• Title/Summary/Keyword: Cognitive science

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Impact of Picture and Reading Mode on Cognitive Load and Galvanic Skin Response (그림 자료의 제시여부와 읽기모드에 따른 인지부하와 GSR의 차이)

  • Ryu, Jee-Heon
    • Science of Emotion and Sensibility
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    • v.13 no.1
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    • pp.21-32
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    • 2010
  • This study investigated the effects of contiguity and reading mode on cognitive load factors measured by Galvanic Skin Response(GSR). In this study two experimental conditions were imposed to participants to measure cognitive load with the high contiguity picture and low contiguity picture. Thirty-four college students participated to this experiment(experiment group=17, control group=17), and spilt-plot factorial design was applied to control individual difference in galvanic skin response. Tasks of this experiment were reading and summary. The dependent variables were skin conductance response, and perceived difficulty. The independent variables were the degree of contiguity of visual material(high contiguity vs. low contiguity). The major result of this study was identification of a significant difference of GSR with low contiguity condition. Indeed it was identified that more complex reading condition required more cognitive loads. This finding supported that different cognitive process might require different amounts of cognitive loads. For the further research, this study discussed the validity of applying physiological signals to assess cognitive loads and relationships the associated affective reactions.

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Relationships Among Cognitive Functions, Activities of Daily Living, Participation and Quality of Life in Community-dwelling Elderly (지역사회 거주 노인의 인지기능, 일상생활활동, 참여 및 삶의 질의 관계)

  • Choi, Yoo-Im
    • Therapeutic Science for Rehabilitation
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    • v.9 no.4
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    • pp.45-54
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    • 2020
  • Objective : The purpose of this study was to identify the relationships among cognitive function, activities of daily living (ADL), participation and quality of life in community-dwelling elderly. Methods : Cognitive function, ADL, participation and quality of life were assessed in the 144 elderly people residing in the community. We used MMSE-K for measuring cognitive function, K-ADL for ADL, K-ACS for participation, and GQOL for quality of life. Results : Cognitive function was significantly correlated with social activity of participation and quality of life (physical health, psychological health, social relations and economic level). ADL was significantly correlated with participation (instrumental ADL, leisure activity) and all sub-areas of quality of life. Social activity of participation were significantly correlated with all subarea of quality of life except physical health. Among the variables, the most relevant variable was leisure activity. Conclusion : It was related to quality of life in the order of participation, ADL, and cognitive function. Among the sub-areas of participation, leisure activity was the most correlated with quality of life. This study, thus, aimed to provide basic data for successful elderly life by examining the correlation between cognitive function, daily life activity, participation and quality of life in community-dwelling elderly.

Serum 25-hydroxyvitamin D and cognitive function in Korean older adults living in rural area (농촌 지역에 거주하는 한국 노인의 혈청 비타민 D 농도와 인지기능과의 상관성)

  • Shin, Ye Som;Choi, Bo Youl;Kim, Mi Kyung;Yang, Yoon Jung
    • Journal of Nutrition and Health
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    • v.52 no.5
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    • pp.465-474
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    • 2019
  • Purpose: This study examined the association between the serum 25-hydroxyvitamin D concentration and the cognitive functions in Korean elderly. Methods: The subjects were 393 adults aged 60 years or older who participated in the Yangpyeong cohort between July 2009 and August 2010. The subjects were classified into deficiency, insufficiency, or adequacy groups according to the serum 25-hydroxyvitamin D concentration diagnostic criteria suggested by the US Institute of Medicine (IOM). The cognitive function was assessed based on the Korean version of the Mini-Mental State Examination (MMSE-KC). The dietary intake was assessed using the quantitative food frequency questionnaire with 106 food items. Results: The proportions of deficiency, insufficiency, or adequacy in serum 25-hydroxyvitamin D were 6.6%, 44.5%, and 48.9%, respectively. The serum 25-hydroxyvitamin D concentration was significantly higher in men than in women and in outdoor workers than in other occupations. The adequacy group had higher MMSE-KC scores than the other two groups, but not to a significant degree. The proportion of cognitive impairment tended to decrease with increasing serum vitamin D concentration to deficiency, insufficiency, and adequacy (p for trend = 0.029). The deficiency group had a 2.28 times higher risk of cognitive impairment than the adequacy group, but the difference was not statistically significant (OR, 2.28; 95% CI, 0.18 ~ 1.07, p for trend = 0.119). Conclusion: The serum vitamin D concentration tended to be associated with the cognitive function in elderly Koreans living in rural areas. To confirm the associations, further longitudinal studies with large samples were required.

