<tt id="6hsgl"><pre id="6hsgl"><pre id="6hsgl"></pre></pre></tt>
          <nav id="6hsgl"><th id="6hsgl"></th></nav>
          国产免费网站看v片元遮挡,一亚洲一区二区中文字幕,波多野结衣一区二区免费视频,天天色综网,久久综合给合久久狠狠狠,男人的天堂av一二三区,午夜福利看片在线观看,亚洲中文字幕在线无码一区二区

          Using Web to study dogs' minds

          Updated: 2013-05-05 07:37

          By Carl Zimmer(The New York Times)

            Print Mail Large Medium  Small

           Using Web to study dogs' minds

          Brian Hare, associate professor at Duke University, conducting a cognition exercise with Finley, an Australian Labradoodle. Dognition

          In 1995, Brian Hare began to wonder what his dog Oreo was thinking.

          At the time, he was studying animal psychology with Michael Tomasello at Emory University in Atlanta. Dr. Tomasello was comparing the social intelligence of humans and other animals. Humans, it was known at the time, are exquisitely sensitive to signals from other humans. We use that information to solve problems that we might struggle to figure out on our own.

          Dr. Tomasello discovered that chimpanzees, our closest living relatives, typically fail to notice much of this social information. Pointing to the location of a hidden banana will usually not help a chimp find the banana, for example. Perhaps the pointing test revealed something important about how the human mind evolved.

          But Mr. Hare had his doubts. "I think my dog can do that," he declared.

          To persuade his mentor, he videotaped Oreo chasing after tennis balls. And indeed, when he pointed left or right, off the dog would run, in the indicated direction, to find a ball.

          He then followed up with a full-blown experiment, using food hidden under cups in his garage; Oreo consistently picked out the right cup after Mr. Hare pointed to it, and other dogs (including some that had never seen Mr. Hare) did well, too. After he got his doctorate in biological anthropology from Harvard University, Dr. Hare and his colleagues finally published their results: Dogs could indeed pass the pointing test, while wolves, their wild relatives, could not.

          Dr. Hare, now an associate professor at Duke University in Durham, North Carolina, has continued to probe the canine mind, but his research has been constrained by the number of dogs he can study.

          Now he hopes to expand his research geometrically - with the help of dog owners around the world. He is the chief scientific officer of a new company called Dognition, which produces a Web site where people can test their dog's cognition, learn about their pets and, Dr. Hare hopes, supply him and his colleagues with scientific data on tens of thousands of dogs.

          "Because it's big data, we can ask questions that nobody could have a chance to look at," he said.

          Using Web to study dogs' minds

          From his previous research, Dr. Hare has argued that dogs evolved their extraordinary social intelligence once their ancestors began lingering around early human settlements. As he and his wife, Vanessa Woods, explain in their new book, "The Genius of Dogs," natural selection favored the dogs that did a better job of figuring out the intentions of humans.

          But while this evolution gave dogs one cognitive gift, it didn't make them more intelligent in general. "If you compare them to wolves as individuals, they look like idiots," Dr. Hare said. "But if you then show them having a human solve the problem, they're geniuses."

          To explore dog cognition further, he set up the Duke Canine Cognition Center in 2009. He and his colleagues built a network of 1,000 dog owners willing to bring in their pets for tests.

          Dr. Hare began to investigate new questions about dogs with this willing pack of animals. With a grant from the United States Office of Naval Research, for example, he is looking at ways to identify dogs for jobs like bomb detection.

          "They spend two years trying to get these dogs ready to go, and then most programs lose 7 out of 10," he said. "Maybe they can't take the commands, or maybe they can't take the perspective of the humans."

          He is trying to find the "cognitive style" of the successful service dogs. To do so, he and his colleagues have developed a battery of 30 tests that altogether take four hours to administer. They have tested 200 dogs and are searching for hallmarks that set the service dogs apart.

          He helped form Dognition, he said, partly because of interest from dog trainers who asked him if they could test their own dogs' cognitive style.

          The tests are now available online: For a fee, dog owners get video instructions for how to carry them out.

          Dr. Hare says his main goal is to build a database that will shed light on longstanding questions about behavior, breeding and genetics - for example, whether the cognitive styles of various breeds can be linked to their genes. (Dr. Miklosi cautions, however, that the data that comes from people playing games with their dogs in their living room won't be as carefully controlled as the experiments scientists run in their labs.)

          Dr. Hare hopes that scientists can use Dognition to deliver their insights to dog trainers.

          One hypothesis has already emerged from Dognition's users, Dr. Hare said. A surprising link turned up between empathy in dogs and deception.

          The dogs that are most bonded to their owners turn out to be most likely to observe their owner in order to steal food. Dr. Hare said: "I would not have thought to test for that relationship at Duke, but with Dognition we can see it."

          The New York Times

          (China Daily 05/05/2013 page11)

          主站蜘蛛池模板: 亚洲精品无amm毛片| 国产超碰无码最新上传| 国产精品成人午夜久久| 丁香五月婷激情综合第九色| 丰满人妻无码∧v区视频| 精品国产一区二区三区2021| 蜜桃臀av在线一区二区| 色欲色香天天天综合网站免费 | 91精品国产蜜臀在线观看| 无码一区二区三区av在线播放| 欧美成人精品在线| 尤物视频色版在线观看| 五月天福利视频| 亚洲一国产一区二区三区| 337P日本欧洲亚洲大胆在线| 亚洲av综合色区在线观看| 国产一区二区三区精品综合| 亚洲日韩亚洲另类激情文学 | 亚洲色大成网站WWW久久| 精品熟女少妇av免费观看| 亚洲av成人一区二区三区| 久久天堂综合亚洲伊人HD妓女| 自拍第一区视频在线观看| 国产激情视频在线观看首页| 中文字幕无码不卡在线| 日本一道一区二区视频 | www久久只有这里有精品| 亚洲精品理论电影在线观看| 亚亚洲视频一区二区三区| 久久久精品成人免费观看| 亚洲国产成人不卡高清麻豆| 在线精品自拍亚洲第一区| 91亚洲国产成人久久精| AV无码不卡一区二区三区| 色综合欧美亚洲国产| 国产精品免费AⅤ片在线观看| 性欧美三级在线观看| 久久精品国产亚洲AV成人毛片| 亚洲成a人无码av波多野| 综合图区亚洲欧美另类图片| 亚洲色欲天天天堂色欲网|