Journal of the Korean Data and Information Science Society

The Korean Data and Information Science Society (한국데이터정보과학회)
권호 표지
DOI QR코드

DOI QR Code

Analysis on characteristics of person with disability using ratio of the lengths of the second to fourth digits

손가락 비율을 이용한 장애인 특성

  • Received : 2012.10.19
  • Accepted : 2012.11.13
  • Published : 2012.11.30
Download PDF
⟨ Previous Next ⟩

Abstract

Recent research has been mostly focused on the differences of prenatal sex hormone could affect the ratio of the lengths of the second to fourth digits (2D:4D) as well as the rate of several physiological characteristics. It has been suggested that digit ratios are thought to be associated with either higher prenatal testosterone levels or greater sensitivity to androgens, or both. However, a study of person with disabilities are rare in Korea. The purpose of this study was to compare patterns of the ratio (2D:4D) of the lengths of the second and fourth digits in persons with disabilities and students without disabilities. Also, we empirically analyze the characteristics of persons with disabilities. We found that finger length ratio (2D:4D) of men with disabilities and student without disabilities were lower than women with disabilities and student without disabilities. Therefore, it could be confirmed that finger length ratio (2D:4D) is sexually dimorphic trait. There were no correlations between finger length ratio (2D:4D) and age group in persons with disabilities. Therefore, as with person without disabilities, the 2D:4D ratio was negatively associated with a growth process of persons with disabilities. Finally, There was no difference correlations between finger length ratio (2D:4D) and level of disability in persons with intellectual disabilities. From this, one possible explanation for this is that if finger length ratio (2D:4D) is related to person with disability then current classification of the level of disability deserves further investigation.

태아기의 성 호르몬의 차이가 두 번째 손가락과 네 번째 손가락 길이의 비율을 비롯하여 여러가지 생리적 특성에 영향을 미칠 수 있다는 연구가 발표된 이후 관련 연구가 많이 진행되어 오고 있다. 그러나 우리나라 장애인을 대상으로 한 연구는 드물다. 이에 본 연구에서는 우리나라 장애인과 일반학생을 대상으로 손가락 비율 비교 및 장애인의 특성을 실증적으로 분석해 보았다. 그 결과, 장애인과 일반학생 모두에 있어 남자의 손가락 검지와 약지 길이 비율이 여자보다 낮아, 남녀별 성차가 있다는 일반적 사실을 확인 할 수 있었다. 다음으로, 남자와 여자 장애인 모두에서 나이대별 손가락 길이 비율은 통계적으로 유의한 차이가 없는 것으로 나타나, 일반인과 마찬가지로 장애인도 성장과정에서 검지와 약지 길이 비율이 크게 변하지 않음을 알 수 있었다. 마지막으로, 남자와 여자 지적 장애인 모두에 대하여 장애등급별 손가락 길이 비율도 통계적으로 유의하지 않은 것으로 나타난 바, 이로부터 손가락 검지와 약지 길이 비율이 장애여부와 관계가 있다는 점에 근거하면 현재의 장애등급 구분은 문제가 있다고 하겠다.

