• 제목/요약/키워드: Cognitive Structure

검색결과 533건 처리시간 0.021초

잠재의미분석을 활용한 성격검사문항의 의미표상과 요인구조의 비교 (A Comparison between Factor Structure and Semantic Representation of Personality Test Items Using Latent Semantic Analysis)

  • 박성준;박희영;김청택
    • 인지과학
    • /
    • 제30권3호
    • /
    • pp.133-156
    • /
    • 2019
  • 본 연구는 수검자가 검사 문항을 어떻게 이해했는지를 조사하기 위해 검사문항의 의미표상을 탐구하였다. 잠재의미분석을 활용하여 성격검사문항과 성격요인의 의미표상 간 유사도를 나타내는 의미유사도 행렬을 제안하였고, 이를 기존의 탐색적 요인분석 결과와 비교하였다. 이를 위해 예비 연구에서 대학생 154명을 대상으로 제한된 맥락에서 성격의 5요인을 각각 묘사하는 지문을 수집하였고, 이를 바탕으로 5차원의 축소하여 의미공간을 구성하였다. 연구 1에서는 간편형 한국어 BFI의 요인부하량 행렬과, 예비 연구에서 구성한 의미공간에서 생성한 의미유사도 행렬을 비교하여, 두 행렬이 높은 정적 상관이 있음을 보여주었다. 연구 2에서는 의미유사도를 기반으로 성격검사문항을 생성하고, 수검자의 반응을 수집하여 탐색적 요인분석을 통해 요인구조를 도출하여 두 행렬이 유사함을 보였다. 결론적으로 본 연구는 성격검사에 대한 수검자의 반응 없이 검사문항의 의미표상을 분석하여 구성타당도를 추론할 수 있는 방법을 제안하였고, 성격검사의 요인구조를 검사문항과 성격요인의 의미표상 간 유사도로 해석할 수 있음을 보여주었다. 이러한 결과는 성격검사 개발에 실용적인 도움을 줄 수 있을 것이다.

Comparison of Lipid Profiles in Head and Brain Samples of Drosophila Melanogaster Using Electrospray Ionization Mass Spectrometry (ESI-MS)

  • Jang, Hyun Jun;Park, Jeong Hyang;Lee, Ga Seul;Lee, Sung Bae;Moon, Jeong Hee;Choi, Joon Sig;Lee, Tae Geol;Yoon, Sohee
    • Mass Spectrometry Letters
    • /
    • 제10권1호
    • /
    • pp.11-17
    • /
    • 2019
  • Drosophila melanogaster (fruits fly) is a representative model system widely used in biological studies because its brain function and basic cellular processes are similar to human beings. The whole head of the fly is often used to obtain the key function in brain-related diseases like degenerative brain diseases; however the biomolecular distribution of the head may be slightly different from that of a brain. Herein, lipid profiles of the head and dissected brain samples of Drosophila were studied using electrospray ionization-mass spectrometry (ESI-MS). According to the sample types, the detection of phospholipid ions was suppressed by triacylglycerol (TAG), or the specific phospholipid signals that are absent in the mass spectrum were measured. The lipid distribution was found to be different in the wild-type and the microRNA-14 deficiency model ($miR-14{\Delta}^1$) with abnormal lipid metabolism. A few phospholipids were also profiled by comparison of the head and the brain in two fly model systems. The mass spectra showed that the phospholipid distributions in the $miR-14{\Delta}^1$ model and the wild-type were different, and principal component analysis revealed a correlation between some phospholipids (phosphatidylethanolamine (PE), phosphatidylinositol (PI), and phosphatidylserine (PS)) in $miR-14{\Delta}^1$. The overall results suggested that brain-related lipids should be profiled using fly samples after dissection for more accurate analysis.

멀티모달 인터랙션을 위한 사용자 병렬 모달리티 입력방식 및 입력 동기화 방법 설계 (Design of Parallel Input Pattern and Synchronization Method for Multimodal Interaction)

  • 임미정;박범
    • 대한인간공학회지
    • /
    • 제25권2호
    • /
    • pp.135-146
    • /
    • 2006
  • Multimodal interfaces are recognition-based technologies that interpret and encode hand gestures, eye-gaze, movement pattern, speech, physical location and other natural human behaviors. Modality is the type of communication channel used for interaction. It also covers the way an idea is expressed or perceived, or the manner in which an action is performed. Multimodal Interfaces are the technologies that constitute multimodal interaction processes which occur consciously or unconsciously while communicating between human and computer. So input/output forms of multimodal interfaces assume different aspects from existing ones. Moreover, different people show different cognitive styles and individual preferences play a role in the selection of one input mode over another. Therefore to develop an effective design of multimodal user interfaces, input/output structure need to be formulated through the research of human cognition. This paper analyzes the characteristics of each human modality and suggests combination types of modalities, dual-coding for formulating multimodal interaction. Then it designs multimodal language and input synchronization method according to the granularity of input synchronization. To effectively guide the development of next-generation multimodal interfaces, substantially cognitive modeling will be needed to understand the temporal and semantic relations between different modalities, their joint functionality, and their overall potential for supporting computation in different forms. This paper is expected that it can show multimodal interface designers how to organize and integrate human input modalities while interacting with multimodal interfaces.

