• Journal of Korea Game Society
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• v.7 no.2
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• pp.73-82
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• 2007

This study deals with how computer game affects spatial-temporal capability of game users. Focusing on college students, this study shows almost the same results as 'Mozart effect' by Gordon Shaw's previously famous study for music on spatial-temporal capability. Additionally, in comparison to music and animation, on-line racing game has more positive influence on a specific spatial-temporal capability.

• Proceedings of the Korea Information Processing Society Conference
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• 2023.11a
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• pp.735-736
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• 2023

높은 몰입감과 실재감을 제공하는 XR 기술이 고령자들의 인지능력, 주의력, 시각적 기억력에 긍정적인 영향을 주는 것으로 나타나며 노인의 건강과 삶의 질을 향상시키기 위한 기술로 많은 관심을 받고 있다. 본 연구는 인지기능 향상을 위한 XR 융합훈련프로그램에 사용될 콘텐츠 저작 시 젊은이와 노령층의 디지털 격차, 선호도의 차이, 노화에 따른 신체·인지능력의 저하 등 고려해야 할 이슈를 소개하고, 문제를 해소할 수 있는 XR 콘텐츠 저작도구를 제안한다.

• Journal of the Korea Academia-Industrial cooperation Society
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• v.21 no.5
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• pp.303-311
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• 2020

This study examines the effects of children's play activities through forest experience on their parents' expectation and multiple intelligence improvement. To achieve this, an empirical survey was conducted by applying a structural equation model to 152 parents with children. As a result, first, physical and cognitive factors were adopted, and social factors were rejected in the factors that influence the physical, social, and cognitive factors of children's forest experience play activities on parents' expectation of children's safety activities and concern about fine dust. Second, their physical, social and cognitive factors affected their sociality among sub-factors of multiple intelligence improvement. Their social and cognitive spontaneities significantly affected their sensitivity and creativity improvements. Third, parents' expectation did not appear to play a significant mediating role in the effect of play activity through forest experience on multiple intelligence improvement. This study has confirmed that their physical and cognitive factors of play activities through forest experience are directly affected by their parents' concern about fine dust and expectation of their safe activities, and has suggested that their sociality can be thoroughly learned through various educational programs in daycare centers, which is somewhat far from their parents' expectation of their play activities through forest experience.

• Journal of Korea Entertainment Industry Association
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• v.13 no.7
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• pp.521-529
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• 2019

The purpose of this study was to examine the effects of customized cognitive stimulation therapy on cognition, depression, and activities of daily living in elderly with dementia in the community. The program consisted of 7 sessions, 50 minutes once a week, from March 4 to April 26, 2019. As a result, customized cognitive stimulation therapy improved the overall cognitive function, and it also increased the level of independence in the daily living and reduced the depression of the experimental group. It also showed significant differences in cognitive function when compared with control group. Therefore, the customized cognitive stimulation therapy of this study was to grasp the cognitive function of the elderly with dementia and present the cognitive tasks to the subjects for selection that induced interest and proved to be effective. Afterward, the activities were organized by difficulty according to the level of cognitive function for each session, leading to the improvement of cognitive function. Additionally, the subjects were experienced success by participating actively and continually in the activities selected with interest. Through this, it was thought to have a positive effect on the spontaneity of activities of daily living and decrease depression.

• Korean Journal of Cognitive Science
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• v.29 no.1
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• pp.61-84
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• 2018

This paper aims to examine the philosophical significance of neuroethics and its unique position within the cognitive paradigm, and to discuss major issues of neuroethics. Recent advances in neuroscience enable more direct access and intervention to human mind, which reduces the distinction between matter and mind and brings up new philosophical questions on human nature. Neuroethics takes interdisciplinary and integrative approach, in order to deal with the ethical issues related to new findings and technology of neuroscience that cannot be covered by the traditional legal and social systems. Some of the ethical issues of neuroscience overlap with the classical bioethics problems but majority of major issues are unique to neuroethics. These issues are mainly related to mind reading through the observation and decoding of brain activities and to cognitive enhancement through directly manipulating brain functions. Considering the current status and trends of Korean neuroscientific research, it is necessary to begin in-depth discussion of neuroethical issues with the collaboration among experts in related fields.

