• Korean Journal of Cognitive Science
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• v.18 no.4
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• pp.399-415
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• 2007

Many objects are always present in a visual scene. Since the visual system has limited capacity to process multiple stimuli at a time, how to cope with this informational overload is one of the important problems to solve in visual perception. This study investigated the suppressive interactions among multiple stimuli when attention was directed to either one of the stimuli or all of them. The results indicate that suppressive interactions among multiple circles were reduced in V4 when subjects paid attention to one of the four locations, as compared to the unattended condition. However, suppressive interactions were not reduced when they paid attention to all four items as a set, in order to compute their mean size. These results suggest that whereas focused attention serves to later out irrelevant information, distributed attention provides an average representation of multiple stimuli.

• Proceedings of the Korean Society for Cognitive Science Conference
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• 2002.05a
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• pp.145-150
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• 2002

의도와 관심의 실현을 위하여, 언어 행동을 주도하는 '의식'이 사고와 언어를 연결할 때에 드러내는 특성과 기능 일부를 밝히기 위해, <실용 논리> 수업 시간에 녹화한 한 대학생의 토론 첫 부분 내용을 Chafe의 '억양 단위' 분석법에 따라 분석한 결과, 억양의 단위는 평균 1.8초, 9.5음절로 구성되며, 언어와 사고는, 물처럼 흐르는 것이 아니라, 억양 단위로 끈어진 토막들이 의식에 의해 연결되면서 '관심점'의 내용이 전개되고 있는 것임을 발견하였다. 각 억양 단위 속에는 뚜렷하게 발음하는 하나 정도의 '초점'과, 그렇지 않은'주변' 내용과 형식으로 구성됨을 확인하고, 초점들을 서로 이으면 결국, 이어진 말 중심 내용이 드러남도 발견하였다. 한국어와 일본어 억양 단위는 주어＋동사 형식을 갖추지 않은 예가 60％와 67.4％이므로, 주어＋동사 모형은 언어와 사고 전개 모형의 한 예에 불과하다고 해석한다. 각 단위들의 연결 면에는 문제가 있음도 발견하였다.

• Korean Journal of Digital Imaging in Medicine
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• v.9 no.1
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• pp.7-15
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• 2007

This study aim to investigate image characteristics due to focus-grid and head phantom decentering from the armorphos silicon thin film transistor detector the fixed focus-grid is applied, wish to propose right use method of digital medical equipment. Acquired image according to focus-grid and head phantom position decentering using head phantom on armorphos silicon thin film transistor detector the fixed focus-grid is applied. acquired image evaluate pixel value, histogram, plot profile, surface plot using NIB (Image J) image analysis program and compared decentering image with standard image. Mean value and standard deviation value of focus-grid lateral decentering and duplex decentering of focus-grid and head phantom decreased by ratio, consequently increase of horizontality, diagonal decentering. also, deteriorated contrast of image because frequency of high pixel value decreases fairly. according increases decentering, image distortion phenomenon was increase, by next time, pixel mean value of head phantom decentering was no big change but horizontality, diagonal, mean value and standard deviation value of pixel decreased by ratio. Even if increase pixel noise of image because wide latitude and post processing ability of digital detector, radiotechnologist can not recognize. Therefore, radiotechnologist must recognize correctly the photographing factors which increases pixel noise on the grid system installation digital detector and should exam.

• Korean Journal of Cognitive Science
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• v.31 no.4
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• pp.137-154
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• 2020

Psychological properties of learners have influence on learning behaviors in various ways. The purpose of this study was to examine how the goal orientation of learners affected the learning time distribution method. Regulatory focus and theories of intelligence were measured and manipulated in order to differentiate participants' goal-oriented state. Two variables are known to be key variables influencing learner's goal orientation, inducing the approach-avoidance strategy and mastery-performance oriented attitude. In the experiment, the control focus was divided into two groups based on the inclination test score (regulatory Focus Questionnaire, RFQ), and TOI(theory of intelligence) was temporally induced through manipulation to confirm the interaction between the two variables. Participants were able to determine the order of learning freely by learning a set of Spanish-Korean word pairs and then selecting the items they would like to re-learn. Word pairs consisted of difficult or easy items, and learners could learn the same word many times if they wanted to. In the results, promotion-incremental group showed allocating difficult word-pairs in early time.

• The Journal of the Korea Contents Association
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• v.18 no.3
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• pp.409-420
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• 2018

The decision to actively reveal oneself as a consumer on social media depends on whether the focus is more on positive rewards than negative threats associated with self-presentation, that is, who the other party is in that relationship. The audience of self-presentation could also be divided into expressive and instrumental ties: work partners can be classified as an audience of instrumental ties, whereas school friends can be regarded as an audience of expressive ties. This study accordingly predicted that people would focus more on prevention of negative threats than positive reward, exhibiting defensive self-presentation in relationships with strong instrumental ties because the fallout from negative threats due to failed self-presentation have a more detrimental effect than a positive reward from successful self-presentation. The empirical findings thereby indicated that as the proportion of coworkers increased among Facebook friends, the mediation effect through defensive self-presentation increased, whereas such effect through acquisitive self-presentation decreased.