Application of Cognitive Enhancement Protocol Based on Information & Communication Technology Program to Improve Cognitive Level of Older Adults Residents in Small-Sized City Community: A Pilot Study (중소도시 지역사회 거주 노인의 치매예방을 위한 Information & Communication Technology 프로그램 기반 인지향상 프로토콜 적용: 파일럿(Pilot) 연구)

  • Yun, Sohyeon;Lee, Hamin;Kim, Mi Kyeong;Park, Hae Yean
    • Therapeutic Science for Rehabilitation
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    • v.12 no.2
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    • pp.69-83
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    • 2023
  • Objective : This study, as a preliminary study, applied an Information & Communication Technology (ICT) home-based program to elderly people aged 65 years or older to confirm the effect of the cognitive enhancement program and to find the possibility of remote rehabilitation. Methods : This study from August to October 2022, three subjects were selected and the intervention was conducted for about 2 months. This intervention was conducted using Korean version of Mini-Mental State Examination, Korean version of Montreal Cognitive Assessment (MoCA-K), Computer Cognitive Senior Assessment System, and the Center for Epidemiologic Studies Depression scale to evaluate cognitive improvement before and after the program. The therapist remotely set the level of cognitive training according to the subject's level through weekly feedback. Results : After the intervention, all subjects showed improved scores in most items of the MoCA-K conducted before and after the intervention. In addition, among the items of Cotras-pro, upper cognition, language ability, attention, visual perception, and memory were improved. Conclusion : Cognitive rehabilitation training using an ICT home-based program not only prevented dementia but also made it habitual. Through this study, it was confirmed that remote rehabilitation for the elderly could be possible.

Investigating the Implications of the Connectionist Views of the Concept in Conceptual Learning of Science (연결주의 개념관이 과학 개념학습에 주는 시사점 고찰)

  • 정용재;송진웅
    • Journal of Korean Elementary Science Education
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    • v.23 no.3
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    • pp.251-265
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    • 2004
  • Conceptual teaming has been one of the important issue in science education, and its theory and method has been interacted with the studies of philosophy of science, cognitive science, and cognitive psychology. The last two decades have witnessed a remarkable growth of the study on brain-style computation, i.e. connectionism. This study aimed to investigate the properties of the connectionist views of the concept and its implications in the conceptual learning of science. In connectionist views, a concept was represented as a pattern of activity distributed over many connected units, and a kind of network composed of many sub-concept units. And the 'distributed representation' had the features of the constructivity, the automatically generalization, and the tunability. On the base of these views, it was suggested that (ⅰ) 'Typically-Perceived-Situation', a kind of mental representation rising spontaneously in an individual mind when someone is thinking about any object, should be highlighted, and (ⅱ) the roles of the sub-concept units in formation of concept and the resolution of concept into the sub-concept units should be highlighted. Finally the meanings of these implications in conceptual teaming of science are discussed.

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Experiences of Changes in Cognitive Function for Women treated with Chemotherapy for Breast Cancer (항암화학요법을 받은 유방암 여성의 인지기능변화 경험)

  • Chung, Bok-Yae;Byun, Hye-Sun;Kim, Gyung-Duck;Kim, Kyung-Hae;Choi, Eun-Hee
    • Women's Health Nursing
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    • v.18 no.1
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    • pp.1-16
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    • 2012
  • Purpose: The purpose of this study was to describe the experiences of the process of the change in cognitive function for women treated with chemotherapy for breast cancer. Methods: There were ten participants in total in this study. Data were gathered utilizing in-depth interviews over 3 times from September 2010 to January 2011. Data were analyzed by employing Strauss and Corbin's (1998) grounded theory methodology. Results: Findings indicate that causal conditions of these results were 'side effects of chemotherapy' and 'menopausal state', including contextual conditions as, 'mental fatigue' and 'anxiety about recurrence'. The core category was identified as 'confronting with unexpected chaos'. Intervening conditions were 'support from other people', 'lack of information on cognitive impairment'. Interaction strategies were 'changing the habit of life', 'making efforts for living life' and 'seeking for medical information'. Consequences of the process were 'physical restriction', 'difficulty in social life', 'disturbed working ability' and 'psychological distress'. Conclusion: The results of this study show that nurses should recognize there is a notable difference between individual patient's contextual conditions and interactive strategies. Furthermore educational information and individualized intervention should be provided to improve cognitive function for women with breast cancer.

