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Central Pockets in Dermatoglyphic Analysis: Classification, Frequency, Twin and Family Data

Published online by Cambridge University Press:  01 August 2014

W. Vormittag  and
M. Weninger
W. Vormittag*
Affiliation:
Second Department of Internal Medicine, Vienna Ludwig Boltzmann Institute of Gerontology, Vienna
M. Weninger*
Affiliation:
Institute of Human Biology, Vienna
*
Medizinische Universitätsklinik, Garnisongasse 13, A-1090, Wien
Institut für Humanbiologie, Althanstrasse 14, A-1091 Wien, Austria

Abstract

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Central pockets were defined as small, loop-enclosed whorls whose quantitative values must not exceed the third part of the quantitative value of the loop or as small, whorl-like patterns in the core of a loop having at least one curved ridge with its convexity towards the opening of the loop. Applying this classification scheme, the frequency of central pockets was found to be 17.5% in 200 males and 17.0% in 200 females, but was significantly higher in a sample of 21 male and 22 female pairs of MZ twins (33.2% and 34.1%, respectively). Twin as well as family data (94 families with 269 children) pointed to a rather weak hereditary influence upon the formation of central pockets. Rudimentary central pockets occurred in 9.5% of males and 10.0% of females. Since no common genetic basis could be established for central pockets and rudimentary central pockets, the latter should not be scored as central pockets.

Keywords

Central pocketsDermatoglyphicsTwins
Type
Short Note
Information
Acta geneticae medicae et gemellologiae: twin research , Volume 33 , Issue 4 , October 1984 , pp. 575 - 578
Copyright
Copyright © The International Society for Twin Studies 1984

References

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