• Title/Summary/Keyword: Cognitive response

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Wogonin Attenuates Hippocampal Neuronal Loss and Cognitive Dysfunction in Trimethyltin-Intoxicated Rats

  • Lee, Bombi;Sur, Bongjun;Cho, Seong-Guk;Yeom, Mijung;Shim, Insop;Lee, Hyejung;Hahm, Dae-Hyun
    • Biomolecules & Therapeutics
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    • v.24 no.3
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    • pp.328-337
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    • 2016
  • We examined whether wogonin (WO) improved hippocampal neuronal activity, behavioral alterations and cognitive impairment, in rats induced by administration of trimethyltin (TMT), an organotin compound that is neurotoxic to these animals. The ability of WO to improve cognitive efficacy in the TMT-induced neurodegenerative rats was investigated using a passive avoidance test, and the Morris water maze test, and using immunohistochemistry to detect components of the acetylcholinergic system, brain-derived neurotrophic factor (BDNF), and cAMP-response element-binding protein (CREB) expression. Rats injected with TMT showed impairments in learning and memory and daily administration of WO improved memory function, and reduced aggressive behavior. Administration of WO significantly alleviated the TMT-induced loss of cholinergic immunoreactivity and restored the hippocampal expression levels of BDNF and CREB proteins and their encoding mRNAs to normal levels. These findings suggest that WO might be useful as a new therapy for treatment of various neurodegenerative diseases.

Cognitive Function, Mood, Problematic Behavior and Response to Interaction with Robot Pet by Elders with Dementia (동물로봇과의 상호작용에 따른 치매노인의 인지기능, 기분상태, 문제행동 및 반응의 변화)

  • Lim, Nan-Young;Kang, Hyun-Sook;Park, Young-Sook;Ahn, Dong-Hyun;Oh, Jin-Hwan;Song, Jung-Hee
    • Journal of Korean Academy of Fundamentals of Nursing
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    • v.16 no.2
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    • pp.223-231
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    • 2009
  • Purpose: The purpose of this study was to identify the effects on cognitive function, mood, problematic behaviors and response to interaction with robot pet by elderly people with dementia. Method: A methodological triangulation design with quantitative and qualitative methods was used. The participants were 9 elderly people with dementia. The intervention was conducted twice a week for 4 weeks, Qualitative data were collected by interviews and video-taping for analysis of the responses of participants, Results: 1) Cognitive function, mood and problematic behaviors did not show any significantly differences after the program. 2) Analysis of the responses showed increases in verbal communication and positive action. Conclusion: The robot pet program had positive effects such as increasing communication and interaction. Therefore, this program could be considered as an effective program for emotional support for elderly people with dementia. However further repetitive study is need to validate the result.

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A Preliminary Study on the Development of a Developmental Test for Toddlers and Preschoolers (영유아용 (만 2세~5세) 발달검사 개발을 위한 예비연구)

  • Rhee, Unhai;Park, Juhee;Choi, Hye-Yeong
    • Korean Journal of Child Studies
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    • v.26 no.6
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    • pp.73-88
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    • 2005
  • This study aimed to develop a reliable and valid developmental test for toddlers and preschoolers. A trial form of the test with 230 items in 5 domains(cognitive, physical, language, social, and self-help) was constructed and administered to 200 children from 2 to 5-year-olds. Item analysis indicated that most items selected in cognitive, physical, and indicated domain were acceptable in terms of item response rate and item discrimination. However, some items in social and self-help domain did not show clear age trends in item response, but mostly were adequate in item discrimination. Based on item analysis, 112 items were selected for the final form : 24 items each for the cognitive, physical, and language domain; 20 items each for the social and self-help domain. Reliability indicated by internal consistency coefficients(KR-20) were high in all domains. Validity of the test was supported by inter-correlations among 5 domains(.61 to .93), and significant age differences in domain scores.

