• Therapeutic Science for Rehabilitation
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• v.13 no.1
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• pp.49-63
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• 2024

Objective : The purpose of this study was to investigate parental perspectives on cognitive rehabilitation using a combination of phenomenological research methodology and word cloud analysis. Methods : Interviews were conducted with five parents of children with developmental disabilities. Word cloud analysis was conducted using Python, and five researchers analyzed the meaning units and themes using phenomenological methods. Words with high frequency were considered as a heuristic tool. Results : A total of 43 meaning units and nine components related to the phenomenon of cognitive rehabilitation were derived, and three themes were finalized. The main themes encompassed the definition of cognitive rehabilitation, challenges associated with cognitive rehabilitation, and factors influencing the selection of a cognitive rehabilitation institute. Cognitive rehabilitation emerged as a treatment focused on improving learning, daily functioning, and cognitive abilities in children with developmental disabilities. The perceived issues with cognitive rehabilitation pertained to treatment methods, therapist expertise, and associated costs. In addition, parents highlighted the importance of therapist expertise, humane personality, and affordability of cost and schedule when choosing a cognitive rehabilitation institute. Conclusion : Parents expressed expectations for substantial improvements in their children's daily functioning through cognitive rehabilitation. However, challenges were identified in clinical practices. Going forward, we expect that cognitive rehabilitation will evolve into a better therapeutic support service addressing the concerns raised by parents.

• Journal of Digital Convergence
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• v.17 no.6
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• pp.439-446
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• 2019

Poststroke depression can have a secondary effect on social cognition, and this can lead to behavioral problems. The purpose of this study was to verify the effects of a Cognitive Stimulation Circulative Program(CSCP) based on occupational therapy. The participants of this study were 12 stroke patients. The CSCP was organized in such a way to promote the cognitive process. This program were carried out as a circuit program(16 sessions). As a result of this study, the depression scale of the subjects had statistically significant benefit(p<.05). Also, the evaluation results verified partial improvement in quality of life, and the relationship change scale which was used to evaluate role of physical and social cognitive function ability had statistically significant benefit(p<.05). The above results of this study verified that the CSCP was an efficient intervention program that reduces the depression of stroke patients and improve their social cognitive function ability, thus enhancing the quality of life.

• Journal of the Korea Academia-Industrial cooperation Society
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• v.21 no.8
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• pp.537-545
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• 2020

This study was undertaken to investigate the effect of cognitive rehabilitation program (CRP) using virtual content, for recovering patients with cerebrovascular disease (CVD). A total of 34 patients with CVD were divided into a control group and an experimental group, and subsequently subjected to a virtual content based CRP, followed by cognition, ADLs, and upper limbs. The control group completed a universal rehabilitation program (URP), and the experimental group was provided a URP and a virtual content based cognitive rehabilitation program. For both groups, respective programs were conducted twice a day, 5 times a week for 4 weeks. Both groups showed significant improvement in ADLs (p<0.05); but the amount of change in the experimental group 5 point improved significantly (p<0.05). Cognition was significantly different for both groups (p<0.05). However, the experimental group showed a greater change (2 point) than the control group when considering the amount of change (p<0.05). Comparing the amount of change in the upper extremity, the experimental group showed a significant change (0.7 point) than the control group (p<0.05). This study confirms that compared to URP, CRP using virtual content significantly improves ADLs and cognition.

• Journal of The Korean Association For Science Education
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• v.39 no.4
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• pp.545-562
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• 2019

The purpose of this study is to develop cognitive scaffolding tools and to explore their effects on integrated science process skills of high school students. For this purpose, we developed cognitive scaffolding tools including one kind of classroom instruction for training integrated process skills and two kinds of individual learning materials that students can selectively study according to their level of inquiry ability. In addition, we developed hypothetico-deductive inquiry tasks as a tool to investigate the level of students on the integrated process skills for pre-test and post-test respectively. In order to verify the effectiveness of the cognitive scaffolding tools, we conducted inferential statistics on the pre-and post-tests of the experimental group and control group to examine statistical significance of students' inquiry level change depending on the usage of the cognitive scaffolding tools. We also produced Wrightmaps based on Rasch model to compare the change of inquiry ability depending on usage of the cognitive scaffolding tools. As a result, the experimental group using the cognitive scaffolding tools showed a significantly higher scores in all the components of integrated process skills namely, designing inquiry, collecting data, analyzing data, and forming conclusion than the control group. In addition, students who used cognitive scaffolding tools improved their inquiry ability and showed a distinct transition to higher level in each component of the integrated process skills. The results of this study suggest that high school students need cognitive scaffolding to alleviate or eliminate the functional barriers they face in conducting scientific inquiries.

• Therapeutic Science for Rehabilitation
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• v.12 no.3
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• pp.79-88
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• 2023

Objective : This study was to apply a cognitive rehabilitation group program based on sensory activity in patients with dementia living in a facility and to check its effectiveness on cognitive function, depression, and quality of life (QOL). Methods : Sensory-based cognitive rehabilitation group programs (20 sessions) were conducted for eight elderly with dementia over the age of 65 living in a nursing facility located in H-gun, Gangwon-do. The participants' cognitive function, depression level, and QOL were evaluated before and after the program. Results : The mean of Mini-Mental State Examination-Dementia Screening increased; however, there was no statistically significant difference. In contrast, the mean post-test score of the Subjective Memory Complaints Questionnaire decreased, and there was a statistically significant difference (p < .05). The mean post-evaluation score of Short Geriatric Depression Scale measured to confirm the decrease in depression compared to the pre-evaluation score, but there was no statistically significant difference. Finally, the mean post-evaluation score of the World Health Organization QOL assessment instrument-Brief confirmed the change in the QOL, and there was a statistically significant difference (p < .001). Conclusion : This study will provide the basis for suggesting the usefulness of developing a sensory activity-based cognitive rehabilitation group program for dementia patients living in facilities.

