• Title/Summary/Keyword: cognition ability

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An fMRI study on verbal cognition ability due to oxygen administration (외부의 산소 공급에 따른 언어 능력 변화에 대한 뇌기능 연구)

  • 김익현;정순철;김승철;손진훈
    • Proceedings of the Korean Society for Emotion and Sensibility Conference
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    • 2003.11a
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    • pp.1111-1115
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    • 2003
  • 본 연구에서는 일반 공기 중의 산소 농도(21%) 환경에 비해 외부에서 고 농도(30%)의 산소 공급이 인지 능력 중 특히 언어 능력에 어떠한 변화를 유발하는지 관찰하고자 한다. 9명의 오른 손잡이 남자 대학생을 본 연구의 실험 참여자로 선정하였다. 21%와 30% 산소 농도를 각각 8L/min의 양으로 일정하게 공급할 수 있는 장치를 개발하여, 마스크를 통하여 실험 참여자에게 전달하면서 언어 과제를 수행하게 하였다. 동시에 3T MRI를 이용하여 뇌기능 영상을 획득하였다. 언어 능력 측정을 위해 28 문항을 포함하는 두 개의 문제지를 제작하였고, 과제 수행 결과로부터 정답률을 산출하였다. 21%에 비해 30% 산소 농도에서 평균 정답률은 유의미한 증가를 하였고, 뇌 활성화 양도 증가하였다. 본 연구의 결과로부터 외부에서의 고농도의 산소 공급이 언어 능력 증가에 긍정적인 영향을 미친다는 결론을 도출할 수 있다.

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Research for The cognitive Properties of Zombie Game Character (게임상의 Zombie Character 인지속성에 관한 연구)

  • LI, JinJun;Cho, Dong-Min
    • Journal of Korea Multimedia Society
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    • v.24 no.5
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    • pp.717-726
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    • 2021
  • The zombies in AVG games are not divided into different game occupations. To address this issue, this paper starts by selecting those popular zombie games as the research object. Then, a number of samples will be collected from the roles of zombie and these different roles of zombie will be classified by profession depending on the characteristics of these roles. On this basis, the roles will be given a new title to describe their profession. Then, semantic analysis will be conducted to search for the words that can be used to describe the roles of zombie. Besides, there will be 10 experts in design and 10 professional zombie game players invited to choose from the collected adjectives. The most selected words will be used in this study to conduct cognition assessment, before the making of questionnaire. Then, the questionnaire data will be collected and converted into a statistical model form for indicating the value of ability by group and profession.

Problem-solving ability of dental hygiene students in accordance by meta-cognition level (치위생과 학생의 메타인지수준과 문제해결능력)

  • Jun, Soo Kyung;Lee, Seong-Sook;Kim, Dong Ae
    • Journal of Korean society of Dental Hygiene
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    • v.14 no.5
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    • pp.667-672
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    • 2014
  • Objectives : The purpose of this study was to examine classifying the level and accuracy of the meta-cognitive level of students and dental hygiene, and to understand the impact on the process of problem solving and accordingly, it is intended to provide a basis for learning strategies. Methods : A self-reported questionnaire was filled out by 328 dental hygiene students in 3 colleges in Gyeonggi-do and Chungnam. Data were analyzed by the frequency analysis, one-way ANOVA, Scheffe's post-hoc test, Pearson's correlation coefficient using SPSS 12.0. Results : Meta-cognitive level of the subject was on average 4.43 points and problem solving level was lower at 2.82 points. Showed a significant difference in satisfaction with the major motives meta-cognitive level in accordance with the general characteristics of the subjects(p<0.05). Results of this study showed that no statistically significant differences in both the sub-areas of the level of problem solving according to the general characteristics of the subject(p>0.05). There was no correlation between the ability to solve problems and meta-cognitive level of the subjects(p>0.05). Conclusions : The finding of the study showed that meta-perception of dental hygiene students are lower the level of problem-solving that is compared to meta-cognition. It is suggested that development of a variety of learning methods for improving meta-cognitive thinking and problem-solving skills required in dental hygiene school curriculum.

