• Journal of Biomedical Engineering Research
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• v.42 no.4
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• pp.186-192
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• 2021

In this paper, we evaluated prediction accuracy of Euler angle spectrograph classification method using a convolutional neural networks (CNN) for hand gesture recognition in augmented reality (AR) cognitive rehabilitation system based on Leap Motion Controller (LMC). Hand gesture recognition methods using a conventional support vector machine (SVM) show 91.3% accuracy in multiple motions. In this paper, five hand gestures ("Promise", "Bunny", "Close", "Victory", and "Thumb") are selected and measured 100 times for testing the utility of spectral classification techniques. Validation results for the five hand gestures were able to be correctly predicted 100% of the time, indicating superior recognition accuracy than those of conventional SVM methods. The hand motion recognition using CNN meant to be applied more useful to AR cognitive rehabilitation training systems based on LMC than sign language recognition using SVM.

• Journal of Convergence for Information Technology
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• v.10 no.8
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• pp.203-212
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• 2020

The purpose of this study was to investigate the effects of cognitive rehabilitation programs using Virtual Reality(VR) content on the daily living abilities such as cognitive abilities, depression, and upper extremity functions of the elderly. The study group analyzed the effectiveness by separating the experimental group, which is the virtual reality cognitive rehabilitation application group, and the control group, the universal cognitive stimulation program application group. As a result of the study, the MMSE-K score improved by 13.0% in the experimental group and 2.3% in the control group. The improvement in each area of the experimental group was found to be 3.1% MBI, 7.1% MFT(Rt.), 3.5% MFT(Lt.), and 25.4% K-GDS. As a result of comparing the pre-post score change between each group, there was a significant difference between groups in daily living ability (p<.001) and MFT(Rt.)(p<.01). In addition, as a result of comparing the changes in absolute alpha waves to confirm the degree of depression through brain waves, there was no statistically significant difference. However, in the experimental group, it was confirmed that the average value increased to a positive value. This study is an experiment to verify the effectiveness of the cognitive rehabilitation program using virtual reality contents, and suggests a new intervention method to maintain and improve the daily life ability, cognitive function, depression and upper extremity function of the elderly.

• 재활복지
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• v.21 no.2
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• pp.247-259
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• 2017

We investigated the improvement of cognitive functions, activity of daily living (ADL), and quality of life (QoL) after hemorrhagic stroke and identified associated factors. For this research, twenty-five patients with a hemorrhagic stroke were enrolled. We measured cognitive function, activity of daily living (ADL), and quality of life (QoL) from 7 days to 12 months after onset of stroke. Then we analyzed the correlation between cognitive function and other risk factors. According to results, cognitive functions improved during 12 months with statistically significant differences. Other functions were similar to cognitive functions. Improvement of cognitive functions were correlated with age, the type of hemorrhagic stroke and Glasgow coma scale at 7 days after stroke. Overall, cognitive function in patients with hemorrhagic stroke recovered from acute to 12 months after onset of stroke. And, improvement of cognitive function at this phase were associated with age, the type of hemorrhagic stroke and GCS score at 7 days. These results would provide us an information to plan cognitive rehabilitation in patients with hemorrhagic stroke.

• Journal of Korea Entertainment Industry Association
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• v.13 no.8
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• pp.603-610
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• 2019

This pilot study investigated the effects of a portable computerized cognitive training system on the visual-perceptual function of stroke patients with mild cognitive impairment. Subjects were twelve stroke patients with mild cognitive impairment, who were assigned to an experimental group (n=6) or a control group (n=6). All subjects were trained in their respective groups for 30 min/day, five times a week, for four weeks. In each session, the experimental group received a portable computerized cognitive training program, and the control group received conventional cognitive training. The Motor-Free Visual Perception-3 (MVPT-3) was used to measure subjects' visual-perceptual ability. The MVPT-3 total scores for both groups significantly improved after the intervention (p<.05). The total score on the MVPT-3 and the score on the visual short-term memory subcategory of the MVPT-3 significantly improved for the experimental group compared to the control group (p<.05). These findings suggest that the portable computerized cognitive training system might be effective to improve the visual-perceptual function of stroke patients with mild cognitive impairment.

• Journal of The Korean Society of Integrative Medicine
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• v.8 no.2
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• pp.121-130
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• 2020

Purpose : The objective of the current study was to evaluate the impact of the Computer-Based Cognitive Rehabilitation Program (CoTras) on the cognitive function and daily living activities of elderly and adult stroke patients. Methods : Twenty stroke patients were divided into two groups comprising 10 elderly stroke patients and 10 adult stroke patients. The CoTras was applied as the intervention for 30 minutes at a time, three times a week, for nine weeks (i.e., a total of 27 times), to both groups. The Neurobehavioral Cognitive Status Examination was used to assess cognitive function, and the Functional Independence Measure was utilized to evaluate daily living activities, prior to, during, and after the intervention. Results : The CoTras was demonstrated to have a statistically significant and positive effect on the cognitive function and daily living activities of stroke patients. However, the effect of the program on the restoration of weight-shifting capacity, as a component of the daily living activities of stroke patients, was without statistical significance. The program had a greater influence on improving the cognitive function and daily living activities of elderly stroke patients than adult stroke patients. Conclusion : This study makes a meaningful contribution to the literature on the topic as the intervention was demonstrated to lead to a more significant recovery of cognitive function and daily living activities in elderly stroke patients, compared to adult patients. Therefore, it is proposed that the CoTras should be used as a clinical intervention for elderly stroke patients. Future studies that evaluate the application of the CoTras, along with other occupation-based intervention programs, are warranted.

