2006年发表在JournalofNeurogenetics的一份研,伦贝加斯医院的心理学家招募了一个姐弟俩和们的亲生父母组成的家庭。
In a 2006 study published in the Journal of Neurogenetics, psychologists at Baycrest Hospital in Toronto recruited families composed of an adult brother and sister and their biological parents.