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“The History of Twins, As a Criterion of the Relative Powers of Nature and Nurture” (1875), by Francis Galton
By: Mudhaffar Bahjat
| Published: Dec 19, 2017
In the article “The History of Twins, As a Criterion of the Relative Powers of Nature and Nurture,” Francis Galton describes his study of twins.…
LiteratureNature and nurtureGeneticsHeredityTwins
“Sources of Human Psychological Differences: The Minnesota Study of Twins Reared Apart” (1990), by Thomas J. Bouchard Jr, David T. Lykken, Matthew McGue, Nancy L. Segal and Auke Tellegen
By: Mudhaffar Bahjat
| Published: Oct 19, 2017
In 1990, Thomas J. Bouchard and his colleagues published the paper “Sources of Human Psychological Differences: The Minnesota Study of Twins Reared…
LiteratureNature and nurtureGeneticsHeredityTwin Study
Franz Josef Kallmann (1897–1965)
By: Jessica Resnick
| Published: Apr 06, 2017
Franz Josef Kallmann studied the biological and genetic factors of psychological disorders in Germany and the United States in the twentieth century…
SchizophreniapsychologyGenetic psychologyHuman GeneticsHomosexuality