• 제목/요약/키워드: cognitive processes

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Dual Effect of Price in E-Commerce Environment: Focusing on Trust and Distrust Building Processes

  • Lee, Jung
    • Asia pacific journal of information systems
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    • 제24권3호
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    • pp.393-415
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    • 2014
  • This study examines the dynamics of trust and distrust at different price levels. We first note that trust and distrust are built with cognitive and affective foundations, and price is viewed as a financial burden or product quality information. Then, we relate price changes to trust and distrust, and hypothesize their interactions: price as a quality cue will positively moderate the cognitive dimension of trust, whereas price as financial burden will negatively moderate the affective dimensions of trust and distrust. We surveyed 263 online mall shoppers in Korea. Among our eight hypotheses, six are fully supported and two are partially supported. The result shows that price perception interacts with both the cognitive and affective dimensions of trust and distrust, but its specific impacts are distinguished by the price perceptions, whether it is financial burden or product quality information.

Evolving a Holistic Design Process of Experiential Design - Focus on the Cognitive Interaction in Design Process -

  • Woo, Heung-Ryong
    • 디자인학연구
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    • 제20권2호
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    • pp.65-76
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    • 2007
  • The primary purpose of this study was to evolve integrated design process for Experiential Design which is based on the former study, 'The Influence of Cognitive Factors on the Creative Abilities in Design'. Experience is a transformation factor to all of the design processes, which has three phase of problem solving; Input, Process, and Output. We regard Experiential Design is a transforming process from concept to experience, and set up a mode) of Holistic Design Process (HDP), which consists of four domains: Four Causes, Thinking Modes, Sensory Modalities, and Creative Abilities. Revolving Sensory Modalities (SM), Creative Abilities (CA), and Thinking Modes (TM) around Product Design Specification (PDS) through a design process, Design Concepts ripen and mature into Externalization. Each component of Experiential Design (TM, SM, and CA) turns around the PDS. Here, experience is first perceived by the five senses. Then, the knowledge is formed, and the CA works for a problem solving. And TM controls all of these procedures. We regard these are a phenomenon of Experiential Design. The HDP can be helpful to develop valuable solutions and create a good experience.

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인지무선통신 환경에서 슬롯-알로하 기법의 전송 효율 분석 (Throughput Analysis of Slotted ALOHA in Cognitive Radios)

  • 왕한호;우중재
    • 전기학회논문지P
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    • 제64권1호
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    • pp.41-44
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    • 2015
  • In cognitive radios, exponentially distributed idle period(EIP) is considered in this paper. In the EIP case, durations of idle periods are be limited and varied by primary traffic arrivals. Accordingly, we first analyze the idle period utilization which can be achieved by the slotted ALOHA in cognitive radio communications. The idle period utilization is a newly defined performance metric to measure the transmission performance of the secondary network as effective time durations utilized for successful secondary transmissions in an idle period. Then, the idle period utilization is maximized through controlling the data transmission time. All technical processes are mathematically analyzed and expressed as closed form solutions.

수용전념치료 (Acceptance and commitment therapy)

  • 나의현
    • Journal of Medicine and Life Science
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    • 제15권2호
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    • pp.51-55
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    • 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.

ESL Students' Narratives of Writing Process: Multiplicity and Sociocultural Aspects

  • Kim, Ji-Young
    • 영어어문교육
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    • 제17권1호
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    • pp.125-146
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    • 2011
  • Within a framework of sociocultural approaches to writing process, this study examined six ESL graduate students' writing processes in depth based on individual interviews and their narratives of writing process. The narratives and interviews were analyzed to discover salient aspects of the students' writing processes and to understand the socially situated nature of the writing processes. First, it was observed that these six students displayed multiplicity in terms of their representations of writing process, episodes, textual practices, and concerns. Several factors including the writing task, students' familiarity with genre, literacy skills, attitude toward writing, and involvement in interaction contributed to individualized trajectories of writing process. It was also revealed that writing is unavoidably a socially situated practice. Students were situated in their cultural arenas as well as their disciplinary arenas, and these contexts helped the students serve as active agents producing and sharing knowledge. The confluence of personal, cognitive, and social factors observed in their writing processes suggests that writing process should be understood from multiple perspectives.

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사용빈도와 의미투명도가 복합명사의 분리처리에 미치는 효과 (Effects of word frequency and semantic transparency on decomposition processes of compound nouns)

  • 이태연
    • 인지과학
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    • 제18권4호
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    • pp.371-398
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    • 2007
  • 이 연구는 의미점화과제와 반복점화과제를 사용하여 사용빈도와 의미투명성이 복합명사의 분리처리 양상에 어떤 영향을 미치는지를 알아보았다. 실험 1에서는 사용빈도에 따라 복합명사의 분리처리 양상이 달라지는지를 검토하였다. 의미점화효과가 복합명사 연상어 조건에서 자극제시시차나 사용빈도와 무관하게 관찰되었으며, 반복점화효과는 부분조건과 전체조건에서 모두 관찰되었지만 부분조건에서 더 큰 반복점화효과를 보였다. 이 결과는 복합명사가 하위 형태소로 분리되어 처리되는 경로와 복합명사 전체로 처리되는 경로가 함께 존재할 가능성을 보여준다. 실험 2에서는 의미투명도에 따라 복합명사의 분리처리 양상이 달라지는지를 검토하였다. 의미점화효과가 복합명사 연상어 조건에서 자극제시시차나 의미투명도에 무관하게 관찰되었으며, 반복점화과제에서도 실험 1b와 유사한 결과를 보였다. 실험 1과 2의 결과는 어휘수준에서 분리처리경로와 전체처리경로를 통해 활성화된 의미가 개념 수준에서 이루어지는 상호작용과정을 통해 복합명사의 의미를 결정함을 시사한다.

