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ISSN : 1226-9654

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Vol.20 No.2
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The crowding effects in character recognition in Hangul

The Korean Journal of Cognitive and Biological Psychology / 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

(2008). The crowding effects in character recognition in Hangul. The Korean Journal of Cognitive and Biological Psychology, 20(2), 109-122, https://doi.org/10.22172/cogbio.2008.20.2.005
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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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