A proposed formulation of palmar patterns with special reference to Jatavs and other Indian populations.
Frequencies of patterns with triradii, that is, whorls, loops, and tented arches have been studied on palms of 58 males and 70 females of the Jatav population of Western U. P., India. It is demonstrated that simple presentation of pattern combinations on two hands permits evaluation of pattern frequencies simultaneously in individuals and on hands; derivation of average pattern value or number of loops per area, and computation of pattern intensity index for palms, which is related but not equal to the number of triradii. The bimanual, sexual and area-specific trends and their interrelations have been further elucidated by applying this method. The convention of recording frequencies of patterns and vestiges per hand lacks efficiency for clinical, genetical or anthropological analyses and overestimates sex difference. The present data have been broadly compared with published Indian material, eliminating subjective classes as far as practicable.
D003878:Dermatoglyphics / Q000145:classification*; D005260:Female; D005828:Genetics, Population; D006801:Humans; D007194:India; D008297:Male