• Journal of Korea Entertainment Industry Association
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• v.14 no.5
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• pp.229-243
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• 2020

This study selected a total of 19 studies using databases of PubMed, SAGE Journal, and Wiley Online Library from 2000 to 2019 to find out about vocational rehabilitation of patients with schizophrenia in the area of overseas occupational therapy. First, the quality level of the study was all Level I. Second, the diagnosis for participants of the studies other than schizophrenia had the most schizoaffective disorder. Third, by types of interventions, 11 papers, the largest, were about social skills and cognitive rehabilitation training plus supported employment, followed by 4 about supported employment and 3 about social skills and cognitive rehabilitation training, 1 about other vocational approaches. Regarding studies showing effects in the employment rate by interventions type following three types of employment, as the most effective of studies, they were social skills and cognitive rehabilitation training plus support employment in competitive employment, social skills and cognitive rehabilitation training in non-competitive employment, and support employment in paid employment. Fifth, looking at the studies trend in the last 5 years, the most studies were social skills and cognitive rehabilitation training plus supported employment. Since this study classified the types and effects of vocational rehabilitation for patients with schizophrenia based on previous overseas studies, it is hoped that this study will be provided as basic data for understanding vocational rehabilitation of schizophrenic patients and applying them in domestic clinical settings.

• Journal of Korean Medicine Rehabilitation
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• v.23 no.3
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• pp.211-217
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• 2013

The purpose of this study is to report the effect of oriental medical treatments with exercise therapy on the frail elderly patient with gait disturbance and cognitive decline. The frail elderly patient with gait disturbance and cognitive decline was treated by oriental medical treatments combined with exercise therapy during 3 months. The improvement of clinical symptom was evaluated by Manual Muscle Test (MMT), Passive Range Of Motion (PROM), Mini Mental State Examination-Korea (MMSE-K). After 3 months, all of both lower extremity Manual Muscle Test (MMT) improved to Grade 4. Both knee extension Passive Range Of Motion (PROM) and Mini Mental State Examination-Korea (MMSE-K) also increased from -30/-30 to 0/-5, from 7 to 25 respectively. It could be suggested that oriental medical treatments with exercise therapy were effective on the frail elderly patient with gait disturbance and cognitive decline. And further research is encouraged to confirm the effectiveness of this treatment with a larger number of patients.

• Journal of Korean Academy of Nursing
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• v.33 no.8
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• pp.1161-1170
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• 2003

Purpose. The purpose of this study was to examine the effects of a rehabilitation program on hope and self-efficacy in a sample of homeless adolescent substance abusers at a halfway house in Seoul, Korea. Methods. Five residents of a halfway house were provided with a 16-week rehabilitation program based on a cognitive-behavioral approach. To evaluate the effectiveness of the program, this study used a single-case experimental design with the variables - hope and self-efficacy - being measured at pre-, post-, and follow-up tests. Results. While three participants showed considerable positive changes in hope and self-efficacy after the program, two participants did not show any positive changes. Despite this lack of consistent patterns in the effectiveness of the rehabilitation program, there was a qualitative change in social status (such as academic and work status) for the participants at the follow-up test. Conclusion. A rehabilitation program based on a cognitive-behavioral approach may improve the hope and self-efficacy of homeless adolescent substance abusers at a halfway house and help them to reintegrate into society.

• Journal of The Korean Society of Integrative Medicine
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• v.8 no.4
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• pp.49-58
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• 2020

Purpose : This study examined the effect of a home visit cognitive training program that uses a tablet-based digital recognition rehabilitation application, Brain Doctor, on local elderly people's cognitive function and depression. Methods : This study featured 20 elderly people living in Busan Metropolitan City, South Korea, who received a voucher for a home visit service to prevent dementia. The subjects were evenly divided into an intervention group provided with Brain Doctor and a control group provided with a conventional cognitive training program. Korean version of Mini Mental State Examination (MMSE-K) and Korean version of Montreal Cognitive Assessment (K-MoCA) were used to assess cognitive function in each group. Patient Health Questionnaire-9 (PHQ-9) was used to evaluate the depression levels. Results : The intervention group showed a significant change in cognitive function and depression after the intervention (p<.05). There was a statistically significant change in cognitive function and depression between the intervention and control groups (p<.05). Conclusion : This study confirmed that Brain Doctor had a positive effect on the cognitive function and depression of elderly people in the local community. It is expected to become a useful home visit program for dementia prevention in the future.

• The Korean Journal of Rehabilitation Nursing
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• v.16 no.2
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• pp.90-99
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• 2013

Purpose: This study aimed to examine influence of cognitive function, disease severity and disability on ability to perform activity of daily living (ADL) after ischemic stroke. Methods: A total of 88 patients with ischemic stroke were recruited from January 1, 2008 to December 31, 2012 and assessed with the standardized cognitive test battery and self-reports about disease severity, disability, and ADL. To analyze the data, ANOVA, Pearson correlation coefficients and multiple regression were conducted using SPSS/WIN program. Results: Significant correlations were found between ADL and visuospatial function, visual memory, executive function, and disability (r=.29~.38). Executive function and disability explained 17.3% of total variability in ADL performance after ischemic stroke. Conclusion: Executive function may be a promising target for cognitive rehabilitation after ischemic stroke. Thus, effective therapeutic interventions such as cognitive training for stroke patients should be considered to improve their ability to perform ADL.