• Korean Journal of Cognitive Science
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• v.29 no.1
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• pp.1-16
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• 2018

In this study, we investigated age differences of preference and trust ratings when the appearance of an artificial intelligent speaker resembles a human face. The appearance of the artificial intelligent speaker was presented in seven levels from robot face to human face. In addition, face stimuli were divided into gender (male and female) and age (20s / 60s). Participants evaluated the reliability and likability of each face stimulus on a 7-point scale. The results show that younger adults tend to prefer the face that was halfway between the robot and the human face, while older adults evaluated that the perceived reliability and likability were higher when the stimuli resembled the human face. When asked to choose the most preferred of the four face categories, all participants chose a younger face. However, with additional conditions including emoticon face and empty condition, older adults still preferred human face, while younger adults preferred emoticon face and empty condition. Taken together, older adults are more receptive to human faces than robotic faces in the context of artificial intelligence speakers. Because artificial intelligent speakers can play an important role in the elderly living alone, the present study will be a good reference in the design and development of artificial intelligent speakers for the elderly users.

• Journal of The Korean Society of Integrative Medicine
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• v.12 no.2
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• pp.111-119
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• 2024

Purpose : This study aimed to demonstrate the effects of visiting cognitive activities using brain training on cognition, subjective memory complaints and depression among elderly participants residing in community living in Gwangmyeong city. Methods : Over a 14-month period (October 2022 to December 2023), four brain training instructors visited the homes of older adults and conducted the intervention using a brain training kit. The participants included 32 elderly individuals aged 65 years and older, who were living in Gwangmyeong city. The assessments were conducted by an occupational therapist, a nurse and a social worker at the Gwangmyeong dementia relief center. These assessments included the following the subjective memory complaints questionnaire (SMCQ), short geriatric depression scale-Korean (SGDS-K), a cognitive impairment screening test (CIST), the consortium to establish a registry for Alzheimer's disease-Korean (CERAD-K). The participants were divided into three groups (A: 20-30 points, B: 10-19 points, C: 1-9 points) based on the CIST score. For data analysis, descriptive statistics and wilcoxon signed-rank test were performed using SPSS 24.0, and the statistical level was at a=.05. Results : The results of the intervention showed that the SMCQ score of group A improved significantly (p<.05), the CIST score of group B also improved significantly (p<.05). However, the SGDS-K score of group C improved, but did not demonstrate statistical significance (p=.080). Conclusion : The visiting cognitive activities using brain training produced significant effects on cognition, depression, and subjective memory disorders, depending on the cognitive level of the elderly participants. In the future, it will be necessary to demonstrate the effects according to cognitive level in various aspects with more elderly people.

• Journal of Nutrition and Health
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• v.35 no.7
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• pp.779-790
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• 2002

Nutritional factors affecting bone mineral density (BMD) in the different age groups of Korean women were investigated to obtain baseline data for maintaining bone health. Information on diet and anthropometry were collected in 80 elementary school children (height 127.2 cm, weight 27.3 kg), 84 high school students (height 161.6 cm, weight 52.4 kg), 100 adults aged 25 to 35 years (height 159.4 cm, weight 52.7 kg) and 120 elderly people over 60 years of age (height 150.9 cm, weight 55.6 kg). Data for nutrient intake were obtained by 24-hour recall method. BMDs of lumbar spine (L$_2$-L$_4$) and femoral neck were measured by dual energy x-ray absorptiometry. The relationship between BMD of femoral neck and nutritional factors were analyzed. The average BMD of femoral neck for females was 0.61 g/$\textrm{cm}^2$ in children, 0.88 g/$\textrm{cm}^2$ in adolescents, 0.90 g/$\textrm{cm}^2$ in adults, 0.64 g/$\textrm{cm}^2$ in elderly people. Among the adult subjects, 11.0% was classified as osteopenia in the femoral neck. For the elderly, the prevalence of osteopenia and osteoporosis were 34.2% and 47.5% of the subjects. It was shown the intake of energy, protein, plant protein, animal protein, fat, carbohydrate, Ca, P, Fe, vitamin A, thiamin, riboflavin, niacin, vitamin C, carbohydrate energy percent and fat energy percent influenced bone health status in all age groups. In the MAR on bone health status, children, adult and elderly subjects were significantly different among groups classified by bone health status and the MAR of the groups with good in bone health was higher. The RDA percent of each nutrient was influence factor on BMD. Nutrient intake of energy, protein, P, Fe, thiamin, niacin were lower BMD on below 75% of Korean RDA. Stepwise multiple regression analysis revealed that several dietary factors were influence on BMD. MAR on femoral neck BMD of children and elderly subjects was the highest influence factor. Beyond this, the most influential dietary factors on BMD were the vitamin A, total Ca and vegetable Ca. The above results have confirmed that dietary factors influence BMD in various age groups. Energy, protein, Ca, P, Fe, thiamin, riboflavin, niacin, vitamin C as well as MAR were important dietary factors influencing BMD. The results of this study revealed that people who received sufficient nutrients intake showed healthy bone status. The MAR mainly influenced the bone health status.

