• Proceedings of the KSPS conference
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• 2007.05a
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• pp.158-162
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• 2007

Anomia, word finding difficulty, is one of the most common feature in aphasia. Previous studies support that the process of picture naming consists of three stages, in the order of the object recognition, semantic, and phonological output stages. Anomic patients have many symptoms and it means that anomia can be sub-divided into several symptom groups. Our anomia assessment battery consists of several parts: (1) picture naming set, (2) picture-word matching task, (3) lexical decision task for mental lexicon damage, (4) naming task for phonological lexicon damage, and (5) semantic decision task. Pictures and words were selected on the basis of usage frequency, semantic category, and word length. We administered this anomia evaluation battery to many anomic aphasics and we subdivided patients into several groups. We hope that our anomia evaluation set is useful and helpful for evaluation anomic aphasics

• Science of Emotion and Sensibility
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• v.26 no.4
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• pp.93-102
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• 2023

Emojis and avatars are widely used in online communications, but their emotional conveyance lacks research. This study aims to contribute to the field of emotional expression in computer-mediated communication (CMC) by exploring the effectiveness of emotion recognition, the intensity of perceived emotions, and the perceived preferences for emojis and avatars as emotional expression tools. The following were used as stimuli: 12 photographs from the Yonsei-Face database, 12 Memojis that reflected the photographs, and 6 iOS emojis. The results of this study indicate that emojis outperformed other forms of emotional expression in terms of conveying emotions, intensity, and preference. Indeed, the study findings confirm that emojis remain the dominant form of emotional signals in CMC. In contrast, the study revealed that Memojis were inadequate as an expressive emotional cue. Participants did not perceive Memojis to effectively convey emotions compared with other forms of expression, such as emojis or real human faces. This suggests room for improvement in the design and implementation of Memojis to enhance their effectiveness in accurately conveying intended emotions. Addressing the limitations of Memojis and exploring ways to optimize their emotional expressiveness necessitate further research and development in avatar design.

• Korean Journal of Cognitive Science
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• v.20 no.3
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• pp.309-333
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• 2009

Two experiments were conducted to examine the role of Kulja and morpheme in processing two-syllable Sino-Korean words. In Experiment 1, the effects of morphemic frequency were not significant at the initial and final positions of a word while Kulja frequency and Kulja-morpheme correspondence at both positions in a word had a significant impact on the processing of nonwords. Lexical decision times were longer for nonwords with high frequency Kulja and for nonwords with ambiguous Kulja-morpheme correspondence whose Kulja can go with many different morphemes. In Experiment 2 Kulja-morpheme correspondence was examined for words as well as nonwords. Lexical decisions were slower for stimuli with ambiguous Kulja-morpheme correspondence. The effect was more stable for nonwords, which replicated the result of Experiment 1. In sum, the results of this study suggest that words with ambiguous Kulja-morpheme correspondence activate many different morphemes and competition among these morphemic candidates slows down the lexical selection process. Kulja frequency, Kulja neighborhood, morphemic frequency, morphological neighborhood, and Kulja-morpheme correspondence in Korean word recognition were also discussed.

• Journal of the Korea Academia-Industrial cooperation Society
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• v.10 no.7
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• pp.1680-1684
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• 2009

The priming task was used in order to provide an experimental evidence on whether the processing unit of Korean syllable is antibody or not. Four types of experimental conditions were made: antibody overlap condition (e.g., sumjil -> sungjik), rime overlap condition (e.g.,: hungchik -> sungjik), onset and coda overlap condition (e.g.,: saengjeok -> sungjik), and no overlap condition (e.g.,: chanmeol -> sungjik). In addition, we manipulated the letter type by type and type in order to investigate on whether different degrees of priming are there for the priming task. The result showed that only type showed significant inhibitory effects. This implicates that certain Korean word would be represented and processed by the antibody unit, and further studies are needed to know the whole pattern of Korean word recognition.

• Journal of Technologic Dentistry
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• v.42 no.4
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• pp.402-408
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• 2020

Purpose: To understand the students' level of recognition of online classes in the Department of Dental Technology and to provide the basic data for designing online classes based on the dental technology course. Methods: A survey was conducted among the students of the dental technology department. The collected data was analyzed with the SPSS ver. 25.0 program. To ensure a reliable verification, the α=0.05 significance level was used. The t-test and analysis of variance were also performed. Results: The students' level of recognition of online classes in the Department of Dental Technology is shown in the rate of recognition for video-based classes for both the theory and experiments. Students displayed high positivity with the video-based learning as it is repeated learning that is not affected by the limitations of time. In addition, video-based learning is highly beneficial in terms of convenience, satisfaction, and achievement for learning. Conclusion: Based on the results, video-based learning is a highly positive learning type for students. It was also recommended that the Department of Dental Technology should offer a post-COVID-19 online class to include the blended methods of a face-to-face class and video-based learning.

