• Journal of Ginseng Research
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• 제31권1호
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• pp.51-53
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• 2007

Ginseng shows protective and trophic effects in neurodegenerative diseases in experimental models, and showed cognitive improvement in normal population. To investigate the efficacy of ginseng in patients with Alzheimer's disease, patients, who met NINDS-ADRDA criteria for AD were studied Subjects were randomly assigned to ginseng group and control group, and ginseng group was treated with Korean white ginseng powder (4.5 g/day) for 12 weeks. Efficacy variables included changes in mini-mental status exam (MMSE) and cognitive subscales of Alzheimer's disease assessment scale (ADAS-cog) at 4 weeks and 12 weeks. Baseline MMSE and ADAS scores showed no difference between the two groups. Results showed that ginseng improved ADAS-cog compared to the control group at 12 weeks (p<0.05). MMSE was also increased by ginseng treatment compared to the control at 12 weeks (p<0.01). This study suggests the symptomatic efficacy of ginseng in patients with Alzheimer's disease.

• 재활간호학회지
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• 제13권1호
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• pp.5-12
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• 2010

Purpose: The purpose of this study was to examine the psychometric properties of the Korean version of the General Practitioner Assessment of Cognition (K-GPCog) scale. Method: The K-GPCog consists of the 2 subscales, patients and caregivers. Using a sample of 412 community-based Korean older adults, internal consistency reliability was estimated using Cronbach's alpha. To evaluate validity of the K-GPCog, correlational analysis was conducted using Pearson r between K-GPCog and the Korean Dementia Screening Questionnaire (KDSQ). Results: Cronbach's alpha coefficients of the K-GPCog patients' and caregivers' subscales .788 and .794 respectively. Pearson's correlation coefficients were r=-.374, r=-.481, and r=-.493, respectively for the subscales of patients and primary caregivers, and total K-GPCog. The degree of diagnostic agreement about the risk for cognitive disorders of older adults showed 11.7% and 11.2% respectively for the K-GPCog and the KDSQ. Conclusion: The findings provided preliminary evidence of the K-GPCog as a useful screening measure for detecting mild cognitive disorders of Korean older adults. The K-GPCog is particularly useful to identify cognitive disorders from primary caregivers when it is difficult to assess the level of cognition of older adults.

• 동의신경정신과학회지
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• 제19권2호
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• pp.15-39
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• 2008

Objective : The objective of this study was to investigate the effects of breath meditation with neurofeedback on memory, concentration of healthy adult volunteers Method 25 healthy adult volunteers were divided into two groups. One group was treated with breath meditation and real neurofeedback, but the other group was administered with breath meditation and sham neurofeedback three times a week for 10 sessions, Before and after 10 sessions neurofeedback, all subjects were measured by cognitive functions assessment, heart rate variability, BDI, STAI, K-WAIS, HRSD, VAS about amnesia. Results : 1. Breath Meditation decreased error rate and increased concentration, cognition strength, and success rate of Cognitive Functions Assessment. Also, Breath Medication elevated IQ score of K-WAIS short form. 2. Sham : neurofeedback increased concentration, cognition strength compared to Real neurofeedback. Conclusion : The results suggest that breath meditation might effect cognitive function of healthy adult positively, but neurofeedback is not clear. In order to prove whether neurofeedback is effective or not, it should be studied more.

• Nuclear Engineering and Technology
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• 제44권4호
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• pp.379-386
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• 2012

A symptom-based procedure with a critical safety function monitoring system has been established to reduce the operator's diagnosis and cognitive burden since the Three-Mile Island (TMI) accident. However, it has been reported that a symptom-based procedure also requires an operator's cognitive efforts to cope with off-normal events. This can be caused by mismatches between a static model, an emergency operating procedure (EOP), and a dynamic process, the nature of an ongoing situation. The purpose of this study is to share the evidence of mismatches that may result in an excessive cognitive burden in conducting EOPs. For this purpose, we analyzed simulated emergency operation records and observed some operator behaviors during the EOP operation: continuous steps, improper description, parameter check at a fixed time, decision by information previously obtained, execution complexity, operation by the operator's knowledge, notes and cautions, and a foldout page. Since observations in this study are comparable to the results of an existing study, it is expected that the operational behaviors observed in this study are generic features of operators who have to cope with a dynamic situation using a static procedure.

