Twin Study
Viola Bernard, a renowned New York psychologist, had persuaded Louise Wise Services, the adoption agency, to send twins to different homes, without telling the respective adoptive parents that the children were twins, and then researchers secretly followed their progress. She believed that identical twins would better forge individual identities if separated. By the time the twins started to investigate the adoption, Bernard had already died, but the twins found New York University psychiatrist Peter Neubauer who had studied the twins.
The twin study they were involved with was never completed. The practice of separating twins at birth ended in the state of New York in 1980, a year after the Bernard study ended. Neubauer reportedly had Yale University lock away and seal the study until 2066. He realized that public opinion would be so against the research that he decided not to publish it. Efforts to have Yale University release the records by the sisters and other twins have failed.
The Neubauer study differs from all other twin studies in that it followed the twins from infancy. The biggest surprise to come from the Bernard research is that twins reared apart aren't any more different than those reared together. This suggests children's differences are not forged by their families but by other, subtler factors.
Read more about this topic: Identical Strangers
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