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Sex and side differences and correlations between quantitative palmar characteristics in a sample Sardinian
American Journal of Physical Anthropology
|March 1, 1975
Summary
Males exhibit more palmar ridges than females, with differences also noted between left and right palms. Ridge counts correlate with main line slope, particularly in males on the left hand.
Area of Science:
- Anthropology
- Genetics
- Forensic Science
Background:
- Palmar dermatoglyphics, the study of skin ridge patterns on palms, offers insights into human variation.
- Sex and side (left vs. right) are known factors influencing dermatoglyphic traits.
Purpose of the Study:
- To investigate sex-based and side-based differences in palmar dermatoglyphic characteristics.
- To analyze correlations between specific ridge counts and main line indices.
Main Methods:
- Quantitative analysis of four palmar dermatoglyphic characteristics in 809 individuals from Cagliari, Sardinia.
- Comparison of ridge counts (a-b, A-d) and main line indices between sexes and hands.
Main Results:
- Males showed higher a-b and A-d ridge counts and main line indices compared to females.
- The left palm generally had more ridges but a lower main line index than the right.
- Significant negative correlations were found between a-b ridge count and main line index/papillary number.
Conclusions:
- Palmar dermatoglyphics reveal distinct patterns between sexes and hands in the Sardinian population.
- Ridge patterns and main line configurations show complex interrelationships, influenced by sex and palm side.
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