사회심리학 기반의 브랜드공간 특성 연구 - 실재론적·관계론적 분석을 통한 선행연구를 중심으로 - (A Study on the Brand Space Characteristics from the Aspect of Social Psychology - Focused on the Advance Research through Analyzing the Theoretical Methodology of Realism and Relationship -)

  • 신혜원
    • 한국실내디자인학회논문집
    • /
    • 제22권6호
    • /
    • pp.49-57
    • /
    • 2013
  • This study aims to provide direction for the brand goals approaching and analyzing previous studies in social psycholog y perspective, focusing on man and society relationship. 526 preceding 'brand space' associated papers from 1992 to 2012 were collected and analyzed them by year, by space and by theme utilizing the realism methodology, the theor etical relationship methodology. The numbers of the study for 'brand space' had increased gradually from 2003 to 2010 then climbed vertically and the most common study was about place, that shows there is a relationship between variou s social phenomena and human psychology. For the thematic analysis, 'Social psychological components of the brand' based on social psychology was used for analyzing the cognitive aspects, the relational aspects, and the attitudinal aspects. The most common study was the study of the cognitive aspects, and relational aspects, and lastly the attitud inal aspects in order. The strategy was the most common research for the brand associated study. The ultimate point of the strategy is to get 'attitude'. From social psychology perspective, there is a cycle in the minds of consumers, 'Identification', 'Internalization', 'Conformity' and 'Compliance'. Structure of these relationships can provide a clue that consumers' attitude lead the consumers' action.

Piaget이론(理論)의 비판(批判)에 관한 일소고(一小考) -방법론(方法論) 중심(中心)으로- (A Review of the Literature on Piaget's Methodolgical Approach)

  • 이영석
    • 아동학회지
    • /
    • 제5권
    • /
    • pp.3-20
    • /
    • 1984
  • The purpose of this paper was to review critiques on methodological problems relating to Piaget's researches in terms of its scientific nature. On the basis of review of literature, the following problems were pointed out: 1. Notwithstanding Piaget's emphasis on the scientific requirement for verification, Piaget was against the deductive method typical of scientific verification. 2. Piaget's theory was so vague that it couldn't be falsified. 3. Piaget ignored criticism of his method, and this was viewed as unscientific in the eyes of most scientists. 4. Avoiding the antecedent-consequence sequence of scientific experimentation, Piaget took the descriptive, rather than the explanative nature. 5. Piaget didn't accept individual differences in cognitive style in his research paradigm. 6. Piaget's experimental procedures looked very simple but they were too complex to understand what was happening. 7. Although Piaget's major ideas treated the child as the active constructor of reality, the child's experimental tasks were structured by experimenter. 8. Piaget's clinical method depended heavily upon language although the procedures required manipulation of objects. 9. Piaget always justified his experiments in terms of protocois selected from all the responses obtained. However, these protocols may not be the most representative responses or behaviors showing the child's cognitive structure.

  • PDF

도심지역의 거주환경평가에 관한 연구 - 대구 도심 지역 거주자를 대상으로 - (A Study on the Evaluation of the Dwelling Environment in the Types of Residential Area)

  • 신소영
    • 한국주거학회:학술대회논문집
    • /
    • 한국주거학회 1994년도 학술발표대회논문집 상
    • /
    • pp.29-36
    • /
    • 1994
  • The purpose of this study is to suggest the basic design elements for dwelling environment planning of downtown in Taegu.The evaluation of the dwelling environment should be approached from the satisfaction and the cognitive of the residents, that are based on their desire and various values on the conditions of residential area. This paper concerns the satisfaction and the congnitive image structure of the residents in the various dwelling types, from which design elements for dwelling environments can be derived. The results are as folIows: 1) The analysis on the satisfaction of dwell ins environment shows lots of displeasure about the lack of open-spaces and the housing low-quality, neighborhood in Mun-hwa, Korean style housing and the low-rise apartment areas. In order to make the variety types of dowelling in downtown district, the improvement of housing qualities and the expantion of the urban facilities for the open-spaces and communities are need. 2) The design elements of dwelling environments in downtown find out the important planning elements for urban design. The evaluation of the cognitive image structures about the safety and affection should be considered in design for urban dwelling areas.

