• Title/Summary/Keyword: Cognitive science

Search Result 3,791, Processing Time 0.028 seconds

Group Idea Generation and Simulation (그룹 아이디어 제너레이션을 위한 시뮬레이션 알고리즘의 개발)

  • Jung, J.H.
    • Korean Management Science Review
    • /
    • v.26 no.2
    • /
    • pp.37-59
    • /
    • 2009
  • Electronic brainstorming (EBS) to improve the process and outcomes of group decision making is an artifact of Information Systems legacy. Despite three decades of research with EBS in an effort to become a key resource of organizational performance, its performance when compared to that of nominal is inconclusive because of the recent debate over its usefulness in terms of productivity. Subsequent researchers have directed our attention to the re-examination of cognitive stimulation, which is considered the major benefit in computer-based idea generation, to explain the performance singularity in computer-based groups. While both cognitive and motivational factors that moderate and mediate the group-interaction process remain unexplored, individual differences that are tightly linked to creative behavior have been largely ignored to account for the discrepancy in performance. Since simulations have been widely used in situations where an outcome does not meet the assumptions, the notion of a group simulator and detailed simulation mechanisms are introduced to examine the potential effects of individual differences on the performance of computer-based idea generation groups. In addition, two prior studies that empirically explored cognitive mechanisms with the group simulator are showcased along with six propositions to initiate future research.

On the Design of Distributed Time-Triggered Embedded Systems

  • Kopetz, Hermann
    • Journal of Computing Science and Engineering
    • /
    • v.2 no.4
    • /
    • pp.340-356
    • /
    • 2008
  • The cognitive constraints of the human mind must drive the decisions in architecture and methodology design in order that the systems we build are comprehensible. This paper presents a methodology for the design of time-triggered embedded systems that leads to understandable artifacts. We lift the design process to a higher level of abstractionto the level of computational components that interact solely by the exchange of messages. The time-triggered architecture makes it possible to specify the temporal properties of component interfaces precisely and provides temporally predictable message communication, such that the precise behavior of a large design can be studied in the early phases of a design on the basis of the component interface specifications. This paper shows how the cognitive simplification strategies of abstraction, partitioning and segmentation are supported by the time-triggered architecture and its associated design methodology to construct evolvable embedded systems that can be readily understood and modified.

The Effectiveness of Cognitive Load in Multimeida Learning (멀티미디어 학습환경에서 인지부하 효과)

  • 송승진;조경자;한광희
    • Proceedings of the Korean Society for Cognitive Science Conference
    • /
    • 2000.05a
    • /
    • pp.93-98
    • /
    • 2000
  • 본 연구에서는 멀티미디어 환경에서 인지부하 정도에 따라 학습 수행에 어떤 차이를 보이는지를 알아보고자 하였다. 본 연구에서는 멀티미디어 환경 학습을 함에 있어서 학습 제시 유형이 학습 수행에 영향을 미칠 것으로 보아, 같은 내용을 텍스트로 제시하는 조건, 텍스트와 나레이션으로 제시하는 조건, 애니메이션과 텍스트로 제시하는 조건에서 학습하도록 한 후 학습 수행 정도를 비교하였다. 학습 수행 정도는 학습이 끝난 후 즉시 시행하는 검사와 일 주일 후에 실시한 지연검사로 평가되었다. 그 결과 텍스트로만 제시한 조건의 학습자들이 다른 조건에 비해 즉시 검사와 지연검사 모두 더 높은 수행을 보인 것으로 나타났다. 이 결과는 멀티미디어 환경에서 인지부하를 주는 자극 제시 유형은 학습에 방해를 준다는 것을 보여주며, 이는 멀티미디어로 학습정보를 제시하는 것이 어떠한 경우에서나 늘 좋은 것이 아니라, 학습자 상황과 학습 내용을 충분히 고려해야 하는 것을 시사한다.

  • PDF

A Wrist-Type Fall Detector with Statistical Classifier for the Elderly Care

  • Park, Chan-Kyu;Kim, Jae-Hong;Sohn, Joo-Chan;Choi, Ho-Jin
    • KSII Transactions on Internet and Information Systems (TIIS)
    • /
    • v.5 no.10
    • /
    • pp.1751-1768
    • /
    • 2011
  • Falls are one of the most concerned accidents for elderly people and often result in serious physical and psychological consequences. Many researchers have studied fall detection techniques in various domain, however none released to a commercial product satisfying user requirements. We present a systematic modeling and evaluating procedure for best classification performance and then do experiments for comparing the performance of six procedures to get a statistical classifier based wrist-type fall detector to prevent dangerous consequences from falls. Even though the wrist may be the most difficult measurement location on the body to discern a fall event, the proposed feature deduction process and fall classification procedures shows positive results by using data sets of fall and general activity as two classes.

An Analytic Study of the cognitive features of the Korean civilian pilot-ATC controller aviation English language use which affects job performance (국내 민간조종사-관제사의 항공영어 수용오류의 인지적 특성측정 및 평가)

  • Sin, Hyon-Sam
    • Journal of the Korea Safety Management & Science
    • /
    • v.9 no.6
    • /
    • pp.81-88
    • /
    • 2007
  • This study deals with the overall meta-cognitive aspects of ATC-Pilot miscommunications pertinent to cognitive human errors based on the previous literature research which it has been focused on the issue of the global aviation English use in regard with aircraft accident and incident. Especially, it addresses the concern over the ICAO aviation English language proficiency evaluation program which will be implemented globally in March, 2008. In addition, It presents the analysis related to the on-going English language proficiency level four test conducted for Korean civil airlines pilots and air traffic controllers.

