The Effect of Hangul Print Size on Reading Speed of Young and Older Adults in a Computer Environment

본 연구에서는 컴퓨터 환경에서 한글 글자 크기가 청년과 노인의 읽기 속도에 미치는 영향을 검토하였다. 인터넷에서 상용되는 글자 크기를 기준으로 0.25∼16배의 7가지 글자 크기 조건에서 측정한 문장 읽기 정확도에 커브 피팅 기법을 적용하여 읽기 속도 곡선을 도출하고, 청년과 노인의 글자 크기 임계치(critical print size)와 최대 읽기 속도(maximum reading speed)를 비교하였다. 글자 크기 임계치는 최대 읽기 속도를 산출하는 최소 글자 크기로서, 효율적인 읽기 수행을 위해 필요한 글자 크기이다. 분석 결과, 청년과 노인의 읽기 속도는 글자 크기 시각도 0.13°에서부터 글자 크기가 커질수록 급격히 증가하다가 글자 크기 임계치에서 최대 읽기 속도에 도달한 후 8.32°까지 일정하게 유지되었다. 글자 크기 임계치는 청년 0.41°, 노인 0.52°로, 노인의 글자 크기 임계치가 더 컸다. 최대 읽기 속도(wpm)는 청년 296, 노인 208로, 노화에 따른 전반적인 읽기 속도 저하가 관찰되었다. 본 연구 결과는 가장 효율적인 읽기 수행을 유도하는 글자 크기가 청년과 노인에게서 상이하게 나타나며, 읽기 수행을 최대화하기 위해서는 각 연령 집단에 적합한 글자 크기로 제시할 필요가 있음을 시사한다.

keywords: 한글, 글자 크기, 노화, 읽기 속도, 연령, 한국어, Hangul, print size, aging, reading speed, age, Korean

Abstract

In this study we examined the effect of Hangul print size on reading speed of young and older adults in a computer environment. The accuracy of sentence reading was measured under the 7 conditions of print sizes, 0.25∼16 times as great as a regular print size for the Internet. The reading speed curve was drawn by applying the curve fitting method to the reading accuracy data. The critical print size(CPS) and the maximum reading speed of young and older adults were compared. The CPS, the smallest print size that can be read with the maximum speed, is at least required for the effective reading performance. The results showed that the reading speed of young and older adults started increasing at the print size of visual angle 0.13° and went up rapidly on line with the print size. The maximum reading speed was reached at the CPS and maintained until the print size of 8.32°. The CPS of older adults, 0.52°, was greater than that of young adults, 0.41°. The maximum reading speed(wpm) were 296 for young adults and 208 for older adults, showing the overall slowdown of reading speed by aging. Our results suggest that the critical print sizes which induce the most effective reading performance are different between young and older adults, and that it is necessary to use a suitable print size for each age group to maximize the reading performance.

keywords: 한글, 글자 크기, 노화, 읽기 속도, 연령, 한국어, Hangul, print size, aging, reading speed, age, Korean

참고문헌

김선경, 이혜원 (2007). 한글단어재인에서 청년과 노인의 의미점화효과. 한국심리학회지: 실험, 19(4), 279-297.

박종한, 권용철 (1989). 노인용 한국판 Mini-Mental State Examination(MMSE-K)의 표준화 연구 - 제 2편: 구분점 및 진단적 타당도. 신경정신의학, 28(3), 508- 513.

송예리, 이혜원 (2010). 정상시력과 저시력 읽기에서 맥락효과. 인지과학, 21(2), 339- 357.

Akutsu, H., Legge, G. E., Ross, J. A., & Schuebel, K. J. (1991). Psychophysics of reading. X. Effects of age-related changes in vision. Journal of Gerontology: Psychological Sciences, 46, 325-331.

Alotaibi, A. Z. (2007). The effect of font size and type on reading performance with Arabic words in normally sighted and simulated cataract subjects. Clinical and Experimental Optometry, 90, 203-206.

