Familial Resemblance of Borderline Personality Disorder Features: Genetic or Cultural Transmission?

Borderline personality disorder is a severe personality disorder for which genetic research has been limited to family studies and classical twin studies. These studies indicate that genetic effects explain 35 to 45% of the variance in borderline personality disorder and borderline personality features. However, effects of non-additive (dominance) genetic factors, non-random mating and cultural transmission have generally not been explored. In the present study an extended twin-family design was applied to self-report data of twins (N = 5, 017) and their siblings (N = 1, 266), parents (N = 3,... Mehr ...