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우울 및 불안 장애에서의 인지적 처리와 정서조절 고찰: 신경인지 연결망을 중심으로 (A Study on the Relationship between Cognitive Processes and Emotion Regulations in Depression and Anxiety Disorder: Focused on the Neurocognitive Networks)

  • 김충명
    • 산업융합연구
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    • 제19권6호
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    • pp.177-186
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    • 2021
  • 본고는 인지적 과제를 수행하는 동안 우울 및 불안 환자의 정신병리적 과정과 이의 치료접근 방식에 대한 통합적 이해를 위해 최근 제시된 신경인지 연결망을 토대로 인지과정 및 정서조절의 비정상적 기능 연결성을 재해석 할 수 있는 모델을 제안하고자 하였다. 재구성된 우울과 불안장애 신경인지 연결망 모델을 통해, 우울증은 불이행방식 연결망(default mode network; DMN)의 과다 활성화에 기인하는 '자기참조적 사고로의 과몰입'으로, 불안장애는 불이행방식 연결망의 과소 활성화에 기인하는 '자기참조적 사고와의 단절'로 규정해 볼 수 있음을 확인하였다. 신경인지 연결망 중 자기의식 및 투사와 관련되는 자기참조 처리가 주요 기능인 DMN의 비정상적 활성화와 병리적 기능의 체계적 연결시도는 우울와 불안에 대한 통합적 해석과 치료적 접근에 시사점을 줄 수 있는 또 다른 출발점이 될 수 있을 것이다.

프로젝트접근법이 유아의 인지양식에 미치는 영향 (The effect of Project Approach Program on Children's Cognitive Styles)

  • 채행찬;황혜신
    • 대한가정학회지
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    • 제43권4호
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    • pp.161-172
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    • 2005
  • The present study investigation the effect of a project approach program on children's cognitive styles. It examined closely the characteristics and processes of the project approach program to determine its impact on children's individual cognitive styles such as divergent thinking, field independence, and reflection. The subjects were 384-year-old children. Eighteen children were assigned to the experimental group and twenty to the control group. Pretest-treatment-posttest design was adopted for this study. Collected data were analyzed with SPSS Win 10.0 and processed statistically using average, standard deviation, and ANCOVA. For the children's divergent thinking, the children with the project approach program showed significant difference in fluency and flexibility, but no difference in originality and elaboration, compared to the children in the control group. Children with the project approach program showed more field independence than those in the control group. Children with the project approach program showed no difference in reflection. These results showed that the project approach pro!3ram partly influenced the children's cognitive styles.

원자력발전소 비상운전 직무의 오류 예측을 위한 정보적 분석 (Informational Analysis for Error Prediction of Emergency Tasks in Nuclear Power Plants)

  • 정원대;김재환;윤완철
    • 대한인간공학회지
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    • 제18권3호
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    • pp.41-53
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    • 1999
  • More than twenty HRA (Human Reliability Analysis) methodologies have been developed and used for the safety analysis in nuclear field during the past two decades. However, no methodology appears to have universally been accepted, as various limitations have been raised for more widely used ones. One of the most important limitations of conventional HRA is insufficient analysis of the task structure and problem space. To resolve this problem, we suggest a framework of informational analysis for HRA. The proposed informational analysis consists of three parts. The first part is the scenario analysis that investigates the contextual information related to the given task on the basis of selected scenarios. The second is the goals-means analysis to define the relations between the cognitive goal and task steps. The third is the cognitive function analysis that identifies the cognitive patterns and information flows involved in the task. Through the three-part analysis. systematic investigation is made possible from the macroscopic information on the tasks to the microscopic information on the specific cognitive processes. It is expected that analysts can attain a structured set of information that helps to predict the types and possibility of human error in the given task.

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유발전위신호(ERP)를 통한 시각과 촉각 통합작용의 신경생리적 특징 분석 (Event-related potentials reveal neural signatures of cross-modal interaction between visual and tactile stimulation)

  • 주유미;이경민
    • 한국인지과학회:학술대회논문집
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    • 한국인지과학회 2010년도 춘계학술대회
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    • pp.48-54
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    • 2010
  • INTRODUCTION Interaction between temporal events at the millisecond level is important for visual and tactile interaction. OBJECT The aim of the present study is to identify any neural signature, as reflected in event-related potentials (ERP), for the integrative processes when the two sensory modalities are stimulated in synchrony as opposed to when they are stimulated separately. METHOD The basic strategy was to compare ERP signals obtained with simultaneous visual and tactile stimulation with a linear summation of ERP patterns obtained with each modality stimulated separately. Condition were presented, paired with various stimulus-onset-asynchronies (SOA) ranging from - 300 ms (tactile-first) to 300 ms (visual-first), and in trials where only one modality was stimulated alone. RESULT A positive deviation was located in observed ERP at C4 electrode (contralateral to the stimulated hand) at 200-400 ms, in comparison to the predicted ERP. The deviation was present at all SOAs other than -300ms (tactile-first) and 300 ms (visual-first). There was also a positive deviation at occipital leads at the 50-ms SOA (visual-first) trials. DISCUSSION It suggested that neural signatures of cross-modal integration occur within a limited time-window. The deviations were specifically localized at the contralateral somatosensory and visual cortices, indicating that the integration happens at or before the level of the primary cortices.

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