• International Journal of Computer Science & Network Security
• /
• v.21 no.8
• /
• pp.79-86
• /
• 2021

Alzheimer's is a chronic progressive disease which exhibits varied symptoms and behavioural traits from person to person. The deterioration in cognitive abilities is more noticeable through their Activities and Instrumental Activities of Daily Living rather than biological markers. This information discussed in social media communities was collected and features were extracted by using the proposed fuzzy logic based algorithm to address the uncertainties and imprecision in the data reported. The data thus obtained is used to train machine learning models in order to predict the longevity of the patients. Models built on features extracted using the proposed algorithm performs better than models trained on full set of features. Important findings are discussed and Support Vector Regressor with RBF kernel is identified as the best performing model in predicting the longevity of Alzheimer's patients. The results would prove to be of high value for healthcare practitioners and palliative care providers to design interventions that can alleviate the trauma faced by patients and caregivers due to chronic diseases.

• The Korea Journal of Herbology
• /
• v.24 no.4
• /
• pp.165-171
• /
• 2009

Objectives : In the present study, we assessed the effects of the ethanolic extract of Crataegus pinnatifida Bunge on the learning and memory impairments induced by scopolamine using the passive avoidance and the Morris water maze tasks in mice. Methods : The cognition-enhancing effect of C. pinnatifida was investigated using a passive avoidance test, the Morris water maze test and Y-maze test in mice. Drug-induced amnesia was induced by treating animals with scopolamine (1 mg/kg, i.p.). Results : The ethanolic extract of C. pinnatifida (100, and 200 mg/kg) significantly reversed the scopolamine-induced cognitive impairments in the passive avoidance test (p < 0.05). Moreover, C. pinnatifida (200 mg/kg) also improved escape latencies in training trials and increased swimming times and distances within the target zone of the Morris water maze (p < 0.05). On the Y-maze test, C. pinnatifida (100, and 200 mg/kg) also significantly reversed scopolamine- induced cognitive impairments in mice (p < 0.05). Conclusions : The ethanolic extract of Crataegus pinnatifida dramatically possesses the anti-amnestic and cognitive-enhancing activities related to the memory processes, and these activities were parallel to treatment duration and dependent on the learning models.

• Journal of Korean society of Dental Hygiene
• /
• v.23 no.1
• /
• pp.43-53
• /
• 2023

Objectives: We developed an integrated cognitive function improvement program comprising cognitive, emotional, and physical domains, and remotely applied it to middle-aged adults to investigate its effects on oral health, cognitive function, and mental health improvement. Methods: The experimental group underwent the program remotely, using the Zoom platform. A total of 24 participants were recruited and divided into 12 experimental and 12 control groups. The program comprised cognitive, emotional, and physical activities. The sessions lasted 90 min and were performed twice a week for 6 weeks from April to May 2022. Results: Cognitive function, arousal, physical, and mental stress were significantly improved in the experimental group after the intervention than at the baseline (p<0.05). Regarding oral health, tongue plaque decreased 1.34-fold (p<0.01) and saliva increased 1.04-fold (p<0.05) in the experimental group after the intervention than at the baseline. Moreover, the experimental group showed significant improvements in tongue plaque and saliva than the control group (p<0.05 for tongue plaque and p<0.01 for saliva). Regarding mental health, social support significantly increased 11.67-fold (p<0.05) in the experimental group than at the baseline. The experimental group also showed significantly improved social support than the control group (p<0.01). Conclusions: The non-face-to-face integrated cognitive function improvement program for middle-aged adults improved their cognitive function and oral and mental health. Based on these findings, this program may be a useful health program tool for middle-aged individuals.

• The Journal of the Korea Contents Association
• /
• v.17 no.5
• /
• pp.45-55
• /
• 2017

The purpose of this study was to identify the participation in activities, emotions, and problem behaviors of elderly people residing in nursing homes. In this observational study targeting 81 elderly patients with dementia, each patient's participation in activities, emotion, and problem behaviors were observed for 4 hours per day with 20 minutes interval, which leads to 6,804 data based on 12 times a day for 7 days. According to this study, 90.1% of the participants were suffering from severe cognitive impairment. Their emotions were scored 4 out of 7. They mainly participated in activities such as sitting or lying down, which had no specific purpose, but they showed the most positive emotion when involved in social activities. The most frequent types of problem behaviors were repetitive behaviors and making noises, and the frequency of their behaviors were different depending on the time. There were significant correlation between cognitive functions, emotions, and problematic behaviors. Therefore, it is necessary to find effective ways to increase participation in activities, induce participation in positive emotional activities, and reduce problem behaviors manifested most prominently each hour of the elderly patients with dementia residing in nursing homes.

