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See Dan read: Baboons can learn to spot real words
Question of the Day
WASHINGTON (AP) - Dan the baboon sits in front of a computer screen. The letters BRRU pop up. With a quick and almost dismissive tap, the monkey signals it’s not a word. Correct. Next comes, ITCS. Again, not a word. Finally KITE comes up.
He pauses and hits a green oval to show it’s a word. In the space of just a few seconds, Dan has demonstrated a mastery of what some experts say is a form of pre-reading and walks away rewarded with a treat of dried wheat.
Dan is part of new research that shows baboons are able to pick up the first step in reading _ identifying recurring patterns and determining which four-letter combinations are words and which are just gobbledygook.
The study shows that reading’s early steps are far more instinctive than scientists first thought and it also indicates that non-human primates may be smarter than we give them credit for.
“They’ve got the hang of this thing,” said Jonathan Grainger, a French scientist and lead author of the research.
Baboons and other monkeys are good pattern finders and what they are doing may be what we first do in recognizing words.
It’s still a far cry from real reading. They don’t understand what these words mean, and are just breaking them down into parts, said Grainger, a cognitive psychologist at the Aix-Marseille University in France.
In 300,000 tests, the six baboons distinguished between real and fake words about three-out-of-four times, according to the study published in Thursday’s journal Science.
The 4-year-old Dan, the star of the bunch and about the equivalent age of a human teenager, got 80 percent of the words right and learned 308 four-letter words.
The baboons are rewarded with food when they press the right spot on the screen: A blue plus sign for bogus combos or a green oval for real words.
Even though the experiments were done in France, the researchers used English words because it is the language of science, Grainger said.
The key is that these animals not only learned by trial and error which letter combinations were correct, but they also noticed which letters tend to go together to form real words, such as SH but not FX, said Grainger. So even when new words were sprung on them, they did a better job at figuring out which were real.
Grainger said a pre-existing capacity in the brain may allow them to recognize patterns and objects, and perhaps that’s how we humans also first learn to read.
The study’s results were called “extraordinarily exciting” by another language researcher, psychology professor Stanislas Dehaene at the College of France, who wasn’t part of this study. He said Grainger’s finding makes sense. Dehaene’s earlier work says a distinct part of the brain visually recognizes the forms of words. The new work indicates this is also likely in a non-human primate.
This new study also tells us a lot about our distant primate relatives.
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