한국어 비교문장을 이용한 문장 진리치 판단에 관한 ERP 연구

남윤주 한국언어정보학회 2019 언어와 정보 Vol.23 No.3

Language and Information. The present study investigated the underlying cognitive mechanism of the truth-value validation process of Korean comparative structure sentences. The brain and behavioral response of 15 Korean native speakers were recorded and analyzed during the processing of the comparative sentences with 4 conditions manipulated by the frequency of the predicate (big or small) and the truth-value (true or false). The behavioral results (i.e. judgment time and accuracy) showed that only the effect of the predicate’s frequency was significant. However, in the ERP, the predicate’s frequency effect and the truth-value effect were reflected in early N400 component(250-400ms) as well as the positivity effect in 400-600ms by the truth-value factor. The immediacy of the truth-value validation and the functional interpretation of N400 related to the truth-value were discussed in overall.

한국어 여격 구문 처리에서의 어순 선호도에 대한 ERP 증거

남윤주,홍우평 한국언어정보학회 2017 언어와 정보 Vol.21 No.3

The current study investigates the so-called ‘long-before-short’ preference in head final languages, and addresses the question of whether such a word order preference in sentence comprehension is reflected as a language-related brain response. For this purpose, Korean native speakers’ ERP responses were recorded while they read dative sentences of Korean manipulated in terms of length and order of indirect object(IO) and direct objects(DO). The results of the experiment indicate no difference between ERP responses to ‘long-before-short’ vs. ‘short-before-long’ sentence, whereas the N400 was elicited by DO-IO compared to the canonical IO-DO word order. The null-effect observed in the case of dative sentences cannot simply be attributed to the insensibility of the ERP measurement to well-formed sentences’ word order variants due to the observed N400 component implying the psychological reality of the preference to the canonical word order. Based on these results, we suggest that the ‘long-before-short’ preference should be taken as a kind of off-line processing strategy which is applied at the relatively later stage of sentence comprehension.

한국어 술어 은유처리에 대한 ERP 연구

남윤주,정혜인 한국언어정보학회 2016 언어와 정보 Vol.20 No.2

The present study investigated the predicative metaphor in Korean focusing on the controversial issue of processing of metaphoric expression (indirect access vs. direct access) using an ERP technique. Two offline tasks and an ERP experiment were conducted employing the four experimental conditions such as literal meaning, conventional metaphor, novel metaphor & anormal meaning condition. The results showed that N400 was elicited in the literal meaning compared to conventional metaphor condition. In addition, the N400 & P600 was elicited in the novel metaphor and anormal meaning conditions compared to the literal or conventional metaphor condition, but the effect size in novel metaphor condition was smaller than the one in the anormal condition. These findings are interpreted as supporting evidence on the direct access model which argued that the metaphoric expression can be processed easely and quickly like the literal sentence if it is sufficiently salience.

한국어 산출에서 문장성분의 의미적 속성이 어순선호에 미치는 영향

남윤주,유제욱,홍우평 한국언어정보학회 2018 언어와 정보 Vol.22 No.1

We conducted a psycholinguistic experiment in which nativespeakers of Korean orally produced sentences using a subject, a temporal adjunct, alocative adjunct, an accusative object, and a verb, presented in a pseudo-randomized wayon the computer screen before each trial. Results of the experiment indicate that Koreanspeakers produce the temporal adjunct earlier than the locative one irrespective of themanipulated length difference between the adjuncts. This ‘time-before-place’ preference isargued to reflect the production strategy to put the sentence constituents describing theevent structure as closely as possible, thereby minimizing the cost for communicating thepropositional contents of the predicate. The underlying assumption of this interpretationis that locative adjuncts belong to the necessary part of the event description, whereasthe temporal adjuncts do not. We conclude that even in free word order languages likeKorean, word order might well be constrained by various processing strategies operatingat the performance level for a more efficient communication.

