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Home > Referenzen > Nachschlagewerke > Nature Via Nurture: Genes, Experience, and What Makes Us Human von Matt Ridley

Nature Via Nurture: Genes, Experience, and What Makes Us Human

Ridley, Matt
HarperCollins, 2003-04-29
ISBN 9780060006785
 
Product Description
Following his highly praised and bestselling book Genome: The Autobiography of a Species in 23 Chapters, Matt Ridley has written a brilliant and profound book about the roots of human behavior. Nature via Nurture explores the complex and endlessly intriguing question of what makes us who we are.
In February 2001 it was announced that the human genome contains not 100,000 genes, as originally postulated, but only 30,000. This startling revision led some scientists to conclude that there are simply not enough human genes to account for all the different ways people behave: we must be made by nurture, not nature. Yet again biology was to be stretched on the Procrustean bed of the nature-nurture debate. Matt Ridley argues that the emerging truth is far more interesting than this myth. Nurture depends on genes, too, and genes need nurture. Genes not only predetermine the broad structure of the brain, they also absorb formative experiences, react to social cues, and even run memory. They are consequences as well as causes of the will.
Published fifty years after the discovery of the double helix of DNA, Nature via Nurture chronicles a revolution in our understanding of genes. Ridley recounts the hundred years' war between the partisans of nature and nurture to explain how this paradoxical creature, the human being, can be simultaneously free-willed and motivated by instinct and culture. Nature via Nurture is an enthralling,up-to-the-minute account of how genes build brains to absorb experience.
Amazon.com Review In the follow-up to his bestseller, Genome, Matt Ridley takes on a centuries-old question: is it nature or nurture that makes us who we are? Ridley asserts that the question itself is a false dichotomy. Using copious examples from human and animal behavior, he presents the notion that our environment affects the way our genes express themselves.
Ridley writes that the switches controlling our 30,000 or so genes not only form the structures of our brains but do so in such a way as to cue off the outside environment in a tidy feedback loop of body and behavior. In fact, it seems clear that we have genetic thermostats that are turned up and down by environmental factors. He challenges both scientific and folk concepts, from assumptions of what's malleable in a person to sociobiological theories based solely on the selfish gene.
Ridley's proof is in the pudding for such touchy subjects as monogamy, aggression, and parenting, which we now understand have some genetic controls. Nevertheless, the more we understand both our genes and our instincts, the less inevitable they seem. A consummate popularizer of science, Ridley once again provides a perfect mix of history, genetics, and sociology for readers hungry to understand the implications of the human genome sequence. --Therese Littleton
Kritik von Amazon © Nature via Nurture; the title sounds like a dead horse that doesn't need to be beaten any more. I decided to pick this one up because I love Ridley's work, and because it is read by the author. What a treat that is! With the author reading the book, you know that the nuances are correct, and that the abridgement isn't harming the message.
The discussions in this book are dramatically and importantly different from other discussions of Nature/Nurture, and I can hardly recommend it strongly enough. What is different is the degree of specificity that Ridley brings to the conversation. He demonstrates from a dozen different points of view HOW causality flows both ways, from the genes to the environment and back. He also pokes holes in logical fallacies one hears all the time - for example, the assertion that a feature is not genetic because the specific genes have not (and in some cases may not ever) been identified. A well-constructed twin study positively identifies heritability of traits; tracking that heritability back to a spot on a chromosome is useful and interesting but not necessary.
There is also basic science here that the lay reader might not otherwise learn for years. For instance, until very recently it was thought that there was a one to one correlation between genes and their proteins. It was also unknown what, if any, purpose breaking genes apart into exons on the chromosome served. Now we have discovered that many - ninety five on one mouse gene - different versions of one exon can exist on the chromosome, allowing one gene to make many different versions of its protein. Different versions mediated by... environment, of course.
Much of the information here is counter-intuitive. For instance, the more egalitarian a society is, the more the heritabilaty of traits becomes manifest. Potentially confusing, certainly mind-bending, and who better than Ridley to explain it?
If you are interested in biology, read this book.
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