• Asia-Pacific Journal of Business Venturing and Entrepreneurship
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• v.6 no.4
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• pp.75-94
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• 2011

Our objective is to investigate the various variables that influence the purchase intention of small enterprise products and to interpret the impact of these variables in terms of individual differences. Need for cognition, need for uniqueness, and self-regulation are selected to explain the choice or purchase intention. The major reasons that consumers are reluctant to purchase small enterprise products are mainly due to problems in quality and distribution channel. When these problems are resolved, it is interesting to see how the individual differences affect purchase intention for small enterprise products and how the impacts will be changed. Previous studies assumed uni-dimensionality of need for cognition and need for uniqueness. We relaxed the assumption, incorporated the nature of multi-dimensionalities for these variables and showed that sub-dimensions of these variables have different effects on the purchase intention. After improving the conditions of quality or distribution channel, promotion focus and prevention focus for sub-dimensions of self-regulation have positive impacts on the purchase intention and sub-dimensions of need for cognition and need for uniqueness have enhancing or reducing effects on purchase intention. These results can be interpreted that consumers expect some levels of quality or distribution channel to reach consumer choice. Results for cluster analysis showed that how sub-dimensionalities of individual difference variables are combined to form groups and how these groups are related to purchase intention. Emphasis of quality over price has a negative correlation with purchase intention of small enterprise products.

• Korean Journal of Health Psychology
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• v.15 no.3
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• pp.483-498
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• 2010

This study is to examine the effects of emotion regulation strategies in facial expressions and emotional experiences, based on the facial expressions of groups, using antecedent- and response- focused regulation. 50 female undergraduate students were instructed to use different emotion regulation strategies during the viewing of a disgust inducing film. While watching, their facial expressions and emotional experiences were measured. As a result, participants showed the highest frequency of action units related to disgust in the EG(expression group), and they reported in the following order of DG(expressive dissonance group), CG(cognitive reappraisal group), and SG(expressive suppression group). Also, the upper region of the face reflected real emotions. In this region, the frequency of action units related to disgust were lower in the CG than in the EG or DG. The results of the PANAS indicated the largest decrease of positive emotions reported in the DG, but an increase of positive emotions reported in the CG. This study suggests that cognitive reappraisal to an event is a more functional emotion regulation strategy compared to other strategies related to facial expression and emotional experience that affect emotion regulation strategies.

• The Journal of Information Systems
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• v.19 no.3
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• pp.127-147
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• 2010

전자상거래의 급속한 발전 속에서 기업들은 세계적 시장에서 경쟁력을 지니기 위해 전자상거래를 이용하여 상품판매, 서비스 제공, 고객과 소통하고자 한다. 그러나, 기존의 연구들은 TAM 모형을 통한 상호관계나 선행관계에만 초점을 맞추고 있기 때문에 좀 더 확장한 모형이 필요하다. 본 연구에서는 상품정보와 서비스 제공수준은 소비자 행동에 영향을 미치는 중요한 요인이지만 연구가 충분치 못한 실정이다. 따라서 본 연구의 목적은 첫째, 상품정보제공수준과 서비스제공수준에 따른 소비자 태도 차이를 조망하고자 한다. 둘째, 기존에 연구가 미약하였던 상품정보제공수준 및 서비스제공수준과 기존에 인지된 가치, 인지된 위험, 구매의도와 구전의도간의 상호인과관계를 조망하고자 한다. 본 연구의 결과는 다음과 같다. 첫째, 상품정보제공수준과 서비스제공수준에 따라 소비자 태도 차이에는 차이가 있었다. 둘째, 상품정보제공수준과 서비스제공수준에 따라 소비자들이 인지된 가치, 인지된 위험, 구매의도, 구전효과에는 차이가 있었다. 셋째, 변수들간에 상호인과관계와 선행관계가 존재하였다. 상품정보제공수준과 서비스 제공수준은 인지된 가치와 인지된 위험에 각각 직접적인 영향을 미쳤다. 뿐만 아니라, 인지된 가치는 인지된 위험, 구매의도, 구전효과에, 인지된 위험은 구매의도와 구전효과에 직접적인 영향을 나타내었다.

• Proceedings of the Korean Society for Cognitive Science Conference
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• 2000.06a
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• pp.350-357
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• 2000

본 논문은 근 몇 년간 꾸준히 진행되어진 중한 기계번역시스템에 대한 연구의 기초 위에서, 뉴스 타이틀 번역이라는 특정 도메인에 초점을 맞추어 언어적 특성을 살펴보고, 중한 언어적 유사성에 기반 한 뉴스 타이틀 번역을 위한 중한 기계번역시스템에 대하여 설명한다.

• Proceedings of the Korean Society for Cognitive Science Conference
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• 2000.06a
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• pp.395-401
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• 2000

국어에서는 어떠한 대상의 수량을 표현할 때 수사와 함께 분류사(classifier)를 사용한다. 따라서 분류사는 그 특성상 수량 표현 구문을 형성하는 대상 명사와 의미적으로 밀접한 관련을 지니게되는데, 단순히 명사를 셈하는 것 뿐 아니라 명사의 의미적 특성을 명세(specify)해 준다고 할 수 있다. 본 연구에서는 이러한 명사와 분류사의 연관성에 초점을 맞추어 분류사의 사용에 따른 명사의 범주화 및 계층 구조를 보이고, 컴퓨터 말뭉치 자료를 이용하여 그 관계를 좀더 명확히 밝히는 것을 목적으로 한다. 이러한 연구는 언어를 전산적으로 처리하는데 필수적인 전산어휘부(computational lexicon)의 구축에 필요한 기초 작업이 될 수 있다.