문장 정서가와 이모티콘 정서가의 통합 처리에대한 ERP 증거

남윤주,홍우평 한국언어정보학회 2018 언어와 정보 Vol.22 No.3

Yunju Nam & Upyong Hong (2018). ERP evidence on the integrative processing of the emotional valences of sentence and emoticon. Language and Information 22.3, 45-65. The current study investigated the interaction between the emotional valence of a sentence and that of an emoticon in text processing. In text fragments including an emoticon followed by a declarative sentence, emotional valence of each text component (a sentence[S] or an emoticon[E]) was manipulated in terms of emotional valences (positive[p] or negative[n]) and their combination patterns (same or different). 40 target text fragments were distributed in 4 conditions (pS+pE, nS+nE, nS+pE, pS+nE), and 24 Korean speakers’ neural responses were recorded at the position of emoticon, while they read the text in word by word (plus a text-final emoticon) fashion. In addition, participants were required to categorize the emotional valence of each text ([p] or [n]) directly after the occurrence of the emoticon. Compared to the baseline conditions in which sentences and emoticons were of same emotional valence, the early N400 component which reflects the detection of semantic anomaly was elicited only in the nS+pE, and not in the pS+nE condition. This implies that the negative emotional valence of a sentence collides strongly with the conflicting emotional valence of the following emoticon, whereas the positive emotional valence of a sentence does not. Moreover, the emotional value of the whole text was categorized as largely identical to that of the sentence (86% [n] in the nS+pE condition and 76% [p] in the pS+nE condition). Taken together, the current study demonstrates that the emotional valence of a text including both language and image information tends to be determined by the language information, and the strength of the so-called negative bias effect varies depending on which text component (language or image) contains the negative emotional value. (Konkuk University)

어머니의 양육행동 및 정서표현과 유아의 창의적 인성 간의 관계에서 자아존중감의 매개효과

남윤주 한국아동심리치료학회 2017 한국아동심리치료학회지 Vol.12 No.2

This study examined the mediating effects of self-esteem on the mothers' parenting behavior, emotional expression and the creative personality of the children. A survey was conducted in Kwang ju and Chonnam of 259 mothers with children from 3-5 years old. Based on the data, Pearson's correlations between variables were analyzed, and hierarchical regression analyses were conducted to identify the direct and indirect effects of the mothers' parenting behavior, emotional expression and self-esteem on the creative personality of the children. The study found significant correlations among all four variables studied. In particular, self-esteem acted as a partial mediator in the relationship between the mothers' parenting behavior, emotional expression and creative personality of the children. The results suggest that increasing self-esteem in mothers may edify the creative personality in their children.

Workspace Optimization and Kinematic Performance Evaluation of 2-DOF Parallel Mechanisms

남윤주,박명관 대한기계학회 2006 JOURNAL OF MECHANICAL SCIENCE AND TECHNOLOGY Vol.20 No.10

Toward a unified account of the length effects in sentence production and comprehension

남윤주,홍우평,윤홍옥 경희대학교 언어정보연구소 2016 언어연구 Vol.33 No.1

Our research investigated how the long-before-short (LbS) preference affects sentence production and sentence comprehension, including the interconnectedness between the behavior of speakers and comprehenders by manipulating the relative length of the direct or indirect objects in ditransitive sentences in Korean. As a result, significant LbS preferences were observed not only in the production study where participants were asked to arrange the pre-given sentence fragments orally, but also in the comprehension study where the eye-movements of the participants were measured for reading the complete sentences. Moreover, our linear mixed-effect model revealed that the behavior of the speakers and comprehenders were closely related in a way that the structures speakers were more likely to produce were easier for comprehenders to understand. Our results are attributable to a language universal processing strategy to pack the heads of arguments and the predicate as closely as possible, for the facilitation of argument integration.

Kinematics and Optimization of 2-DOF Parallel Manipulator with Revolute Actuators and a Passive Leg

남윤주,박명관 대한기계학회 2006 JOURNAL OF MECHANICAL SCIENCE AND TECHNOLOGY Vol.20 No.6

Virtual excavator simulator featuring HILS and haptic joysticks

남윤주,박명관 대한기계학회 2015 JOURNAL OF MECHANICAL SCIENCE AND TECHNOLOGY Vol.29 No.1

This paper presents a virtual excavator simulator featuring hardware-in-the loop-simulation (HILS) technology and haptic joysticks. First, the technical concept of the virtual excavator simulator is proposed. Then, the mathematical relations describing the behavior of theexcavator are derived for the software environment. Next, for reflecting the nonlinear and dynamic characteristics of the hydraulic systemin the excavator, the simulation software is integrated with the hydraulic system hardware. In addition, for improving the interaction performancebetween the operator and the simulator, MR fluid actuator based haptic joysticks are employed. The experimental performanceevaluation verified that the proposed concept of the virtual excavator simulator is effective and practical from the viewpoint of the realityimprovement.