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Learn to Shake Your New Tail as a Virtual Animal, Newscientist, June 20th, 2013
學(xué)會如何像虛擬動物一樣搖擺你的新尾巴，新科學(xué)家科技雜志，2013年6月20日
Virtual worlds are fun to explore,but what about virtual bodies?
探索虛擬世界很有趣，但如果是虛擬的身體呢？
It turns out we can quickly learn to control an avatar in the form of an animal if our movements are mapped on to its digital representation.
調(diào)查顯示，如果我們的動作可以通過數(shù)字表象繪制出來，我們可以很快學(xué)會任何控制一個動物形狀的頭像。
William Steptoe and colleagues at University College London gave 32 volunteers an avatar with a tail and allowed some of them to control it by moving their own bodies.
斯特普托·威廉和他的英國倫敦大學(xué)學(xué)院同事提供32名志愿者一個有尾巴的頭像化身，并讓其中一些人通過移動自己的身體來控制它。
The volunteers then played a virtual-reality game in which they had to use the avatar's hands or tail to hit colored lights that lit up in rings around it.
然后，志愿者參加了一個虛擬實景的游戲，在游戲中他們必須使用化身的手或尾巴擊打他們周圍轉(zhuǎn)圈的彩燈。
Lights in the outer ring could only be hit with the tail, which could extend about half a metre beyond what the avatar's hands could reach.
如果燈在圈外，則只能被尾巴擊中，尾巴可以伸出半米長，這超出了化身的手所能夠到的范圍。
None of the volunteers was told how to control the tail, but half of them were given the ability to move it by twisting their hips while the other half had a tail that moved at random.
事先，沒有教志愿者如何控制尾巴，但其中有一半可以通過扭動臀部來移動尾巴，而另一半只是胡亂地擺動尾巴。
Those with a controllable tail had their hip position tracked by cameras 60 times a second, with the readings mapped on to the position of the tail.
60次/秒的攝像機跟蹤拍攝那些可控尾巴的人的臀部位置，并由數(shù)據(jù)映射出尾巴的位置。
The team found that people who could control the tail learned quickly.
研究小組發(fā)現(xiàn)，那些可以控制尾巴的人學(xué)習(xí)得很快。
By the end of the 10-minute game they were as good at hitting the lights with their tail as they were with their hands.
十分鐘游戲結(jié)束的時候，他們已經(jīng)可以成功地用尾巴輕松的擊中那些燈了，就像用手一樣。
But while they were learning, they temporarily became less competent with their hands.
但在他們學(xué)習(xí)的同時，他們的雙手暫時就變得不是那么靈活。
Steptoe thinks this because mastering a new body part requires the brain to give less priority to existing ones. Thank you.
斯特普托認為，這是因為要想掌握身體一個新的部位，就需要大腦更少的關(guān)注身體已有的。謝謝。
