Journal of the Korea Academia-Industrial cooperation Society (한국산학기술학회논문지)

The Korea Academia-Industrial cooperation Society (한국산학기술학회)
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Characteristics of 2nd to 4th Digit Ratio according to Type of Handedness in University Students

대학생의 손잡이 유형에 따른 손가락 길이비(2D:4D)의 특성

  • Kim, Sooil (Department of Anatomy, School of Medicine, Chungnam National University) ;
  • Cho, Keun-Ja (Department of Emergency Medical Service, Kongju National University)
  • 김수일 (충남대학교 의학전문대학원 해부학교실) ;
  • 조근자 (공주대학교 응급구조학과)
  • Received : 2012.11.26
  • Accepted : 2013.03.07
  • Published : 2013.03.31
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Abstract

The aim of this study is to identify characteristics of 2D:4D according to type of handedness. Data was collected from October, 4th, 2010 to April, 30th, 2012. After handedness assessment, 2nd and 4th finger length were measured by vernier calipers. This study showed remarkable gender difference of 2D:4D in left hand for left handers and right hand for right handers, However, there was no significant difference according to type of handedness in each gender. The correlation between left and right 2D:4D in males right handedness was higher than that of male left handedness, otherwise, in case of female, that of left handedness was higher than that of right handedness. The results of this study suggest that the 2D:4D of left handedness does not differ from that of right handedness, however, gender difference and correlation between left and right 2D:4D show different characteristics according to handedness.

본 연구의 목적은 손잡이 유형에 따른 손가락 길이비(2D:4D)의 특성을 파악하는데 있다. 자료수집은 2010년 10월 4일부터 2012년 4월 30일까지 실시되었다. 연구대상자들은 손잡이 유형 평가 후, 캘리퍼를 사용하여 양손의 집게손가락과 반지손가락의 길이가 측정되었다. 연구 결과, 2D:4D는 왼손잡이는 왼손에서, 오른손잡이는 오른손에서 성차이가 두드러지게 나타났다. 그러나 손잡이 유형에 따라서는 남녀 모두 유의한 차이가 없었다. 남자에서 왼손잡이는 좌우 2D:4D 사이에 차이가 없었으나, 오른손잡이는 오른손이 유의하게 2D:4D가 낮은 것으로 나타났다. 좌우 2D:4D의 상관관계는 남자에서는 오른손잡이의 상관관계가 높았고, 여자에서는 왼손잡이의 상관관계가 높았다. 결론적으로, 2D:4D는 한국인에서 손잡이 유형사이에 차이는 없으나, 성차이와 좌우 2D:4D의 상관관계는 손잡이 유형에 따라 다른 특성을 나타낸다고 할 수 있을 것이다.

