Генетикалық тартымдылық гипотезасы

Hypothesis that attraction may be a product of genetic similarities

Genetic sexual attraction is a theory that attraction may be a product of genetic similarities. There is
"little scientific evidence" for the position, The term is also used for a supposed phenomenon in which biologically related persons separated at a young age develop intense feelings—including sexual attraction—upon the restoration of contact.

The term was popularized in the United States in the late 1980s by Barbara Gonyo, the founder of Truth Seekers in Adoption, a Chicago based support group for adoptees and their new found relatives. She developed sexual feelings for her son when she met him after he was adopted away, but he did not want to be part of any such contact. which normally desensitizes biologically related persons to later sexual attraction. Another suggested explanation for the phenomenon is possible narcissistic feelings. Although reported frequently as anecdote in the field of psychology, there are no studies showing that people are sexually attracted to those genetically similar to them. Studies of MHC genes show that unrelated people are less attracted to those genetically similar to them. However, in mice, this lack of attraction can be reversed by adoption. Catherine MacAskill, an adoption and child sexual abuse expert, has suggested that "genetic sexual attraction" cases seem to be associated with sudden unplanned meetings which lack the proper safeguards of a thoroughly prepared reunion.

Critics of the hypothesis have called it pseudoscience. In a Salon piece, Amanda Marcotte called the concept "half baked pseudoscientific nonsense that people dreamed up to justify continuing unhealthy, abusive relationships". Many have noted the lack of research on the subject. While acknowledging the "phenomenon of genetic sexual attraction", Eric Anderson, a sociologist and sexologist, noted in a 2012 book that "[t]here is only one academic research article" on the subject, and he critiqued the paper for using "Freudian psycho babble".