhanced after training in MMSE, memory and executive function, and enhanced scores were related with age, subjective cognitive decline, anxiety, self-efficacy, self-esteem, subjective age and personality traits. Findings suggest one's personality and psychological state need to be considered for the effects of cognitive training.

• The Journal of the Korea Contents Association
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• v.20 no.5
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• pp.181-192
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• 2020

The present study comprehensively explored the experiences of cognitive decline and of overcoming such decline in climacteric women to gain a deeper understanding of these women's cognitive health issues. Fourteen climacteric women were recruited, and data were collected through in-depth qualitative interviews. The collected data were analyzed using phenomenological methods suggested by Colliazzi. The quality of the present study was further improved according to the evaluative criteria for rigor suggested by Lincoln and Guba. The interviews resulted in 210 statements, 43 significant statements, 17 themes, and 5 theme clusters. The theme clusters were "loss of memory and distraction in everyday life," "struggle to overcome," "greeting an inevitable guest," "conforming to life changes," and "dreams of the past and future plans." As they experienced menopause, the participating women experienced decline in memory and concentration, as well as problems communicating. Climacteric women experienced cognitive decline during menopause and made significant efforts to overcome it; therefore, effective programs that promote cognitive function and adaptation should be provided for climacteric women.

• Journal of Digital Convergence
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• v.17 no.2
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• pp.283-292
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• 2019

The loss of semantic knowledge and impairments in semantic associations by semantic category is gaining increasing attention, as indicators of early-stage cognitive decline. As such, we assigned semantic association task (SAT) to normal elderly (NE) and those with subjective memory impairment (SMI) or mild cognitive impairment (MCI) to examine their performance by semantic subcategories and the differences in error patterns. We found a significant difference in the number of correct response and reaction time under the SAT categories among the three groups, with the highest performance observed in 'function' and the lowest performance in 'superordinate' and 'part/whole'. Moreover, the error frequency was the lowest in NE, followed by those with SMI and MCI, with the latter two groups showing a significant increase in no-response. Our findings demonstrate the varying extent and process of impairments in the semantic network by category over different stages of cognitive decline. Thus, we proposed SAT performance as an indicator to detect and follow-up on cognitive decline in elderly with cognitive disorder.

• 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.

• Proceedings of The KACE
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• 2018.08a
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• pp.85-87
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• 2018

고령 사회의 급격한 확대로 인해 스마트 기기를 잘 다루는 스마트 시니어들의 문화향유가 급증하고 있다. 시니어 세대는 인지 및 운동능력이 급격히 감퇴하는 시기로, 콘텐츠를 활용한 원활한 문화향유를 위해서는 감퇴하는 능력에 대한 개인의 능력을 파악하여 콘텐츠 제작자들에게 알맞은 가이드라인을 제공해줄 필요가 있다. 본 연구는 시니어의 인지 및 운동능력 측정을 통하여 웹콘텐츠에 사용되는 UI/UX 컴포넌트를 매핑하고, 컴퓨터 과학에 전문적인 지식이 없는 개발자 또는 콘텐츠 제작자들에게 시니어를 잘 이해할 수 있도록 하는 시각화 방법을 제안한다.

• 건강소식
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• v.29 no.4 s.317
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• pp.6-9
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• 2005

치매라는 말은 Dement라는 라틴어에서 유래된 것으로써 '정상적인 마음과는 거리가 멀어진것', '정신이 없어진 것'이라는 의미를 지니고 있다. 치매는 나이가 들어감에 따라 정상적으로 발달한 뇌가 후천적인 외상이나 질병 등 외부적인 요인에 의해 손상되거나 파괴되어 언어ㆍ학습ㆍ지능 등에 대한 전반적인 인지기능과 고등정신기능이 비정상적으로 감퇴되는 복합적인 임상증후군을 포괄적으로 이르는 것을 말한다.

