한글 단어 재인에 영향을 미치는 변인: 음절 형태를 중심으로
Variables affecting Korean word recognition: focusing on syllable shape
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시각 단어 재인에 영향을 미치는 변인으로는 단어 빈도, 단어 길이, 이웃단어, 단어 형태 등이 밝혀진 바 있다. 단어 형태 변인은 한글이 영어와는 글자 체계가 다르기 때문에 형태 정보가 단어 처리에 다른 방식으로 영향을 미칠 수 있다. 본 연구는 게스탈트의 연속성 원리를 한글에 적용하여 한글 단어의 처리 단위를 알아보고, 음절 형태가 한글 단어 재인에 영향을 미치는지 검증하고자 하였다. 실험 1에서는 3음절 단어를 사용하여 음절 유형(평소 읽기방향이 연속성 원리에 부합하는 ‘가로집자’형(예: “가”), 부합하지 않는 ‘세로집자’형(예: “고”)과 글자 제시 방향(가로, 세로)을 조작하였다. 어휘 판단 시간의 분석 결과, 제시 방향에 상관없이 ‘가로집자’형의 처리 속도가 ‘세로집자’형보다 빨랐다. 실험 2에서는 차폐 점화를 사용하여 음절 유형(‘가로집자’와 ‘세로집자’형) 및 점화 자극과 목표 자극의 시각적 관계(동일, 유사, 상이)를 조작하였다. 점화자극과 목표자극의 음절집자 형태에 따라서 수행에 차이가 있었으며 이는 음절 형태가 단어 재인에 미친다는 것을 시사한다.
Abstract
Recent studies have demonstrated that word frequency, word length, neighborhood and word shape may have a role in visual word recognition. Shape information may affect word processing in different ways as Korean letter system works differently than that of English. The purpose of this study was to apply Gestalt's continuity principle to Korean alphabetic script(hangul), and to investigate the processing unit of hangul and to verify whether syllable shape affects word recognition in hangul. In experiment 1, three syllable words were utilized and two variables; 1) syllable types(horizontal syllable shape, e.g., “가”. vertical syllable shape, e.g., “고”) and 2) presenting direction (horizontal, vertical) were manipulated. Whereas “가” meets the criteria of Gestalt's continuity principle, “고” does not. Based on the result of lexical decision time, horizontal syllable shape type showed significant performance improvement, when compared to vertical syllable shape type, regardless of the presenting direction. In experiment 2, syllable types(horizontal syllable shape, vertical syllable shape) and the visual relationship between prime and target(identical, similar, different) were manipulated by using masked priming. There was a significant performance difference between the visual relationship of prime and target, and thus the effect of syllable shape was verified.
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