• Journal of International Academy of Physical Therapy Research
• /
• v.4 no.2
• /
• pp.545-551
• /
• 2013

The purpose of this study is to determine the correlations between problematic behaviors and activities of daily living(ADL) targeting 106 demented elderly people hospitalized in a geriatric hospital. To examine the cognitive function of the subjects, the study used Korean Mini Mental State Examination(K-MMSE). For problematic behaviors and ADL, the study collected data based on Patient Assessment Forms in the geriatric hospital. Among problematic behaviors, apathy/indifference had the highest correlation with the items of ADL. Irritability/lability, agitation/aggression, depression/ dysphoria, night-time behavior and wandering also showed to be correlated to items of ADL(p<.05). This study demonstrated that cognitive function, problematic behaviors and ADL of the demented elderly hospitalized in the geriatric hospital are correlated to each other.

• Food Science and Industry
• /
• v.51 no.1
• /
• pp.61-71
• /
• 2018

The evaluation of food taste is one of the important activities of human consciousness and it is practiced by sensory analysis using 5 terminal sensorial consciousness among many other functions. These consciousness activities may be conducted by 3 way branching transformation (3-WBT) logic, which choose one out of 3 options under the multi-layered consciousness decision making system. On the basis of this logic, cognitive sensory evaluation (CSE) method was developed to carry out questionnaire survey covering objective and subjective issues during consumption of food for pregnant women. The results of the CSE for several food items was presented with the Table-pattern called CSET covering consciousness factors and their effects on the food consumers.

• Journal of the Korea Convergence Society
• /
• v.11 no.2
• /
• pp.37-43
• /
• 2020

The aim of this study was to examine the relationships between upper limb muscle strength and cognitive function in older Korean adults. A total of 130 Community-dwelling older adults, who were able to independently conduct activities of daily living, participated in the study. We assessed upper limb muscle strength using a handgrip strength and arm curl test, and their cognitive function using a Montreal cognitive assessment (MoCA) and general practitioner assessment of cognition (GPCOG) tests. Out of 130 participants, 26 (20%) had normal cognitive functions, while 104 older adults (80%) had mild cognitive impairments (MCI). Handgrip strength was significantly different between older adults with and without MCI (p<.05) and was related to MoCA and GPCOG (p<.05). In the result, there is a correlation between physical ability and cognitive function of the older adults. Therefore, it is necessary to develop exercise program to improve mental health.

• The Journal of the Korea Contents Association
• /
• v.15 no.11
• /
• pp.359-373
• /
• 2015

Cognitive reserve(CR) is the ability to optimize or maximize performance through complementary brain networks. CR is relevant to normal aging in cognitive-linguistic abilities. There are few domestic systematic reviews or meta-analyses that analyze the relationships between multiple CR and cognitive-linguistic domains in healthy older people. This meta-analysis included 32 studies published since 2000. In result, education level topped the list, followed by the occupation, cognitively stimulating activities, and the multilingualism. Most studies were related to memory, global cognition, and language. CR had a modest positive association with cognitive-linguistic performance. Multiple domains including memory and language also showed the significant correlations across most measures of CR. This study provides evidence-based information to support cognitive-linguistic ability in normal aging.

• Journal of Elementary Mathematics Education in Korea
• /
• v.21 no.4
• /
• pp.621-641
• /
• 2017

The purposes of this study were to identify the characteristics of students with different cognitive styles in the communication process according to the types of mathematical tasks and investigate the effects of their cognitive styles and types of mathematical tasks on their mathematical communication. For this, the investigator selected subjects according to the field dependent-field independent cognitive style by Witkin et al.(1977, p. 7). Mathematical tasks were developed in the areas of numbers and operations, regularity, and measurement according to the four types of Stein & Smith(1998, p. 269), which include the Memorization, Procedures without Connections, Procedures with Connections, and Doing Mathematics tasks. The selected students were divided into homogeneous groups according to their cognitive styles, and their communication processes according to the four types of mathematical tasks were observed through participation and videotaped. The videotapes were then transcribed and analyzed in protocols. The conclusions is that mathematical tasks of high cognitive level had positive effects on the activation of significant mathematical communication among the students and that differences in approaches to tasks according to their cognitive styles influenced their communicative activities in speaking and listening.

• Health Policy and Management
• /
• v.22 no.4
• /
• pp.522-537
• /
• 2012

The purpose of this study was to analyze the level of the cognitive function and activities of daily living of the beneficiary older adults at home based on Korean Long-term Care Insurance System. A cross-sectional descriptive survey was conducted from November 2010 to May 2011, the final respondents were 1,026 beneficiary older adults taking home visit care covered in Korean long-term care insurance system. The questionnaire included general characteristics of subjects, cognitive function, ADL(Activity of daily living). The data was analyzed using the SPSS 20.0 version. There was significant difference in cognitive function and ADL between 1st Grade, 2nd Grade and 3rd Grade of long-term care classification. The correlated factors of cognitive function were ADL, long-term care grade, disability of arm and leg, limitation of joint, bed sore and tube feeding. The correlated factors of ADL were cognitive function, long-term care grade, disability of arm and leg, bed sore and tube feeding. This study suggests that cognitive functions have to be mainly considered in long-term care grade. It is necessary to make an effort to develop long-term care grade in Korean long-term care insurance system an cognitive function improvement program for the beneficiary older adults. Above all things government will be seriously contemplating of revise contents for long-term care grade to provide quality of care for the older adults.