Scharfetter C
Schweiz Arch Neurol Neurochir Psychiatr. 1979;125(2):301-13.
The family-heredity findings serving as criteria for the classification of functional psychoses are discussed, presenting recent data. The global morbidity risk of the resp. psychosis showing secondary cases similar (homotypical) to the index case and no increased incidence of cases of the other type may be interpreted by the theory of two separated genetically transmitted diseases (schizophrenias and affective disorders). The classical schizophrenic subtypes differ in their global schizophrenia morbidity risk and show a tendency toward homotypical secondary cases. Monopolar and bipolar affective disorders were found to be very close together concerning family-genetic data-Schizo-affective psychotics were found to have among their relatives the highest incidence of all types of functional psychoses at all, a high rate of schizophrenics (esp. catatonic type) and affective psychotics and no homotypical secondary cases.
讨论了作为功能性精神病分类标准的家族遗传研究结果，并展示了近期数据。相应精神病的总体发病风险表现为，继发性病例与索引病例相似（同型），且其他类型病例的发病率未增加，这可以用两种独立的遗传传播疾病（精神分裂症和情感障碍）理论来解释。经典的精神分裂症亚型在总体精神分裂症发病风险上有所不同，并表现出同型继发性病例的倾向。就家族遗传数据而言，单极和双极情感障碍非常相似——分裂情感性精神病患者的亲属中，所有类型功能性精神病的发病率总体最高，精神分裂症患者（尤其是紧张型）和情感性精神病患者的比例很高，且没有同型继发性病例。
