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ISSN : 1226-9654

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논문 투고

Vol.20 No.2

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한글 글자 지각에서 밀집(crowding) 효과에 관한 연구

The crowding effects in character recognition in Hangul

한국심리학회지: 인지 및 생물 / The Korean Journal of Cognitive and Biological Psychology, (P)1226-9654; (E)2733-466X
2008, v.20 no.2, pp.109-122
https://doi.org/10.22172/cogbio.2008.20.2.005
이혜원 (이화여자대학교)
이혜원. (2008). 한글 글자 지각에서 밀집(crowding) 효과에 관한 연구. 한국심리학회지: 인지 및 생물, 20(2), 109-122, https://doi.org/10.22172/cogbio.2008.20.2.005

초록

읽기에서 밀집효과는 주변 철자들로 인해 표적 철자의 재인이 방해받는 현상을 말한다. 본 연구에서는 한글 글자 지각에서 밀집 효과를 중심시와 주변시에서 살펴보았다. 실험 1에서 이심율의 방향(수평, 수직) 및 글자 유형(받침글자, 민글자)을 구분하여 밀집효과를 검토한 결과, 밀집효과는 중심시에서는 미미하나 주변시야에서 뚜렷이 관찰되었고, 수직적 주변시보다는 수평적 주변시에서 상대적으로 크게 나타났으며, 좌측 주변시보다 우측 주변시에서 밀집효과가 줄어드는 비대칭적 경향을 보였다. 실험 2에서는 인접자극의 유형에 따라 밀집효과가 어떤 영향을 받는지 알아보기 위해 네 가지 인접자극 조건(단독, 단어, 무선글자열, X-인접)에서 밀집효과를 비교하였다. 그 결과, 중심시에서는 어느 조건에서도 밀집효과가 발견되지 않았으나, 주변시에서는 인접자극 조건에 따라 다른 양상의 결과를 보였다. 단어조건은 단독조건보다 오히려 지각율이 높아, 역-밀집현상이라고 부를 수 있는 결과를 보였다. 이는 주변 자극에 의해 형성된 의미 맥락이 밀집의 부적 영향을 상쇄시킬 수 있음을 시사해 준다. 본 연구 결과는 주변시 읽기 수행의 저해 요인이 밀집일 가능성을 시사한다.

keywords
crowding effects, peripheral vision, central vision, eccentricity, reading, letter recognition, Hangul, 밀집, 글자 지각, 읽기, 주변시, 한글, crowding effects, peripheral vision, central vision, eccentricity, reading, letter recognition, Hangul

Abstract

The crowding effects in reading mean the phenomenon in which the recognition of target letters is interfered by adjacent letters. This study examined the crowding effects in Hangul character recognition in central and peripheral vision using 0, 5, and 10 degrees of eccentricities to the right and left of fixation (horizontal eccentricity) and up and down from fixation (vertical eccentricity). The results from Experiment 1 showed that the crowding effects were minimal in central vision, but were significantly large in both peripheral vision regardless of the locations of periphery (horizontal or vertical). The results from Experiment 2 showed that the crowding effects were cancelled out in peripheral vision by the semantic relations between the target and adjacent letters. Target letters were better recognized when they were presented with adjacent letters as a word than when they were presented in isolation. The present results suggest that crowding is related with the shrinkage of visual span in peripheral vision, which may result in reading difficulty in peripheral vision.

keywords
crowding effects, peripheral vision, central vision, eccentricity, reading, letter recognition, Hangul, 밀집, 글자 지각, 읽기, 주변시, 한글, crowding effects, peripheral vision, central vision, eccentricity, reading, letter recognition, Hangul

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한국심리학회지: 인지 및 생물

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