Is there really a schizophrenogenic parent?

Understandably, parents of schizophrenics find the classification of schizophrenogenic parent offensive. No one wants to believe that they could have caused, even inadvertently, such terrible suffering in someone they love. But therapists who treat schizophrenics generally report a parenting interaction different from that usual to neurotic patients. Communication deviance, measured from parental interaction, the Rorschach Inkblot Test, and the Thematic Apperception Test, has been found to characterize parents and adoptive parents of schizophrenics. Expressed emotion of parents increases rehospitalization. Genetic factors, at most, represent increased vulnerability