  • PDF

재가노인의 약물오용행위 예측모형 (A Prediction Model of Drug Misuse Behaviors in Community-Dwelling Older Adults)

  • 홍세화;유광수
    • 대한간호학회지
    • /
    • 제46권5호
    • /
    • pp.630-641
    • /
    • 2016
  • Purpose: This study was designed to construct a model which explains drug misuse behaviors in community-dwelling older adults. Methods: The design of this research is a cross-sectional study using structure equation modeling. The hypothetical model consisted of two types of variables: the exogenous variables of health status, cognitive ability, and negative emotion, and the endogenous variables of number of drugs, and drug misuse behaviors. The data collection was conducted from September 2 to September 21, 2013 through self-report questionnaires. Participants were 320 community-dwelling adults over the age of 65 living in J city. Data were analyzed with SPSS 21.0 program and Amos 18.0 program. Results: The results of the model fitness analysis were satisfied. The predictor variables for the hypothetical model explained 62.3% of variance regarding drug misuse behaviors. Drug misuse behaviors were directly affected by health status, cognitive ability, negative emotion and number of drugs and indirectly affected by health status, and negative emotion through number of drugs. Conclusion: These findings indicate factors that should be used in developing effective nursing interventions for safe and proper drug use and the prevention of drug misuse behaviors in community-dwelling older adults.

사전 뜻 풀이말에서 구축한 한국어 명사 의미 계층구조 (A Semantic Hierarchy of Korean Nouns using the Definitions of Words in a Dictionary)

  • 조평옥;안미정;옥철영;이수동
    • 인지과학
    • /
    • 제10권4호
    • /
    • pp.1-10
    • /
    • 1999
  • 한국어 명사들을 의미별로 분류하여 계층화시킨‘한국어 명사 의미 계층 구조’는, 한국어 문장을 처리할 때 의미 정보를 제공할 수 있는 매우 중요한 것들 중의 하나이다. 본 논문에서는, 국어 사전의 명사에 대한 뜻 풀이말을 이용하여 bottom-up 방식으로‘한국어 명사 의미 계층 구조’를 구축하였다. 본 논문에서 구축한‘한국어 명사 의미계층 구조’는, 트리(tree)가 43개, 중간 노드(node)가 2,443개, 단말 노드(terminal node)가 10,347개이며, 깊이(depth)가 17인 하나의 포리스트(forest)를 이룬다. 이것의 제 1, 2 계층(level 1, 2)에서의 분류 형태는 top-down 방식에 의한 기존의 분류들과 매우 다른 모습인 반면에, 제 3 이하의 계층들은 상당히 객관적이 형태를 이루고 있다.

  • PDF

초등학교 학생들의 수업 전후 광합성 관련 개념의 지위 중복 변화 분석 (Analysis on the Change of Niche Overlap of Elementary School Students' Photosynthesis Concepts through Instruction)

  • 임수민;김영란;신애경;김영신
    • 한국초등과학교육학회지:초등과학교육
    • /
    • 제34권1호
    • /
    • pp.72-85
    • /
    • 2015
  • Conception in learner's cognitive structure has a niche as species in ecosystems. The purpose of this study is to analyze the change of niche overlap of photosynthesis concept through instruction. The photosynthesis concepts were selected from literature review. Selected concepts were in 4 areas: Location of photosynthesis, reactants, products, and environmental factors. The subjects consisted 304 elementary students. The respondent marked the relevance between the presented concepts and each area on a scale of 1~30 points. The analysis of niche overlap in concepts was performed by changing in niche overlap graph, niche space size, and overlap index before and after instruction. The results are as follows. First, on the whole understanding level and relevance of the scientific concepts was increased through instruction as a result of learning. Second, elementary school students cognitive concepts in the form of chunking concepts through classification process. Based on the results, this study has the following suggestion. Students' conceptual ecologies and niche analyzed by this study will be used as material for development of instruction strategy.

쾌 및 각성차원 기반 얼굴 표정인식 (Facial expression recognition based on pleasure and arousal dimensions)

  • 신영숙;최광남
    • 인지과학
    • /
    • 제14권4호
    • /
    • pp.33-42
    • /
    • 2003
  • 본 논문은 내적상태의 차원모형을 기반으로 한 얼굴 표정인식을 위한 새로운 시스템을 제시한다. 얼굴표정 정보는 3단계로 추출된다. 1단계에서는 Gabor 웨이브렛 표상이 얼굴 요소들의 경계선을 추출한다. 2단계에서는 중립얼굴상에서 얼굴표정의 성긴 특징들이 FCM 군집화 알고리즘을 사용하여 추출된다. 3단계에서는 표정영상에서 동적인 모델을 사용하여 성긴 특징들이 추출된다. 마지막으로 다층 퍼셉트론을 사용하여 내적상태의 차원모델에 기반한 얼굴표정 인식을 보인다. 정서의 이차원 구조는 기본 정서와 관련된 얼굴표정의 인식 뿐만 아니라 다양한 정서의 표정들로 인식할 수 있음을 제시한다.

  • PDF