Lange E, Ficker F
Psychiatr Clin (Basel). 1976;9(3-4):168-82.
Symbiontic psychoses (induced delusions) are marked by 'solitude by twos'--together in alienation to the environment. This special psychological situation is dangerous and the foundation to develop 'suicides by twos' (double suicides). The relations between the psychotic partners (domination-subordination) change over to relations of double suicide (instogator-participant). The presuicide syndrome of such double suicides is described with two cases, one at the psychopathological borderline to a symbiontic psychosis, the other on the culmination of it (delusion of influence and reference).
共生性精神病（诱发妄想）的特征是“两人独处”——虽在一起却与环境相疏离。这种特殊的心理状况很危险，是产生“两人自杀”（双双自杀）的基础。精神病患者伴侣之间的关系（主导—从属）转变为双双自杀的关系（煽动者—参与者）。通过两个案例描述了这种双双自杀的自杀前综合征，一个案例处于与共生性精神病的精神病理学临界状态，另一个案例处于该病症的顶峰状态（被影响和被提及的妄想）。
