Does Fraternal Birth Order Predict Male Homosexuality, Bisexuality, and Heterosexual Orientation with Same-Sex Attraction? Evidence from a Greek-Speaking Sample from Greece
Sign Up to like & getrecommendations! Published in 2019 at "Archives of Sexual Behavior"
DOI: 10.1007/s10508-019-01466-3
Abstract: Studies have established that having older brothers is associated with an increased incidence of male homosexuality. This so-called fraternal birth order effect has been found in different times and cultural settings. The current study attempted… read more here.
Keywords: greek speaking; sex; male homosexuality; birth order ... See more keywords
Male homosexuality and maternal immune responsivity to the Y-linked protein NLGN4Y
Sign Up to like & getrecommendations! Published in 2017 at "Proceedings of the National Academy of Sciences of the United States of America"
DOI: 10.1073/pnas.1705895114
Abstract: Significance Gay men have, on average, a greater number of older brothers than do heterosexual men, a well-known finding within sexual science. This finding has been termed the fraternal birth order effect. Strong scientific interest… read more here.
Keywords: maternal immune; linked protein; sexual orientation; older brothers ... See more keywords
A method yielding comparable estimates of the fraternal birth order and female fecundity effects in male homosexuality
Sign Up to like & getrecommendations! Published in 2020 at "Proceedings of the Royal Society B: Biological Sciences"
DOI: 10.1098/rspb.2019.2907
Abstract: The fraternal birth order effect (FBOE) is the finding that older brothers increase the probability of homosexuality in later-born males, and the female fecundity effect (FFE) is the finding that the mothers of homosexual males… read more here.
Keywords: female fecundity; homosexuality; birth order; male homosexuality ... See more keywords