What does this research mean for the field?

Vulnerability to schizophrenia is genetically transmitted, as evidenced by a significantly higher prevalence of schizophrenia-related illness among biological relatives of adopted schizophrenics compared to their adoptive relatives, though environmental factors are also required for clinical development. Novelty: ClaimNovelty.INCREMENTAL. Consensus alignment: ConsensusAlignment.NEUTRAL.

September 1, 1971

Mental Illness in the Biological and Adoptive Families of Adopted Schizophrenics

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Abstract

Adoption has been used as a means of separating genetic and environmental factors in the transmission of schizophrenia among family members. In the study reported here, a significantly higher than usual prevalence of schizophrenia-related illness was found among the biological relatives of adopted schizophrenics, but not among their adoptive relatives. The findings support a genetic transmission of vulnerability to schizophrenia, but also imply the requirement of nongenetic, environmental factors for the development of clinical schizophrenic illness.

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Cite This Study

Kety et al. (Wed,) studied this question.

synapsesocial.com/papers/6a0993fa87ad1657d251782e https://doi.org/https://doi.org/10.1176/ajp.128.3.302

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