Borderline
För första gången gör man nu direkta studier av orsakskopplingen mellan borderline och barndomstruman. Det har man inte kunnat göra tidigare.
J Abnorm Psychol. 2013 Feb;122(1):180-94. doi: 10.1037/a0028328. Epub 2012 Jun 11.
Tests of a direct effect of childhood abuse on adult borderline personality disorder traits: a longitudinal discordant twin design. "Although childhood abuse, BPD traits, and internalizing and externalizing symptoms were all correlated, the discordant twin analyses and biometric modeling showed little to no evidence that was consistent with a causal effect of childhood abuse on BPD traits. Instead, our results indicate that the association between childhood abuse and BPD traits stems from common genetic influences that, in some cases, also overlap with internalizing and externalizing disorders. These findings are inconsistent with the widely held assumption that childhood abuse causes BPD, and they suggest that BPD traits in adulthood are better accounted for by heritable vulnerabilities to internalizing and externalizing disorders."