正如 Bellak 和 Fielding 在《Diagno-sing Schizophrenia》中所述:“论述精神分裂症诊断问题,非常有益,众所关心,但是极其敏感的问题,意见殊不一致。文献之多,不胜枚举。原因是意见分歧过甚。”“(精神病的)任何诊断无可避免地受制于概念和假说的影响。因此,困难可以想见。精神分裂症太多不同或彼此迥异的概念。 As Bellak and Fielding put it in “Diagno-sing Schizophrenia”: “There are so many different opinions about the diagnosis of schizophrenia, that it is very helpful, that we are interested, but that we are extremely sensitive. There is too much divergence of opinion. ”“ Any diagnosis (of mental illness) is inevitably governed by concepts and hypotheses, so difficult to imagine. ”Schizophrenia has so many different or very different concepts.