Understanding the Nature‒Nurture Debate
Author(s): Eric Turkheimer
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There are arguably few areas of science more fiercely contested than the question of what makes us who we are. Are we products of our environments or our genes? Is nature the governing force behind our behaviour or is it nurture? While it is now widely agreed that it is a mixture of both, discussions continue as to which is the dominant influence. This unique volume presents a clear explanation of heritability, the ongoing nature versus nurture debate and the evidence that is currently available. Starting at the beginning of the modern nature-nurture debate, with Darwin and Galton, this book describes how evolution posed a challenge to humanity by demonstrating that humans are animals, and how modern social science was necessitated when humans became an object of natural science. It clearly sets out the most common misconceptions such as the idea that heritability means that a trait is 'genetic' or that it is a justification for eugenics.
- Demonstrates how the nature-nurture debate can be applied to our daily lives, from influencing how we parent to our own self-awareness
- Explains the basics of quantitative genetics of human twins, with examples, showing the reader what a heritability coefficient is, and how to compute it from simple twin data
- Follows the transformation of behavior genetics from a basis in twins to the collection of human DNA after the Human Genome Project- this transformation is one of the most important scientific revolutions in the history of biology and psychology, and the story has never been told from beginning to end