• 한국조경학회지
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• 제33권6호
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• pp.1-11
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• 2006

The purpose of this study was to investigate the influence of natural landscapes in the context of work environments. The study examined the impact of natural landscapes on urban office workers' stress reduction and cognitive performance, using physiological, psychological, and cognitive measures. One-hundred-twenty urban office workers participated in the experiments. The physiological measures used were GSR (galvanic skin response) and IBI (interbeat interval), and the psychological measure was ZIPERS (Zucherman Inventory of Personal Reactions). Cognitive performance was measured using a mental arithmetic test that had been developed by a pretest. The results from the physiological, psychological, and cognitive measures converged to indicate that the natural landscape had more beneficial effects in relieving both psychological and physiological stress and in enhancing cognitive performance of the of office workers than the city landscape. The results suggest wide applications in the fields of workers' well-being and landscape research. First, the results can provide reliable information for promoting natural landscaping in work places in order to relieve worker stress and enhance cognitive performance. Second, the results provide an example for future empirical landscape research using multiple measurements, such as psychological, physiological, and cognitive tests. Third, they can foster experimental research to investigate the relationship between stress reduction and natural landscapes.

• Educational Technology International
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• 제23권2호
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• pp.157-181
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• 2022

Scale scores for cognitive domains have been used as an important indicator for both academic achievement and clinical diagnosis. For example, in education, Cognitive Abilities Test (CogAT) has been used to measure student's capability in academic learning. In a clinical setting, Cognitive Impairment Screening Test utilizes items measuring cognitive ability as a dementia screening test. We demonstrated a procedure of generating cognitive ability test items similar as in CogAT but the theory associated with the generation is totally different. When creating cognitive test items, we applied automatic item generation (AIG) that reduces errors in predictions of cognitive ability but attains higher reliability. We selected two cognitive ability test items, categorized as a time estimation item for measuring quantitative reasoning and a paper-folding item for measuring visualization. As CogAT has widely used as a cognitive measurement test, developing an AIG-based cognitive test items will greatly contribute to education field. Since CLASS is the only LMS including AIG technology, we used it for the AIG software to construct item models. The purpose of this study is to demonstrate the item generation process using AIG implemented within CLASS, along with proving quantitative and qualitative strengths of AIG. In result, we confirmed that more than 10,000 items could be made by a single item model in the quantitative aspect and the validity of items could be assured by the procedure based on ECD and AE in the qualitative aspect. This reliable item generation process based on item models would be the key of developing accurate cognitive measurement tests.

• 디자인학연구
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• 제15권4호
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• pp.243-252
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• 2002

인터넷 환경의 발전으로 인한 사용자 폭의 확대는 연령계층별 사용자에 대한 인지특성의 이해와 이에 따른 사용자 중심의 디자인 방법을 필요로 하고 있다. 이와 같은 배경에서 본 연구는 웹 인터페이스에서 시각정보의 인지특성 도출을 위해 시지각 인지프로세스 모델을 제시하였으며, 시각정보에 대한 시지각 계측실험의 과정을 거쳐 연령 계층별 피험자의 인지특성에 대한 실질적인 데이터를 확보할 수 있었다. 이의 결과를 토대로 연령계층별 사용자의 인지특성은 시지각 인지프로세스의 세부속성인 형태, 색채, 공간, 운동과 시지각의 생리적, 물리적, 인지적 특성이 변수로 작용하여 서로 다른 인지특성을 가지고 있음을 밝혔다. 그 결과로 시지각 인지프로세스 모델의 다양한 적용은 연령계층별 사용자의 인지특성을 구체적이며 체계적으로 도출할 수 있는 수 있는 기반이 될 수 있을 것이며 웹 인터페이스의 평가 모델로도 활용 될 수 있을 것이다. 또한 본 연구는 디자이너의 역할 확대와 연령계층별 사용편의성 연구방향을 확립할 수 있는 기반을 마련하는 계기가 되었다는데서 그 의의가 있다.

• 대한인간공학회지
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• 제18권2호
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• pp.35-45
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• 1999

Driver centered vehicle design is the important factor for driver's safety, product quality, and so on. Therefore, people has recently recognized the importance of driver centered vehicle design. Especially, in the focus of driver-vehicle interaction system, it is very important factor to ergonomic design of vehicle cockpit. In this study, Sketch Map method was used to measure of driver's cognitive map on IP(Instrument Panel) that is the basic factor to ergonomic design for vehicle cockpit. The compatibility of Sketch Map method was validated for the measurement of driver's cognitive map and then the accuracy between two groups was analyzed using Sketch Map method. Subjects were divided in two groups, the first group of subjects has their own vehicles and driver license, and the second group of subjects doesn't have own vehicle but has driver license. The result showed that for the case of the first group, the shape of IP in the cognitive map was influenced by IP of their each vehicle. However, for the case of the second group, it showed the difference between IP in the cognitive map and IP of experienced vehicle many times because they have been driving various type of vehicle. So, the shape of IP in the cognitive map was influenced by various type of IP.

