Underlying Neurodevelopmental Basis To Account For The Lack Of Sexual Attraction Characteristic Of Asexuality

Arch Sex Behav. 2013 Sep 18. [Epub ahead of print]

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

"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."

http://www.ncbi.nlm.nih.gov/pubmed/24045903