• Journal of Korea Game Society
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• v.13 no.3
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• pp.95-104
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• 2013

We have developed a serious game for the elderly named 'Paldokangsan 2' in 2012 as a next version of 'Paldokangsan 1'. 'Paldokangsan 1' was a walking game for two people using controllers of armrests and footboards with PC. 'Paldokangsan 2' had additional purpose to assist cognitive, physical, and psychological functions of the elderly. Especially, walking activity was implemented in a way that a player walks around the old traditional market place in 1970's while remembering and choosing healthy food to buy. We also developed two mini games for the elderly and people with functional disability with the similar purpose as 'Paldokangsan2'. 219 older adults (age$$\geq_-$$ 65) recruited from Asan city community center participated in the study. The result showed that the game play exerted positive effects on memory, concentration and vitality of the elderly.

• Korea Journal of Hospital Management
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• v.17 no.3
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• pp.23-36
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• 2012

Objectives : The coverage of Korean National Health Insurance is limited to basic level. Korean government encourages private health insurance for covering medical securities. So, many studies examined the determinants of purchasing private health insurance. However, 11% of Korean population is older than 65 in 2011. Considering the elderly is important to establish a health policy. The aim of this study is to examine factors determining the purchase of private health insurance among middle-aged and elderly Korean adults. Methods : We used the second Korean Longitudinal Study of Ageing (KLoSA), selected 8,688 sample of the aged 47 or older for the analysis. KLoSA collected information on demographic characteristics, income, health- related factors. KLoSA data include in the number of outpatient, inpatient, oriental hospital visit, dental clinic visit for two years. Logistic regression was used to examine the relationship between the determinants of purchasing private health insurance and the factors which include age, gender, education, residential district, marital status, smoking, drinking, physical exercise, economic activity status, national health insurance type, income, the number of chronic disease, and the number of outpatient, inpatient, oriental hospital visit, dental clinic visit for two years. Results : People who were older, did not live in a city, had higher IADL, currently drunk alcohol, did exercise regularly and had chronic diseases more than three were inclined not to purchase private health insurance. Females, the married, well-educated, past & currently smokers, the employed, high income earners, national health insurers, metropolitan citizens and someone who got high MMSE were more likely to purchase private health insurance. The more people experienced outpatients, inpatients, dental clinics and Chinese medicine clinics, the more private health insurance was purchased. The elderly people over 75 had more private health insurance than the aged 65-74. The strongest factors for private health insurance is gender, and economic status such as income. Conclusion : In this study, we found healthy-high income people were more likely to purchase private health insurance. In contrast, unhealthy-low income and older people did not. The economic factors were strongly related with private health insurance in aged over 75. These mean inequality exists in the using private health insurance. Therefore, the government should consider vulnerable social group before expanding private health insurance.

• The Journal of the Korea Contents Association
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• v.19 no.9
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• pp.348-356
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• 2019

This study is was to suggest improvement of assistive device for the elderly according to investigate the satisfaction and the needs of assistive device for elderly. The subjects were 184 beneficiary older adults in long-term health insurance who used home care service in I city and D city. Data were analyzed using SPSS 20.0. With the exception of cognitive assistance grade, subjects were showed from 'normal' to ' satisfied' on a types of assistive device and services related to assistive device. I, II grade subjects needed assistive device for self-care. III, IV and V grade subjects needed assistive device for safety and health maintenance. In the service related assistive device, All subjects needed service on 'periodic follow-up service', 'expert on assistive device' and 'comprehensive evaluation'. This results is significant in that it suggest to needed assistive device in accordance with grade unlike previous studies. Results of this study will expected to utilize as a basic evidence for improvement of assistive device, service related to assistive device for elderly.