Keywords

References

  1. M. Annett, Handedness and brain asymmetry: The right shift theory. 1st ed. New York: Taylor and Francis Inc., 2002.
  2. I. B. Perelle, L. Ehrman, "On the other hand", Behav Genet, 35, 3, pp. 343-350, 2005. DOI: http://dx.doi.org/10.1007/s10519-005-3226-z
  3. S. I. Kim, W. S. Kim, K. J. Cho, "The type of handedness and correlation analysis of handedness assessment items on university students in Korea", Korean J Phys Anthropol 21, pp. 245-253, 2008. https://doi.org/10.11637/kjpa.2008.21.3.245
  4. R. E. Steenhuis, M. P. Bryden, "Different dimensions of hand preference that relate to skilled and unskilled activities", Cortex, 25, pp. 289-304, 1989. https://doi.org/10.1016/S0010-9452(89)80044-9
  5. M. Peters, K. Murphy, "Cluster analysis reveals at least three, and possibly five distinct handedness groups", Neuropsychologia, 30, pp. 373-380, 1992. DOI: http://dx.doi.org/10.1016/0028-3932(92)90110-8
  6. M. Peters, S. Reimers, J. T. Manning, "Hand preference forwriting and associations with selected demographic and behavioral variables in 255,100 subjects: The BBC internet study", Brain Cogn, 62, 2, pp. 177-189, 2006. DOI: http://dx.doi.org/10.1016/j.bandc.2006.04.005
  7. E. Vuoksimaa, M. Koskenvuo, R. J. Rose, et al., "Origins of handedness: A nationwide study of 30 161 adults", Neuropsychologia, 47, 5, pp. 1294-1301, 2009. DOI: http://dx.doi.org/10.1016/j.neuropsychologia.2009.01.007
  8. J. W. Miller, S. Jayadev, C. B. Dodrill, et al., "Gender differences in handedness and speech lateralization related to early neurologic insults", Neurology, 65, pp. 1974-1975, 2005. DOI: http://dx.doi.org/10.1212/01.wnl.0000188900.91741.ea
  9. B. J. Cardinal, "Does physical activity behavior vary by handedness?", Am J Health Promot, 19, pp. 397-400, 2005. DOI: http://dx.doi.org/10.4278/0890-1171-19.6.397
  10. M. Ferrari, "Cognitive performance and left-handedness: Comparative analyses in adults with seizures, physical, psychological and learning disorders in a rehabilitation setting", J Rehabil, 73, pp. 47-54, 2007.
  11. D. V. Bishop, "Handedness, clumsiness and developmental language disorders", Neuropychologia, 28, pp. 681-690, 1990. DOI: http://dx.doi.org/10.1016/0028-3932(90)90123-6
  12. J. Shaw, G. Claridge, K. Clark, "Schizotypy and the shift from dextrality: a study of handedness in a large non-clinical sample", Schizophr Res, 50, pp. 181-189, 2001. DOI: http://dx.doi.org/10.1016/S0920-9964(00)00167-5
  13. G. Dellatolas, S. Luciani, A. Castresana, et al., "Pathological left-handedness. Left handedness correlatives in adult epileptics", Brain, 116, pp. 1565-1574, 1993. DOI: http://dx.doi.org/10.1093/brain/116.6.1565
  14. G. Andreou, G. Krommydas, K. I. Gourgoulianis, et al., "Handedness, asthma and allergic disorders: is there an association?", Psychology, Health & Medicine, 7, pp. 53-60, 2002. DOI: http://dx.doi.org/10.1080/13548500120101559
  15. J. Hönekopp, L. Bartholdt, L. Beier, et al., "Second to fourth digit length ratio (2D:4D) and adult sex hormone levels: New data and a meta-analytic review", Psychoneuroendocrinology, 32, pp. 313-321, 2007. DOI: http://dx.doi.org/10.1016/j.psyneuen.2007.01.007
  16. J. T. Manning, L. Barley, J. Walton, et al., "The 2nd:4th digit ratio, sexual dimorphism, population differences, and reproductive success: evidence for sexually antagonistic genes?", Evol Hum Behav, 21, pp. 163-183, 2000. DOI: http://dx.doi.org/10.1016/S1090-5138(00)00029-5
  17. A. A. Bailey, P. L. Hurd, "Finger length ratio (2D:4D) correlates with physical aggression in men but not in women", Biol Psychol, 68, pp. 215-222, 2005. DOI: http://dx.doi.org/10.1016/j.biopsycho.2004.05.001