• 대한물리의학회지
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• 제15권4호
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• pp.155-161
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• 2020

PURPOSE: This study investigated the effect of a head-mounted display (HMD) based virtual reality (VR) cognitive rehabilitation program on the cognitive ability and activities of daily living in patients with mild cognitive impairment. METHODS: This study enrolled 5 mild cognitive impairment patients at the G welfare center in Gwangju metropolitan city. Patients were examined using the MMSEDS (Mini mental state examination-dementia screening). The VR cognitive rehabilitation program was applied twice a week for four weeks. The functional independence measure (FIM) and Loewenstein occupational therapy cognitive assessment-geriatric population (LOTCA-G) were compared before and after applying the VR cognitive rehabilitation program. RESULTS: Subsequent of application of the VR cognitive rehabilitation program, significant increase was observed in the LOTCA-G score. The FIM score was also perceived to increase, after the intervention, but was not statistically significant. CONCLUSION: Application of the VR cognitive rehabilitation program as a therapy is effective in improving the visual perception, and upper extremity executive ability, especially orientation, thinking organization, attention, and concentration.

• 한국응용과학기술학회지
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• 제38권2호
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• pp.511-520
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• 2021

본 연구는 인지프로그램 참여에 따른 경도인지장애 노인들의 일상생활활동 수행과 우울 수준의 변화를 분석하기 위한 단일집단 사전-사후설계 유사실험 연구이다. 연구대상은 J시 거주 W 복지센터를 이용하고 있는 경도인지장애 노인 16명이며, 주당 2회씩 총 8주간의 인지프로그램에 참여하였으며, 프로그램 참여에 따른 대상자들의 일상생활활동 수행수준과 우울의 변화를 평가하였다. 그 결과, 인지프로그램 참여 후 대상자들의 일상생활활동 수행수준이 유의하게 향상되었으며, 우울 수준이 통계적으로 유의미하게 감소되었다. 따라서, 경도인지장애 노인들의 일상생활활동 수행수준을 향상시키고, 우울 수준을 감소시키기 위해서 인지프로그램을 중재프로그램으로 활용하여야 할 것이며, 이 과정에서, 경도인지장애 노인들의 참여를 적극적으로 유도할 필요가 있다.

• 대한통합의학회지
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• 제10권4호
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• pp.83-91
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• 2022

Purpose: The goal of this study was to investigate changes in dual-task performance according to age and difficulty of cognitive tasks for the in community-dwelling elderly populations, as well as to examine their changes in hand dexterity according to age and cognitive function. Methods: A total of 135 people aged 65 years old and over participated in the study. To evaluate each participant's dual-task performance, each participant completed a dual task. To assess their cognitive function, the Korean Mini-Mental State Examination (MMSE-K) and the Korean version of Montreal Cognitive Assessment (MoCA-K) were the tools used. Participants were divided into three groups based on their age: 65-69 years, 70-79 years, and 80-89 years. Results: The findings showed that age groups and the difficulty of the cognitive task significantly affected the amount of time required for dual-task performance (p<.001). Additionally, the dual-task correct response rate (CRR) decreased significantly with age groups and the difficulty of the cognitive task (p<.001). The amount of time required for finger dexterity performance increased significantly with age groups (mean score±standard deviation [SD]; 19.46±2.26 in subjects aged 65-69 years; 21.92±2.61 in subjects aged 70-79 years; and 23.82±2.92 in subjects aged 80-89 years; p<.001). Moreover, as a result of the correlation between hand dexterity and cognitive function, MoCA-K was -0.563 and MMSE-K was -.412, showing a statistically significant correlation (p<.001). Conclusions: Age and the difficulty of the cognitive task affect the community-dwelling elderly populations in terms of dual-task performance and dual-task CRR. In addition, aging and general cognition have an impact on hand dexterity. Based on the results of this study, it is anticipated that the results will serve as a reference for domestic clinical trials that confirm cognitive decline in the elderly using dual task and hand dexterity evaluation.