• Korean Journal of Adult Nursing
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• v.14 no.3
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• pp.348-358
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• 2002

Purpose: The purpose of this study was to identify the factors influencing regular exercise of the elderly in discriminating regular exercise and non - regular exercise groups. Method: The subjects of this study were 167 elderly over the age of 60, living in a rural city in Korea. The data was collected by interview and self report questionnaire in 1999. The Cronbach 's alpha of scales used this study were .66 ~.97. Result: 1. There were significant differences in doing regular exercise between the perceived importance of the health(p=021), the perceived health status(p=.050), the perceived need of the exercise(p=000), the perceived importance of the exercise(p=.000), the intent of participation in the exercise program(p=.000), IADL score(p=.022), the perceived benefits of exercise (p=.000), the emotion of exercise(p=.000), HPLP(p=.000), the self efficacy(p=.001), the perceived benefits of health promoting behaviors(p= .011), the perceived barriers of the health promoting behaviors(p=.002), and the Internal locus of control(p=.021) of the elderly. 2. Variables which showed significance for discriminating regular exercise of the elderly in this study were the perceived need of the exercise(p=.000) and the perceived benefits of the exercise(p=.000). By using the combination of these variables, the possibility of proper prediction for predicting regular exercise group was 84.8 %, non - regular exercise group was 93.9%, and total Hit ratio was 89.4%. Conclusion: To improve exercise behavior in older adults, health care providers should focus of developing interventions to strengthen the perceived benefits, the perceived needs of the exercise.

• The Journal of the Convergence on Culture Technology
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• v.8 no.3
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• pp.175-182
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• 2022

The purpose of this study was to examine the effect of telephone intervention on the reduction of depression after the intervention for the elderly living alone during the COVID-19 pandemic. A one-group pretest and posttest design was used to examine changes in depression level following telephone intervention a once a week for 10 weeks. The subjects of this study were older adults aged 65 registered with 3 social welfare institutions in Wonju, and a total of 114 elderly completed a questionnaire before and after the intervention. Telephone intervention was provided by 56 nursing student volunteers, and each student was in charge of 2-3 elderly people. The depression score decreased from 6.59±3.74 before the intervention to 5.01±3.34 after the intervention (t=4.959, p<.001). Study findings suggest that telephone intervention is effective as an emotional support for the elderly living alone during the COVID-19 pandemic. Further research is needed to expand the scope of various subjects and regions, including the elderly not living alone.

• Journal of the Korea Academia-Industrial cooperation Society
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• v.20 no.3
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• pp.318-323
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• 2019

In this study, we examined the differences in age among the various functions required for everyday life through smartphone using environment. The subjects were composed of 30 young adults and 30 elderly people. We set up 12 tasks to evaluate the performance of smartphone functions. At the same time, a questionnaire about smartphone usage habits was made. The questionnaire consists of items related to user history and usage habits. ANOVA analysis was performed using Minitab version 14, and statistically significant differences were found in 10 tasks. The result of the actual values for each task showed that the elderly generally took more time to perform all the tasks than the younger ones. Especially, the tendency of the task which requires a lot of keystrokes was revealed. Especially, in the case of a task requiring a lot of keystrokes, the tendency was remarkable. Young adults have found that they use all functions uniformly overall, and the functions used by the elderly were biased toward some functions, such as dialing, text, kakao talk, and searching. These results suggest that young people use smartphones more frequently than elderly people, and as they become accustomed to using smartphones, the time required to perform functions may be shortened. We suggest that it is necessary to design in terms of hardware or software so that the elderly people can input easily and conveniently.

• The Journal of the Korea Contents Association
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• v.11 no.7
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• pp.406-417
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• 2011

The purpose of this paper is to examine the effects of computer/internet game play on depression and life satisfaction via perceived self-control among older adults in Korea. Data were collected from a survey of 237 community-dwelling older adults (age${\geq}$65) who reported internet users. A path analysis was used to examine the causal relationship among the main constructs. Results showed that the computer/internet game play had positive effects on perceived self-control. Perceived self-control was found to decrease depression and improve life satisfaction among older adults. Additional analysis indicated that the computer/internet game play in older adults did not directly affect mental health (depression and life satisfaction) but indirectly affected it via perceived self-control. Furthermore, perceived self-control had greater effects on depression than on life satisfaction. These findings have crucial implications in that perceived sense of self-control needs to be seriously considered when we develop mental health games for older adults.