• Korean Journal of Biological Psychiatry
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• v.15 no.1
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• pp.29-34
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• 2008

Objectives : This study aimed to test potential modifying effects of education on the association between apolipoprotein E ${\varepsilon}4$ (Apo E4) and cognitive decline. Methods : A community cohort(N=683) aged 65 or over completed the Korean version of Mini-Mental State Examination(MMSE-K) at baseline and two years later(1999-2001). Apo E polymorphisms were genotyped, and classified into that with or without Apo E4. Educational levels were categorized into people with or without education. Covariates included demographic(age, gender), life style(smoking, alcohol drinking), clinical (depression, sleep disorder, vascular risk factors) characteristics. Results : The association between Apo E4 and cognitive decline was significant only in the old persons with no education. The interaction term between education and Apo E4 on cognitive decline was significant(p=0.040). Conclusion : Elders with no education might be more vulnerable to the impact of Apo E4 on cognitive decline, which suggests gene-environment interaction.

• Journal of the Korea Academia-Industrial cooperation Society
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• v.21 no.5
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• pp.150-166
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• 2020

Based on the theory of cognitive reserve, we undertook this study to develop a cognitive function training program for woman in menopausal transition with complaints of declining in cognitive function. The program was established by applying the analysis, design, and development stages of the network-based instructional system designed by Jung. The cognitive function training program developed by us is an was an 8-week program composed of cognitive and video training using a mobile application. The program consists of 24 sessions, each with 20-30 minutes of duration, to be completed 3 sessions per week. The contents of the cognitive function training comprise of memory, attention, language function, and scenario-based problem-solving for executive functions, all of which are cognitive areas found to be the most vulnerable for menopausal women. The educational contents were developed for eight subject areas, one subject area per week, including the definition of menopause, its causes and symptoms, menopause and brain function, etc. During the pilot test, the cognitive function training program was applied to 10 menopausal women who complained of cognitive function decline. The results indicated that, after eight weeks of training, the overall cognitive function of participants increased, revealing statistically significant differences (t=-3.04, p=.014) after the program was completed. The mobile app-based cognitive function training program might not only improve patients' memory functions but also potentially reduce the incidence of dementia.

• Journal of Convergence for Information Technology
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• v.9 no.5
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• pp.210-216
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• 2019

The purpose of this study is to investigate the effect of the multimodal cognitive intervention focusing on instrumental daily life on the cognitive function, depression and quality of life of the elderly with high-risk of dementia. This study was conducted on 24 elderly people with high-risk of dementia who participated in cognitive rehabilitation program from March to June, 2018 in Chungbuk A region. The intervention was applied to cognitive training and creative activities related to instrumental daily life. MMSE-DS, Subjective Memory Complaints Questionnaire, Short Geriatric Depression Scale-Korean version and Geriatric quality of life - Dementia were performed before and after the intervention. We confirmed that the subjects showed significant improvement in Subjective Memory Complaints and Quality of Life, but showed no significant changes in cognitive function and depression after the intervention program. Through this study, it was confirmed that this program which can affect the real life of the elderly can be usefully applied in the community. In the future, it will be necessary to develop a program that utilizes more diverse instrumental activities of daily living.

• Sleep Medicine and Psychophysiology
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• v.4 no.1
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• pp.29-38
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• 1997

Dementia is defined as a syndrome which is characterized by various impairments in cognitive functions, especially memory function. Most of the diagnostic criteria for dementia include memory impairment as on essential feature. Memory decline can be present as a consequence of the aging process. But it does not cause significant distress or impairment in social and occupational functionings while dementiadoes. Depression may also be associated with memory impairment. However, unlike dementia, depression dose not cause decrease in delayed verbal learning and recognition memory. In dementia, different features of memory impairment may be present depending on the involved area. Memory impairment in cortical dementia is affected by the disturbance of encoding of information and memory consolidation, while memory imparnene in subcortical denentiy is affected by the disturbance of retrieval in subcortical dementia.