Chung, S. T. L., Mansfield, J. S., & Legge, G. E. (1998). Psychophysics of reading. XVIII. The effect of print size on reading speed in normal peripheral vision. Vision Research, 38, 2949-2962.

Fine, E. M., Rubin, G. S., Hazel, C. A., & Petre, K. L. (1999). Are the benefits of sentence context different in central and peripheral vision? Optometry and Vision Science, 76, 764-769.

Haegerstrom-Portnoy, G., Schneck, M. E., & Brabyn, J. A. (1999). Seeing into old age: Vision function beyond acuity. Optometry and Vision Science, 76, 141-158.

Kemper, S., & Liu, C.-J. (2007). Eye movements of young and older adults during reading. Psychology and Aging, 22, 84-93.

10.

Ketcham, C. J., & Stelmach, G. E. (2001). Age-related declines in motor control. In J. E. Birren & K. W. Schaie (Eds.), Handbook of psychology of aging (5th ed., pp.313-348). CA: Academic Press.

11.

Ledvij, M. (2003). Curve fitting made easy. The Industrial Physicist, 9, 24-27.

12.

Legge, G. E., & Bigelow, C. A. (2011). Does print size matter for reading? A review of findings from vision science and typography. Journal of Vision, 11, 1-22.

13.

Legge, G. E., Cheung, S. H., Yu, D., Chung, S. T. L., Lee, H. -W., & Owens, D. P. (2007). The case for the visual span as a sensory bottleneck in reading. Journal of Vision, 7, 1-15.

14.

Legge, G. E., Mansfield, J. S., & Chung S. T. L. (2001). Psychophysics of reading. XX. Linking letter recognition to reading speed in central and peripheral vision. Vision Research, 41, 725-743.

15.

Legge, G. E., Pelli, D. G., Rubin, G. S., & Schleske, M. M. (1985). Psychophysics of reading. I. Normal vision. Vision Research, 25, 239-252.

16.

Lott, L. A., Schneck, M. E., Haegerström-Portnoy, G., Brabyn, J. A., Gildengorin, G. L., & West, C. G. (2001). Reading performance in older adults with good acuity. Optometry and Vision Science, 78, 316-324.

17.

Pelli, D. G., Tillman, K. A., Freeman, J., Su, M., Berger, T. D., & Majaj, N. J. (2007). Crowding and eccentricity determine reading rate. Journal of Vision, 7, 1-36.

18.

Rayner, K., Castelhano, M. S., & Yang, J. (2009). Eye movements and the perceptual span in older and younger readers. Psychology and Aging, 24, 755-760.

19.

Salthouse, T. A., Hancock, H. E., Meinz, E. J., & Hambrick, D. Z. (1996). Interrelations of age, visual acuity, and cognitive functioning. Journal of Gerontology, 51B, 317-330.

20.

Sass, S., Legge, G. E., Lee, H.-W. (2006). Low-vision reading speed: Influences of linguistic inference and aging. Optometry and Vision Science, 83, 166-177.

21.

Saxton, J. A., Ratcliff, G., Dodge, H., Pandav, R., Baddeley, A., & Ganguli, M. (2001). Speed and capacity of language processing test: Normative data from an older American community-dwelling sample. Applied Neuropsychology, 8, 193-203.

22.

Verhaeghen, P. (2003). Aging and vocabulary score: A meta-analysis. Psychology and Aging, 18, 332-339.

23.

Wichmann, F. A., & Hill, N. J. (2001). The psychometric function: I. Fitting, sampling, and goodness of fit. Perception and Psychophysics, 63, 1293-1313.

24.

Yu, D., Cheung, S.-H., Legge, G. E., & Chung, S. T. L. (2007). Effect of letter spacing on visual span and reading speed. Journal of Vision, 7, 1-10.

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논문 상세

Vol.27 No.3

컴퓨터 환경에서 한글 글자 크기가 청년과 노인의 읽기 속도에 미치는 영향

The Effect of Hangul Print Size on Reading Speed of Young and Older Adults in a Computer Environment

초록

Abstract

참고문헌

한국심리학회지: 인지 및 생물