반복 점화 과제를 이용하여 고유어 합성어의 형태소 처리와 표기 처리를 조사하였다. 실험 1은 단일어, 합성어, 무관련의 세 가지의 점화어 유형을 어두 위치에서 조작하고, 세 가지의 자극 개시 간격(SOA)에 따른 표기 처리의 변화 양상을 관찰하였다. 점화어와 표적어 간의 표기 중복은 SOA가 짧은 조건에서는 촉진 효과를, 긴 조건에서는 억제 효과를 산출하였다. 실험 2에서는 고유어의 형태소 처리를 다루었다. 형태소 중복, 표기 중복, 무관련의 세 가지의 점화어 유형을 어두와 어말 위치에서 조작하였고, 세 가지의 자극 개시 간격을 사용하여 자극쌍들을 제시하였다. 어두와 어말 위치 모두에서 그리고 세 가지 SOA 조건 모두에서 유의한 형태소 점화 효과가 나타났으며, 표기 억제 효과는 나타나지 않았다. 실험 1의 표기 촉진 효과와 실험 2의 형태소 촉진 효과는 본 연구에서 처음으로 관찰된 것으로서, 한자어를 사용한 선행 연구들의 결과는 한자어의 어휘적 특성에 기인한 것으로 모든 어종으로 일반화하기에는 문제가 있음을 시사한다.
Using the repetition priming paradigm the author investigated orthographic and morphological processing of native Korean words. In Experiment 1, monomorphemic, bimorphemic, and unrelated primes which shared an initial syllable with a target word were found to bring about facilitation for masked priming condition but inhibition for long SOA condition. In Experiment 2 morphological processing of native Korean words was examined with morphological, orthographic, and unrelated prime-target pairs. The hypothesis that size and direction of morphological priming is dependent on lexical characteristics of stimuli was also tested. Significant morphological priming was found irrespective of the position of a morpheme shared by prime and target on the three different SOAs, but orthographic inhibition was not found to be significant in any condition. The study succeeded in discovering orthographic facilitation and morphological facilitation in Korean word recognition for the first time, and this suggests that the failure to find morphological priming in previous studies might be closely related with the lexical characteristics of Sino-Korean words used as their stimuli. Based on the results, the author suggests that morphological priming is hard to find because of slow morphological processing and inhibitory orthographic processing resulting from ambiguous Kulja-morpheme correspondence of Sino-Korean words. Differences among word types and their consequences in lexical processing were discussed.
Using the repetition priming paradigm the author investigated orthographic and morphological processing of native Korean words. In Experiment 1, monomorphemic, bimorphemic, and unrelated primes which shared an initial syllable with a target word were found to bring about facilitation for masked priming condition but inhibition for long SOA condition. In Experiment 2 morphological processing of native Korean words was examined with morphological, orthographic, and unrelated prime-target pairs. The hypothesis that size and direction of morphological priming is dependent on lexical characteristics of stimuli was also tested. Significant morphological priming was found irrespective of the position of a morpheme shared by prime and target on the three different SOAs, but orthographic inhibition was not found to be significant in any condition. The study succeeded in discovering orthographic facilitation and morphological facilitation in Korean word recognition for the first time, and this suggests that the failure to find morphological priming in previous studies might be closely related with the lexical characteristics of Sino-Korean words used as their stimuli. Based on the results, the author suggests that morphological priming is hard to find because of slow morphological processing and inhibitory orthographic processing resulting from ambiguous Kulja-morpheme correspondence of Sino-Korean words. Differences among word types and their consequences in lexical processing were discussed.