• Therapeutic Science for Rehabilitation
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• v.12 no.2
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• pp.85-98
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• 2023

Objective : We investigated the efficacy of an artificial intelligence computerized cognitive training program using motion capture to identify changes in cognition, depression, and quality of life in older adults with mild cognitive impairment. Methods : A total of seven older adults (experimental group = 4, control group = 3) participated in this study. During the COVID-19 period from October to December 2021, we used a program, "MOOVE Brain", that we had developed. The experimental group performed the program 30 minutes 3×/week for 1 month. We analyzed patients scores from the Korean version of the Mini-Mental State Examination-2, the Consortium to Establish a Registry for Alzheimer's Disease Assessment Packet for Daily Life Evaluation, the short form Geriatric Depression Scale, and Geriatric Quality of Life Scale. Results : We observed positive changes in the mean scores of the Stroop Color Test (attention), Stroop Color/Word Test (executive function), SGDS-K (depression), and GQOL (QoL). However, these changes did not reach statistical significance for each variable. Conclusion : The study results from "MOOVE Brain" can help address cognitive and psychosocial issues in isolated patients with MCI during the COVID-19 pandemic or those unable to access in-person medical services.

• Proceedings of the Korean Society of Broadcast Engineers Conference
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• 2017.06a
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• pp.149-150
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• 2017

본 논문에서는 RGB-stripe 부화소 구조를 갖는 디스플레이에서 인지 화질을 향상시키면서, 색 왜곡을 저감할 수 있는 부화소 렌더링을 수행한다. 우선 인지 화질을 향상 시키는 주 필터와, 색 왜곡을 억제하는 비음수 필터를 디자인한다. 색 왜곡 가능성의 계산에 따라, 두 필터를 조합하고 영상을 렌더링 한다. 실험 결과, 본 논문의 부화소 렌더링 방법이 비교 방법에 비해 좋은 인지 화질을 얻으면서도 색 왜곡을 억제함을 보여준다.

• Proceedings of the Korean Society of Broadcast Engineers Conference
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• 2008.02a
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• pp.7-11
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• 2008

최근의 로봇에 대한 연구를 살펴보면 인간-로봇 상호작용과 시스템의 통합에 관련된 연구가 증가하고 있음을 알 수 있다. 또한 인식 및 인지에 관련된 요소기술들은 이미 상당한 수준에 올라서 있다. 이를 바탕으로 전 세계적인 로봇연구의 추세는 요소기술들의 통합을 통하여 완전한 개체로서의 로봇을 만들려고 하고 있으며 상업화된 시장으로 끌어내려는 쪽으로 변화하고 있다. 그러나 로봇을 상업화된 시장으로 끌어내기 위한 다양한 연구와 노력에도 불구하고 많은 부분에서 부족한 것이 현실이며, 지금까지 개별적으로 개발된 각 요소기술의 통합 또한 필수적이다. 특히 인간과 비슷한 인지능력의 확보를 위한 불확실성 극복능력과 개별적인 요소기술의 성능에만 의지하지 않는 인식능력의 확보는 서비스로봇의 신뢰성 향상을 위하여 필수적이다. 본 논문에서는 이러한 문제를 해결하기 위해서 행위적 인지 개념을 제안하였으며 Cognitive Robotic Engine을 통하여 이를 구현하여 상용화된 서비스로봇 플랫폼에 적용하여 실험하였다.

• Proceedings of the KIEE Conference
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• 2008.10c
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• pp.231-233
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• 2008

본 논문에서는 연계점전압의 변화율과 가속이득을 이용한 향상된 수동적 인지법을 제안하였다. 기존의 수동적 인지법과 비교하여 불검출영역의 감소를 확인하였고 적정한 가속이득 값을 설정하기 위하여 단독운전 검출 소요시간과 시스템 민감도를 분석하였으며 컴퓨터 시뮬레이션을 통해 제안한 알고리즘의 타당성을 검증하였다.

• Proceedings of the KSR Conference
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• 2006.11b
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• pp.1477-1482
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• 2006

플리커란 형광등의 광 출력 변동폭이 큼으로 인해 인간의 눈과 뇌로 이루어진 감각시스템이 불유쾌한 감각을 인지하는 현상이다. 이러한 플리커 현상에 대한 저감 및 감소 대책이 미흡한 실정이며, 인간의 인지 능력 향상을 위해 플리커 문제 해결방안에 대한 연구 수행이 필요하다. 본 논문에서는 플리커를 감소시키기 위한 방법으로 정전력 단권 변압기 회로를 이용한 안정기 적용 방법을 제시하였다. 이 방법은 형상시스템의 전압원이 가변되더라도 형광등에 인가되는 전압을 허용범위 내에서 제어함으로 감소시킬 수 있다. 플리커 현상을 감소시키기 위하여 정전력 단권 변압기 회로를 이용한 안정기 적용법과, 전자식 안정기의 적용법을 제시하였으며, 본 연구에서 제시한 방법을 사용한다면 허용 한계 및 그 이하로 감소시킬 수 있을 것이며, 이를 이용한 장치를 사용하는 곳에서는 인간의 인지 능력을 향상 시킬 수 있을 것으로 사료된다.