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Effect of Self-service Technology Service Quality on Cognitive Response and Purchase Intention in Fashion Retail Store (패션 매장의 셀프 서비스 테크놀로지(SST) 기술 속성이 인지적 반응과 구매의도에 미치는 영향)

  • Kim, Songmee;Lee, Yuri
    • Journal of the Korean Society of Clothing and Textiles
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    • v.43 no.5
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    • pp.634-648
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    • 2019
  • Self-service technologies (SST) are rapidly changing the way customers participate in the purchasing process. Academic literature has focused on the acceptance of SSTs. However, this study explored consumer's cognitive response and purchase intentions through service qualities of SST as well as how they are moderated by technology anxiety and other people's presence based on TAM3. An online survey collected 279 consumer panels. All responses were used for the analysis and analyzed statistically through SPSS 23.0. The results indicate that only enjoyment and control had a significant effect on warmth perception; however, all service qualities had significant effects on competence perception. The perceived warmth and perceived competence partially mediated the relationship between SST service qualities and purchase intention. The moderating effect of technical anxiety was shown to be significant in the relationship between perceived competence and purchase intention. In addition, technology anxiety had a moderating effect on the relationship between competence perception and purchase intention only in a public situation.

A Study on the Impact of Visual Merchandising Cognitive Dimension of Food & Beverage Stores on Consumer Behavior Intention: Focusing on the Mediating Effect of Emotional Response (외식음료매장의 비주얼머천다이징 인지차원이 소비자 행동의도에 미치는 영향: 감정반응 매개효과를 중심으로)

  • Park, Hyoung Kuk;Yang, Dong Woo
    • Asia-Pacific Journal of Business Venturing and Entrepreneurship
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    • v.13 no.5
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    • pp.103-118
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    • 2018
  • This study would provide the basic data informative for establishing a VMD strategy, covering design and marketing for business owners and prospective entrepreneurs, including the persons concerned with the food and beverage industries by investigating the relationships of the impacts of several factors in the cognitive dimension factors of VMD in food and beverage stores on consumers' emotional response and behavior intention and the mediating effect of emotional responses, applying the concept of VMD to the food and beverage industries. To check this research purpose, data were collected through a survey, conducted with various consumers in their 20s through 60s who have experienced the use of food and beverage stores. The period of the survey was from September 20 through October 10, 2017, 202 copies of questionnaires were collected without missing values and used as data for the final analysis. As for the analysis of the data, using SPSS statistical software, frequency analysis and descriptive statistics, analysis of reliability and validity, correlation analysis, single and multiple regression analysis were conducted. According to the results of this study, first, the relationship of the impact between the VMD cognitive dimension of food and beverage stores and customers' emotional responses was statistically significant. In concrete, all factors of VMD cognitive dimension, including the factors of suitability and daily escape had positive (+) impacts on positive emotions. Second, as a result of an analysis of the impact of emotional responses felt in the process of visiting the food and beverage stores on customers' behavior intention, it turned out that positive emotions had a positive (+) impacts on visit intention and recommendation intention while negative emotions did not have any impacts on visit intention and recommendation intention. Third, as a result of an analysis of the impact of VMD cognitive dimension on behavior intention, the suitability and balance of the VMD cognitive dimension had positive (+) impacts on visit intention while daily escape and functionality had positive (+) impacts on recommendation intention. Fourth, as a result of checking if emotional responses had a mediating effect in the relationship between the VMD cognitive dimension and behavior intention, positive emotions had a full mediating effect while there was no mediating effect of negative emotions between the VMD cognitive dimension and behavior intention. In conclusion, this study found that the VMD cognitive dimension of food and beverage stores affected consumers' emotional responses and that emotional responses were a factor affecting behavior intention and proved that consumers' emotional responses differed depending on the factors in the cognitive dimension. Thus, in food and beverage stores, it would be necessary to make effective designs of the stores and differentiate the presentation of them through utilizing detailed factors of the cognitive dimension of VMD. Also, the results of this study could be utilized as the appropriate marketing tools for customers in food and beverage stores and as the basic data for establishing the strategy.

A study on physical activities by applying a social cognitive theory (사회인지이론을 적용한 신체활동에 관한 문헌고찰)

