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Chapter Two - Nature More than Nurture

The Impact of Genetics on Intelligence

Published online by Cambridge University Press:  13 July 2023

Richard J. Haier
Richard J. Haier
Affiliation:
University of California, Irvine
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Summary

Chapter 2 epigraph the overwhelming evidence that there are major genetic influences on intelligence and its development. Conclusive studies from quantitative and molecular genetics leave no doubt about this. Since genes always work through biological mechanisms, there must be a neurobiological basis for intelligence, even when there are environmental influences on those mechanisms. Polygenic scores based on DNA can predict IQ.

Keywords

twinsadoptionbehavioral geneticsmolecular geneticspolygenic scores
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Chapter
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The Neuroscience of Intelligence , pp. 40 - 74
Publisher: Cambridge University Press
Print publication year: 2023

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  • Nature More than Nurture
  • Richard J. Haier, University of California, Irvine
  • Book: The Neuroscience of Intelligence
  • Online publication: 13 July 2023
  • Chapter DOI: https://doi.org/10.1017/9781009295055.004
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  • Nature More than Nurture
  • Richard J. Haier, University of California, Irvine
  • Book: The Neuroscience of Intelligence
  • Online publication: 13 July 2023
  • Chapter DOI: https://doi.org/10.1017/9781009295055.004
Available formats
×

Save book to Google Drive

To save content items to your account, please confirm that you agree to abide by our usage policies. If this is the first time you use this feature, you will be asked to authorise Cambridge Core to connect with your account. Find out more about saving content to Google Drive.

  • Nature More than Nurture
  • Richard J. Haier, University of California, Irvine
  • Book: The Neuroscience of Intelligence
  • Online publication: 13 July 2023
  • Chapter DOI: https://doi.org/10.1017/9781009295055.004
Available formats
×