  18. T. H. Rammsayer, S. J. Troche, "Sexual dimorphism in second-to-fourth digit ratio and its relation to gender-role orientation in males and females", Pers Individ Dif, 42, pp. 911-920, 2007. DOI: http://dx.doi.org/10.1016/j.paid.2006.09.002
  19. J. T. Manning, A. Stewart, P. E. Bundred, et al., "Sex and ethnic differences in 2nd to 4th digit ratio of children", Early Hum Dev, 80, pp. 161-168, 2004. DOI: http://dx.doi.org/10.1016/j.earlhumdev.2004.06.004
  20. N. Geschwind, A. M. Galaburda, "Cerebral lateralization. Biological mechanisms, association and pathology: a hypothesis and a program for research", Arch Neurol, 43, pp. 428-654, 1985. DOI: http://dx.doi.org/10.1001/archneur.1985.04060050026008
  21. J. T. Manning, R. L. Trivers, R. Thornhill, "The 2nd to 4th digit ratio and asymmetry of hand performance in Jamaican children", Laterality, in press, 1999.
  22. J. Kallai, A. Csatho, F. Kover, et al., "MRI-assessed volume of left and right hippocampi in females correlates with the relative length of the second and fourth fingers (the 2D:4D ratio)", Psychiatry Res: Neuroimaging, 140, 2, pp. 199-210, 2005. DOI: http://dx.doi.org/10.1016/j.pscychresns.2004.05.010
  23. R. Trivers, J. Manning, A. Jacobson, "A longitudinal study of digit ratio (2D:4D) and other finger ratios in Jamaican children", Horm Behav, 49, pp. 150-156, 2006. DOI: http://dx.doi.org/10.1016/j.yhbeh.2005.05.023
  24. A. Wakabayashi, Y. Nakazawa, "On relationships between digit ratio (2D:4D) and two fundamental cognitive drives, empathizing and systemizing, in Japanese sample", Pers Individ Dif, 49, pp. 928-931, 2010. DOI: http://dx.doi.org/10.1016/j.paid.2010.07.032
  25. J. T. Manning, B. Fink, "Digit ratio (2D:4D) and aggregate personality scores across nations: Data from the BBC internet study", Pers Individ Dif, 51, pp. 387-391, 2011. DOI: http://dx.doi.org/10.1016/j.paid.2010.05.040
  26. J. R. Beech, I. C. Mackintosh, "Do differences in sex hormones affect handwriting style? Evidence from digit ratio and sex role identity as determinants of the sex of handwriting", Pers Individ Dif, 39, pp. 459-468, 2005. DOI: http://dx.doi.org/10.1016/j.paid.2005.01.024
  27. B. Fink, J. T. Manning, N. Neave, et al., "Second to fourth digit ratio and hand skill in Austrian children", Biol Psychol, 67, pp. 375-384, 2004. DOI: http://dx.doi.org/10.1016/j.biopsycho.2004.03.012
  28. A. A. Beaton, R. Rudling, C. Kissling, et al., "Digit ratio (2D:4D), salivary testosterone and handedness", Laterality, 16, pp. 136-155, 2011. DOI: http://dx.doi.org/10.1080/13576500903410369
  29. J. M. Tanner. Foetus into man: Physical growth from conception to maturity. Harvard University Press, Mass: Cambridge, 1990.
  30. J. T. Manning, L. Morris, N. Caswell, "Endurance running and digit ratio (2D:4D): Implications for fetal testosterone effects on running speed and vascular health", Am J Hum Biol, 19, pp. 416-421, 2007. DOI: http://dx.doi.org/10.1002/ajhb.20603
  31. C. M. Falter, M. Arroyo, G. J. Davis, "Testosterone: Activation or organization of spatial cognition?", Biol Psychol, 73, pp. 132-140, 2006. DOI: http://dx.doi.org/10.1016/j.biopsycho.2006.01.011
  32. N. Tester, A. Campbell, "Sporting achievement: What is the contribution of digit ratio?" J Pers, 75, pp. 663- 677, 2007. DOI: http://dx.doi.org/10.1111/j.1467-6494.2007.00452.x
  33. J. Honekopp, J. T. Manning, C. Muller, "Digit ratio (2D:4D) and physical fitness in males and females: Evidence for effects of prenatal androgens on sexually selected traits", Horm Behav, 49, 4, pp. 545-549, 2006. DOI: http://dx.doi.org/10.1016/j.yhbeh.2005.11.006