A Suggestion of Cognitive Model of Scientific Creativity (CMSC) (과학적 창의성 모델의 제안 -인지적 측면을 중심으로-)

  • Park, Jong-Won
    • Journal of The Korean Association For Science Education
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    • v.24 no.2
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    • pp.375-386
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    • 2004
  • Creative thinking alone can not lead to scientific creativity. Scientific knowledge and scientific inquiry skills are needed for scientific creativity. Focused only on cognitive aspect, I suggested a cognitive model of scientific creativity (CMSC) consisting of 3 components: thinking for scientific creativity, scientific knowledge contents, and scientific inquiry skills. Recently, many researchers have emphasized the various thinking for creativity as well as divergent thinking. Therefore, I suggested three types of creative thinking - divergent thinking, convergent thinking, and associational thinking - and discussed its rationale. Based on this model, an example of activity material for the scientific creativity was suggested. In the further research, based on CMSC, various activity types related to scientific creativity and concrete learning materials for scientific creativity will be developed.

Elementary School Children's Alternative Conceptual Types and Change After Conflict Situations on the Movement of the Moon (달의 운동에 관한 초등학생들의 대안개념 및 인지갈등 상황 후 변화)

  • Lim, Cheong-Hwan;Kim, Hye Jin
    • Journal of The Korean Association For Science Education
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    • v.30 no.8
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    • pp.1110-1122
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    • 2010
  • The purpose of this study was to identify elementary school students' alternative conceptual types of the movement of the moon and to find out how these types change when confronted with cognitive conflict situations. To find out alternative conceptual types, 206 sixth graders were sampled, and to investigate how the alternative conceptual types were changed by cognitive conflict situations, and 30 students were systematically resampled by alternative conceptual types. Data were collected through the pre- and post-test instruments, including five items that were used for testing the students' alternative conceptual types and changes after conflict situations. After the pre-test, students were instructed to determine the change of the alternative preconceptions using conflict situations. We found that a majority of students had various kinds of alternative preconceptions formed from their early years of elementary school. The cognitive conflict situations were effective for the conceptual change of the movement of the moon. Specifically, in all groups, the subjects' understanding of "the movement of the early evening crescent moon" changed scientifically.

An Integrative Review of Cognitive Behavioral Therapy for Patients with Alcohol Use Disorder (알코올 사용장애 환자를 대상으로 시행된 인지행동치료에 대한 연구의 통합적 문헌고찰)

  • Ryu, Soim;Gwon, Taekyun;Noh, Eunyoung;Kim, Yuna
    • Perspectives in Nursing Science
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    • v.15 no.1
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    • pp.29-40
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    • 2018
  • Purpose: The present study aimed to review the characteristics of cognitive behavioral therapy (CBT) programs for alcohol use disorders and to examine the outcomes of such programs. Methods: We searched for domestic and foreign studies that implemented a CBT program for alcohol use disorders, published from 2006 to 2017. Studies that met inclusion/exclusion criteria were selected and a quality assessment was performed using the Risk of Bias (RoB) and Risk of Bias Assessment Tool for Nonrandomized Studies (RoBANS) instruments. We utilized a five-stage analysis process, through which nine experimental studies were selected. Results: Of these nine studies, four were randomized controlled trials, four used a quasi-experimental design, and one used a qualitative design. The CBT involved the three domains of cognitive reconstruction, problem solving, and coping. Coping with drinking situations and communication constituted most of the sessions. The outcomes of such interventions showed that CBT had a positive effect on alcohol use and self-evaluation. Conclusion: CBT is an effective way to change alcohol use behaviors, motivation, interpersonal relationships, emotional control, and self-efficacy among patients with alcohol use disorders. This study provides evidence for the effectiveness of CBT-based programs for the treatment of alcohol use disorders.

A Social Approach as a Metatheory to Understand Everyday Information Practices of the Disadvantaged (사회 취약계층의 일상적 정보행태 연구를 위한 메타이론: 사회적 접근법)

  • Koo, Joung Hwa
    • Journal of the Korean BIBLIA Society for library and Information Science
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    • v.27 no.1
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    • pp.313-336
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    • 2016
  • The study reviews theoretical and empirical research literature in information needs, seeking and uses in order to search for the most pertinent metatheories for studying information practices of the disadvantaged. The study examines the salient features and main theories/models of each cognitive, affective and social approach in the user-centered paradigm through analyzing prior information practices studies. While analyzing the main features of each cognitive, affective and social approach, the study points out the limitation of research using the cognitive and affective approaches to fail to theorize the relationship between individuals and complex and dynamic socio-cultural contexts in information practices. As an alternative, the study suggests using the social approach as a pertinent metatheory for understanding information practices of the disadvantaged who are entangled with myriad social contexts and issues. In order to verify the pertinence, the study examines the advantages of the social approach through analyzing both the main models related to everyday information practices under social constructionism and the main findings from information practices of the disadvantaged.