Abstract:
:The fingers in the adult human hand differ in length and in distal extent. The literature agrees that in the clear majority of males, the distal extent of the ring finger tends to be relatively greater (using the middle finger as standard) than the index finger. However, the results for females vary considerably, with some studies reporting that females show a similar pattern to that of males, while others suggest that the prevalence of a longer index finger is relatively or absolutely more common in females. We provide a review of the literature, and a set of data for both finger length and distal fingertip extent of the finger for a contemporary cohort of young adult females and males (n = 502). Finger length measures favor the ring finger of both sexes, with smaller between-finger differences for females than for males. However, while the distal fingertip extent favors the ring finger of both hands in males, in females the left hand shows no significant differences, and the right hand shows a small index finger advantage. Thus, the sexual dimorphism in finger measures is more strongly expressed in the distal extent of fingertips than in the length of fingers. The sex differences in distal fingertip extent derive from the index finger only, with a lesser distal extent of the index finger, relative to the middle finger, in males than in females.
journal_name
Am J Phys Anthropoljournal_title
American journal of physical anthropologyauthors
Peters M,Mackenzie K,Bryden Pdoi
10.1002/ajpa.10029subject
Has Abstractpub_date
2002-03-01 00:00:00pages
209-17issue
3eissn
0002-9483issn
1096-8644pii
10.1002/ajpa.10029journal_volume
117pub_type
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pub_type: 历史文章,杂志文章
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