• Journal of Broadcast Engineering
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• v.17 no.2
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• pp.223-236
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• 2012

We develop a video processing method that allows the more advanced human perception oriented video coding. The proposed method necessarily reflects all influences by the rate-distortion based optimization and the human visual perception that is affected by the visual saliency, the limited space-time resolution and the regional moving history. For reflecting the human perceptual effects, we devise an online moving pattern classifier using the Hedge algorithm. Then, we embed the existing visual saliency into the proposed moving patterns so as to establish a human visual perception model. In order to realize the proposed human visual perception model, we extend the conventional foveation filtering method. Compared to the conventional foveation filter only smoothing less stimulus video signals, the developed foveation filter can locally smooth and enhance signals according to the human visual perception without causing any artifacts. Due to signal enhancement, the developed foveation filter more efficiently transfers the bandwidth saved at smoothed signals to the enhanced signals. Performance evaluation verifies that the proposed video processing method satisfies the overall video quality, while improving the perceptual quality by 12%~44%.

• Journal of the Institute of Electronics Engineers of Korea CI
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• v.45 no.5
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• pp.8-14
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• 2008

There are two a approaches for the Cognitive Radio(CR) development. One is 'Full CR', which Joseph Mitola III proposed, and another is 'Spectrum CR', which is currently being standardized. The target approach of this paper is the latter and we develop a Cognitive Engine(CE) and simulated a channel set management(CSM), which is a core function of CE. The Channel set management evaluates channel quality and Incumbent User(IU) vacancy possibility and classifies the channel set, which is performed by using channel state history. Especially, a very important function for the channel set management is a channel state prediction and this paper proposed a Hidden Markov Model(HMM) based channel state prediction and a method for increasing performance. Also, we applied the proposed method into our simulator and simulated channel state prediction. Through the simulation, we verified as we applied our proposed scheme, the performance of channel state prediction gets better and through comparing with RS and SS, we verified the HMM based Channel state prediction is better.

• The Journal of Korean Academy of Sensory Integration
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• v.21 no.2
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• pp.1-11
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• 2023

Objective : The purpose of this study was to investigate the effects of computerized cognitive rehabilitation on the attention of children with autism spectrum disorder (ASD). Methods : A multiple-baseline design was used in combination with a single-subject experimental research design. A total of 15 sessions were conducted three times a week, each lasting for 30 minutes. The maintenance and selective attention tests in the attention area of the computerized cognitive rehabilitation program were evaluated in random order after each session was completed. To evaluate the participants' selective attention, star cancellation tests was performed as pre- and post-tests. Results : After the computerized cognitive rehabilitation intervention, the accuracy of the participants' attention improved in terms of the maintenance and selective attention tests. In the analysis involving the two standard deviation bands, participants 1 and 2 showed a significant improvement, whereas participant 3 did not show a significant improvement, although the average value improved. Conclusion : The results of this study confirmed that cognitive rehabilitation involving a computerized cognitive rehabilitation program had a positive effect on the attention of three children with ASD.

• The Proceeding of the Korean Institute of Electromagnetic Engineering and Science
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• v.24 no.5
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• pp.73-82
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• 2013

최근 차량 네트워크(VANET)는 차량 및 도로 안전에 관한 정보와 다양한 인포테인먼트 서비스 증가로, 기존 차량 통신에 고정적으로 할당된 주파수로는 요구되어지는 주파수 수요량을 충족하지 못할 것으로 예측된다. 이에 따라, 인지 무선(CR) 기술을 VANET 환경의 특징에 적합하게 적용함으로써, 동적인 주파수 사용으로 주파수의 활용도를 향상시키기 위한 연구가 큰 관심을 받고 있다. 본 고에서는 인지 무선을 이용한 차간 통신 이슈 및 연구 동향을 소개한다.

• Proceedings of the Korea Contents Association Conference
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• 2018.05a
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• pp.407-408
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• 2018

본 연구는 여성노인을 대상으로 안구운동 훈련을 적용하여 인지기능에 어떠한 영향을 미치는지 알아보고자 하였다. 대상자는 65세 이상 여성 노인 8명을 선정하였고 안구운동은 급속안구운동을 4주 동안 적용하여 사건관련 전위 중 P300을 활용하여 그 변화를 측정하였다. 그 결과 p300의 전위값은 유의하게 상승하였고, 잠복기는 유의하게 짧아졌다. 결론적으로 여성노인에게 적용한 급성안구운동은 뇌의 긍정적 변화를 나타내 인지기능 향상에 영향을 준다는 것을 알 수 있었다.