Biological Markers of Asexuality: Handedness, Birth Order, and Finger Length Ratios in Self-identified Asexual Men and Women

  title={Biological Markers of Asexuality: Handedness, Birth Order, and Finger Length Ratios in Self-identified Asexual Men and Women},
  author={Morag A. Yule and L. Brotto and B. Gorzalka},
  journal={Archives of Sexual Behavior},
  • Morag A. Yule, L. Brotto, B. Gorzalka
  • Published 2014
  • Psychology, Medicine
  • Archives of Sexual Behavior
  • Human asexuality is defined as a lack of sexual attraction to anyone or anything and it has been suggested that it may be best conceptualized as a sexual orientation. Non-right-handedness, fraternal birth order, and finger length ratio (2D:4D) are early neurodevelopmental markers associated with sexual orientation. We conducted an Internet study investigating the relationship between self-identification as asexual, handedness, number of older siblings, and self-measured finger-lengths in… CONTINUE READING
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