• 한국산학기술학회논문지
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• 제19권4호
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• pp.472-480
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• 2018

본 연구는 경도와 중등도 치매 환자의 인지 기능과 작업 참여 능력을 알아보고, 인지 기능과 작업 참여의 상관관계를 알아보고자 시행하였다. 2017년 9월부터 2017년 11월까지 대구광역시 지역의 주간보호센터를 방문하는 95명의 치매 환자를 대상으로 하였다. 인지 기능을 측정하기 위하여 한국판 간이정신상태 판별검사(MMSE-K)와 한국판 로웬스타인 작업치료 인지 평가-노인용(Loewenstein Occupational Therapy Cognitive Assessment Geriatric population: (LOTCA-G)을 사용, 작업 참여를 측정하기 위하여 인간작업모델 선별 평가도구(MOHOST)를 사용하였다. 본 연구 결과는 SPSS 20.0 통계처리 프로그램의 기술 통계를 이용하여 연구 대상자의 인지 기능과 작업 참여 정도를 분석하였고, 인지 기능과 작업 참여 간 상관관계 분석을 위해 피어슨 상관분석을 실시하였다. 연구 결과 치매 환자의 인지 기능과 작업 참여 간 상관관계를 확인할 수 있었다. 본 연구의 결과를 바탕으로 치매 환자의 평가 및 치료적 목표 수립 시 인지 기능과 관련한 작업 참여도 고려해야 할 것으로 사료된다.

• The Journal of Korean Physical Therapy
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• 제27권5호
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• pp.364-368
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• 2015

Purpose: Walking in the dual-task condition is a critical skill for hemiplegic patients to live in real-life situations. The purpose of this study was to compare the effect of dual-task gait training and general gait training on gait parameters and cognitive function in patients with chronic stroke during dual-task walking. Methods: The study included 23 patients with chronic hemiparetic stroke who were randomly divided into experimental (dual-task gait training) and control (general walking training) groups. The 11 subjects in the experimental group and nine subjects in the control group received dual-task gait training (walking while handling a ball, crossing obstacles, picking up various objects, and problem solving simple cognitive tasks and general over-ground gait training, respectively, for 30 minutes per day 5 days per week for 4 weeks. Spatiotemporal parameters and cognitive tasks in the dual-task gait condition were measured. Statistical analysis of the changes between the pre- and post-intervention measurement variables was performed using ANCOVA. Results: In the gait condition under cognitive tasks, the changes pre- and post-intervention in gait velocity, stride length, double support limb, and step symmetry were significantly greater in the dual-task gait training group; however, the dual-task gait training group showed no significant improvement compared to the general gait training group in terms of the assessment of cognitive tasks. Conclusion: The findings suggest that dual-task gait training may be beneficial for walking ability in dual-task walking condition.

• 한국과학교육학회지
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• 제11권2호
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• pp.23-30
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• 1991

The purpose of this study is to investigate the interrelationships on integrated science process skills and Piagetian cognitive modes for high school students according to the different cognitive reasoning levels. About 509 high school students were randomly selected for the samples of this study. They were identified as concrete, transitional and formal operational stage with the scores of GALT(Group Assessment of Logical Thinking) developed by Roadrangka, Yeaney and Padilla(1982), and TIPS II(Test of Integrated Process Skills) developed by Burns, Wise and Okey(1983). The result of this study were showed that about 11.8% of the samples were in the concrete operational stage and about 24.4% of the samples were in the transitional stage, while about 63.8% of them were in the formal operational stage. It was also found that the achivement scores of the science process skills increase in accordance with the cognitive reasoning levels. The value of the correlation coefficient between science process skills and cognitive reasoning abilities was 0.49, which was significant at the 0.05 level. This finding seems to support previous research that the student's cognitive reasoning abilities appeared to have influenced student's scores of the science process skills No differences to the logical reasoning ability between male and female students according to each cognitive level were found except formal operational stage.