• 대한의용생체공학회:의공학회지
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• 제35권6호
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• pp.197-202
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• 2014

The cognitive rehabilitation training is important for treating many cognitive impairment conditions, including Parkinson's disease, stroke, and ADHD. In this study, we developed a new evaluation system to improve the measurement of the conventional evaluation systems for cognitive rehabilitation training. The developed system measured the activity of dopamine(DA) and an autonomic nervous system(ANS) with photoplethysmography and electromyography. The results demonstrated that the cognitive capacity was increased but the activity of DA was decreased with unbalanced ANS by short-term stress. Based on the results, the effect of short-term stress should be recognized for the cognitive rehabilitation training.

• 한국초전도학회:학술대회논문집
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• 한국초전도학회 2009년도 Korea Superconductivity Society Meeting 2009
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• pp.66-66
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• 2009

• 한국주거학회논문집
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• 제7권1호
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• pp.55-62
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• 1996

The purpose of this study is to identify the cognitive measurement scale of residential life management of apartment residents. The questionaires were distributed to 550 housewives and 392 questionaires were analyzed in this study. For the construct validity of this residential life management, the methods of factor analysis was used. As the results, 5 factors of residential life management of apartment residents were extracted. They are 1) Residential life covenience service, 2) Residential life support service, 3) Resident's activity support and announcement of managerial works. 4) Safety and order sustaining, 5) Precaution to accident.

• 한국전자통신학회논문지
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• 제10권1호
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• pp.125-132
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• 2015

본 논문은 인지능력이 저하된 노인들에게 침과 뜸 요법을 시행하고 HRV 측정값을 통하여 그 효과를 분석한다. 인지능력이 저하되거나 상실된 사람들에게 자주 사용되었던 주요한 경혈을 고문헌에서 조사하였다. 인지능력이 저하된 노인들에게 침과 뜸을 시술한 후 HRV 측정기를 이용하여 여러 가지 변화를 측정하였다. 측정된 값들을 상호 비교하여 자율신경계와 심박동수의 변화에 침과 뜸이 어떤 영향을 주는지 효능을 측정하였다. 연구 결과 침과 뜸이 인지능력의 개선에 긍정적이 효과가 있다는 것을 HRV 분석을 통해 확인할 수 있었다.

• Physical Therapy Rehabilitation Science
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• 제10권4호
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• pp.493-502
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• 2021

Objective: Older adults with mild cognitive impairment (MCI) are more likely to progress to dementia. Motor-cognitive training is applied as a dual-task to improve the cognitive and physical functions of older adults with MCI. The purpose of the study was to know the recent trends in motor training types and outcome measures used for motor-cognitive training in older adults with MCI. Design: Aliterature review Methods: This literature review was conducted in Pubmed, MEDLINE® and Google Scholar with the following key words: older adults, mild cognitive impairment, motor-cognitive training, cognition, and dual-task. The 7 studies were found with the search tool and all studies were randomized controlled trials. Results: In motor-cognitive training in older adults with MCI, 6 studies applied aerobic exercise. And 3 out of 6 studies also applied strengthening exercises. One study applied dual tasks without aerobic exercise. In the 6 studies, overall cognitive and executive function were used as outcome measures, and physical function was evaluated as gait performance. Memory and physical frailty were also used as measurement tools. As a result of all studies, when motor-cognitive training was applied, cognition and physical performance showed significant results. Conclusions: A recent five-year study applied mainly aerobic exercise and strength training to older adults with MCI and found it to improve cognitive and physical performance.

• International journal of advanced smart convergence
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• 제12권2호
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• pp.159-166
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• 2023

Due to the aging workforce in the construction industry in South Korea, the accident rate has been increasing. The cognitive abilities of older workers are closely related to both safety incidents and labor productivity. Therefore, there is a need to improve cognitive abilities through personalized training based on cognitive assessment results, using cognitive training content, in order to enable safe performance in labor-intensive environments. The provided cognitive training content includes concentration, memory, oreintation, attention, and executive functions. Difficulty levels were applied to each content to enhance user engagement and interest. To stimulate interest and encourage active participation of the participants, the difficulty level was automatically adjusted based on feedback from the MMSE-DS results and content measurement data. Based on the accumulated data, individual training scenarios have been set differently to intensively improve insufficient cognitive skills, and cognitive training programs will be developed to reduce safety accidents at construction sites through measured data and research. Through such simple cognitive training, it is expected that the reduction of accidents in the aging construction workforce can lead to a decrease in the social costs associated with prolonged construction periods caused by accidents.