Incredible achievement recorded on their American Professor.
A primatologia at the University of Kyoto, checking whether chimpanzees (Pan troglodytes) to solve complex problems, taught them to play “rock, scissors, paper”.
It turned out that monkeys can learn to play it, and play around with the same precision that a four-year old children. The study is published in Primates.
As of today, much research is devoted to studying the intelligence of chimpanzees. These monkeys use tools to get their food and successfully teach this ability to their offspring. They can learn absolutely not practical things that help them get food, and just entertain. Numerous experiments have shown that chimpanzees (and other apes) are able to communicate in American sign language amslen. They can learn it at the level of a two year old child and teach him other monkeys.
Japanese primatologia decided to find out whether monkeys learn to solve non-linear tasks, and more complex “circular”. It has multiple elements, each of which can be “stronger” than the other, while their roles may change. For example, in the game “rock, scissors, paper”.
The researchers conducted experiments with the participation of seven chimpanzees of different ages who live in the Primate Center at Kyoto University. Monkeys were taught to choose on the touch screen a “strong” option first in a pair of “stone-paper”, then in a pair of “rock-paper-scissors”, and last but not least — a pair of “scissors-paper”. Then they were shown a sequence of pairs: “stone-paper”, “rock-paper-scissors”, “scissors-paper”. Once the chimpanzees had learned the relationship in each pair and assimilate their sequence (giving the correct answer in 90 percent of cases), they were shown pairs alternately. Then the same experiment was conducted with 38 children aged from three to six years.
As a result, five of the seven chimpanzees learned to correctly identify pairs. Most of the time (average of 14 sessions with 48 attempts in each), the monkeys were required to learn a third pair of “scissors — paper”. The first (“stone-paper”) and the second (“rock-paper-scissors”) pair they learned, on average for 1.7 and three sessions, respectively. From this, the researchers concluded that it is most difficult for a chimpanzee to understand that the pair is “circle” and “close” circle the third pair.
34 of the 38 child successfully learned to play “rock, scissors, paper”. Children in all three marriages lasted approximately the same number of attempts. On average, 6.7 sessions on 12 attempts in each for the first couple, 6 sessions on the second and 5 on third. However, their results depended on age: the older the children were, the greater the number of correct answers they gave. Children around the age of 50 months (four years and two months) when they were shown a pair of objects mixed together, gave approximately the same number of correct answers, and chimpanzees.
Previously, researchers have found that chimps are capable of reflection: they track in some cases they were right but some were wrong. They can also realize that the thoughts and beliefs of other individuals may differ from their own.
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