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Old 09-06-2007, 10:42 PM   #1
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Default Babies Vs. Chimps: Who's Smarter?

Chimps are smart, but humans are a lot smarter. Until now, there have been two competing ideas to explain why. The general-intelligence theory says that our bigger and more complex brains give us an overall edge. The cultural-intelligence hypothesis, by contrast, says that humans have specific areas of intelligence where we excel; our brains are not just bigger, but also better than those of our nearest evolutionary relatives.

A new study, published Thursday in Science, makes a strong case that the second theory is the right one. A team of anthropologists from the Max Planck Institute for Evolutionary Anthropology in Leipzig, Germany, developed a battery of learning tests they call the Primate Cognition Test Battery, and gave it to 106 chimps, 105 children and 32 orangutans, to compare the groups directly. Says Esther Hermann, a co-author of the paper: "It's the first time anything like this has been done."

The three groups performed about equally well on "physical learning" ? locating hidden objects, figuring out the source of a noise, understanding the concepts of more and less, using a stick to get something that's out of reach. And indeed, the kids were of an age ? 2 1/2 years old ? where it's widely known that they do perform about as well as chimps in such tests. So for example, the scientists would hide a treat of some kind ? a toy, or some food ? behind a box, while the test subjects looked on. The kids, chimps and orangs would have to be sophisticated enough to know that the object disappearing from view didn't mean it stopped existing, and had to be able to figure out where it had gone. All three groups did equally well at this sort of thing.

But when it came to "social learning" tasks ? such as understanding how to solve a problem by watching someone else do it, figuring out someone else's state of mind from their actions, or using nonverbal communication to explain or understand how to find something ? the kids made monkeys of the apes. In one test, for example, researchers showed both groups how to open up a plastic tube to get at a treat. The children learned by watching, and opened it as the adults did. The apes tended to just chew the tube open. In another, researchers would hide the treat while the test subjects were present. Then the subjects would have to find it, with the only clue being that the scientists would look toward the hiding place. Again, the kids beat the apes soundly.

If the kids had outperformed the apes across the board, on both types of task, it would have supported the "just generally smarter overall" theory. The fact that the children excelled in specific areas suggest it's the other theory that's right ? that our ability to cooperate and share expertise has allowed us to build complex societies, collaborate and learn from each other at a high level, and use symbolic representation (writing, numerals, imagery) to communicate ideas.

The question of exactly what it is that makes humans special, in short, may be on the way to being solved.

http://www.time.com/time/health/arti...0.html?cnn=yes
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Old 09-06-2007, 10:46 PM   #2
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Default Re: Babies Vs. Chimps: Who's Smarter?

I thought it was pretty interesting to read. But I wonder if there is a this kind of study between the Steelers fans vs. the Browns, or the Bengals, and the Ravens? LOL.

Atlanta Dan, I swear to God, this will be the last thread I'm posting here at the Locker Room section. Until next March.
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