Liu et al.

2014 [34]

579 Chinese adults

C-1019G polymorphism of 5HT-1A gene was significantly associated with the odds of being single both before and after controlling psychosocial factors

5HT-1A gene influences the social and romantic behavior

Luo et al.

2016 [35]

1532 Chinese University students

The l/l allele carriers of 5-HTTLPR reported a higher satisfaction and a lower social interaction anxiety than s/s allele carriers.

5HT in right ventral prefrontal cortex and anterior cingulate gyrus relates to social and romantic behavior