Stephen Colbert: We Don't Need To 'Keep Fear Alive' - 1 views
www.huffingtonpost.com/...-fear-alive-for-_b_746255.html
human science evolution fear negativity bias psychology
shared by anonymous on 06 Oct 10
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anonymous on 06 Oct 10"How do we tell the difference between real threats and bogus ones? (This is important for many reasons; for one, chasing fake threats takes away resources from real issues.) But it's tough to do, since evolution has given us a brain with what scientists call a "negativity bias" that makes it prone to feeling threatened. This bias developed because the ancient mammals, primates, and early humans that were all mellow and fearless did not notice the shadow overhead or slither nearby that CHOMP! killed them. The ones that survived to pass on their genes were nervous and cranky, and we are their great-grandchildren, sitting atop the food chain, armed with nuclear weapons. Your brain is continually looking for bad news. As soon as it finds some, it fixates on it with tunnel vision, fast-tracks it into memory storage, and then reactivates it at the least hint of anything even vaguely similar. But good news gets a kind of neural shrug: "uh, whatever." In effect, the brain is like Velcro for negative experiences but Teflon for positive ones. All this makes human beings super-sensitive to apparent threats. Basically, in evolution, there are two kinds of mistakes: (1) You think there is a tiger in the bushes but there isn't one, and (2) You think the coast is clear, no tiger in the bushes, but there really is one about to pounce. These mistakes have very different consequences. The first one will make you anxious, but the second one will kill you. That's why Mother Nature wants you to make the first mistake a thousand times over in order to avoid making the second mistake even once. This hard-wired tendency toward fear affects individuals, groups (from couples to multinational corporations), and nations. It makes them overestimate threats, underestimate opportunities, and underestimate resources. "