• Proceedings of the KSPS conference
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• 2007.05a
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• pp.173-175
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• 2007

The lexical decision task (LDT) commonly postulates the activation of semantic level. However, there are few studies for the feedback effect from semantic level. The purpose of the present study is to investigate whether the feedback effect from semantic level is facilitatory or inhibitory in Korean LDT. In Experiment 1, we manipulated the number of phonological syllable neighbors (PSN) and the number of semantic neighbors (SEN) orthogonally while orthographic syllable neighbor (OSN) is dense. In the results, the significant facilitatory effect was shown in words with many SEN. In Experiment 2, we examined same conditions as Experiment 1 but OSN was sparse. Although the similar lexical decision latency pattern was shown, there was no statistical significance. These results can be explained by the feedback activation from semantic level. If a target has many SENs and many PSNs, it receives more feedback activation from semantic level than a target with few SENs and PSNs.

• Annual Conference on Human and Language Technology
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• 1992.10a
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• pp.525-532
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• 1992

본 연구는 한글 글자를 지각하는데 있어서 인식의 초기 단계에 사람들이 글자의 유형을 처리하는지 알아보기 위하여 시행되었다. 글자인식의 초기 단계에서 유형 분류를 한다는 것은 이미 인공시각 연구자들에 의해 시뮬레이션을 통해 검증된 바 있으나, 그것이 심리학적으로 실재성을 가지는지에 대한 검토는 없었으므로 본 연구를 실시하게 된 것이다. 먼저 예비실험을 통해 본 실험에서 쓸 자극제시시간을 구했으며, 실험은 한글 글자 중 낱자 수가 두 개인 유형 1, 2 의 글자를 자극으로 쓰는 경우와, 낱자 수가 세개인 유형 3, 4, 5 의 글자를 자극으로 쓰는 경우를 나누어서 실시하였다. 실험 1 과 실험 2 의 결과는 모두 가설을 강력히 지지하는 것으로 나왔다. 즉 자극제시시간을 역치하로 했을 경우 글자의 정답율과 유형의 정답율을 비교해 보았을 때 유형의 정답율이 유의하게 높았으며, 이는 아직 글자의 의미처리가 일어나기 전인 인식의 초기 단계에서 이미 글자의 유형에 대한 처리가 일어났음을 시사해 주는 것이다.

• Annual Conference on Human and Language Technology
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• 1992.10a
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• pp.423-433
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• 1992

낱자 또는 음절들을 매우 짧게 제시하고 차폐로 지운 후 두 낱자 중하나를 선택하는 과제 (Reicher, 1969)를 사용하여 음절 맥락에서 낱자 지각에 영향을 주는 변수들과 그 배후 지각과정들을 검토하였다. 자모 조합유형이 음절 내 낱자의 정체 파악에 체계적으로 영향을 주고 있었고, 예상과는 달리 음절 내의 낱자들이 단독으로 제시되는 낱자 보다 잘 파악되지 않는 음절열등효과가 일관되게 관찰되었다. 본 연구의 세 실험 결과들을 상호작용활성화 모형과 초보지각자-기억자 모형에 비추어 논의하였다.

• Proceedings of the Korea Information Processing Society Conference
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• 2022.11a
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• pp.426-428
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• 2022

화재 상황에서의 빠른 현장 파악은 인명피해를 줄이는데 중요한 요소이다. 기존 연구의 화재와 관련된 데이터셋들은 대부분 불과 연기를 라벨링하여 화재의 예방에 초점을 두고 있다. 본 연구에서는 화재 상황에서 사람과 소방관, 연기, 불을 탐지하는 Object detection 모델을 만들어 현장 파악에 더욱 도움을 주고자 하였다. 이를 위해 화재 상황 이미지 약 3000장을 수집하고 라벨링하여 데이터셋을 구성하였으며 이를 이용해 객체 검출 모델인 RetinaNet을 학습하였다. 또한, 화재 상황에서 Object Detection 모델의 성능을 향상시키기 위해 기존 모델인 RetinaNet에 Dehazing(FFA-Net), Smoke augmentation, semi-supervised(ISD) 방법을 적용하였고, semi-supervised 조건에서 mAP 63.7로 가장 높은 성능을 도출하였다.

• Science of Emotion and Sensibility
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• v.11 no.4
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• pp.613-628
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• 2008

Mind reading is an essential part of normal social functioning and empathy plays a key role in social understanding. This study investigated how individual differences can have an effect on reading emotions in facial expressions, focusing on empathizing and systemizing. Two experiments were conducted. In study 1, participants performed emotion recognition test using facial expressions to investigate how emotion recognition can be different as empathy-systemizing type, facial areas, and emotion type. Study 2 examined how emotion recognition can be different as empathy-systemizing type, facial areas, and emotion type. An emotion discrimination test was used instead, with every other condition the same as in studies 1. Results from study 2 showed mostly same results as study 1: there were significant differences among facial areas and emotion type and also have an interaction effect between facial areas and emotion type. On the other hand, there was an interaction effect between empathy-systemizing type and emotion type in study 2. That is, how much people empathize and systemize can make difference in emotional discrimination. These results suggested that the empathy-systemizing type was more appropriate to explain emotion discrimination than emotion recognition.