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The evolutionary roots of human behaviour

Anthony Gottlieb writing in the New Yorker:

Indeed, the guilty secret of psychology and of behavioral economics is that their experiments and surveys are conducted almost entirely with people from Western, industrialized countries, mostly of college age, and very often students of psychology at colleges in the United States. This is particularly unfortunate for evolutionary psychologists, who are trying to find universal features of our species. American college kids, whatever their charms, are a laughable proxy for Homo sapiens. The relatively few experiments conducted in non-Western cultures suggest that the minds of American students are highly unusual in many respects, including their spatial cognition, responses to optical illusions, styles of reasoning, coöperative behavior, ideas of fairness, and risk-taking strategies. Joseph Henrich and his colleagues at the University of British Columbia concluded recently that U.S. college kids are “one of the worst subpopulations one could study” when it comes to generalizing about human psychology. Their main appeal to evolutionary psychologists is that they’re readily available. Man’s closest relatives are all long extinct; breeding experiments on humans aren’t allowed (they would take far too long, anyway); and the mental life of our ancestors left few fossils.

He concludes:

Barash muses, at the end of his book, on the fact that our minds have a stubborn fondness for simple-sounding explanations that may be false. That’s true enough, and not only at bedtime. It complements a fondness for thinking that one has found the key to everything. Perhaps there’s an evolutionary explanation for such proclivities.

Still curious? Check out Barash’s book, Homo Mysterious: Evolutionary Puzzles of Human Nature, for yourself.

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