狗可以学习重复人们教的动作
文章来源:未知 文章作者:enread 发布时间:2013-07-17 06:33 字体: [ ]  进入论坛
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Dogs can learn, retain and replay actions taught by humans after a short delay. According to a new study by Claudia Fugazza and Adám Miklósi, from Eötvös Loránd University in Hungary, this deferred1 imitation provides the first evidence of dogs' cognitive2 ability to both encode and recall actions. The research is published in Springer's journal Animal Cognition.
 
Domestic dogs are particularly keen on relying on human communication cues. They learn by observing humans and are easily influenced by humans in learning situations. Living in human social groups may have favored their ability to learn from humans.
 
Fugazza and Miklósi looked at whether dogs possess the cognitive ability of deferred imitation. Eight adult pet dogs were trained by their owners with the 'Do as I do' method and then made to wait for short intervals4 (5-30 seconds) before they were allowed to copy the observed human action, for example walk around a bucket or ring a bell. The researchers observed whether the dogs were able to imitate human actions after delays ranging from 40 seconds to 10 minutes, during which time the dogs were distracted by being encouraged to take part in other activities. The researchers were looking for evidence of the dogs' ability to encode and recall the demonstrated action after an interval3.
 
Fugazza described how one of the tests was carried out: "The owner, Valentina, made her dog, Adila, stay and pay attention to her, always in the same starting position. Three randomly5 chosen objects were set down, each at the same distance from Adila. When Adila was in position, Valentina demonstrated an object-related action, like ringing a bell with her hand.
 
"Then Valentina and Adila took a break and went behind a screen that was used to hide the objects, so that Adila could not keep her mind on the demonstration6 by looking at the object. During the break, Valentina and Adila either played with a ball or practiced a different training activity, for example, Valentina asked Adila to lie down. Or they both relaxed on the lawn and Adila was free to do whatever she wanted -- sniff7 around, bark at people passing by, and so on.
 
"When the break was over, Valentina walked with her dog back to the original starting position and gave the command 'Do it!'. In a control condition, the 'Do it!' command was given by someone other than the owner, who did not know what action had previously8 been demonstrated by the owner. After the 'Do it!' command, Adila typically performed the action that was previously demonstrated."
 
The tests show that dogs are able to reproduce familiar actions and novel actions after different delays ̶ familiar actions after intervals as long as ten minutes; novel tasks after a delay of one minute. This ability was seen in different conditions, even if they were distracted by different activities during the interval.
 
The authors conclude: "The ability to encode and recall an action after a delay implies that the dogs have a mental representation of the human demonstration. In addition, the ability to imitate a novel action after a delay without previous practice suggests the presence of a specific type of long-term memory in dogs. This would be so-called 'declarative memory,' which refers to memories which can be consciously recalled, such as facts or knowledge."


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1 deferred 43fff3df3fc0b3417c86dc3040fb2d86     
adj.延期的,缓召的v.拖延,延缓,推迟( defer的过去式和过去分词 );服从某人的意愿,遵从
参考例句:
  • The department deferred the decision for six months. 这个部门推迟了六个月才作决定。
  • a tax-deferred savings plan 延税储蓄计划
2 cognitive Uqwz0     
adj.认知的,认识的,有感知的
参考例句:
  • As children grow older,their cognitive processes become sharper.孩子们越长越大,他们的认知过程变得更为敏锐。
  • The cognitive psychologist is like the tinker who wants to know how a clock works.认知心理学者倒很像一个需要通晓钟表如何运转的钟表修理匠。
3 interval 85kxY     
n.间隔,间距;幕间休息,中场休息
参考例句:
  • The interval between the two trees measures 40 feet.这两棵树的间隔是40英尺。
  • There was a long interval before he anwsered the telephone.隔了好久他才回了电话。
4 intervals f46c9d8b430e8c86dea610ec56b7cbef     
n.[军事]间隔( interval的名词复数 );间隔时间;[数学]区间;(戏剧、电影或音乐会的)幕间休息
参考例句:
  • The forecast said there would be sunny intervals and showers. 预报间晴,有阵雨。
  • Meetings take place at fortnightly intervals. 每两周开一次会。
5 randomly cktzBM     
adv.随便地,未加计划地
参考例句:
  • Within the hot gas chamber, molecules are moving randomly in all directions. 在灼热的气体燃烧室内,分子在各个方向上作无规运动。 来自辞典例句
  • Transformed cells are loosely attached, rounded and randomly oriented. 转化细胞则不大贴壁、圆缩并呈杂乱分布。 来自辞典例句
6 demonstration 9waxo     
n.表明,示范,论证,示威
参考例句:
  • His new book is a demonstration of his patriotism.他写的新书是他的爱国精神的证明。
  • He gave a demonstration of the new technique then and there.他当场表演了这种新的操作方法。
7 sniff PF7zs     
vi.嗅…味道;抽鼻涕;对嗤之以鼻,蔑视
参考例句:
  • The police used dogs to sniff out the criminals in their hiding - place.警察使用警犬查出了罪犯的藏身地点。
  • When Munchie meets a dog on the beach, they sniff each other for a while.当麦奇在海滩上碰到另一条狗的时候,他们会彼此嗅一会儿。
8 previously bkzzzC     
adv.以前,先前(地)
参考例句:
  • The bicycle tyre blew out at a previously damaged point.自行车胎在以前损坏过的地方又爆开了。
  • Let me digress for a moment and explain what had happened previously.让我岔开一会儿,解释原先发生了什么。
TAG标签: human dogs ability
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