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Lexico-semantic interactions during the visual and spoken recognition of homonymous Korean Eojeols

한국어 시·청각 동음동철이의 어절 재인에 나타나는 어휘-의미 상호작용

  • Kim, Joonwoo (Department of Psychology, Korea University) ;
  • Kang, Kathleen Gwi-Young (Department of Psychology, Korea University) ;
  • Yoo, Doyoung (Department of Korean Language and Literature, Korea University) ;
  • Jeon, Inseo (Department of Korean Language and Literature, Korea University) ;
  • Kim, Hyun Kyung (Department of Korean Language and Literature, Korea University) ;
  • Nam, Hyeomin (Department of Korean Language and Literature, Korea University) ;
  • Shin, Jiyoung (Department of Korean Language and Literature, Korea University) ;
  • Nam, Kichun (Department of Psychology, Korea University)
  • 김준우 (고려대학교 심리학과) ;
  • 강귀영 (고려대학교 심리학과) ;
  • 유도영 (고려대학교 국어국문학과) ;
  • 전인서 (고려대학교 국어국문학과) ;
  • 김현경 (고려대학교 국어국문학과) ;
  • 남현민 (고려대학교 국어국문학과) ;
  • 신지영 (고려대학교 국어국문학과) ;
  • 남기춘 (고려대학교 심리학과)
  • Received : 2020.10.11
  • Accepted : 2021.02.11
  • Published : 2021.03.31

Abstract

The present study investigated the mental representation and processing of an ambiguous word in the bimodal processing system by manipulating the lexical ambiguity of a visually or auditorily presented word. Homonyms (e.g., '물었다') with more than two meanings and control words (e.g., '고통을') with a single meaning were used in the experiments. The lemma frequency of words was manipulated while the relative frequency of multiple meanings of each homonym was balanced. In both experiments using the lexical decision task, a robust frequency effect and a critical interaction of word type by frequency were found. In Experiment 1, spoken homonyms yielded faster latencies relative to control words (i.e., ambiguity advantage) in the low frequency condition, while ambiguity disadvantage was found in the high frequency condition. A similar interactive pattern was found in visually presented homonyms in the subsequent Experiment 2. Taken together, the first key finding is that interdependent lexico-semantic processing can be found both in the visual and auditory processing system, which in turn suggests that semantic processing is not modality dependent, but rather takes place on the basis of general lexical knowledge. The second is that multiple semantic candidates provide facilitative feedback only when the lemma frequency of the word is relatively low.

본 연구는 중의성을 가진 어휘가 심성 어휘집에 표상된 방식과 감각 양상에 따른 처리 과정을 알아보기 위하여 한국어 동음동철이의 어절의 시·청각 재인 과정을 조사하였다. 청각 어절 판단 과제(실험 1)와 시각 어절 판단 과제(실험 2)를 이용한 두 실험에서 두 가지 이상의 의미를 가진 동음동철이의 어절(예: '물었다')과 단일한 의미만을 가진 통제 어절(예: '고통을')이 사용되었다. 어절 자극들의 누적 빈도는 조작하는 한편, 각 동음동철이의 어절의 다양한 의미가 가지는 상대적 빈도는 통제하였다. 어절 판단 과제를 사용한 두 실험 모두에서 유의한 빈도의 주효과와 함께 의미 수에 따른 어절 유형과 빈도 간의 상호작용이 발견되었다. 실험 1에서 청각적으로 제시된 동음동철이의 어절은 저빈도 조건에서 단의 어절에 비해 반응시간이 빠른 중의성 이득 효과가 나타난 반면, 고빈도 조건에서는 이와 반대로 비이득 효과가 나타났다. 마찬가지로 시각적으로 제시된 실험 2의 자극에서도 유사한 상호작용 패턴이 발견되었다. 본 연구 결과는 시각 및 청각 양상 모두에서 어휘-의미 처리가 상호의존적으로 이루어짐을 보여주며, 이는 의미 처리가 감각 의존적 단계보다는 일반적 어휘 지식 처리 단계에서 이루어질 가능성을 시사한다. 이와 더불어 의미 선택 과정에서 동음동철이의 어절이 가지는 다양한 의미의 후보군은 어절의 빈도가 상대적으로 낮을 때에만 촉진적 피드백을 제공함을 보여준다.

Keywords

References

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