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Keywords:

  • Androgen;
  • Hand prints;
  • Finger prints;
  • Steroids;
  • Hormones;
  • Prenatal development;
  • Geschwind Hypothesis;
  • Wisconsin Regional Primate Center

Abstract

Dermatoglyphic ridge counts of the prints of 59 rhesus monkeys (Macaca mulatta) whose mothers had been treated with injections of testosterone during their pregnancies were studied to determine the effect of the day the hormone began to be administered, the amount of hormone administered, and the number of days of hormone administration upon the dermatoglyphic variation of the offspring. Of the three hormone variables, only the day of beginning administration (STARTDAY) was significantly associated with dermatoglyphic variation, and its positive significance was demonstrated with the ridge counts of Area I on both the left and right hand, Area II of the left hand, and the total ridge counts of both hands. These results are discussed within the context of the timing of the dermatoglyphic window, and the differences in the findings between the monkey and earlier human studies are addressed. © 1994 Wiley-Liss, Inc.