The Development of Teaching-learning Materials based on Real life and the Investigation of Students's cognition change about Mathematics class using Developed materials (실생활 중심의 교수-학습 자료 개발과 이를 활용한 수학 수업에 대한 학생들의 인식 변화 고찰)

  • Lee, Shin-Deuk;Kwean, Hyuk-Jin
    • Journal of the Korean School Mathematics Society
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    • v.10 no.1
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    • pp.45-69
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    • 2007
  • In the 21st century, knowledge-based and information-based society requires not just the capability of applying mathematics simply but mathematical power such as problem-solving ability which composes and solves problems using mathematical knowledge in real-life and fields of various subjects. However, to develop mathematical power, we need various teaching and learning methods which raise basic mathematical knowledge, the inference capability, problem- solving ability, the flexibility of thinking, the expressing and transforming ability of mathematical ideas, perseverance, interest, intellectual curiosity, and creativity. In this paper, we develop the teaching-learning plans based on real life using the various methods of learning and then we analyze the change of students's cognition of mathematics and the students's reaction of the class.

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Effect of the Virtual Reality Cognitive Rehabilitation Program on Cognition Ability and Activities of Daily Living in Patients with Mild Cognitive Impairment (가상현실 인지재활 프로그램이 경도인지장애 환자의 인지능력과 일상생활동작에 미치는 영향)

  • Kang, Hyeok-Jun;Kim, Sang-Ryul;Kim, Jeong-Heon;Song, Dae-Heon;Yang, Ji-Eun;Chu, Mi-Ran;Lee, Hyun-Min
    • Journal of the Korean Society of Physical Medicine
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    • v.15 no.4
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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.

The Introduction of Western Medicine and The Change of Body Conception (서양 의학의 수용과 신체관의 변화 - 최한기의 『신기천험(身機踐驗)』을 중심으로 -)

  • Kim, Moon-Yong
    • (The)Study of the Eastern Classic
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    • no.37
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    • pp.345-375
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    • 2009
  • In relation to body conception, the introduction of western medicine to Joseon Korea started off some points in disputes: the one was whether the western anatomy was positive or not, the other was whether the cognition was ruled by heart or brain. In the long run of these disputes, that who had clarified the change of body conception was Choi Han Kee. His new conception of body was characterized as follow: on the one hand, it emphasized the mechanical conception of body; on the other hand, it emphasized the cognitive ability of body. But that his conception of body had obscure points: that is, its mechanical conception was intervened by chi(神氣), and his doctrine of cognition searched for the origin of cognition in balance of chi of the body. He had set up this conception of body by the combination of western medicine and chi, but the combination did not seem to be perfect. This point had appeared again in his conception of physics that he thought the basis of medicine. He had pursed the combination of chemical element and chi, but it could not be accomplished successfully unless he had abandoned the organicist conception of chi. In conclusion, his new conception of body was not free from the suspicion of a incomplete tentative construction.

Cognition of Elementary School Student to Teaching Method and Management of Physical Education (교사의 체육수업지도에 따른 초등학생의 인식)

  • Hwang, Sun-Hee;Park, Ik-Ryeul
    • The Journal of the Korea Contents Association
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    • v.8 no.12
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    • pp.449-456
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    • 2008
  • The purpose of this study was to study the student cognition toward the subject of physical education and toward the method of teaching in the class. For the statistical measurement, the population has been chosen as the fifth and sixth grade 319 students(160 male; 159 female) from four different elementary schools in Seoul, Korea. In terms of the teaching method and management of students, the results show that they agree with controlled participation in class and appreciate teachers ability such as explanation, skill demonstration, knowledge, evaluation, maintaining order and participating class. However, there were no statistical difference male and female except for teacher's explanation. This study clearly indicates that the students want more affirmative and cooperative class environment and they expect to be evaluated not only by skill itself, but also by class participation and activity in their physical education class. The cognition and preference toward the class between male and female students did not show any difference in this study. After all, Teachers need to have more understanding, more compassion and more sensitivity towards their elementary students for interesting, effective and affirmative class.

