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Palm Prints The Patterns in the Interdigital Spaces
Published online by Cambridge University Press: 01 August 2014
Summary
1. The author has worked out a new systematics for the interdigital patterns of the palm based on the building up of digital triradius 3 and the extension of main line C with the following types of pattern as result: U (ulnar loops), R (radial loops), O (open-field pattern) and V (vestiges — incomplete patterns or “special” patterns).
2. A significant difference in frequency for the pattern distribution between the two hands has been found for U, R as well as for O-patterns (U-patterns and O-patterns appear with 6.5 respectively 14.3% higher frequency on the left hand, while R-patterns appear with 20.2% higher frequency on the right hand.).
3. The pattern distribution does not show any difference between the two sexes.
4. Calculations of correlations in tetrachoric tables have shown a strong mother-child correlation on the 99.9% level for U-pattern set against R-pattern for both the right and the left hand (r = 0.39-0.43).
- Type
- Research Article
- Information
- Acta geneticae medicae et gemellologiae: twin research , Volume 15 , Issue 3 , July 1966 , pp. 314 - 320
- Copyright
- Copyright © The International Society for Twin Studies 1966
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