  • Han, Eun-Ok;Moon, In-Ok
    • The Journal of Korean Society for School & Community Health Education
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    • v.6
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    • pp.117-126
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    • 2005
  • This study attempted to extract a suggestive point to help the design of a program, which is used to promote physical activities, by applying a social cognitive theory based on literature review on the physical activity based on a social cognitive theory. This study considers 10 journal articles that used a social cognitive theory, physical activity, and exercise as the major variable using the EBSCOhost Academic Search Premier and Educator's Reference Desk (ERIC). The type of papers was analyzed using a certain criterion, which can be configured according to the number of each year's papers, characteristics of research subjects, application type of a social cognitive theory, and classification of the application of objects in a social cognitive theory. The characteristics of each year's papers presented no specific characteristics for each year's papers, but the study in 2004 especially presented a high level. The characteristics of research subjects presented four highest cases in the case of the college student, and there were zero cases for children. The application type of studies on physical activities using a social cognitive theory can be largely classified as three types. The results of the measurement using a sectional investigation for SCT objects were 2 cases, the application of SCT for promoting physical activities was 1 case, and the demonstration of evaluation for the effect of SCT objects presented 8 highest cases. Although the social cognitive theory in the characteristics of the classification of object applications can be classified as 10 objects, there were no cases that used 10 all objects, partial applications of the object were measured in 8 studies, and two cases presented no detailed considerations on the object. Most of studies used a part of the object where the application of self-efficacy were measured by 8 highest cases. In addition, there were no measurements on the situation, observation learning, answer and response, and self-management. The elements of attitude, cognitive activity, self-efficacy, and handicaps among the SCT object were commonly used, and studies that the self-efficacy largely affects on the promotion of physical activities presented the main current.

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A Study on the Effect of Corporate Culture on the Organizational Effectiveness. - Focusing on the Case of A Subway - (기업문화가 조직효과성에 미치는 영향 -A지하철을 중심으로-)

  • Shin Tack-Hyun
    • Journal of the Korean Society for Railway
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    • v.8 no.2
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    • pp.176-181
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    • 2005
  • The purpose of this thesis is, based on the cognitive response of employees, to depict the phenomenon and the pattern of organizational culture in A Subway system, To attain this purpose, several aspects of organizational culture are surveyed through questionaire and analyzed by SPSS. The major findings are . 1) In general, the cognitive response of employees in railway-concerned firms on culture-related aspects is awfully negative. 2) Job satisfaction and involvement in A Subway is highly related to achievement factor in terms of culture. 3) According to the analysis based on four kinds of Job Groups, certain job groups such as drivers and vehicle maintenance are seen as having exceptionally negative attitude towards every aspects of their organization. So, some careful diagnosis and approaches to the symptoms, the causes, and the treatments are urgently needed.

Mouse Gesture Design Based on Mental Model (심성모형 기반의 마우스 제스처 개발)

  • Seo, Hye Kyung
    • Journal of Korean Institute of Industrial Engineers
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    • v.39 no.3
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    • pp.163-171
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    • 2013
  • Various web browsers offer mouse gesture functions because they are convenient input methods. Mouse gestures enable users to move to the previous page or tab without clicking its relevant icon or menu of the web browser. To maximize the efficiency of mouse gestures, they should be designed to match users' mental models. Mental models of human beings are used to make accurate predictions and reactions when certain information has been recognized by humans. This means providing users with appropriate information about mental models will lead to fast understanding and response. A cognitive response test was performed in order to evaluate whether the mouse gestures easily associate with their respective functional meanings or not. After extracting mouse gestures which needed improvement, those were redesigned to reduce cognitive load via sketch maps. The methods presented in this study will be of help for evaluating and designing mouse gestures.

Development of an Evaluation Method for a Driver's Cognitive Workload Using ECG Signal (ECG 기반의 운전자별 인지 부하 평가 방법 개발)

  • Hong, Wongi;Lee, Wonsup;Jung, Kihyo;Lee, Baekhee;Park, Jangwoon;Park, Suwan;Park, Yunsuk;Son, Joonwoo;Park, Seikwon;You, Heecheon
    • Journal of Korean Institute of Industrial Engineers
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    • v.40 no.3
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    • pp.325-332
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    • 2014
  • High cognitive workload decreases a driver's ability of judgement and response in traffic situation and could result in a traffic accident. Electrocardiography (ECG) has been used for evaluation of drivers' cognitive workload; however, individual differences in ECG response corresponding to cognitive workload have not been fully considered. The present study developed an evaluation method of individual driver's cognitive workload based on ECG data, and evaluated its usefulness through an experiment in a driving simulator. The evaluation method developed by the present study determined the optimal ECG evaluation condition for individual participant by analysis of area under the receiver operating characteristic curve (AUC) for various conditions (total number of conditions = 144) in terms of four aspects (ECG measure, window span, update rate, and workload level). AUC analysis on the various conditions showed that the optimal ECG evaluation condition for each participant was significantly different. In addition, the optimal ECG evaluation condition could accurately detect changes in cognitive workload for 47% of the total participants (n = 15). The evaluation method proposed in the present study can be utilized in the evaluation of individual driver's cognitive workload for an intelligent vehicle.