A Learning-Flow Model Supporting Distributed Cognition in IT Education (IT교육에서 분산인지를 지원하는 학습몰입모형)

  • Kim, Sung-Ki;Bae, Ji-Hye
    • Convergence Security Journal
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    • v.12 no.6
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    • pp.51-59
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    • 2012
  • This paper presents a new learning model, "BoX(Battle of X)", which is based on a concept from the culture of B-Boys who enjoy the race of "distributed cognition" to win in their contests. The "battle" means a contest and "X" means a course to which our learning model can be applied. The goal of this paper is to present a learning model that allow students to be in a state of learning-flow and provides them with the ability of creative problem solving simultaneously. The key of the "BoX" implementation is to design a principle that controls contests between students to maximize distributed cognitive activities for reducing individual's cognitive load. This paper also presents how-to of "BoX" implementation and its effects. Through the analysis on learning achievement of students during one year course of IT education, we have confirmed that the "BoX" model provides students with higher learning achievement and learning-flow level in comparison with traditional learning model.

A Study on the Effect of Digital Literacy in the Elderly on Critical Thinking Disposition: Focused on the Moderating Effect of Need for Cognition (노인의 디지털 리터러시가 정보의 비판적 수용에 미치는 영향: 인지욕구의 조절효과를 중심으로)

  • Jang, Hye-Yoon
    • Journal of Industrial Convergence
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    • v.20 no.6
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    • pp.17-25
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    • 2022
  • As social problems related to the digital divide are increasing, the elderly are facing various problems as an information alienated group. In particular, there is a need to strengthen the ability to critically understand and accept information. In this study, using the 2020 media panel survey, the effects of digital literacy in the elderly on critical thinking disposition of information were analyzed, focusing on the moderating effect of need for cognition. As a results of the analysis, it was confirmed that the operational and the information skill had a positive effect on the critical thinking disposition of information. Also, as a result of analyzing the moderating effect of NFC(Need for Cognition), it was found that NFC strengthens the influence of operational skill and reduces the influence of information skill. This suggests that the digital literacy education for the elderly needs to change from strengthening accessibility to improving information judgment.

A Study on Visuospatial Cognitive Performance Following Oxygen Administration using fMRI (뇌기능 영상을 이용한 외부 산소 공급에 따른 공간 지각 능력 변화에 관한 연구)

  • 정순철;김익현;이봉수;이정미;손진훈;김승철
    • Journal of Biomedical Engineering Research
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    • v.24 no.4
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    • pp.267-273
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    • 2003
  • The present study attempted to observe what changes the supply of highly concentrated (30%) oxygen cause to people's ability of visuospatial cognition, compared to air of normal oxygen concentration (21%). This study sampled eight male university students (the average age : 23.5) as subjects for functional Magnetic Resonance Imaging (MRI) study It also developed equipment that supplies 21% and 30% oxygen) at a constant rate of 8L/min. Two questionnaires containing 20 questions were developed to measure the ability of visuospatial cognition, and accuracy was calculated from the result of task performance. The experiment paradigm consisted of the run conducting tasks at 30%'s concentration of oxygen and another run at 21%'s concentration of oxygen. Each run was composed of four blocks and each block included eight control tasks and five visuospatial taks. 3T MRI was used and fMRI was obtained through the single-shot EPI method. The activation in the occipital-associated area, bilateral superior parietal lobes, bilateral inferior parietal lobes. bilateral precuneus, bilateral postcentral gyri, bilateral middle frontal gyri, bilateral inferior frontal gyri, bilateral medial frontal gyri, bilateral superior frontal gyri, bilateral cingulate gyri was significantly increased at the 30%'s concentration of oxygen rather than 21%'s. Furthermore, the result of task performance showed the accuracy increased at 30%'s concentration of oxygen rather than 21%'s. From the result of this study, it is concluded that the supply of highly concentrated oxygen has a positive effect on the ability of visuospatial cognition.