Keywords

References

  1. Austin E. J., Manning, J. T., McInroy, K. and Mathews, E. (2002). A preliminary investigation of the associations between personality, cognitive ability and digit ratio. Personality and Individual Differences, 33, 1115-1124. https://doi.org/10.1016/S0191-8869(02)00002-8
  2. Bailey, A. A., Hurd, L. H. (2005). Finger length ratio (2D:4D) correlates with physical aggression in men but not in women. Biological Psychology, 68, 215-222. https://doi.org/10.1016/j.biopsycho.2004.05.001
  3. Baker, F. (1888). Anthropological notes on the human hand. American Anthropologist, 1, 51-76. https://doi.org/10.1525/aa.1888.1.1.02a00040
  4. Breedlove, S. M., Willams, T. J., Pepitone, M. E., Christensen, S. E., Cooke, B. M., Huberman, A. D., Breedlove, N. J., Breedlove, T. J. and Jordan, C. L. (2000). Finger-length ratios and sexual orientation. Nature, 404, 455-456. https://doi.org/10.1038/35006555
  5. Burnell, S. L. (2003). Theoretical and applied issues in defining disability in labor market research. Journal of Disability Policy Studies, 14, 36-45. https://doi.org/10.1177/10442073030140010501
  6. Cho, H. J. (2010). The relationship between the putative marker of prenatal androgen exposure and physical fitness in elementary school students, Master Thesis, Seoul National University of Education, Seoul.
  7. Choi, B. H. (2000). A study on the digital formulae of Korean adults fingers. Korean Journal of Physical Anthropology, 13, 383-387. https://doi.org/10.11637/kjpa.2000.13.4.383
  8. Choi, K. and Kwon, S. (2007). Sex differences in ratio of the lengths of the second to forth digits(2D:4D). The Korean Journal of Growth and Development, 15, 155-159.
  9. Choi, K. H. and You, K. (2012). The comparison of finger length ratio (2D:4D) between soccer players and students in the university and its relationship with physical strength factors. Korean Journal of Sports Science, submitted. J
  10. Jo, H. (2011). Beyond the issue of grading disability. Journal of Rehabilitation Research, 15, 1-26.
  11. Kee, D. (2011). Characteristics of hand dimensions and hand scale for Koreans. Journal of the Korean Institute of Industrial Engineers, 37, 55-63. https://doi.org/10.7232/JKIIE.2011.37.1.055
  12. Kim, G. and Kim, K. (2010). The influence of digit ratio on consumption behavior. Korean Journal of Consumer and Advertising Psychology, 11, 183-211. https://doi.org/10.21074/kjlcap.2010.11.2.183
  13. Lee, E. (2009). Finger book, Godswin, Seoul.
  14. Lee, H. (2009). Correlation between directly measured and photocopy measured 2D:4D with TCI scales, Master Thesis, Hanyang University, Seoul.
  15. Manning, J. T., Scutt, D., Wilson, J. and Lewis-Jones, D. I. (1998). The ratio of 2nd and 4th digit ratio length: A predictor of sperm numbers and concentrations of testosterone hormone and estrogen. Human Reproduction, 13, 3000-3004. https://doi.org/10.1093/humrep/13.11.3000
  16. Manning, J. T., Barley, L. Walton, J., Lewis-Jones, D. I., Trivers, R. L. and Singh, D. (2000). The 2nd:4th digit ratio, sexual dimorphism, population difference, and reproductive success for sexually antagonistic genes? Evolution and Human Behavior, 21, 163-183. https://doi.org/10.1016/S1090-5138(00)00029-5
  17. Manning, J. T., Taylor, R. P. (2001). Second to forth digit ratio and male ability in sport: Implications for sexual selection in humans. Evolution and Human Behavior, 22, 61-69. https://doi.org/10.1016/S1090-5138(00)00063-5
  18. Manning, J. T. (2002). Digit ratio: A pointer to fertility, behavior and health, Rutgers University Press, New Brunswick, NJ.
  19. Manning, J. T., Morris, L. and Caswell, N. (2007). Endurance running and digit ratio(2D:4D): Implications for fatal testosterone effects on running speed and vascular health. American Journal of Human Biology, 19, 416-421. https://doi.org/10.1002/ajhb.20603
  20. McIntyre, M. H., Ellison, P. T., Lieberman, D. E., Demerath, E. and Towne, B. (2005). The development of sex differences in digit formular from infancy in the Fels longitudinal study. Proceedings of the Royal Society of London B, 272, 1473-1479. https://doi.org/10.1098/rspb.2005.3100
  21. Park, Y. (2010). Relationship between digit ratio (2D:4D) and physical fitness in middle and highschool Jodoka. The Journal of Korean Alliance of Marital Arts, 12, 227-237.
  22. Phelps V. R. (1952). Relative index finger length as a sex-influenced trait in man. American Journal of Human Genetics, 4, 72-89.
  23. Weis, S. E., Firker, A. and Hennig, J. (2007). Associations between the second to forth digit ratio and career interests. Personality and Individual Differences, 43, 485-493. https://doi.org/10.1016/j.paid.2006.12.017