Analysis about visual object's layout and position by forklift driver's instrument cognitivity (Forklift 운전자의 계기판 인지성에 따른 Visual object의 layout과 위치에 관한 분석)

  • Jung Woo-Geun;Park Peom
    • Journal of the Korea Safety Management & Science
    • /
    • v.7 no.5
    • /
    • pp.97-105
    • /
    • 2005
  • Achievement degree can be improved by display offering more effective process about cognitive, pattern recognition than making observers use memory, integration, and cognitive process of control. And this research is proved by several scholars' researches [4][5][7][9]. In this study, researches was conducted about cognition according to layout of object in instrument panel. To decide layout of instrument panel, Cognition value was preferentially decided about all location. And then, objects are arranged to correct position of low cognition following the inferior procedure about each location. As a result, we get conclusion that gauge location is taken in high importance order through mechanical importance degree bringing huge damage during driving forklift-truck.

Acceptance and commitment therapy (수용전념치료)

  • Na, Euihyeon
    • Journal of Medicine and Life Science
    • /
    • v.15 no.2
    • /
    • pp.51-55
    • /
    • 2018
  • Acceptance and Commitment Therapy (ACT) is a functional contextual intervention approach based on the behavioral theory on human language, which views human suffering as originating in psychological inflexibility fostered by cognitive fusion and experiential avoidance. Thus, the goal of ACT is to enhance psychological flexibility using six core processes including acceptance, cognitive defusion, self-as-context, contact with present moment, values clarification, and committed action. Recent clinical trials have suggested the efficacy for ACT in the treatment of various mental illness and psychological distress. The aim of this review is to offer more knowledge and better understanding of ACT by presenting its underlying principle and an overview of the research field.

Development of a Cognitive Behavioral Therapy Program for Adolescents with Eating Disorders (섭식장애 청소년을 위한 인지행동치료 프로그램 개발)

  • Kum, Da Jeong
    • Perspectives in Nursing Science
    • /
    • v.18 no.1
    • /
    • pp.1-9
    • /
    • 2021
  • Purpose: This study was undertaken for developing a cognitive behavioral therapy (CBT) program for adolescents with eating disorders. Methods: The specific process for the development of this program involved establishing a program goal, analyzing existing CBT programs, and constructing a CBT program. Results: The program consisted of 12 sessions, which is shorter than typical programs conducted for people with eating disorders, in order to reduce the dropout rate. Each session was 40~60 minutes long, and included the use of the psychoeducation, Dysfunctional Thought Record, and activity planning. The participants attended 5 sessions individually and 7 with their family members. Conclusion: This study presented a 12-session CBT program for adolescents with eating disorders. These results will provide valuable data for developing effective programs to improve the quality of life of these adolescents.

Degree of Cognitive Conflict by Learner Personality and the Method of Presenting Anomalous Data in Science Learning (과학 학습에서 학습자 성격유형과 불일치 상황 제시 방법에 따른 인지갈등 정도)

  • Choi, Hyuk-Joon;Hong, Yun-Hee;Lee, Jae-Nam;Kwon, Mi-Rang;Seo, Sang-Oh;Kim, Ji-Na;Kim, Jun-Tae;Kwon, Jae-Sool
    • Journal of The Korean Association For Science Education
    • /
    • v.25 no.4
    • /
    • pp.441-449
    • /
    • 2005
  • The purpose of this study was to examine the degree of cognitive conflict by learner personality and the method of presenting anomalous data to induce cognitive conflict. The participants of this study were 461 high school students. To arose cognitive conflict, an actual demonstration was done for half of the participants and a logical article for the rest. MBTI (Myers-Briggs Type Indicator) was used to find the learner personality types, and CCLT (Cognitive Conflict Level Test) was used to measure the degree of cognitive conflict aroused when anomalous data was confronted. The results of this study indicated that learner personality types influence the degree of cognitive conflict. First, participants were divided into two personality types via preferences on each of the four preference indices; extraversion (E) or introversion (I), sensing (S) or intuition (N), thinking (T) or feeling (F), judgment (J) or perception (P). The cognitive conflict scores of the thinking types were significantly higher than those of the feeling types. Participants were also divided four personality types according to personality functional types: ST, SF, NT and NF. SF type showed a significantly lower cognitive conflict score than any of the other types. According to the type of learner personality, cognitive conflict was influenced differently by the method of presenting anomalous data. For example, the judgment types had a higher cognitive conflict score by logical argument, and the perception types showed a higher score by demonstration. In conclusion, learner cognitive conflicts were influenced by personality types and the methods of presenting anomalous data.

Methamphetamine abuse and memory loss (메스암페타민 중독환자의 기억손상)

  • Moon, Mi-Jung;Do, Kyung-Soo;Kim, Dae-Jin
    • Proceedings of the Korean Society for Cognitive Science Conference
    • /
    • 2005.05a
    • /
    • pp.182-185
    • /
    • 2005
  • 메스암페타민 중독환자의 기억 손상을 알아보기 위해 19명의 중독환자와 18명의 정상인을 대상으로 언어기억과 시각 기억을 검사하였다. 언어기억에서는 유의한 차이가 나타나지 않았으나, 시각 기억에서는 유의한 차이가 나타났다. 이 결과는 시각 기억과제에서 계획과 같은 집행기능이 더 요구되었기 때문으로 해석되었다.

  • PDF